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SQL Error ORA-00942 Table or View Does Not Exist in Oracle Database
 
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How to use Tab View (Data Dictionary) of Oracle Database to solve the SQL Error ORA-00942 Table or View Does Not Exist error in Oracle Database ------------------------------------------------------------------------ ►►►LINKS◄◄◄ Blog: http://bit.ly/ora-00942 Previous Tutorial ► ------------------------------------------------------------------------- ►Make sure you SUBSCRIBE and be the 1st one to see my videos! ------------------------------------------------------------------------- ►►►Find me on Social Media◄◄◄ Follow What I am up to as it happens on https://twitter.com/rebellionrider http://instagram.com/rebellionrider https://plus.google.com/+Rebellionrider http://in.linkedin.com/in/mannbhardwaj/ ___Facebook Official Page of Manish Sharma___ https://www.facebook.com/TheRebellionRider/ ___Facebook Official Page of RebellionRider.com___ https://www.facebook.com/RebellionRider.official/ You can also Email me at for E-mail address please check the About section Please please LIKE and SHARE my videos it makes me happy. Thanks for liking, commenting, sharing and watching more of our videos This is Manish from RebellionRider.com ♥ I LOVE ALL MY VIEWERS AND SUBSCRIBERS
Views: 8770 Manish Sharma
PostgreSQL psql How to check if a table exists in a given schema
 
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POSTGRESQL psql How to check if a table exists in a given schema # CREATE DATABASE testdb; * list all dbs # \l # \l testdb * change database, connect to new database # \c testdb; # \connect testdb * list all tables # \d * describe all tables # \d table_name # \d+ table_name * quit # \q
Views: 293 OSPY
IN VS EXISTS VS JOIN, performance
 
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This video demonstrates the performance effects of using an exists clause instead of an IN clause, also it shows how we can update a simple sub query having an IN clause with an EXISTS or JOIN statement. It also shows that joining would consider the null data, where as an IN clause would neglect null values. If you want more such videos of exciting and amazing 'difference between' concepts, check out the links below : union and union all : https://youtu.be/n9FqQOd8liY char and varchar2 : https://youtu.be/039qzwjWf4k replace and translate : https://youtu.be/HKYF77BGzOE procedure and function : https://youtu.be/q3LmOenL120 rank and dense_rank : https://youtu.be/WGSX998hZ9M delete and truncate : https://youtu.be/u76wMm2byXo %type and %rowtype : https://youtu.be/MlLUFeZ_3eM
Views: 13519 Kishan Mashru
How To Check If Column Exists for a Table Or View in Database in SQL Server - SQL Server Tutorial
 
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On daily basis, we come across this scenario when we have to find out if a column exists for a Table or View in Database. Specially if we are debugging SQL Server Reports/An application, we take a column name or part of it and want to know that from which table this column is used. We can query INFORMATION_SCHEMA.COLUMNS view to get this information. blog post link for scripts used in this video http://sqlage.blogspot.com/2014/01/tsql-how-to-check-if-column-exists-for.html
Views: 5172 TechBrothersIT
HOW TO CHECKING IF TEMPORARY TABLE EXISTS IN TEMPORARY DATABASE IN SQL SERVER
 
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HOW TO CHECKING IF TEMPORARY TABLE EXISTS IN TEMPORARY DATABASE IN SQL SERVER HD Video
Views: 798 Sourn Sarim
Java & MySQL - Check if a value already exists
 
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Easy tutorial on how to check if a value already exists in the database.
Views: 30994 Mozoran
Finding Database Columns By Name in Oracle SQL Developer
 
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How to find all columns in your Oracle Database by searching on the name.
Views: 7382 Jeff Smith
How to find duplicate records in table sql
 
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There are various times when we need to find duplicate records in SQL Server. It is possible to find duplicates using DISTINCT, ROW NUMBER as well as the GROUP BY approach. ------------- May be you like this -------------- umbraco playlist : https://www.youtube.com/watch?v=zoefdruzmGE&list=PLv0T7WlllnSnYRedhwL8x-atkVxrSdd3m Angularjs playlist : https://www.youtube.com/watch?v=KXjD1RiAz1U&list=PLv0T7WlllnSkCfNftTNY8tWqCFWT0sIMd jquery playlist : https://www.youtube.com/watch?v=jVncasz_iyw&list=PLv0T7WlllnSkkNahiiWu_GMXq49X5ccfe F Wcf playlist : https://www.youtube.com/watch?v=NB4k0RC6vl0&list=PLv0T7WlllnSmcGHacEQnLgKvitcJEsSl6 c# playlist: https://www.youtube.com/watch?v=ZrP0NKbsr8s&list=PLv0T7WlllnSl9pZWMaMGsyoAmqZtW4gM0 Duplicate records can create problems sometimes when displaying reports or performing a Multiple Insert update. Finding duplicate records in a database needs further investigation. In some cases, duplicate records are positive, but it all depends on the data and the database design as well. For example, if a customer has ordered the same product twice on the same date with the the same shipping and billing address, then this may result in a duplicate record.
Views: 16638 Go Freelancer
Oracle SQL Tutorial 22 - Why Primary Keys Shouldn't Change
 
