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Oracle SQL Tutorial 9 - Intro to Queries
 
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This video is for beginners who have never worked with SQL Developer, and we are going to teach how to begin writing queries. So the queries we are going to start with are queries when we give the database an expression and it will return back some kind of value. The most common keyword you are going to need to know for Oracle is SELECT. SELECT is the command we use to get data from the database. Even though we have not really put any data in our database, we can still use the SELECT statement to get data. That's because the database is capable of doing more than just creating tables and retrieving data from tables. So our first goal is to essentially write a Hello World, which just displays the text hello world to us. A good place to start is with: SELECT 'Hello World' This would actually work for many database management systems, but when you run it you will get an error. This actually doesn't work with Oracle, it will tell us we always need the FROM keyword. To get around this, there is a magical table called DUAL. We can put anything we want to SELECT and then say FROM DUAL and it will work. SELECT 'Hello World' FROM DUAL We can also do math: SELECT 1+1 FROM DUAL And we can run even run functions: SELECT SYSTIMESTAMP FROM DUAL To put all of this together, you can grab all of this data at the same time using commas to separate different columns from our generated table: SELECT 'Hello World', 1+1, SYSTIMESTAMP FROM DUAL 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: 34059 Caleb Curry
how to run sql query in oracle 11g | version 2 |
 
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how to sql queries using oracle database
Views: 8226 Education 4u
Oracle SQL Developer: Query Builder Demo
 
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How to build queries with your mouse versus the keyboard. 2018 Update: If you'd like to see how to convert your Oracle style JOINS to ANSI style (in the FROM vs the WHERE clause) see this post https://www.thatjeffsmith.com/archive/2018/10/query-builder-on-inline-views-and-ansi-joins/
Views: 82122 Jeff Smith
How Oracle SQL Query work
 
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This video will give to understanding of SQL Parsing, Syntatic check , semantic check, spool file check, Sql Optimization, row source generation and sql execution.
Views: 21560 amit wadbude
SELECT statement Processing in an Oracle Database - DBArch  Video 7
 
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You will learn from this video how a SELECT statement is processed in an Oracle Database. You will learn about the a Parse, Execute and Fetch phases in a select statement. Our Upcoming Online Course Schedule is available in the url below https://docs.google.com/spreadsheets/d/1qKpKf32Zn_SSvbeDblv2UCjvtHIS1ad2_VXHh2m08yY/edit#gid=0 Reach us at [email protected]
Views: 38787 Ramkumar Swaminathan
How to schedule a SQL query and send the result by mail
 
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This video shows how you can use AutoSQL (https://www.autosql.net) to schedule a SQL query and send the results by mail. In the example a SQL server is used to run a query of overdue invoices. If there are any, a mail is send with an Excel attachment containing the results.
Views: 14796 AutoSQL
Tutorial#17 How Oracle SQL Query Work Internally
 
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explaining how select SQL statement executes internally in Oracle database Or In other words how select statement retrieves data from the database Or ow a SELECT statement process query in Oracle Database Or Order of Query Execution In OracleSQL, SQL Parsing, SQL Optimization, row source generation, and SQL execution. Oracle SQL Practice Question : https://drive.google.com/open?id=1_0rsCkv2grC_z9xmTyuQSTv6lcEZf1Rl In this series we cover the following topics: SQL basics, create table oracle, SQL functions, SQL queries, SQL server, SQL developer installation, Oracle database installation, SQL Statement, OCA, Data Types, Types of data types, SQL Logical Operator, SQL Function,Join- Inner Join, Outer join, right outer join, left outer join, full outer join, self-join, cross join, View, SubQuery, Set Operator. follow me on: Facebook Page: https://www.facebook.com/LrnWthr-319371861902642/?ref=bookmarks Contacts Email: [email protected] Instagram: https://www.instagram.com/lrnwthr/ Twitter: https://twitter.com/LrnWthR #SQLPracticeQuestion #equalConnectCoach #OracleSQL
Views: 705 EqualConnect Coach
How to Run SQL Query - How to run SQL Queries - Online tool
 
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How to run SQL Queries - Online tool
Oracle SQL Tutorial : Using execution plan to optimize query in oracle
 
