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NULL Value in Oracle Database | Oracle Tutorials for Beginners
 
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NULL Value in Oracle Database | Oracle Tutorials for Beginners NULL Value in Oracle Database NULL Value in Oracle SQL NULL Value in SQL NULL Value in Oracle Database Oracle Tutorials for Beginners Oracle Tutorials for Beginners Oracle PL/SQL Tutorials for Beginners Oracle PL/SQL Tutorials for Beginners Oracle PL/SQL Tutorials for Beginners how to select null values in oracle oracle compare null values in where clause null=null in oracle how to handle null in case statement in oracle how to check null value in oracle stored procedure oracle nvl null value in oracle query how to check empty column value in oracle how to select null values in oracle oracle is null vs = null oracle nvl oracle is not null oracle decode oracle isnull oracle case when null select null from table in oracle oracle compare null values in where clause oracle select null how to check empty column value in oracle oracle sql not null or empty oracle is not null how to handle null in case statement in oracle oracle isnull oracle nvl
Views: 393 Oracle PL/SQL World
ORDER BY Clause in Oracle | Oracle Tutorials for Beginners
 
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Oracle Tutorials for Beginners ORDER BY Clause In Oracle ORDER BY Clause in SQL Oracle Tutorials for Beginners Oracle SQL Introduction #Oracle Tutorisla for Beginners Oracle for Beginners Oracle plsql tutorial for Beginners Oracle plsql tutorial for Beginners Oracle plsql tutorial for Beginners ORDER BY in Oracle SQL ORDER BY in Oracle SQL ORDER BY in Oracle SQL NULLS FIRST in Oracle NULLS FIRST in Oracle NULLS LAST in Oracle NULLS LAST in Order by Clause how order by clause works in oracle oracle order by date oracle sort varchar2 alphabetically oracle order by case multiple columns oracle sql order by specific values order by in oracle w3schools sql order by multiple columns oracle order by column not in select order by in oracle w3schools oracle order by multiple columns oracle sql order by specific values how order by clause works in oracle oracle order by date oracle order by group by sql order by alphabetical order by sql
Views: 303 Oracle PL/SQL World
SQL for Beginners (Part 4) : The ORDER BY Clause
 
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The fourth part of a mini-series of videos showing the basics of SQL. In this episode, we take a look at how you can influence the order of the data that is returned by queries. For more information see: https://oracle-base.com/articles/misc/sql-for-beginners-the-order-by-clause Website: https://oracle-base.com Blog: https://oracle-base.com/blog Twitter: https://twitter.com/oraclebase Cameo by Nelson Calero : Blog: http://databaseindex.blogspot.com/ Twitter: https://twitter.com/ncalerouy Cameo appearances are for fun, not an endorsement of the content of this video.
Views: 713 ORACLE-BASE.com
order by clause
 
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When sorting your result set in descending order, you use the DESC attribute in your ORDER BY clause as follows: SELECT supplier_city FROM suppliers WHERE supplier_name = 'Microsoft' ORDER BY supplier_city DESC; This Oracle ORDER BY example would return all records sorted by the supplier_city field in descending order. ORDER BY clause ref/rrefsqlj13658.html An ORDER BY clause allows you to specify the order in which rows appear in the result set. In subqueries, the ORDER BY clause is meaningless unless it is ... Oracle / PLSQL: ORDER BY Clause - TechOnTheNet oracle/order_by.php When sorting your result set in descending order, you use the DESC attribute in your ORDER BY clause as follows: SELECT supplier_city FROM suppliers WHERE supplier_name = 'Microsoft' ORDER BY supplier_city DESC; This Oracle ORDER BY example would return all records sorted by the supplier_city field in descending order. Oracle ORDER BY Clause racle-order-by-clause In Oracle, ORDER BY Clause is used to sort or re-arrange the records in the result set. The ORDER BY clause is only used with SELECT statement. Syntax: SELECT expressions. SQL ORDER BY Clause beginner-sql-tutorial.com/sql-order-by-clause.htm SQL ORDER BY. The ORDER BY clause is used in a SELECT statement to sort results either in ascending or descending order. Oracle sorts query results in ascending order by default. 15 Things You Should Know about the ORDER BY Clause — Oratable acle-order-by-clause/ Sep 3, 2012 - Answers to these questions and more about Oracle's ORDER BY ... ORDER BY DESC places null values at the start of the query results. Oracle ORDER BY tips The Oracle ORDER BY clause must be used if you require that the rows be sorted. The Oracle database, by default, will not sort the results set, nor does it store ... sql - Oracle order by descending with NULL last - Stack Overflow /questions/.../oracle-order-by-descending-with-null-last Jul 14, 2013 - You can use DESC NULLS LAST to achieve that. ... order by case when web_views is not null then 1 else 2 end asc, web_views desc;. Oracle sql order by with case statement 3 answers 10 Jan 2016 oracle - Sql Order by on multiple column 3 answers 15 Dec 2012 Custom Order in Oracle SQL 6 answers 12 Nov 2012 sql - Oracle dynamic DESC and ASC in order by 5 answers 10 Feb 2011 More results fromOracle ORDER BY: Sort Data By One or More Columns in Specified ... Oracle Basics This tutorial shows you how to use the Oracle ORDER BY clause to sort rows by one or more columns in ascending or descending order. Filtering (WHERE) and Sorting Data (ORDER BY) in Oracle 9i ... Nov 5, 2004 - This chapter covers filtering of rows using the WHERE clause and sorting of retrieved data using the ORDER BY clause. The WHERE clause ... Using the SQL ORDER BY clause, SELECT QUERY for alphabetical ... ./Using-the-ORDER-BY-clause-of-the-SELECT-quer... Jul 29, 2008 - Learn how to use the ORDER BY clause of the SELECT query to sort your results in alphabetical order, and how to save your SQL SELECT ... Searches related to order by clause in oracle oracle order by multiple columns how order by clause works in oracle oracle sql order by specific values order by in oracle w3schools group by clause in oracle having clause in oracle oracle order by date order by sql
Views: 21 Muo sigma classes
SQL Tutorial 7: CONCAT function, ORDER BY, NULL value
 