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In the last video I mentioned that with our database design it is important to make sure that nobody tries to update a user's username. What happens if they do? Nothing horrible, Oracle will just throw an error. That's not such a big deal, but if you are hoping to make some kind of application that allows someone to change their username, this is not the best set up. Why? If you look at the projects table, we have a foreign key that references the username. Let's assume for a moment that Oracle allows you to do anything with your data. That means that if a user updates their username, there will be projects created by users that don't exist. Or a user could change their name to the previous owner. To fix this problem, we would need something such as an ON UPDATE CASCADE command for our foreign key. That would mean that if the user updated their username, the columns that reference that username would also update to the new value. This exists in some database management systems, but this does not exist in Oracle at the time of this video. How do we get around this problem? I'm sure we could conjure up something to allow us to update the username, but the easiest solution is to reference the user_id instead of the username. That way, when the username is updated, nothing changes inside of the foreign key. As a general rule, primary keys should never change. Foreign keys CAN change, but they should not change because a primary key changed. So, if we did happen to use a username as a column, it would be frowned upon if the username had to change because the column it references changes. However, it would be acceptable to change the foreign key if we needed to point to a new entity in the users table. Even if a username is never intended to change, these complications bother a lot of people. You can mitigate these problems by only referencing surrogate keys in foreign keys. This has the downside though that when you retrieve the data, you are going to have to do more work to make the data readable. For example, we had a table that was called project_users. It is essentially a table that says what users are part of what projects. We could have the foreign keys reference the project's name and the user's username. Then when you could say SELECT * FROM project_users. The data would be completely readable without doing anything. If you switch to only referencing surrogate primary keys, you will have a bunch of random numbers that don't mean anything and will have to be joined with other tables…which is really super frustrating when later you have to join a thousand tables to read anything. Which side do you prefer? Pick a side. Choose wisely. I'll see you all in the next video ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ HELP ME! http://www.patreon.com/calebcurry Subscribe to my newsletter: http://bit.ly/JoinCCNewsletter Donate!: http://bit.ly/DonateCTVM2. ~~~~~~~~~~~~~~~Additional Links~~~~~~~~~~~~~~~ More content: http://CalebCurry.com Facebook: http://www.facebook.com/CalebTheVideoMaker Google+: https://plus.google.com/+CalebTheVideoMaker2 Twitter: http://twitter.com/calebCurry Amazing Web Hosting - http://bit.ly/ccbluehost (The best web hosting for a cheap price!)
Views: 6678 Caleb Curry
MSSQL   Check if index exists and if exists delete it
 
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More: http://howtodomssqlcsharpexcelaccess.blogspot.ca/2016/02/mssql-check-if-index-exists-and-if.html
Views: 539 Vis Dotnet
ORACLE SQL INTERVIEW QUESTION : HOW TO SELECT ODD OR EVEN ROWS FROM A TABLE IN ORACLE
 
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This video tutorial answers the frequently asked interview question, how to select only odd or even records in oracle sql, after watching this video you will understand more on the topic and will be able to answer this interview question with a lot of confidence.
Views: 4935 Kishan Mashru
EXISTS Condition in Oracle Database
 
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#Exists oracle exists vs in, if exists in oracle, oracle not exists vs not in, difference between in and exists in oracle, case when exists oracle, oracle check if record exists, if not exists in oracle, oracle update where exists
Views: 51 Adam Tech
insert data that not exist in second table in oracle sql.
 
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this tutorial in insert data that not exist in second table means you can select the who table. in oracle you have to learn about all concept and query that help full in features. #insert #oracletutorial #oracleprogramming #multiinsert
Views: 18 EasyWay Coding
before Insert Record in Database Check duplicate value| Insert |Search|Update in VB.NET with code
 
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before insert record in Database check duplicate value| insert |search|update in vb.net with source code.check duplicate value if not found then insert record in database.... #searching record in database #upadate record in database #How_to_Update_Record_in_database #how_to_Delete_record_in_database Original Credits: who made this video CODERBABA and YOUTUBE. ........................... my website https://goo.gl/yMhpe3 ............................. Thanks for watching these videos , hit like , subscribe our channel n yes don't forget to share with you friends ............................ Thanks for being with us make sure you share and stay with us with subscribing us - regards CODERBABA, codr baba, CODER BABA,Coder Baba,CoderBaba ?? ...................... Follow Us Socially ?? Facebook : https://goo.gl/tEWJ6X Instagram : https://goo.gl/2Z3nBs Twitter : https://goo.gl/Yrnxvd ............................ NO COPYRIGHT INFRINGEMENT IS INTENDED THIS PURELY FOR PROMOTING MYSELF AND SHOWING MY SKILLS AS YOUTUBE BLOGGER. THIS IS PURELY FOR NON PROFIT. ............................ LIKE ? SHARE ? SUBSCRIBE ............................ See you in next video, have a nice day. GOOD LUCK
Views: 14546 Coder Baba
PL/SQL tutorial 60: Collection Method EXISTS in Oracle Database by Manish Sharma
 