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Oracle SQL Tutorial Oracle tutorial: Explain plan for query optimization in Oracle PLSQL Performance tuning explain plan in oracle performance tuning in oracle oracle tutorial for beginners explain plan in oracle 11g using execution plan to optimize query sql query analyzer sql query cost analysis https://techquerypond.wordpress.com This oracle tutorial show you how to use EXPLAIN PLAN in oracle. This video covers how to check cost of the query from DBMS_XPLAN.DISPLAY . You can find the cost of the query using the Using EXPLAIN PLAN FOR and based on the result you can optimize the query for faster performance. Subscribe on youtube: https://www.youtube.com/channel/UCpiyAesWNYOXSz5GPq8lbkA For more tutorial please visit #techquerypond https://twitter.com/techquerypond
Views: 16384 Tech Query Pond
Slow SQL Query? Get the Plan in Oracle SQL Developer!
 
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See how to get execution and explain plans, format and views those plans, use AutoTrace, and Real Time SQL Monitoring for your SQL queries in Oracle SQL Developer.
Views: 4390 Jeff Smith
Rewriting SQL queries for Performance in 9 minutes
 
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ENGLISH CAPTIONS AVAILABLE - SPANISH SUBTITLES - Full transcript (with some screenshots) available for a small fee at http://stores.lulu.com/konagora/. A brief example about how you can improve query performance by analyzing and rewriting queries.
Views: 74315 roughsealtd
Setup CI for Oracle with Jenkins and Red Gate
 
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This video explains how easy it is to setup continuous integration (CI) for your Oracle database with Jenkins the Deployment Suite for Oracle and Jenkins. Please visit http://www.red-gate.com/oracle-ci for further help and to view and copy the command line hooks.
Views: 8522 Redgate Videos
8. CREATE, INSERT and SELECT commands
 
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In this video you will learn how to execute CREATE, INSERT and UPDATE commands. I will show you by executing these command and you will understand it easily. We will also cover its theory part before demo. For Support =========== Email: [email protected] Contact Form: http://www.learninhindi.com/home/contact Our Social Media ================ Facebook: https://www.facebook.com/LearnInHindi Twitter: https://twitter.com/LearnInHindi For Training & Videos ===================== For more videos and articles visit: http://www.learninhindi.com Free Java Programming In Hindi Course ===================================== https://www.youtube.com/playlist?list=PLOZ3jentlCDAwwhMyoLISrxkXTADGp7PH Free Oracle PL/SQL Programming In Hindi Course ============================================== https://www.youtube.com/playlist?list=PLB5DA82419C2D99B6 Free C Programming In Hindi Course ================================== https://www.youtube.com/playlist?list=PLOZ3jentlCDAxKpBLMWogxSdy6BZcsAJq Trips & Tricks Channel ====================== https://www.youtube.com/channel/UCGmLfkuCo-3lHHJXRJ9HUMw Programming in Hindi Channel ============================ https://www.youtube.com/channel/UCudElIDgwNrybeAvXIy1HZQ
Views: 143689 ITORIAN
Run SQL Query with Date Range filter in Excel
 
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Run SQL Query with Date Range filter in Excel My SQL Blog: https://sqlwithmanoj.com/ Check my SQL FB Page at: https://www.facebook.com/sqlwithmanoj
Views: 17582 SQL with Manoj
Oracle Database tutorials 5:  how to Fetch Data using SELECT - SQL statement by Manish Sharma
 
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SELECT – SQL Statement which will help you in fetching data from your database. Learn the concepts of SELECT statement with easy examples in this SQL tutorial by Manish Sharma Contacts www.Facebook.com/TheRebellionRider www.twitter.com/rebellionrider www.instagram.com/RebellionRider in.linkedin.com/in/mannbhardwaj/ Thanks for linking, commenting, sharing and watching more of our videos This is Manish from RebellionRider
Views: 203661 Manish Sharma
Merge Statement in Oracle SQL with Example (UPDATE/DELETE or INSERT)
 