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How do you concatenate or combine columns and place it on a derived column? How do you check if a column contains NULL value? How do your arrange rows or records in descending or ascending order? The video presents sample problems with solution as you work with a SELECT statement. CONCAT () function combines data among columns. It is not limited with two columns but may work with multiple columns as you combine it with another CONCAT function. Use two double-pipe symbols (||) instead if you opt not to use CONCAT function. Not all columns are filled up or has values on it in a given table. When a column contains no data even a single space, it has a NULL value. In using DB2 command line, a NULL column is represented by a single dash. When generating a SELECT statement output it has no general sorting order on its result. To specify the correct sorting order, use ORDER BY clause after FROM. Ascending is the default order when sorting a particular column. If you want to sort in descending order, use DESC. Sort order is not limited with one column. You may combine with multiple columns by specifying which column to sort first followed by the next column order to sort. CONCAT, ORDER BY, and NULL are universal in all dbms SQL products. It is the same if you use MS SQL Server, MySQl, Informix, Oracle, and DB2. Link for the ebook will be announced later.
Views: 2007 Jerry Esperanza
SQL Null or Empty   How to Check for Null or Empty Column in SQL Server   SQL Training Online
 
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http://www.sqltrainingonline.com SQL Null or Empty - How to Check for Null or Empty Column in SQL Server - SQL Training Online You can download the sample table script at http://www.sqltrainingonline.com/how-to-filter-for-sql-null-or-empty-string/. In this video, I show you how to filter for a SQL null or empty string. It can be difficult to filter a null because you can't simply compare with an equal sign. You have to use a special IS NULL clause to make the filter work. I also show you how to combine both the SQL Null and Empty String together in a special trick with the isnull SQL Server function. I use SQL Server 2012 to demonstrate the technique. Let me know what you think by commenting or sharing on twitter, facebook, google+, etc. If you enjoy the video, please give it a like, comment, or subscribe to my channel. You can visit me at any of the following: SQL Training Online: http://www.sqltrainingonline.com Twitter: http://www.twitter.com/sql_by_joey Google+: https://plus.google.com/#100925239624117719658/posts LinkedIn: http://www.linkedin.com/in/joeyblue Facebook: http://www.facebook.com/sqltrainingonline
Views: 15692 Joey Blue
Oracle DENSE_RANK Function
 
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https://www.databasestar.com/oracle-dense_rank/ The Oracle DENSE_RANK function allows you to calculate a rank of a row in a group of rows. It returns this rank as a NUMBER value. This function can be used as either an analytic or an aggregate function, and the syntax depends on how you use it. As an aggregate function it looks like this: DENSE_RANK ( expr, [expr(n)] ) WITHIN GROUP ( ORDER BY (order_expr [ASC|DESC] [NULLS FIRST|LAST] ) These parameters are: - expr: this is the value to search for in a particular table. You can specify multiple search values, and just separate them by a comma. - order_expr: this is used to order the expr values by, because you get a different results depending on what order you rank the values in. - NULLS FIRST or LAST: this is where you can specify if you want to have NULL values appear at the top of your ranking order or at the bottom. As an analytic function, it looks like this: DENSE_RANK() OVER ( [query_partition_clause] order_by_clause) The parameters are: - query_partition_clause: this is the expression that the ranking is “grouped” by, as analytic functions allow you to group data within rows. - order_by_clause: this is the expression to order your results by to determine a rank. For this function, if two records have the same sort or rank position, they will have the same RANK value. It won’t cause a gap in the rankings, unlike the RANK function which does cause a gap. For more information about the Oracle DENSE_RANK function, including all of the SQL shown in this video and the examples, read the related article here: https://www.databasestar.com/oracle-dense_rank/
Views: 199 Database Star
SQL 21 NVL function Ae47
 