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RebellionRider presents you the latest PL/SQL Tutorial 60 on Collection method EXISTS by Manish Sharma ------------------------------------------------------------------------ ►►►LINKS◄◄◄ Blog : http://bit.ly/exists-function Previous Tutorial ► ------------------------------------------------------------------------- ►Make sure you SUBSCRIBE and be the 1st one to see my videos! ------------------------------------------------------------------------- ►►►Find me on Social Media◄◄◄ Follow What I am up to as it happens on https://twitter.com/rebellionrider http://instagram.com/rebellionrider https://plus.google.com/+Rebellionrider http://in.linkedin.com/in/mannbhardwaj/ ___Facebook Official Page of Manish Sharma___ https://www.facebook.com/TheRebellionRider/ ___Facebook Official Page of RebellionRider.com___ https://www.facebook.com/RebellionRider.official/ You can also Email me at for E-mail address please check the About section Please please LIKE and SHARE my videos it makes me happy. Thanks for liking, commenting, sharing and watching more of our videos This is Manish from RebellionRider.com ♥ I LOVE ALL MY VIEWERS AND SUBSCRIBERS
Views: 8402 Manish Sharma
SQL Server 25 - Drop Table
 
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In the previous video I created a table with the bare minimum information. If we want SQL Server to really understand how our database should work, we have to give it some extra information. The problem is though that if we try to run the CREATE TABLE command again the database will complain that the table already exists. This video will teach you how to DROP (delete) a table. DROP TABLE Animals Just remember that the syntax is almost identical to CREATE TABLE with the exception of having no parenthesis. That's because we don't have to specify any columns because we are getting rid of the whole thing. Be warned before doing this though because it will delete all of the data inside of the table if there is any. The second problem we will encounter is that if we try to get rid of the table and it has already been dropped. The problem here is that as we are practicing CREATE TABLE we don’t want to have to worry about figuring out if the table already exists before we try dropping it. We essentially want a way to say "If this table already exists, delete it." There is actually a very easy way to do this in SQL Server: DROP TABLE IF EXISTS Animals Now, if the table does it exist it will be dropped, if it doesn't then nothing will happen. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Support me! http://www.patreon.com/calebcurry Subscribe to my newsletter: http://bit.ly/JoinCCNewsletter Donate!: http://bit.ly/DonateCTVM2. ~~~~~~~~~~~~~~~Additional Links~~~~~~~~~~~~~~~ More content: http://CalebCurry.com Facebook: http://www.facebook.com/CalebTheVideoMaker Google+: https://plus.google.com/+CalebTheVideoMaker2 Twitter: http://twitter.com/calebCurry Amazing Web Hosting - http://bit.ly/ccbluehost (The best web hosting for a cheap price!)
Views: 3377 Caleb Curry
Oracle SQL Tutorial 13 - How to Add Column Constraints (Attributes)
 
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So far, we have this table declaration: CREATE TABLE users( user_id NUMBER, username VARCHAR(50 CHAR) first_name VARCHAR2(50 CHAR), last_name VARCHAR2(50 CHAR) ) We can run this command see that it works. As we are learning though, we are going to want to be able to recreate our table with different settings and such, but if you try to run this command, it will complain that the table already exists. So we first need to delete this table before we start editing settings. When we get more experienced, we will learn about ways to edit the structure of a table that already exists. To fix this, we can get rid of the table using the DROP TABLE command: DROP TABLE users You can run this every time if you need to practice by adding a semicolon after it. This is how you can tell Oracle that you are putting in another command after it. This is known as a delimiter. When you run the script, it is going to run both commands. Now we can go through and reconsider our table structure. This is fine for starting out because we don't have any important data in our database, but once your database is in production you are not going to want to just drop tables. In the last video we discussed different constraints that you can apply to columns in a database table, but how do you actually apply these when you are creating a table? The first way you define constraints is to put them right after the column in your CREATE TABLE statement. CREATE TABLE users( username VARCHAR2(50 CHAR) NOT NULL ) When we define constraints this way, we usually say we are adding column attributes. If you have two constraints you want to add, you just put one after the other with spaces in between. There is no particular order that is required. CREATE TABLE users( username VARCHAR2(50 CHAR) NOT NULL UNIQUE ) In this situation we have already given the column the NOT NULL and UNIQUE attributes, so we should consider making this a primary key: CREATE TABLE users( username VARCHAR2(50 CHAR) PRIMARY KEY ) As you can see, adding column attributes is super easy. We can add a default like this: CREATE TABLE users( username VARCHAR2(50 CHAR) PRIMARY KEY, account_balance NUMBER DEFAULT 0 ) Note that now we need the comma after the first row. There are a few constraints we did not talk go through an example, specifically foreign keys and check constraints. We will be adding these constraints to our database in future videos. In the mean time, I have a thought for you… Many people prefer to name their column constraints. That way, we can refer to certain constraints by name. For example, we might have a primary key constraint that could be named users_pk. The way we are creating these constraints does not allow for this feature, so in the next video we are going to be discussing different ways to create constraints. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Support me on Patreon! http://www.patreon.com/calebcurry Subscribe to my newsletter: http://bit.ly/JoinCCNewsletter Donate!: http://bit.ly/DonateCTVM2. ~~~~~~~~~~~~~~~Additional Links~~~~~~~~~~~~~~~ More content: http://CalebCurry.com Facebook: http://www.facebook.com/CalebTheVideoMaker Google+: https://plus.google.com/+CalebTheVideoMaker2 Twitter: http://twitter.com/calebCurry Amazing Web Hosting - http://bit.ly/ccbluehost (The best web hosting for a cheap price!)
Views: 24821 Caleb Curry
Oracle Sql : Exists Clause
 