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This video demonstrates how to write a Merge Statement in oracle sql, how it is useful in doing a conditional update or delete or both of them when the condition between the target table and source table is evaluated to true, and how we can insert the record into the target table when condition is evaluated to false. The video also shows the use of UPDATE, DELETE and INSERT with Merge, and also the various possible ways to use a Merge statement!!!
Views: 10799 Kishan Mashru
Execute your first SELECT statement | Oracle SQL fundamentals
 
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Enroll into full course with free cloud access for 30 days: https://dbagenesis.com/p/oracle-sql-fundamentals/
Views: 33 DBA Genesis
Running a SQL Stored Procedure in Excel without VBA
 
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This video explains how to run a SQL Stored Procedure to get the data to excel by passing the dynamic parameters. Using this technique you can get most of the data from any of the corporate ERP databases. Here we execute the stored procedure without using VBA. For more videos visit www.Excelwithwilson.com
Views: 26974 The Data Magic
DYN7: Executing REALLY BIG Strings, Describing Columns in Query
 
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Explore how to execute arbitrarily long SQL statements and how to describe the columns of a query. This video was taken from PLSQLChannel.com, originally recorded before Steven Feuerstein re-joined Oracle in March 2014. ======================================== Practically Perfect PL/SQL with Steven Feuerstein Copyright © 2015 Oracle and/or its affiliates. Oracle is a registered trademark of Oracle and/or its affiliates. All rights reserved. Other names may be registered trademarks of their respective owners. Oracle disclaims any warranties or representations as to the accuracy or completeness of this recording, demonstration, and/or written materials (the “Materials”). The Materials are provided “as is” without any warranty of any kind, either express or implied, including without limitation warranties or merchantability, fitness for a particular purpose, and non-infringement.
Excel Magic Trick 1349: Power Query with Input Variables from Excel Sheet to Extract Records
 
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Download File: http://people.highline.edu/mgirvin/excelisfun.htm See how to use Power Query (Get & Transform) with Input Variables from Excel Sheet to Extract Records and create a Revenue Report. Here are the steps: 1. (00:15) Introduction including Preview of Finished Solution and Preview of steps necessary to accomplish this goal. 2. (02:00) Import and transform Data Set, including removing Columns, Filter For Records and adding an extra Column to calculate Net Revenue using the Number.Round Power Query Function. 3. (06:38) Load Report to Sheet 4. (07:09) Import each Parameter/Criteria Table. 5. (07:36) Convert each Criteria Table to a single Text Item using the Record.Field Power Query Function. 6. (11:38) Declare and Insert Variables into M Code for Report 7. (14:10) Test Reporting System 8. (14:30) Create Recorded Macro To Refresh All and assign it to a Form button 9. (16:40) Test Macro and Reporting System 10. (17:25) Summary
Views: 91235 ExcelIsFun
Unix tutorial : Unix Shell Script to connect Oracle database
 
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Unix tutorial : Unix Shell Script to connect Oracle database This tutorial will show you how to connect oracle database using the command line in Unix. Here Unix shell scripting is used to connect the database using the sqlplus command. And you can see how to retrieve data from database using the shell script 1)Oracle tutorial : How to connect oracle database using sqlplus command line https://www.youtube.com/watch?v=N2DAK2ty8Gc 2)Job In Oracle : pl sql create job in Oracle Scheduler https://www.youtube.com/watch?v=Nwmt5S4Mod8&t=248s You can learn useful shell scripts for oracle dba oracle scripts for dba in unix oracle dba scripts Subscribe on youtube: https://www.youtube.com/channel/UCpiyAesWNYOXSz5GPq8lbkA For more tutorial please visit #techquerypond https://techquerypond.com https://techquerypond.wordpress.com https://twitter.com/techquerypond sqlplus connect to databaseoracle database monitoring shell scripts
Views: 26671 Tech Query Pond
DML Processing in an Oracle Database -  DBArch Video 8
 
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This video explains the steps involved in processing a DML statement in an Oracle Database Server. Our Upcoming Online Course Schedule is available in the url below https://docs.google.com/spreadsheets/d/1qKpKf32Zn_SSvbeDblv2UCjvtHIS1ad2_VXHh2m08yY/edit#gid=0 Reach us at [email protected]
Views: 63881 Ramkumar Swaminathan
Oracle SQL SELECT Query Execution Process
 