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Use of NVL in oracle to deal with null values
Views: 1194 hammadshams
Tutorial 46 : NULL in Oracle || NULLIF()
 
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Hi Friends! Here we are learning about NULLIF() function which gives you flexibility to deal with NULL value in Oracle. Hope the concept and example would be clear to you. Please let me know your feedback in comment box. Thanks! Happy Coding.
Views: 25 YourSmartCode
SQL Handling NULL
 
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Jamie King of Neumont University speaking on why NULL in SQL is different and how we compensate for it.
Views: 5621 Jamie King
Part 2   SQL query to get organization hierarchy
 
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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-2-sql-query-to-get-organization.html To get the best out of this video, the following concepts need to be understood first. These are already discussed in SQL Server Tutorial. 1. Self-Join - http://www.youtube.com/watch?v=qnYSN_7qwgg 2. CTE - http://www.youtube.com/watch?v=ZXB5b-7HJHk 3. Recursive CTE - http://www.youtube.com/watch?v=GGoV0wTMCg0 Here is the problem definition: 1. Employees table contains the following columns a) EmployeeId, b) EmployeeName c) ManagerId 2. If an EmployeeId is passed, the query should list down the entire organization hierarchy i.e who is the manager of the EmployeeId passed and who is managers manager and so on till full hierarchy is listed. For example, Scenario 1: If we pass David's EmployeeId to the query, then it should display the organization hierarchy starting from David. Scenario 2: If we pass Lara's EmployeeId to the query, then it should display the organization hierarchy starting from Lara. We will be Employees table for this demo. SQL to create and populate Employees table with test data Create table Employees ( EmployeeID int primary key identity, EmployeeName nvarchar(50), ManagerID int foreign key references Employees(EmployeeID) ) GO Insert into Employees values ('John', NULL) Insert into Employees values ('Mark', NULL) Insert into Employees values ('Steve', NULL) Insert into Employees values ('Tom', NULL) Insert into Employees values ('Lara', NULL) Insert into Employees values ('Simon', NULL) Insert into Employees values ('David', NULL) Insert into Employees values ('Ben', NULL) Insert into Employees values ('Stacy', NULL) Insert into Employees values ('Sam', NULL) GO Update Employees Set ManagerID = 8 Where EmployeeName IN ('Mark', 'Steve', 'Lara') Update Employees Set ManagerID = 2 Where EmployeeName IN ('Stacy', 'Simon') Update Employees Set ManagerID = 3 Where EmployeeName IN ('Tom') Update Employees Set ManagerID = 5 Where EmployeeName IN ('John', 'Sam') Update Employees Set ManagerID = 4 Where EmployeeName IN ('David') GO Here is the SQL that does the job Declare @ID int ; Set @ID = 7; WITH EmployeeCTE AS ( Select EmployeeId, EmployeeName, ManagerID From Employees Where EmployeeId = @ID UNION ALL Select Employees.EmployeeId , Employees.EmployeeName, Employees.ManagerID From Employees JOIN EmployeeCTE ON Employees.EmployeeId = EmployeeCTE.ManagerID ) Select E1.EmployeeName, ISNULL(E2.EmployeeName, 'No Boss') as ManagerName From EmployeeCTE E1 LEFT Join EmployeeCTE E2 ON E1.ManagerID = E2.EmployeeId
Views: 266645 kudvenkat
Differences between ISNULL and NULLIF
 
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Nullif and Null are two important functions in Sql server which are important to handle Null Value.This video gives difference between Nullif and Null functions.
Views: 837 SqlIsEasy
26. IS NULL and IS NOT NULL in SQL (Hindi)
 
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Please Subscribe Channel Like, Share and Comment Visit : www.geekyshows.com
Views: 17359 Geeky Shows
IS NOT NULL, IS NULL, NVL FUNCTION in oracle sql
 
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Oracle sql tutorial, How to select, retrieve rows with null values, not null values and NVL function in oracle SQL
Sql Server 2014-Ders 2-is null/is not null/like/between/order by
 
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Bu dersimizde: 1-İs null/İs not null 2:00 2-Operatörler 7:10 3-Between 13:28 4-Like 16:35 5-Order by 29:05 Konularına değindik İyi seyirler [URL=http://dosya.co/kifspkefxp76/ders2_kodlar.txt.html]ders2 kodlar.txt - 2 KB[/URL] - http://dosya.co/kifspkefxp76/ders2_kodlar.txt.html
Views: 68 Jelly Hit-FT
SQL6 - NULL values; the COUNT function
 
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What NULL values are, using "IS NULL" and "IS NOT NULL" in where statements. The count function, including examples of using COUNT with a WHERE clause.
Views: 647 Charles Boisvert
Null Comparisons in SQL Where Clause - SQL LESSON 26
 