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Topic : Exists Clause 19th Video of this Series Comments/Suggestions are welcome get in touch with us, by mailing [email protected] for Upcoming trainings. This is an Unedited Video from the Live sessions on Sql (RDBMS) I will be posting a complete series of these tutorials on this channel, If you would like to be notified every time i post something ; Please subscribe to this channel and press the bell icon.
Views: 69 CodeSmith 001
Check Last Modified DateTime for An Object (Table,Stored Procedure,Trigger etc.) in SQL Server
 
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We as SQL Server developers send our DDL Scripts ( Add New Column, Drop some column from table, or Alter Stored Procedure) to DBA. After deployment we verify those changes and sometime it happens that the changes are not done. Maybe DBA has missed one of the script to run. If we can get the last modified date for object ( Table,Stored Procedure, View etc) that can confirm the changes are done on given date. blog post link for scripts used in this video http://sqlage.blogspot.com/2014/01/tsql-how-to-check-when-object-table.html
Views: 8185 TechBrothersIT
CASE STATEMENT(IF THEN ELSE) IN ORACLE SQL WITH EXAMPLE
 
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The case statement gives the if-then-else kind of conditional ability to the otherwise static sql select statement, This video demonstrates how to write an case statement in oracle sql, and explains different aspects of the case statement. The video explains the execution flow of the case statement and advises on the best way to write one.
Views: 2718 Kishan Mashru
SQL Tutorial - 13: Inserting Data Into a Table From Another Table
 
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In this tutorial we'll learn to use the INSERT Query to copy data from one table into another.
Views: 270367 The Bad Tutorials
Read from (SELECT) Database table - SQLite3 with Python 3 part 3
 
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In the previous tutorials, we've covered creating a database and populating one, now we need to learn how to read from the database. Reading from a database is where the power of using something like SQLite over a flat file starts to make sense. While we can query the entire table, we can instead just query a single column, or even based on specific row values. Let's see what I mean sample code and text tutorial: https://pythonprogramming.net/sqlite-part-3-reading-database-python/ Playlist: https://www.youtube.com/playlist?list=PLQVvvaa0QuDezJh0sC5CqXLKZTSKU1YNo https://pythonprogramming.net https://twitter.com/sentdex https://www.facebook.com/pythonprogramming.net/ https://plus.google.com/+sentdex
Views: 91893 sentdex
How to Find out the Table & Columns in ORACLE APPS R12 | Class 2
 
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This video shows you how to find which table and column used in the form of oracle apps r12
EASY PHP ERROR | SQL (1146): Table 'performance_schema.session_status' doesn't exist
 
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Code: mysql_upgrade -u root -p --force
Views: 12274 Binary
Check if value exists in the database asp.net c#
 
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In this video tutorial i will give a example of data which is either available or not. Whole process is done through SqlDataReader class. Also available in: -- How to use SqlDataReader class. --How to check data in the database table --How to check availability of data in the database table --How to read particular column from data reader
Views: 20019 ASPNET WEBFORM
Java MySQL Database Tutorial - 9 - How To Check Whether a Value Exists or Not In a Table - Hindi
 
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Java MySQL Database Tutorial In Hindi Language Netbeans IDE Website Link: https://netbeans.org/downloads/ MySQL Connector JAR File Website : https://dev.mysql.com/downloads/connector/j/3.1.html XAMPP Website Link: https://www.apachefriends.org/index.html Java JDK 8 Website Link : http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html How To Download Netbeans IDE Video : https://www.youtube.com/watch?v=fu7rAlfLp4I How To Download XAMPP Video : https://www.youtube.com/watch?v=5TbPMlIJxrI MySQL Tutorial : https://www.youtube.com/playlist?list=PLNHw_0qv1zy8-nAi3qt8ppHvsFhJfMHqQ Java Tutorial : https://www.youtube.com/playlist?list=PLNHw_0qv1zy8WZ0kVZOsfPhpfLnTXQHX7 Java Swing GUI Tutorial : https://www.youtube.com/playlist?list=PLNHw_0qv1zy-cVdEX6HqJX2a8ZLHbG3Ox
Views: 660 Ganguly Tech
Oracle SQL Tutorial 16 - Parent Child Relationships
 
