sql数据自动完全备份数据库实体

-- =============================================
-- Author:      <广州_小海>
-- Blog:         [email protected]
-- Create date: <2015/09/08>
-- Description: <批量备份数据库>
-- =============================================
DECLARE
      @FileName VARCHAR(200),
      @CurrentTime VARCHAR(50),
      @DBName VARCHAR(100),
      @SQL VARCHAR(1000)

SET @CurrentTime = convert(varchar,getdate(),112)

DECLARE CurDBName CURSOR FOR 
    SELECT NAME FROM Master..SysDatabases where dbid>4

OPEN CurDBName
FETCH NEXT FROM CurDBName INTO @DBName
WHILE @@FETCH_STATUS = 0
BEGIN
    --Execute Backup
    SET @FileName = 'E:\DBBackup\' + @DBName + '_' + @CurrentTime
    SET @SQL = 'BACKUP DATABASE ['+ @DBName +'] TO DISK = ''' + @FileName + '.bak' +
     ''' WITH NOINIT, NOUNLOAD, NAME = N''' + @DBName + '_backup'', NOSKIP, STATS = 10, NOFORMAT'
    EXEC(@SQL)

    --Get Next DataBase
    FETCH NEXT FROM CurDBName INTO @DBName
END

CLOSE CurDBName
DEALLOCATE CurDBName
go
-- =============================================

-- Author:      <广州_小海>

-- Blog:         [email protected]

-- Create date: <2015/09/08>
-- Description: <批量删除昨天备份数据库>
-- =============================================
DECLARE
      @FileName VARCHAR(200),
      @CurrentTime VARCHAR(50),
      @DBName VARCHAR(100),
      @SQL VARCHAR(1000)

SET @CurrentTime = convert(varchar,dateadd(day,-1,getdate()),112)
--SET @CurrentTime=convert(varchar,getdate(),112)
DECLARE CurDBName CURSOR FOR 
    SELECT NAME FROM Master..SysDatabases where dbid>4

OPEN CurDBName
FETCH NEXT FROM CurDBName INTO @DBName
WHILE @@FETCH_STATUS = 0
BEGIN
    --Execute Backup 删除昨天的备份数据
    SET @FileName = 'E:\DBBackup\' + @DBName + '_' + @CurrentTime+ '.bak' 
  set   @SQL='del   '+@FileName +'   /F'   
  exec   master..xp_cmdshell   @SQL 
  print @SQL
    --Get Next DataBase
    FETCH NEXT FROM CurDBName INTO @DBName
END

CLOSE CurDBName
DEALLOCATE CurDBName

两部分sql脚本go 上一部分是备份每天的数据，下一部分是删除昨天的备份数据。
新建一个作业把sql脚本会