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Null Comparisons in SQL Where Clause - SQL LESSON 26
Views: 7632 HandsonERP
SQL TUTORIALS : like operator and null operator
 
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In this Video you will learn how to perform wildcard searches with help of LIKE condition placing in WHERE clause. How to use NULL conditions.
Views: 889 learnoracle9i
KISS series on Analytics: 05 Dealing with null
 
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Welcome to the KISS video series. Solving problems that typically required complicated SQL in the past, that can now be easily solved with Analytic SQL syntax. In this session, we look at using our ranking functions when nulls are present. Scripts: https://livesql.oracle.com/apex/livesql/s/cokpdete3hiy3jo0yzoa4eerz Watch the entire Analytics playlist at https://www.youtube.com/playlist?list=PLJMaoEWvHwFJDyhMLCkNSSUQWw9waFkIj ========================================­­============== 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: 1335 Connor McDonald
29 - SQL NULL Values - Learn SQL from www.SQLServerLog.com [HD]
 
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Description: This video is about SQL NULL Values in SQL Server [HD]. You can refer complete Text Tutorial on my website: www.SQLServerLog.com You can join me on social networks: Facebook: http://www.facebook.com/SQLServerLog Linkedin: http://in.linkedin.com/in/SQLServerLog Google+: http://www.google.com/+SQLServerLogs Twitter: http://www.twitter.com/SQLServerLog
Views: 255 SQLServer Log
Oracle SQL Lecture 28: IS NULL and IS NOT NULL
 
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Oracle SQL: IS NULL and IS NOT NULL https://www.youtube.com/channel/UCnBpiBIOtRgMsk4G7Ri1jbQ
Views: 708 Oracle SQL
SQL TUTORIALS : NULL VALUES
 
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WHAT IS NULL IN SQL PLUS? DEFINING NULL VALUE.
Views: 2627 learnoracle9i
SQL, Count function and null values, 22Ae50
 
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behaviour of count function with a column that has null values
Views: 1231 hammadshams
SQL Tutorial for beginners What is Coalesce Function in Oracle
 
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What is Coalesce Function in Oracle How to Get First Not Null Record in SQL Coalesce function is using for to get first not null expression from list of arguments. SQL Tutorial SQL Tutorial for beginners PLSQL Tutorial PLSQL Tutorial for beginners PL/SQL Tutorial PL SQL Tutorial PL SQL Tutorial for beginners PL/SQL Tutorial for beginners Oracle SQL Tutorial
Views: 143 TechLake
SQL 011 SELECT NULL or What if the column value is unknown?
 
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Explains NULL or What if the column value is unknown? From http://computerbasedtraininginc.com SQL Course. Learn by doing SQL commands for ANSI Standard SQL, Access, DB2, MySQL, Oracle, PostgreSQL, and SQL Server.
Views: 1571 cbtinc
Problems with Null Value in SQL - SQL LESSON 25
 
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Problems with Null Value in SQL - SQL LESSON 25
Views: 9449 HandsonERP
Oracle SQL Lecture 32: How are NULL values treated while Sorting Data
 
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How are NULL values treated while Sorting Data https://www.youtube.com/channel/UCnBpiBIOtRgMsk4G7Ri1jbQ
Views: 537 Oracle SQL
The SQL ORDER BY clause
 
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For beginners. How to use the ORDER BY clause in the SELECT statement. Covers multiple sort keys, ascending, descending, how NULLs are handled, and best practice.
Views: 942 Database by Doug
SQL Conditions, Expressions, and Operators - PART 3 - SQL LESSON 8
 
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SQL Conditions, Expressions, and Operators - PART 3 - SQL LESSON 8
Views: 20314 HandsonERP
006   NULL Operator
 
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The Oracle IS NULL condition is used to test for a NULL value. You can use the Oracle IS NULL condition in either a SQL statement or in a block of PLSQL code. Source: https://www.techonthenet.com/oracle/isnull.php
Views: 201 Mr.Edward Isles
PL/SQL:NVL/NVL2/Coalesce function
 