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So far in this series we have discussed database design, creating tables, and constraints. We've brought up the concept of foreign keys, but we have not explained how to create them. That is the goal of this video and the upcoming videos. We want to study those foreign keys! Let's make them not so foreign. Let's learn the proper way to define a foreign key. As a reminder, a foreign key is a column that references a column of another table. The column it references must either be a primary key, or have the UNIQUE constraint. This means that every value inside of the column that is labeled as a foreign key, there must be that value in some row of the referenced column. As an example, imagine that we have the users table, and we have a table service_requests. We could have a column in the service_request that references a column in the users table. Usually this would be the primary key that is referenced, but there is nothing stopping you from referencing a unique column. Just for fun, let's go through an example using the username column. If we have a service_requests table, every single row within the table is going to be what some would consider an instance of a service_request. This means that the table columns are like the blueprint for what a service request looks like and then each row is an individual service request. If we have one of the columns labeled as a foreign key to the username of the users table, what does that mean practically? It means that for a single row, the value for that column must be a value that exists in the users table. We could have a service_request submitted by a user with the username of Yoloswagman. This means that there must be a row inside of the users table that has the value Yoloswagman for the username column. This brings up the concept of parent and child relationships. Yoloswagman in this situation is the parent, and his service request is the child. When we draw it out, it makes sense why a primary key must be UNIQUE. If we had two Yoloswagmans, the child would not know which column is the parent. The same applies if we were using IDs and we had So remember, always reference a primary key or a column with the UNIQUE constraint. Now, I have a question for you. Do foreign keys automatically have the UNIQUE constraint, just like primary keys? The answer is no. A parent row can have many child rows. It makes sense because the user could submit multiple service requests. Can we force the column to be unique? Absolutely. If that was the case, the user could only make one service request. Another question. Do foreign keys automatically have the NOT NULL constraint, just like primary keys? The answer is no. Essentially what this means is that a child could be created with no parent. Can we force the column to be NOT NULL? Absolutely. It is ok in some situations to allow the row to be null, but in this situation it makes no sense. It would be wise for us to add that constraint ourselves. So now that you understand some more differences between primary and foreign keys and parent child relationships, take all of these questions into consideration when you are creating foreign keys. In the next video, we are going to start a small project that is going to require multiple tables. We'll take a video to design our structure and then we'll get to creating those foreign keys in Oracle SQL Developer. Stick around and if you like these videos please be a serious supporter and subscribe to my channel. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ HELP ME! http://www.patreon.com/calebcurry Subscribe to my newsletter: http://bit.ly/JoinCCNewsletter Donate!: http://bit.ly/DonateCTVM2. ~~~~~~~~~~~~~~~Additional Links~~~~~~~~~~~~~~~ More content: http://CalebCurry.com Facebook: http://www.facebook.com/CalebTheVideoMaker Google+: https://plus.google.com/+CalebTheVideoMaker2 Twitter: http://twitter.com/calebCurry Amazing Web Hosting - http://bit.ly/ccbluehost (The best web hosting for a cheap price!)
Views: 14882 Caleb Curry
How To Check Username Already Exist In Database In Asp.Net MVC | Jquery,Ajax
 
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Follow me: https://www.facebook.com/rezakarim20 Blog Post Link → http://abctutorial.com/Post/27/how-to-check-username-already-exist-in-database-in-aspnet-mvc-%7C-jqueryajax "Check Username Availability Using Jquery In MVC" ====================================================== In This Video Tutorial I Am Going To Show You, How to Check Username Availability In database That Means Username Already Exist In Database Or Not. I Hope This Is A Nice Tutorial For You And You Enjoy This Video , So Must Watch This Video ✪ ✪ ✪ https://youtu.be/SH4He-Vee5g Working Process : 00:11 Show Expected Output 00:27 Step 1 : : Click On Visual Studio Create A New Project 00:58 Step 2 : : Connect Database table 02:22 Step 3 : : Create A Controller (Write Code For Check Database Data) 06:20 Step 4 : : Create A View(Write Code For View And Pass The Inputed data From View To Controller ) 12:30 Run Project Connect With Us: Facebook: https://www.facebook.com/abctutorialbd Twitter: https://twitter.com/abctutorialbd?lan... GooglePlaus: https://plus.google.com/u/0/102073812... Subscribe And Watch The Video Again: https://youtu.be/SH4He-Vee5g Tags: Remote, validation, asp.net, mvc, RemoteAttribute, mvc3, mvc4,user already available, registration page, gmail, signup, asp.net user exist, asp.net check username availability,jquery ajax tutorial, jquery ajax tutorial for beginners, jquery ajax username availability checker, check if username is taken, check if username is available, check if username is available ajax, check if username is taken ajax, check if username exists in database asp.net, check if username exists in database c#, jquery tutorial, jquery tutorial for beginners,
Views: 12999 abctutorial
How to Resolve Oracle SQL Parent Key Not Found (ORA-02291)
 
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In this video, we’ll explain what the ORA-02291 “parent key not found” error is, see an example, and look at how to resolve it. This error usually happens when we try to insert data into a table. It looks like this: Error is: ORA-02291: integrity constraint (constraint_name) violated - parent key not found So what does this error mean? It means we’re trying to insert data into a child table, and there is no related record in the parent table. If a foreign key has been set up to enforce this relationship, there needs to be a parent to insert a child that refers to it. Watch the video to see an example of this error as well as how to resolve it. For more information on Oracle SQL, refer to the Database Star website here: https://www.databasestar.com/
Views: 4885 Database Star
Creating a database, table, and inserting - SQLite3 with Python 3 part 1
 
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Welcome to an SQLite mini-series! SQLite, as the name suggests, is a lite version of an SQL database. SQLite3 comes as a part of the Python 3 standard library. Databases offer, typically, a superior method of high-volume data input and output over a typical file such as a text file. SQLite is a "light" version that works based on SQL syntax. SQL is a programming language in itself, but is a very popular database language. Many websites use MySQL, for example. SQLite truly shines because it is extremely lightweight. Setting up an SQLite database is nearly instant, there is no server to set up, no users to define, and no permissions to concern yourself with. For this reason, it is often used as a developmental and protyping database, but it can and is used in production. The main issue with SQLite is that it winds up being much like any other flat-file, so high volume input/output, especially with simultaneous queries, can be problematic and slow. You may then ask, what really is the difference between a typical file and sqlite. First, SQLite will let you structure your data as a database, which can easily be queried, so you get that functionality both with adding new content and calling upon it later. Each table would likely need its own file if you were doing plain files, and SQLite is all in one. SQLite is also going to be buffering your data. A flat file will require a full load before you can start querying the full dataset, SQLite files don't work that way. Finally, edits do not require the entire file to be re-saved, it's just that part of the file. This improves performance significantly. Alright great, let's dive into some SQLite. https://pythonprogramming.net/sql-database-python-part-1-inserting-database/ Playlist: https://www.youtube.com/playlist?list=PLQVvvaa0QuDezJh0sC5CqXLKZTSKU1YNo https://pythonprogramming.net https://twitter.com/sentdex https://www.facebook.com/pythonprogramming.net/ https://plus.google.com/+sentdex
Views: 244740 sentdex
Part 5   SQL query to find employees hired in last n months
 