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Query Execution Process
Views: 1769 PNR Tech
Formatting your Oracle Query Results Directly to CSV
 
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How to get Oracle SQL Developer to automatically format your query results to CSV, HTML, JSON, Insert statements, and more.
Views: 50886 Jeff Smith
how to execute queries written in .txt file in oracle in hindi
 
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execute written sql queries in oracle.
Views: 297 yogendra patel
Pre-Query and Post-Query Triggers in Oracle Forms
 
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Pre-Query and Post-Query Triggers in Oracle Forms An Example of Pre-Query and Post-Query Triggers in Oracle Forms
Views: 6544 Oracle Developer Tutz
Connect Excel to Oracle Database
 
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How to connect an Oracle Database to Microsoft Excel. https://www.elance.com/s/edtemb/
Views: 107712 i_marketing
Oracle sql Interview Question : How to change rows to column
 
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This video tutorial talks about the frequently asked oracle sql interview question of changing rows to the column. Based on the given scenario, we are asked to change the presentation of data in a table with 3 rows and 2 column to 3 columns and 2 rows. Decode Function in oracle https://youtu.be/YUAjPMjqMws Pivot and unpivot in oracle https://youtu.be/6s0DI1YcWIM
Views: 20127 Kishan Mashru
Oracle SQL Tuning - How to Read Execution Plans (Explain Plan)
 
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In this free tutorial you will learn how to generate and read (interpret) an execution plan in Oracle Databases. See more FREE Oracle Tuning tutorials at http://skillbuilders.com/free-oracle-tutorials. Understanding what the Oracle Database does with your SQL is essential to tuning - and the execution plan is the key. Oracle Certified Master DBA John Watson will provide a brief introduction (4 minutes) - which includes John's tuning methodology, then demonstrate EXPLAIN PLAN, SQL*Plus AUTOTRACE and DBMS_XPLAN.DISPLAY_CURSOR. In the tutorial, John will teach you: - How to read an execution plan - Find the 1st step in the plan - Decipher the order of the steps in the plan - That EXPLAIN PLAN can be very misleading Prerequisites: To get the most from this tutorial, you should: 1 Know how to code SQL 2 Be familiar with SQL*Plus 3 Know - in very general terms - what an execution plan is. 4 Have a basic understanding of the Library Cache (this is where Oracle Database stores parsed SQL statements) 5 Have a basic understanding of the Cost Based Optimizer (this is the part of the database that parses your SQL, creates an execution plan. Hopefully the correct - most efficient - plan).
Views: 68664 SkillBuilders
PL/SQL tutorial 76: Introduction to FORALL statement in Oracle Database
 
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RebellionRider.com presents Introduction to bulk Data processing using FORALL statement in Oracle Database by Manish Sharma ------------------------------------------------------------------------ ►►►LINKS◄◄◄ Blog: http://bit.ly/forall-01 Previous Tutorial ► PL/SQL Bulk Collect with LIMIT clause ►SQL Error ORA-00942 Table or View Does Not Exist in Oracle Database http://bit.ly/ora-00942 ------------------------------------------------------------------------- ►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: 8500 Manish Sharma
Creating and Executing Oracle Stored PL SQL Procedure Simple Select Statement with Parameter
 
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www.ReportingGuru.com - This video discusses how to create and run / execute a simple Oracle stored procedure in PL SQL. It returns the results of a simple SELECT statement and has one parameter that is passed in. Email us at [email protected] if you need reporting help, custom reports, or reporting architecture setup. Our phone number is 1-(800) 921-4759.
Views: 24 Reporting Guru
Execute Query using non-select Query | Create Table in Oracle Database using JDBC program  part-4
 
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Hi in this video we will learn how to create a table in the database using jdbc program.Executing non-select query. Procedure to develop a JDBC program 1.Registering a Driver with the DriverManager. 2.Establishing a connection with the Database server. 3.Creating a statement object by using the Established connection. 4.Executing the queries by the Statement object. 5.closing the connection.
Views: 41 RAJASEKHAR REDDY
Query Tuning 101 How to Run Autotrace in SQL Developer
 