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In this tutorial, you'll learn the difference between NVL,NVL2 &Coalesce functions PL/SQL (Procedural Language/Structured Query Language) is Oracle Corporation's procedural extension for SQL and the Oracle relational database. PL/SQL is available in Oracle Database (since version 7), TimesTen in-memory database (since version 11.2.1), and IBM DB2 (since version 9.7).[1] Oracle Corporation usually extends PL/SQL functionality with each successive release of the Oracle Database. PL/SQL includes procedural language elements such as conditions and loops. It allows declaration of constants and variables, procedures and functions, types and variables of those types, and triggers. It can handle exceptions (runtime errors). Arrays are supported involving the use of PL/SQL collections. Implementations from version 8 of Oracle Database onwards have included features associated with object-orientation. One can create PL/SQL units such as procedures, functions, packages, types, and triggers, which are stored in the database for reuse by applications that use any of the Oracle Database programmatic interfaces. PL/SQL works analogously to the embedded procedural languages associated with other relational databases. For example, Sybase ASE and Microsoft SQL Server have Transact-SQL, PostgreSQL has PL/pgSQL (which emulates PL/SQL to an extent), and IBM DB2 includes SQL Procedural Language,[2] which conforms to the ISO SQL’s SQL/PSM standard. The designers of PL/SQL modeled its syntax on that of Ada. Both Ada and PL/SQL have Pascal as a common ancestor, and so PL/SQL also resembles Pascal in several aspects. However, the structure of a PL/SQL package does not resemble the basic Object Pascal program structure as implemented by a Borland Delphi or Free Pascal unit. Programmers can define public and private global data-types, constants and static variables in a PL/SQL package.[3] PL/SQL also allows for the definition of classes and instantiating these as objects in PL/SQL code. This resembles usage in object-oriented programming languages like Object Pascal, C++ and Java. PL/SQL refers to a class as an "Abstract Data Type" (ADT) or "User Defined Type" (UDT), and defines it as an Oracle SQL data-type as opposed to a PL/SQL user-defined type, allowing its use in both the Oracle SQL Engine and the Oracle PL/SQL engine. The constructor and methods of an Abstract Data Type are written in PL/SQL. The resulting Abstract Data Type can operate as an object class in PL/SQL. Such objects can also persist as column values in Oracle database tables. PL/SQL is fundamentally distinct from Transact-SQL, despite superficial similarities. Porting code from one to the other usually involves non-trivial work, not only due to the differences in the feature sets of the two languages,[4] but also due to the very significant differences in the way Oracle and SQL Server deal with concurrency and locking. There are software tools available that claim to facilitate porting including Oracle Translation Scratch Editor,[5] CEITON MSSQL/Oracle Compiler [6] and SwisSQL.[7] The StepSqlite product is a PL/SQL compiler for the popular small database SQLite. PL/SQL Program Unit A PL/SQL program unit is one of the following: PL/SQL anonymous block, procedure, function, package specification, package body, trigger, type specification, type body, library. Program units are the PL/SQL source code that is compiled, developed and ultimately executed on the database. The basic unit of a PL/SQL source program is the block, which groups together related declarations and statements. A PL/SQL block is defined by the keywords DECLARE, BEGIN, EXCEPTION, and END. These keywords divide the block into a declarative part, an executable part, and an exception-handling part. The declaration section is optional and may be used to define and initialize constants and variables. If a variable is not initialized then it defaults to NULL value. The optional exception-handling part is used to handle run time errors. Only the executable part is required. A block can have a label. Package Packages are groups of conceptually linked functions, procedures, variables, PL/SQL table and record TYPE statements, constants, cursors etc. The use of packages promotes re-use of code. Packages are composed of the package specification and an optional package body. The specification is the interface to the application; it declares the types, variables, constants, exceptions, cursors, and subprograms available. The body fully defines cursors and subprograms, and so implements the specification. Two advantages of packages are: Modular approach, encapsulation/hiding of business logic, security, performance improvement, re-usability. They support object-oriented programming features like function overloading and encapsulation. Using package variables one can declare session level (scoped) variables, since variables declared in the package specification have a session scope.
Views: 3742 radhikaravikumar
Intersect operator in sql server
 
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sql intersect vs join sql server intersect example sql server intersect vs inner join sql server inner join remove duplicates In this video we will discuss 1. Intersect operator in sql server 2. Difference between intersect and inner join Intersect operator retrieves the common records from both the left and the right query of the Intersect operator. Introduced in SQL Server 2005 The number and the order of the columns must be same in both the queries The data types must be same or at least compatible Let us understand INTERSECT operator with an example. The following query retrieves the common records from both the left and the right query of the Intersect operator. Select Id, Name, Gender from TableA Intersect Select Id, Name, Gender from TableB We can also achieve the same thinkg using INNER join. The following INNER join query would produce the exact same result. Select TableA.Id, TableA.Name, TableA.Gender From TableA Inner Join TableB On TableA.Id = TableB.Id What is the difference between INTERSECT and INNER JOIN 1. INTERSECT filters duplicates and returns only DISTINCT rows that are common between the LEFT and Right Query, where as INNER JOIN does not filter the duplicates. To understand this difference, insert the following row into TableA Insert into TableA values (2, 'Mary', 'Female') Now execute the following INTERSECT query. Notice that we get only the DISTINCT rows Select Id, Name, Gender from TableA Intersect Select Id, Name, Gender from TableB Now execute the following INNER JOIN query. Notice that the duplicate rows are not filtered. Select TableA.Id, TableA.Name, TableA.Gender From TableA Inner Join TableB On TableA.Id = TableB.Id You can make the INNER JOIN behave like INTERSECT operator by using the DISTINCT operator Select DISTINCT TableA.Id, TableA.Name, TableA.Gender From TableA Inner Join TableB On TableA.Id = TableB.Id 2. INNER JOIN treats two NULLS as two different values. So if you are joining two tables based on a nullable column and if both tables have NULLs in that joining column then, INNER JOIN will not include those rows in the result-set, where as INTERSECT treats two NULLs as a same value and it returns all matching rows. To understand this difference, execute the following 2 insert statements Insert into TableA values(NULL, 'Pam', 'Female') Insert into TableB values(NULL, 'Pam', 'Female') INTERSECT query Select Id, Name, Gender from TableA Intersect Select Id, Name, Gender from TableB INNER JOIN query Select TableA.Id, TableA.Name, TableA.Gender From TableA Inner Join TableB On TableA.Id = TableB.Id Text version of the video http://csharp-video-tutorials.blogspot.com/2015/09/intersect-operator-in-sql-server.html Slides http://csharp-video-tutorials.blogspot.com/2015/09/intersect-operator-in-sql-server_6.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 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
Views: 35439 kudvenkat
Concept of a Null Value in SQL - Part 2 - SQL LESSON 24
 