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Link for all dot net and sql server video tutorial playlists http://www.youtube.com/user/kudvenkat/playlists Link for slides, code samples and text version of the video http://csharp-video-tutorials.blogspot.com/2014/05/part-5-sql-query-to-find-employees.html This question is asked is many sql server interviews. If you have used DATEDIFF() sql server function then you already know the answer. -- Replace N with number of months Select * FROM Employees Where DATEDIFF(MONTH, HireDate, GETDATE()) Between 1 and N
Views: 187126 kudvenkat
Sql - Insert if not exists query
 
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sql insert if not exists In many cases we need to insert a row by checking whether it is already available or not. First we need to find a row is present or not. then if it is present, we skip the insert process. If the row is not present, then we insert the row. This query will help to insert rows only if not present. You can use this query directly in your application, where you need to check the presence before insert. The syntax is : merge into tblname i using (select ‘val1' as a1,‘val2' as a2,‘Val3' as a3, …. , ‘valN' as an) d on i.attribute1=d.a1 when not matched then insert (Attribute1,Attribute2,Attribute3, …. , AttributeN) values (d.a1,d.a2,d.a3,…,d.an); The example is merge into items i using (select '7' as itemid,'puri' as itemname,'25' as itemcost) d on d.itemid=i.itemid when not matched then insert (itemid,name,price) values (d.itemid,d.itemname,d.itemcost); Like us on FB https://www.facebook.com/Eddy5SmartSolutions/?fref=ts Subscribe Our Channel https://www.youtube.com/channel/UCtUgeNnytvnb51p25pcz58g
How To Install MySQL on Windows 10
 
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In this post we will learn how to How To Install MySQL on Windows 10. The same procedure can be used for installing MySQL on Windows 8 / Windows 7. But first let's see What is MySQL . MySQL is a very popular, open source database. Officially pronounced “my Ess Que Ell” (not my sequel). Handles very large databases; very fast performance. Why are we using MySQL? Free (much cheaper than Oracle!) Each student can install MySQL locally. Easy to use Shell for creating tables, querying tables, etc.Easy to use with Java JDBC. While installing MySQL, it will prompt you to create a root password . At this stage please select a safe and secure password . Make sure you remember the password, to use it later.MySQL tutorial for beginners and professionals with examples on CRUD, insert statement, select statement, update statement, delete statement, use database, keys, joins etc. -------------------Online Courses to learn---------------------------- Data Analytics with R Certification Training- http://bit.ly/2rSKHNP DevOps Certification Training - http://bit.ly/2T5P6bQ AWS Architect Certification Training - http://bit.ly/2PRHDeF Python Certification Training for Data Science - http://bit.ly/2BB3PV8 Java, J2EE & SOA Certification Training - http://bit.ly/2EKbwMK AI & Deep Learning with TensorFlow - http://bit.ly/2AeIHUR Big Data Hadoop Certification Training- http://bit.ly/2ReOl31 AWS Architect Certification Training - http://bit.ly/2EJhXjk Selenium Certification Training - http://bit.ly/2BFrfZs Tableau Training & Certification - http://bit.ly/2rODzSK Linux Administration Certification Training-http://bit.ly/2Gy9GQH ----------------------Follow--------------------------------------------- My Website - http://www.codebind.com My Blog - https://goo.gl/Nd2pFn My Facebook Page - https://goo.gl/eLp2cQ Google+ - https://goo.gl/lvC5FX Twitter - https://twitter.com/ProgrammingKnow Pinterest - https://goo.gl/kCInUp Text Case Converter - https://goo.gl/pVpcwL ------------------Facebook Links ---------------------------------------- http://fb.me/ProgrammingKnowledgeLearning/ http://fb.me/AndroidTutorialsForBeginners http://fb.me/Programmingknowledge http://fb.me/CppProgrammingLanguage http://fb.me/JavaTutorialsAndCode http://fb.me/SQLiteTutorial http://fb.me/UbuntuLinuxTutorials http://fb.me/EasyOnlineConverter
Views: 695980 ProgrammingKnowledge
Oracle SQL Loader - How to load data from file(.csv, .dat, .txt) into table - Tutorial - 3
 