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This video shows how to run autotrace reports using Oracle SQL Developer to analyze query performance. It also discusses the privileges you need to enable database users to run autotrace. ============================ The Magic of SQL with Chris Saxon Copyright © 2015 Oracle and/or its affiliates. Oracle is a registered trademark of Oracle and/or its affiliates. All rights reserved. Other names may be registered trademarks of their respective owners. Oracle disclaims any warranties or representations as to the accuracy or completeness of this recording, demonstration, and/or written materials (the “Materials”). The Materials are provided “as is” without any warranty of any kind, either express or implied, including without limitation warranties or merchantability, fitness for a particular purpose, and non-infringement.
Views: 20939 The Magic of SQL
Type and Run a SQL Query inside PowerApps
 
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Update: be sure to scroll through the schema of your Response so that it does not have null values or the flow will not be accepted into PowerApps: https://powerusers.microsoft.com/t5/General-Discussion/Error-on-adding-a-flow-run-SQL-query-to-powerapps/m-p/119226#M42206 Here's a second way to return an array into PowerApps--arguably easier. Like the Split() method, "Request - Response" does not require any custom connectors. You can use this to type and run SQL queries from inside a PowerApp--your formulas are flexible this way! Follow me on Twitter: @8bitclassroom Read my blog: https://8bitclassroom.com/ Find me on Facebook: https://www.facebook.com/8bitclassroom/ Subscribe to this channel :)
Views: 9466 Mr. Dang
Working with PL-SQL in Oracle SQL Developer v4.0
 
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How to navigate your PL-SQL, a few options to consider, and working with execution results of your programs in Oracle SQL Developer version 4.0.
Views: 31173 Jeff Smith
Oracle Database 11g XE (Express Edition) Install guide and connect with SQL Developer
 
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Welcome to MyOnlineEdu.com's video tutorial. In this video you will learn how to install Oracle Database 11g XE (Express Edition) and then connect the database using Oracle SQL Developer IDE tool. You can avail an instructor based live class from MyOnlineEdu.com. To enroll click the lick: https://www.myonlineedu.com/course/view/6/oracle-sql-and-plsql-11g-fundamentals
Views: 384061 MyOnlineEdu.com
PL/SQL tutorial 73: Bulk Collect with SELECT-INTO statement in Oracle Database
 
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RebellionRider.com presents a PL/SQL tutorial on how to use the BULK COLLECT clause with SELECT INTO statement in Oracle Database by Manish Sharma. In this tutorial, you will also learn how to overcome the overhead caused by context switch and improve the query performance. ------------------------------------------------------------------------ ►►►LINKS◄◄◄ Blog: http://bit.ly/bulk-collect-2 Previous Tutorial ►Introduction to Bulk Collect: https://youtu.be/CrJSlf_m3yA ►PL/SQL Tutorial 51-Nested Table: https://youtu.be/EUYyiFCzU0I ►Collection Method Count:https://youtu.be/NNq80CcC5K8 ------------------------------------------------------------------------- ►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: 14295 Manish Sharma
Oracle SQL Tutorial : How to connect oracle database using sqlplus command line
 
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Oracle tutorial: How to connect oracle database using sqlplus command line sqlplus tools to connect to oracle database In this tutorial you can see using SQLPLUS commands how we can connect the oracle database . After connecting the oracle database you can able execute the sql query. oracleconnection oracle sqlplus connect to database Oracle SQL Tutorial
Views: 22058 Tech Query Pond
SQL Tutorial - 9: Create Table Statement
 
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In this tutorial we'll learn to create tables in SQL using the CREATE TABLE Statement.
Views: 372956 The Bad Tutorials
How to debug Oracle Procedure | Package using Oracle SQL Developer
 
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This video will teach you the simple way to debug your Oracle Procedure | Package with Oracle SQL Developer..
Views: 14813 Oracle PL/SQL World
SQL with Oracle 10g XE - Getting Started
 
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In this video I take a look at getting the Oracle 10g Express Edition Database and installing it on a Windows operating system. This is the first video in a series of videos with the purpose of learning the SQL language. The Express Edition of Oracle is a free database to use and will allow you to run the SQL commands form an web based interface. The user account to use when you first setup the database is the SYSTEM user name. For more information visit Lecture Snippets at http://lecturesnippets.com
Views: 118981 Lecture Snippets
How to connect Excel to Oracle with VBA
 