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Concept of a Null Value in SQL - Part 2 - SQL LESSON 24
Views: 8109 HandsonERP
ORACLE Analytic Functions for Data Warehousing 2/ Arabic
 
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ORACLE Analytic Functions for Data Warehousing 2/ Arabic FIRST_VALUE last_VALUE row_number() --FIRST_VALUE and LAST_VALUE Analytic Functions select EMPLOYEE_ID, FIRST_NAME, HIRE_DATE from employees order by hire_date; select EMPLOYEE_ID, FIRST_NAME, HIRE_DATE , min(HIRE_DATE) over ( ) first_HIRE_DATE from employees select EMPLOYEE_ID, FIRST_NAME, HIRE_DATE , FIRST_VALUE(HIRE_DATE) over ( ) first_HIRE_DATE from employees order by hire_date; select EMPLOYEE_ID, FIRST_NAME, HIRE_DATE , max(HIRE_DATE ) over ( ) last_HIRE_DATE from employees select EMPLOYEE_ID, FIRST_NAME, HIRE_DATE , last_VALUE(HIRE_DATE ) over ( ) last_HIRE_DATE from employees order by HIRE_DATE drop table student_exam_result; CREATE TABLE student_exam_result (student_id number, exame_name varchar2(100), exame_try number, exame_results number ); insert into student_exam_result values(1,'calcluas',1,50); insert into student_exam_result values(1,'calcluas',2,66); insert into student_exam_result values(1,'calcluas',3,20); insert into student_exam_result values(2,'calcluas',1,66); insert into student_exam_result values(2,'calcluas',2,null); insert into student_exam_result values(2,'calcluas',3,7); insert into student_exam_result values(3,'calcluas',1,50); insert into student_exam_result values(3,'calcluas',2,98); insert into student_exam_result values(3,'calcluas',3,null); select * from student_exam_result select student_id, exame_name,exame_try,exame_results, last_value(exame_results) IGNORE NULLS over (PARTITION BY student_id, exame_name ) last_grade from student_exam_result order by student_id, exame_name, exame_try select student_id, exame_name,exame_try,exame_results, last_value(exame_results) IGNORE NULLS over (PARTITION BY student_id, exame_name ) last_grade, max(exame_results) over (PARTITION BY student_id, exame_name ) max_grade, avg(exame_results) over (PARTITION BY student_id, exame_name ) avg_grade from student_exam_result order by student_id, exame_name, exame_try ------------------------ select employee_id,first_name ,row_number() over(order by employee_id ) from employees select employee_id,first_name ,rownum from employees select employee_id,first_name ,department_id, row_number() over(partition by department_id order by employee_id ) from employees
Views: 551 khaled alkhudari
SQL Server video :- Explain aggregate functions,group by clause and having keyword ?
 
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For more such videos visit http://www.questpond.com See our other Step by Step video series below :- Learn Angular tutorial for beginners https://tinyurl.com/ycd9j895 Learn MVC Core step by step :- http://tinyurl.com/y9jt3wkv Learn MSBI Step by Step in 32 hours:- https://goo.gl/TTpFZN Learn Xamarin Mobile Programming Step by Step :- https://goo.gl/WDVFuy Learn Design Pattern Step by Step in 8 hours:- https://goo.gl/eJdn0m Learn C# Step by Step in 100 hours :- https://goo.gl/FNlqn3 Learn Data structures & algorithm in 8 hours :-https://tinyurl.com/ybx29c5s Learn SQL Server Step by Step in 16 hours:- http://tinyurl.com/ja4zmwu Learn Javascript in 2 hours :- http://tinyurl.com/zkljbdl Learn SharePoint Step by Step in 8 hours:- https://goo.gl/XQKHeP Learn TypeScript in 45 Minutes :- https://goo.gl/oRkawI Learn webpack in 50 minutes:- https://goo.gl/ab7VJi Learn Visual Studio code in 10 steps for beginners:- https://tinyurl.com/lwgv8r8 Learn Tableau step by step :- https://tinyurl.com/kh6ojyo Preparing for C# / .NET interviews start here http://www.youtube.com/watch?v=gaDn-sVLj8Q visit for 600+ videos @ http://www.questpond.com In this video we will try to understand aggregate function,group by clause and having keyword. This is also one of the favorite SQL Server interview questions as well. We are also distributing a 100 page Ebook ".NET Interview Question and Answers". If you want this ebook please share this video in your facebook/twitter/linkedin account and email us on [email protected] with the shared link and we will email you the PDF.
Views: 171307 Questpond
How To Use NULL, NOT NULL in SQL Server
 