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This video is the third tutorial on Oracle SQL*Loader tutorial series created by Kishan Mashru. Oracle SQL Loader utility is used to load data from flat files like .csv files, .dat files, .txt files into Oracle database tables. In this video tutorial, we demonstrated how to load data from excel to oracle using sql loader We showed the SQL Loader control file example and loaded data from the .csv file into the database table. Check out the first video: https://youtu.be/fSV51bljrwY Check out the second video: https://youtu.be/ogidUWHHRL8 Check out the advantages of using TRUNCATE over a DELETE from the following video: Delete VS Truncate : https://youtu.be/u76wMm2byXo #KishanMashru #Oracle #SqlLoader #SqlLoaderExample #LoadCSV #LoadExcel #SQLandPLSQL #OracleSqlLoader #ETL #database
Views: 6083 Kishan Mashru
Part-11 check if record exists before insert cSharp sql
 
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check if record exists before insert cSharp sql
Views: 33525 code factory 2016
How to unlock HR sample user in Oracle Database 18c by Manish Sharma
 
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RebellionRider.com presents how to unlock sample schema/user in Oracle Database 18c by Manish Sharma. Timestamps ( 01:12 ) Step 1: Find out the container ID ( 02:10 ) How do we get to know whether we are connected to a CDB or PDB ( 04:41 ) Step 2: Find out the service name ( 05:49 ) Step 3: Create an entry in TNSNAMES.ORA ( 09:13 ) Step 4: Switch from Container DB to Pluggable DB ( 11:04 ) Step 5: Unlock the HR user ------------------------------------------------------------------------ ►►►LINKS◄◄◄ Blog: http://bit.ly/unlock-schema-in-18c Previous Tutorial ► How to Install Oracle 18c on Windows https://youtu.be/kptbJ22kfqA ►TNSNAMES.Ora file at GIT https://github.com/RebellionRider/Oracl18c/blob/master/tnsnames.ora ------------------------------------------------------------------------- ►Make sure you SUBSCRIBE and be the 1st one to see my videos! ------------------------------------------------------------------------- ►►►Find me on Social Media◄◄◄ Follow What I am up to as it happens on https://twitter.com/rebellionrider http://instagram.com/rebellionrider https://plus.google.com/+Rebellionrider http://in.linkedin.com/in/mannbhardwaj/ ___Facebook Official Page of Manish Sharma___ https://www.facebook.com/TheRebellionRider/ ___Facebook Official Page of RebellionRider.com___ https://www.facebook.com/RebellionRider.official/ You can also Email me at for E-mail address please check the About section Please please LIKE and SHARE my videos it makes me happy. Thanks for liking, commenting, sharing and watching more of our videos This is Manish from RebellionRider.com ♥ I LOVE ALL MY VIEWERS AND SUBSCRIBERS
Views: 8308 Manish Sharma
DataBase testing using Oracle DataBase in Selenium WebDriver
 
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In this video we'll see how to validate ui datatable with oracle database, validating table content, row number, column number, headers all those things against database. [Code for this in GitHub Link provided Below] Testing Webtable with database, Testing Webtable against database, How to compare two datatable, How to test webtable with database, How to fetch rownum in java from Oracle Database, How to fetch colunm in java from Oracle Database, How to fetch data in java from Oracle Database, How to fetch table contents in java from Oracle Database, How to get the exact table in java from oracle db, How to print the exact table in java from database, Getting all database table data in java, How to compare webtable with database, Linkedin : https://www.linkedin.com/in/aditya-kumar-roy-b3673368/ FaceBook: https://www.facebook.com/SpecializeAutomation/posts/ GitHub : https://github.com/Specialize-Automation/DatabaseTesting_Webtable_Validation
Views: 2096 Specialize Automation
How I find a particular column name within all tables of SQL Database.
 
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Most of the time, we have to find such a column from the whole database. For example, I have a database named Employee. I have more than one table where employee_id column is present. The solution is provided in above video.
Views: 5330 Geek Mask
MSSQL - Check if stored procedure exists
 
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Copy code from here: http://howtodomssqlcsharpexcelaccess.blogspot.ca/2015/06/mssql-check-if-stored-procedure-exists.html
Views: 314 Vis Dotnet
SSIS Tutorial Part 44- Delete Rows from a Table by using OLE DB Command Transformation
 
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In this video we will learn How to perform Delete Operation in OLE DB Command Transformation in SSIS Package. We will learn the disadvantages of using OLE DB Command Transformation for Delete Operation and what other options we have to perform Delete in SSIS Package. In this OLE DB Command Transformation Demo , we will learn How to Read data from Flat File Source in SSIS Package How to Create Table in SQL Server Database How to write Delete statement with Input Parameter for OLE DB Command Transformation How to map input Columns to OLE DB Command Transformation Parameters for Delete Operation OLE DB Command Transformation- Delete Records from a Table in SSIS Package - SSIS Tutorial Blog post link for the video with scripts http://sqlage.blogspot.com/2015/04/delete-rows-from-table-by-using-ole-db.html Check out our Full Step by Step SQL Server Integration Services(SSIS) Tutorial http://www.techbrothersit.com/2014/12/ssis-videos.html
Views: 10162 TechBrothersIT
53977020  SQL EXISTS PAST2
 
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SQL EXISTS
Views: 133 mhscom53
SQL 136 Subselect, EXISTS with Subselects
 
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Explains how EXISTS with subselects work. From http://ComputerBasedTrainingInc.com SQL Course. Learn by doing SQL commands for ANSI Standard SQL, Access, DB2, MySQL, Oracle, PostgreSQL, and SQL Server.
Views: 4884 cbtinc
Oracle Database11g tutorials 16: How to uninstall oracle 11g from windows 7 64 bit
 