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This video will show you how can you connect to a Oracle database and read data into your Excel sheet using VBA programming. Source Code: https://github.com/woolfool/ExcelConnectToOracle
Views: 33146 WoolFool
DDL statement processing in an Oracle Database - DBArch Video 9
 
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In this video you learn about what happens when you run a DDL ( data definition language) command in the Oracle Database. Our Upcoming Online Course Schedule is available in the url below https://docs.google.com/spreadsheets/d/1qKpKf32Zn_SSvbeDblv2UCjvtHIS1ad2_VXHh2m08yY/edit#gid=0 Reach us at [email protected]
Views: 18024 Ramkumar Swaminathan
Dynamic sql table name variable
 
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Text version of the video http://csharp-video-tutorials.blogspot.com/2017/04/dynamic-sql-table-name-variable.html Slides http://csharp-video-tutorials.blogspot.com/2017/04/dynamic-sql-table-name-variable_20.html All SQL Server Text Articles http://csharp-video-tutorials.blogspot.com/p/free-sql-server-video-tutorials-for.html All SQL Server Slides http://csharp-video-tutorials.blogspot.com/p/sql-server.html All SQL Server Tutorial Videos https://www.youtube.com/playlist?list=PL08903FB7ACA1C2FB All Dot Net and SQL Server Tutorials in English https://www.youtube.com/user/kudvenkat/playlists?view=1&sort=dd All Dot Net and SQL Server Tutorials in Arabic https://www.youtube.com/c/KudvenkatArabic/playlists In this video we will discuss how to pass table name dynamically for stored procedure in sql server. This is one of the sql questions that is very commonly asked. I have a web page with a textbox. When I enter a table name in the textbox and when I click "Load Data" button, we want to retrieve data from that respective table and display it on the page. Copy the SQL Script to create the tables from my blog using the link below http://csharp-video-tutorials.blogspot.com/2017/04/dynamic-sql-table-name-variable.html Create the following stored procedure. Notice we are passing table name as a parameter to the stored prcoedure. In the body of the stored procedure we are concatenating strings to build our dynamic sql statement. In our previous videos we discussed that this open doors for SQL injection. Create procedure spDynamicTableName @TableName nvarchar(100) As Begin Declare @sql nvarchar(max) Set @sql = 'Select * from ' + @TableName Execute sp_executesql @sql End So the obvious question that comes to our mind is, why are we not creating parameterised sql statement instead. The answers is we can't. SQL Server does not allow table names and column names to be passed as parameters. Notice in the example below, we are creating a parameterised query with @TabName as a parameter. When we execute the following code, the procedure gets created successfully. Create procedure spDynamicTableName1 @TableName nvarchar(100) As Begin Declare @sql nvarchar(max) Set @sql = 'Select * from @TabName' Execute sp_executesql @sql, N'@TabName nvarchar(100)', @TabName = @TableName End But when we try to execute it we get an error - Must declare the table variable "@TabName" Execute spDynamicTableName1 N'Countries' Add a Web Page to the project that we have been working with in our previous video. Name it "DynamicTableName.aspx". Copy and paste the HTML from my blog using the link below http://csharp-video-tutorials.blogspot.com/2017/04/dynamic-sql-table-name-variable.html Copy and paste the code from my blog in the code-behind page http://csharp-video-tutorials.blogspot.com/2017/04/dynamic-sql-table-name-variable.html At this point, run the application and type the following text in the "Table Name" textbox and click "Load Data" button. Notice "SalesDB" database is dropped. Our application is prone to SQL injection as we have implemented dynamic sql in our stored procedure by concatenating strings instead of using parameters. Employees; Drop database SalesDB One way to prevent SQL injection in this case is by using SQL Server built-in function - QUOTENAME(). We will discuss QUOTENAME() function in detail in our next video. For now understand that by default, this function wraps that string that is passed to it in a pair of brackets. SELECT QUOTENAME('Employees') returns [Employees] Modify the stored procedure to use QUOTENAME() function as shown below. Alter procedure spDynamicTableName @TableName nvarchar(100) As Begin Declare @sql nvarchar(max) Set @sql = 'Select * from ' + QUOTENAME(@TableName) Execute sp_executesql @sql End At this point, type the following text in the "Table Name" textbox and click "Load Data" button. Notice you will see a message - Invalid object name 'Employees; Drop database SalesDB'. Also "SalesDB" database is not dropped. Employees; Drop database SalesDB The entire text in "Table Name" textbox is wrapped in a pair of brackets by the QUOTENAME function and is treated as table name. Since we do have a table with the specified name, we get the error - Invalid object name.
Views: 31432 kudvenkat
Best Way to Write Basic SQL Queries
 