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Learn additional ways to filter records in SQL SELECT ColumnNames FROM TableName WHERE ColumnName IS (NOT) NULL Click play ▶, then click the red [Subscribe] button to get access to new videos.
Views: 120 Software Success
SQL 018 SELECT WHERE IS NULL or How can I find unknown values?
 
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Explains the SELECT WHERE IS NULL clause. From http://ComputerBasedTrainingInc.com SQL Course. Learn by doing SQL commands for ANSI Standard SQL, Access, DB2, MySQL, Oracle, PostgreSQL, and SQL Server.
Views: 974 cbtinc
Oracle Tutorial null Vs Not null by kurdish part four
 
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For more information , please visit our website TECHEYE.ORG or join us on facebook https://www.facebook.com/techeye.org
Views: 199 TechEye
Oracle Database Indexes: Myths, Tips and Tricks
 
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In this tutorial, OCM John Watson will - via demonstrations - debunk these myths: Myth #1: Oracle Database does not index NULL Myth #2: A search that includes wildcards can't use an index if the wildcard precedes the string. Myth #3: Oracle will not use a function-based index unless the FBI is coded in the predicate. Myth #4: Indexes always help. The more indexes the better. See http://skillbuilders.com/free-oracle-tutorials for gigabytes of free Oracle video tutorials.
Views: 16073 SkillBuilders
IS NULL SQL
 
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שימוש בשפת SQL IS NULL
Views: 107 Gidi Aviezer
SQL Tip #1: Simple SELECT with an Order By
 
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A quick demonstration of how to create a simple SELECT statement and then add an ORDER BY to sort your data.
Views: 776 ITCorpsTV
Rank and Dense Rank in SQL Server
 
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rank and dense_rank example difference between rank and dense_rank with example rank vs dense_rank in sql server 2008 sql server difference between rank and dense_rank In this video we will discuss Rank and Dense_Rank functions in SQL Server Rank and Dense_Rank functions Introduced in SQL Server 2005 Returns a rank starting at 1 based on the ordering of rows imposed by the ORDER BY clause ORDER BY clause is required PARTITION BY clause is optional When the data is partitioned, rank is reset to 1 when the partition changes Difference between Rank and Dense_Rank functions Rank function skips ranking(s) if there is a tie where as Dense_Rank will not. For example : If you have 2 rows at rank 1 and you have 5 rows in total. RANK() returns - 1, 1, 3, 4, 5 DENSE_RANK returns - 1, 1, 2, 3, 4 Syntax : RANK() OVER (ORDER BY Col1, Col2, ...) DENSE_RANK() OVER (ORDER BY Col1, Col2, ...) RANK() and DENSE_RANK() functions without PARTITION BY clause : In this example, data is not partitioned, so RANK() function provides a consecutive numbering except when there is a tie. Rank 2 is skipped as there are 2 rows at rank 1. The third row gets rank 3. DENSE_RANK() on the other hand will not skip ranks if there is a tie. The first 2 rows get rank 1. Third row gets rank 2. SELECT Name, Salary, Gender, RANK() OVER (ORDER BY Salary DESC) AS [Rank], DENSE_RANK() OVER (ORDER BY Salary DESC) AS DenseRank FROM Employees RANK() and DENSE_RANK() functions with PARTITION BY clause : Notice when the partition changes from Female to Male Rank is reset to 1 SELECT Name, Salary, Gender, RANK() OVER (PARTITION BY Gender ORDER BY Salary DESC) AS [Rank], DENSE_RANK() OVER (PARTITION BY Gender ORDER BY Salary DESC) AS DenseRank FROM Employees Use case for RANK and DENSE_RANK functions : Both these functions can be used to find Nth highest salary. However, which function to use depends on what you want to do when there is a tie. Let me explain with an example. If there are 2 employees with the FIRST highest salary, there are 2 different business cases 1. If your business case is, not to produce any result for the SECOND highest salary, then use RANK function 2. If your business case is to return the next Salary after the tied rows as the SECOND highest Salary, then use DENSE_RANK function Since we have 2 Employees with the FIRST highest salary. Rank() function will not return any rows for the SECOND highest Salary. WITH Result AS ( SELECT Salary, RANK() OVER (ORDER BY Salary DESC) AS Salary_Rank FROM Employees ) SELECT TOP 1 Salary FROM Result WHERE Salary_Rank = 2 Though we have 2 Employees with the FIRST highest salary. Dense_Rank() function returns, the next Salary after the tied rows as the SECOND highest Salary WITH Result AS ( SELECT Salary, DENSE_RANK() OVER (ORDER BY Salary DESC) AS Salary_Rank FROM Employees ) SELECT TOP 1 Salary FROM Result WHERE Salary_Rank = 2 You can also use RANK and DENSE_RANK functions to find the Nth highest Salary among Male or Female employee groups. The following query finds the 3rd highest salary amount paid among the Female employees group WITH Result AS ( SELECT Salary, Gender, DENSE_RANK() OVER (PARTITION BY Gender ORDER BY Salary DESC) AS Salary_Rank FROM Employees ) SELECT TOP 1 Salary FROM Result WHERE Salary_Rank = 3 AND Gender = 'Female' Text version of the video http://csharp-video-tutorials.blogspot.com/2015/10/rank-and-denserank-in-sql-server.html Slides http://csharp-video-tutorials.blogspot.com/2015/10/rank-and-denserank-in-sql-server_1.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 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
Views: 69612 kudvenkat
SQL-Structured Query Language Tutorial NULL Values in SQL Training Lesson 2.8
 
