How to update Database version via script?

The script as following:

:setvar DatabaseVersion "1.0001"

--:setvar DatabaseName "John"

 

USE Shotgun
GO

/* Update database version */
IF EXISTS(SELECT *
  FROM fn_listextendedproperty(default, default, default, default, default, default, default)
  WHERE name = 'DatabaseVersion')
BEGIN  
 EXEC sys.sp_updateextendedproperty
 @name = N'DatabaseVersion',
 @value = N'$(DatabaseVersion)'
END
ELSE BEGIN
 EXEC sys.sp_addextendedproperty
 @name = N'DatabaseVersion',
 @value = N'$(DatabaseVersion)';
END
GO

 

If you directlly exec the code above, you will get an error like

"Msg 102, Level 15, State 1, Line 15
Incorrect syntax near ':'."

 

 For setvar need to be executed under "SQLCMD Mode". Trun on it as following: toolbar-->Qurey--->SQLCMD Mode. (Just click it to turn on)

格式如下：

：setvar  變量名稱 變量值 /*  可以不加雙引號 */

用$(變量名稱)去在下面的SQL代碼中，調用預定義的變量即可。