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SQL Server Query writing strategies is something I have yet to find in any book. When enthusiastic SQL students do this, they experience a revelation. The number of errors drops significantly and the speed at writing complex queries increases immediately. Knowing how to narrow down what we are looking for amongst a vast list of choices helps immensely. Grabbing the right tables first and then the fields second is akin to grabbing the right menu before ordering an item from it. In fact, one student named Tim took this back to his team of SQL developers and they immediately implemented this process. We are all used to following steps. Most of the time, actions are sequential from top to bottom or left to right. Other times we complete things in phases. The two phases we are going to use in this exercise apply to joining tables. This is easy to implement as we only need remember to organize first and clean up second. When visiting a new restaurant, we will ask to see the menu, because we want to see all they have to offer. The odds are that we might be interested in half of the items, but only need a few dishes for our group at the table. Looking at the menu is like starting a query with a ‘SELECT *’ statement. Once we have looked at all the fields, we narrow our choice(s) to only the items we want at the time. Sometimes restaurants have multiple menus. My favorite restaurant has a kids’ menu, an adult menu, a gluten-free menu and a drink menu. These menus were each gathered at our table. Ultimately, in my head, a selection was narrowed to what was needed. Phase I: Organize. When building a new query from many tables, we often find ourselves wondering, “Where do I start?” First, lay the steps out by identifying which tables contain the essential data. Second, get all the table joins working with a basic ‘SELECT *’ statement. Third, add any basic filtering criteria. Phase II: Itemize. Once all joins and criteria, such as SELECT, FROM and WHERE are working, we are ready for Phase II. This entails going back and changing our ‘SELECT *’ to an itemized SELECT field list as the final step. Let’s explore how this two-phase process of Organize and then Itemize can be a big time-saver. We are going to use one of the challenges from the last lab. In Lab 3.2 (Outer Joins), Skill Check 2, we needed to get four fields from two different tables. If we were to list all four desired fields and test one table at time, we will get an error as seen on the right side of the figure below. In the figure below we write a SELECT statement and part of the FROM clause. When completed, the FROM clause will have two tables, but for now we just want to get the Location table working. By using the ‘SELECT *’ strategy, we remove any possible errors from line 1. From there, we can focus on the more complicated logic used for joining tables together. We can add tables one at a time until everything is working. This is the Organize phase. NOTE: SELECT * never results in an Error message stating “invalid column name”, however; a SELECT list with itemized field(s) can have this error. After our query is organized and working, we can go back and itemize the SELECT field list to display only the fields that are necessary. This is done during Phase II (Itemize). The steps for this system are broken down as follows: Since SELECT is always the first statement in a query, it’s natural to want to write the field names before writing the FROM clause. However; we can save time and trouble by using the ‘*’ until the entire query is working properly. When this is complete, it is very easy to itemize the field list, with the confidence of knowing it will not cause any problems. Exercise: Simple membership for a club: Table1 (id_Member,name_Member, email_member, title, age, company) Table2 (id_Club,club_name, club_Location, address) Table3 (id_club, id_member,membership_date) Q1: Show all member names, email, age, and company from Table1 Q2: Show all club name, location, and address data Q3: Show member name, club name, club location (hint: Use joins and all 3 tables) You can find all other classes related to this video here: http://www.joes2pros.com/joes2pros/Course/Introduction_To_Microsoft_SQL_Server Enroll Today & Get the First Month for only $1! Use code: YOUTUBE1
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DYN4: Method 3 dynamic SQL - queries w/fixed # of columns & bind variables (PL/SQL Channel)
 