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Learn about NULL Values in SQL- Structured Query Language at www.teachUcomp.com. Get the complete tutorial FREE at http://www.teachucomp.com/free Visit us today!
Views: 125 TeachUComp
SQL Server interview question :- Explain RowNumber,Partition,Rank and DenseRank ?
 
10:50
For more such videos visit http://www.questpond.com See our other Step by Step video series below :- Learn SQL Server Step by Step in 16 hours:- http://tinyurl.com/ja4zmwu Learn Angular tutorial for beginners https://tinyurl.com/ycd9j895 Learn MVC Core step by step :- http://tinyurl.com/y9jt3wkv Learn MVC 5 Step by Step in 16 hours:- https://goo.gl/dmdakg Learn MSBI Step by Step in 32 hours:- https://goo.gl/TTpFZN Learn Xamarin Mobile Programming Step by Step :- https://goo.gl/WDVFuy Learn Design Pattern Step by Step in 8 hours:- https://goo.gl/eJdn0m Learn C# Step by Step in 100 hours :- https://goo.gl/FNlqn3 Learn Data structures & algorithm in 8 hours :-https://tinyurl.com/ybx29c5s Learn Javascript in 2 hours :- http://tinyurl.com/zkljbdl Learn SharePoint Step by Step in 8 hours:- https://goo.gl/XQKHeP Learn TypeScript in 45 Minutes :- https://goo.gl/oRkawI Learn webpack in 50 minutes:- https://goo.gl/ab7VJi Learn Visual Studio code in 10 steps for beginners:- https://tinyurl.com/lwgv8r8 Learn Tableau step by step :- https://tinyurl.com/kh6ojyo SQL Server interview question :- Explain RowNumber,Partition,Rank and DenseRank ? We are also distributing a 100 page Ebook "Sql Server Interview Questions". If you want this ebook please share this video in your facebook/twitter/linkedin account and email us on [email protected] with the shared link and we will email you the PDF.
SQL Tutorial - 33: ABS() Function
 
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In this tutorial we'll check out the ABS() function that returns the absolute value of a number.
Views: 27256 The Bad Tutorials
90/125 Oracle PLSQL: Creating Triggers / Trigger Firing Sequence
 
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Creating Triggers in oracle Trigger Firing Sequence Learn Oracle PLSQL EXAM 1Z0-144
Views: 957 khaled alkhudari
SQL ROW NUMBER Functions | Row Number in SQL Server
 
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Video talks about Ranking functions in SQL server Row Number in SQL Server SQL Server Rank Rank in SQL server The Row_Number function This function works by assigning continuous ranking to the records, without skipping any number in the result set, whether it is partitioned or no Order_By : Order by clause in sql , This clause decides how the ranking or numbering of the data starts. Partition_By : Partition by clause in sql, This clause basically provides the grouping functionality on the result set data. Please check my channel for more videos .. https://www.youtube.com/channel/UCgWvQ6cBxZwABl_hL48ayXg Also part of SQL server Training Videos SQL tutorials
Views: 713 Training2SQL MSBI
SQL Tutorial - 06 - Select - Where, Limit, Distinct, Order by
 
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This SQL tutorial lives at: http://www.pvtuts.com/sql/sql-select The video covers the SQL select statement and the where modifier.
Views: 23472 ProgrammingVideos

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