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--µÚÒ»²½
--ÔÚmaster¿âÖн¨Á¢Ò»¸ö±¸·ÝÊý¾Ý¿âµÄ´æ´¢¹ý³Ì.
USE master
GO
CREATE PROC p
      @db_name sysname,         --Êý¾Ý¿âÃû
      @bk_path NVARCHAR(1024)     --±¸·ÝÎļþµÄ·¾¶
 AS
      IF ISNULL(@db_name,'')=''
            SET @db_name=db_name() ;
     
      DECLARE @dt VARCHAR(50) ;
      SET @dt=@db_name+'_'+CONVERT(VARCHAR(8) , GETDATE() ,112)+'_';
      SET @dt=@dt+REPLACE(CONVERT(VARCHAR(10) ,GETDATE() ,108),':','')
 
      IF RIGHT(@bk_path,1)<>'\'
           SET @bk_path=@bk_path+'\';
 
      EXEC ('BACKUP DATABASE ['+@db_name+'] TO DISK='''+@bk_path+@dt+'.bak'' WITH FORMAT');
GO
 
--µÚ¶þ²½
--ÔÚij¸öÎļþ¼ÐÀィÁ½¸ötxtÎļþ   --ÈçD:\batComand.txt ¸úD:\BackupDatabase.txt
--È»ºóbatCommand.txtÎļþÄÚÈÝÈçÏÂ:
sqlcmd -Smyfend\liangck -E -iG:\BackupDatabase.sql
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È»ºóBackupDatabase.txtÎļþÄÚÈÝÈçÏÂ:
USE master
GO
EXEC p 'Òª±¸·ÝµÄÊý¾Ý¿âÃû','G:\Backup\'
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sql case select

SELECT ID,TITLE,
(SELECT TIMES from CLS_COURSE WHERE CLS_COURSE.ID=CLS_CLASS.COURSEID) AS TIMES,
(SELECT CASE WHEN EXISTS(SELECT *  from CLS_ATDC WHERE CLS_ATDC.CLSID=CLS_CLASS.ID ) THEN (SELECT TOP 1 COURSETIME from CLS_ATDC WHERE CLS_ATDC.CLSID=CLS_CLASS.ID ORDER BY COURSETIME DESC) ELSE 0 ......

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