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This video shows how to implement method 3 dynamic SQL (queries with fixed number of columns and bind variables) with EXECUTE IMMEDIATE. It was taken from PLSQLChannel.com, originally recorded before Steven Feuerstein re-joined Oracle in March 2014. ======================================== Practically Perfect PL/SQL with Steven Feuerstein Copyright © 2015 Oracle and/or its affiliates. Oracle is a registered trademark of Oracle and/or its affiliates. All rights reserved. Other names may be registered trademarks of their respective owners. Oracle disclaims any warranties or representations as to the accuracy or completeness of this recording, demonstration, and/or written materials (the “Materials”). The Materials are provided “as is” without any warranty of any kind, either express or implied, including without limitation warranties or merchantability, fitness for a particular purpose, and non-infringement.
Install and configure Sql Developer on Windows | Oracle Tutorial
 
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How to Install SQL Developer on Windows 1) Download for the below link http://www.oracle.com/technetwork/developer-tools/sql-developer/downloads/index.html 2) Make sure you have Java Development Kit installed with latest version. http://www.oracle.com/technetwork/java/javase/downloads/index.html 3) Install SQL developer as rpm -ihv sqldeveloper-xxx.noarch.rpm (replace xxx with exact version of your SQL developer) Run SQL developer on linux command prompt as $ sqldeveloper 4) Create a new connection to connect to user Technology Lair : www.technologylair.org Subscribe : http://www.youtube.com/subscription_center?add_user=technologylair For More Videos : http://www.youtube.com/user/technologylair/videos For Video Tutorials :http://www.youtube.com/playlist?list=PLC71CFFF7A916DCAA For Android : http://www.youtube.com/playlist?list=PLUXK1VpPWQKHI1l-NvM5jvNKKnmNy9eHp For Linux : https://www.youtube.com/playlist?list=PLUXK1VpPWQKHV2xOmjQgUNj3Hrmcslj-H Kalam e Iqbal : http://www.youtube.com/playlist?list=PLF057785BD260F061 Like us on Facebook : https://www.facebook.com/technologylair Tweet us : http://twitter.com/technologylair Follow us : https://plus.google.com/u/0/118196883367288585963/posts Pin us : http://www.pinterest.com/technologylair/
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SQL in Oracle 11g Tutorial #19: Query to Display 1st, 2nd of Nth Highest Salary of an Employee
 
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#sqlquery #firsthighestsalary #nthhighestsalary SQL in Oracle 11g Tutorial #19: Query to Display 1st, 2nd of Nth Highest Salary of an Employee........ Thanks for Watching my Channel “Learn TechToTech”. Please subscribe my channel for getting first updates after uploading video.Social Media pages of Channel are: 1. My Website : www.learnfromrakesh.com 2. My Twitter: https://twitter.com/LearnTechtotech 3. Facebook Page: https://www.facebook.com/LearnTechToTech 4. Blogger : https://learntechtotech.blogspot.in/ 5. Google+ : https://learntechtotech.blogspot.in/ 6. Pinterest : https://in.pinterest.com/LearnTechToTech/ 7. LinkedIn: https://www.linkedin.com/in/Learntechtotech/ Playlist of Different Technology: 1. MCA Entrance Preparation: https://goo.gl/g7117X 2. Placement and Interview Tips : https://goo.gl/4vMdNS 3. MCA Entrance Notification : https://goo.gl/x1Zhxf 4. Operating System : https://goo.gl/q6SfrW 5. Python Programming Language : https://goo.gl/L8b5dc 6. C Language : https://goo.gl/SwvDu9 7. C language for Placement: https://goo.gl/AaQBa4 8. Java: https://goo.gl/M8F2uy 9. MySql : https://goo.gl/vdJbHQ 10. Android Mobile Application Development: https://goo.gl/M6woaT 11. Kotlin Programming Language : https://goo.gl/GXE5cd 12. Go Programming: https://goo.gl/Ua3xYW 13. Internet of Things(IoT): https://goo.gl/f2afkY 14. Oracle 11g : https://goo.gl/zds8r2 15. C++ : https://goo.gl/C1psMT 16. R Programming: https://goo.gl/6pDrsb
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