Examples A. Using a simple Boolean expression The following example has a simple Boolean expression (1=1) that is true and, therefore, prints the first statement. SQL Kopiëren IF 1 = 1 PRINT 'Boolean_expression is true.' ELSE PRINT 'Boolean_expression is false.' ; The following examp...
Examples: Azure Synapse Analytics and Analytics Platform System (PDW) E: Using a query as part of a Boolean expression The following example uses IF...ELSE to determine which of two responses to show the user, based on the weight of an item in the DimProduct table. SQL Copy ...
IF… ELSE— Conditional flow control. ITERATE— Restart aLOOP,REPEAT, andWHILEstatement. LEAVE— Exit a server code module such as stored procedure, function, and so on, and return control to the calling scope. LOOP— Loop indefinitely. ...
In order to have a table to demonstrate using the CASE expression I will be using the script in Listing 1 to create a sample table namedMyOrder. If you would like to follow along with my examples and run them on your SQL Server instance you can create this table in a database of you...
USEAdventureWorks2022; GOCREATEPROCEDUREcheckstate @paramVARCHAR(11)ASIF(SELECTStateProvinceFROMPerson.vAdditionalContactInfoWHEREContactID = @param) ='WA'RETURN1ELSERETURN2; GO The following examples show the return status from executingcheckstate. The first shows a contact in Washington; the second, ...
IF… ELSE— Conditional flow control. ITERATE— Restart a LOOP, REPEAT, and WHILE statement. LEAVE— Exit a server code module such as stored procedure, function, and so on, and return control to the calling scope. LOOP— Loop indefinitely. REPEAT…...
FinishedGoodsFlag, NULLIF(MakeFlag,FinishedGoodsFlag) AS [Null if Equal] FROM Production.Product WHERE ProductID < 10; GO SELECT ProductID, MakeFlag, FinishedGoodsFlag, [Null if Equal] = CASE WHEN MakeFlag = FinishedGoodsFlag THEN NULL ELSE MakeFlag END FROM Production.Product WHERE ProductID...
预览本课程 Learn Advanced T-SQL For SQL Server Administrator 评分:4.5,满分 5 分4.5 (989 个评分) 6320 名学生 您将会学到 The student will learn about stored procedures, If Else, While Loop, cursors, derived tables, CTEs, sproc permissions, temp tables, sproc parameters and much more. The...
With Visual Studio and SSDT installed, find a development or test server that you can use for initial testing.I do not recommend working in a production environment.All examples here use a local installation of SQL Server 2022 to prevent breaking anything for anyone else. ...
This concept impacts on every situation in T-SQL querying. Some days it makes things hard to do and sometimes it makes a fantastic process that we do not expect. To illustrate these impacts I explain four real situations with their examples. ...