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How To Properly Uninstall oracle database 11g from windows 7 and 8 manually without formatting your Computer By Manish Sharma Rebellion Rider Blog Link http://bit.ly/uninstall-oracle-11g-from-win-7 Website: www.RebellionRider.com Manual Un-Installation of Oracle Database 11g. This video will show you proper process on uninstalling Oracle database 11g from windows 7 64 bit. How to uninstall oracle 11g on windows 7 / How to uninstall oracle 10g on windows 7 Read How to uninstall oracle 11g on windows http://www.rebellionrider.com/how-to-uninstall-oracle-database-11g-from-windows-7.html YouTube Video on How to create database http://bit.ly/create-database-using-DBCA Tool used in this tutorial is command prompt. This tutorial series is part of SQL expert exam certification training. if you are preparing for SQL certification you can use my tutorials. This SQL Tutorial is a part of free training. Copy Cloud referral link || Use this link to join copy cloud and get 20GB of free storage https://copy.com?r=j7eYO7 Contacts E-Mail [email protected] Twitter https://twitter.com/rebellionrider Instagram http://instagram.com/rebellionrider Facebook. https://www.facebook.com/imthebhardwaj Linkedin. http://in.linkedin.com/in/mannbhardwaj/ Thanks for linking, commenting, sharing and watching more of our videos This is Manish from RebellionRider.com
Views: 266442 Manish Sharma
Oracle Database11g tutorials 14 : How to CREATE TABLE using sql developer and command prompt
 
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Oracle Database11g tutorials 14 How to Create table using command prompt and Create table using sql developer Blog Link http://bit.ly/1TkY4Oe Time Line 0:25 Introduction of Tables in Database 1:03 What is Create Table (Introduction of create table) 1:30 Syntax of Create Table 2:08 How to create table using Command Prompt 4:55 How to create table using SQL Developer Links for Oracle Database tutorials 4: database connectivity using SQL developer and command prompt http://youtu.be/wSqoXRlXDUU You can have indepth knowledge about SQL create table here http://www.rebellionrider.com/sql-create-table.html Tool used in this tutorial is command prompt. This tutorial series is part of SQL expert exam certification training. if you are preparing for SQL certification you can use my tutorials. This SQL Tutorial is a part of free training. Copy Cloud referral link || Use this link to join copy cloud and get 20GB of free storage https://copy.com?r=j7eYO7 Contacts E-Mail [email protected] Twitter https://twitter.com/rebellionrider Instagram http://instagram.com/rebellionrider Facebook. https://www.facebook.com/imthebhardwaj Linkedin. http://in.linkedin.com/in/mannbhardwaj/ Thanks for linking, commenting, sharing and watching more of our videos This is Manish from RebellionRider.com Today in this oracle database tutorial we will see How to CREATE A TABLE. if we have to define a table in layman language then we can say that Tables are just a collection of Rows and Columns but In RDBMS tables are database objects which help in organizing data into ROWS and COLUMNS. We can also say that SQL tables are kind of data structure which are used by database for efficient storage of data. To create a table in our database we use SQL CREATE TABLE command. SQL CREATE TABLE is a type of DATA DEFINITION LANGUAGE also known as DDL. To Create a table in your schema you will require CREATE TABLE system privilege. In our future videos we will see what are system and object privileges and how to grant them to a user. Today for this video we will be using Sample schema HR which already has all the necessary privileges. Ohk Let's see the syntax. CREATE TABLE table name ( column name1 Data-Type(size), column name2 Data-Type(size), ..... ); CREATE TABLE is an oracle reserved word or say an Oracle key word whereas There are 3 different ways of creating a table in Oracle database. Creating a table using Command Line Interface (CLI) in Oracle database For demonstrating how to create table in oracle database using CLI, I'll be using Command prompt. Thats how we create table using command prompt. you can check your table structure by DESCRIBE command for that just write DESC and your table name. Like this Another way of creating a table is by using Graphic user interface (GUI) in Oracle database To demonstrate how to create table using GUI we will use SQL developer. Lets open our SQL developer I am connected to HR schema if you do not know how to create a connection to database using SQL developer please watch my oracle database tutorial 4 that explains database connectivity using SQL developer and command prompt. Link for this video is in the description below. So lets create a table. Creating a table using SQL developer is very easy we do not have to fire any query here. Let's start First of all right click on your connection in which you want to create a table and choose schema browser. This will open a separate schema browser pane or you can expend your connection by clicking this + sign and then right click on table and choose New Table. However I prefer working with schema browser so let's skip to schema browser pane here from the first drop-down list you can choose connection name and in the second drop down list you can choose what database objects you want to work with we want to create a table thus I'll choose table and then click this arrow here and choose option for new table Ok we have created a table wizard first of all give a unique name to your table and add some column as well. For this, click the green plus button. Now we already have a column so give it some name. Also choose a datatype from the list and specify any size you can check this not null column if in case you want to make this a mandatory column you can also specify default value and constraint If you want to make this column a primary key you can click here In my future video i'll show you what are these constraints and different ways of applying them on a column in a table. for this video we will concentrate on create table only so when you are done with all your columns click ok Thats your table You can double click on your table here and can see its structure. Thats it
Views: 189541 Manish Sharma