SQL Копиране IF 1 = 1 PRINT 'Boolean_expression is true.' ELSE PRINT 'Boolean_expression is false.' ; The following example has a simple Boolean expression (1=2) that is false, and therefore prints the se
Transact-SQL language reference for IF-ELSE statements to provide control flow in Transact-SQL statements.
因此,MS SQL Server提供了Transact-SQL(T-SQL)语言,除了符合SQL的原有语法规则外,另外增加了变量、程序区块、流程控制等第三代语言的功能,使其应用弹性得到大大的提升。 而MS SQL Server数据库系统的最新版本SQL Server 2005,除了提供非常多的SQL Server 2000版本所没有的功能外,也针对原有的各个部分加以改进以提...
SQL -- Create a user on a user database mapped to a login.CREATEUSER[job-agent-UMI]FROMLOGIN [job-agent-UMI];-- Grant permissions as necessary to execute your jobs. For example, ALTER and CREATE TABLE:GRANTALTERONSCHEMA::dboTOjob-agent-UMI;GRANTCREATETABLETOjob-agent-UMI; ...
SQL 複製 USE msdb; GO --distribute the publication to subscriber, for example EXECUTE dbo.sp_start_job N'DISTRIBUTOR-PUBLICATION-SnapshotRepl-SUBSCRIBER'; GO 連接訂閱者並查詢複製的資料。 在訂閱者上,執行下列查詢來檢查複寫是否運作正常: SQL 複製 SELECT * FROM [Sales].[dbo].[Customer]; ...
清单2:用ELSE表达式进行简单的CASE表达式 Listing 2: Simple CASE expression with ELSE expression Let me first talk about why this is a Simple CASE expression. If you review the code in Listing 2 you can see that right after the word CASE I specified the expression “YEAR(OrderDT)”, and the...
For example, if you want to know how to return a part of a date (such as the month), search the index for dates [SQL Server], and then select dateparts. This takes you to the article DATEPART (Transact-SQL). As another example, to find out how to work with strings, search for ...
For example, if you want to know how to return a part of a date (such as the month), search the index for dates [SQL Server], and then select dateparts. This takes you to the article DATEPART (Transact-SQL). As another example, to find out how to work with strings, search for ...
自SQL Server2005开始引入了一个T-SQL独有的表运算符-PIVOT,它可以对某个源表或表表达式进行操作、透视数据,再返回一个结果表。 PIVOT运算符同样涉及前面介绍的三个逻辑处理阶段(分组、扩展和聚合)以及同样的透视转换元素,但使用的是不同的、SQL Server原生的语法。
Bug #35430 "if" example from documentation doesn't work Submitted: 19 Mar 2008 9:52Modified: 19 Mar 2008 21:14 Reporter: Daniel Fischer Email Updates: Status: Closed Impact on me: None Category: MySQL Server: DocumentationSeverity: S3 (Non-critical) Version: 5.0+OS: Any Assigned to:...