t-sql else if

How do you know how your application performs? What tools can you use? Each developer needs to determine that each application's TSQL statement is optimal. By adjusting each query you can be sure that your application is running as efficiently as

The syntax of plsql is different from that of tsql. For more information, see. The syntax of plsql is different from that of tsql. For more information, see. Insert into testtable (recordnumber, currentdate) values (I, sysdate ); Print ''; Select @

Take the TSQL out, do a package, apply all the tables, update there are two kinds, normal update and Count updateLook at the code: These two methods are written in the DAL in the data manipulation base class, only its subclasses can use it, so use

Original: DBA tool--dmv--How to know how long a TSQL statement has been runningThe DBA usually wants to know how long the running statement has been executed? You can use SQL Server Profiler to capture the start time of a statement and compare it to

The original post source csdn, the specific post cannot be remembered, And I modified it a bit based on the original one: If exists (select * From DBO. sysobjects where id = object_id (n' [DBO]. [p_createjob] ') and objectproperty (ID, n'

The HierarchyID data type is a variable-length system data type. hierarchyid to represent position in a hierarchy." data-guid="92abe496f5464189db77fdc60976e369">You can use HierarchyID to represent locations in a hierarchy. hierarchyid to Represent

TSQL HierarchyID Data Type usageApril 25, 2017 09:47:46Number of readings:The HierarchyID data type is a variable-length system data type. You can use HierarchyID to represent locations in a hierarchy. columns of type HierarchyID do not

Basics of T-sql: Beyond basic Level 6: Using case expressions and IIF functionsGregory larsen,2016/04/20 (First edition: 2014/04/09)The seriesThis article is part of "Stairway series: The cornerstone of T-sql: Beyond the Basics"From his stairway to

How does php obtain the stored procedure createprocedurea (outbint) begin & nbsp; select10; & nbsp; setb3; end; PHP $ tsql with returned values returned by mysql. & quot; calla (@ B); & quot; $ tsql. & quot; select @ B; & quot; if ($ m php how to

Original address: https://www.toutiao.com/i6502733303550837261/The SQL language is divided into: DDL data Definition Language, DML data manipulation language, DCL is database control language, TC transaction Control Language*DDL data definition