SQL Server批量备份数据库

 1 --批量备份数据库201911
 2 --开启文件夹权限
 3 GO
 4 SP_CONFIGURE ‘SHOW ADVANCED OPTIONS‘,1
 5 RECONFIGURE
 6 GO
 7 SP_CONFIGURE ‘XP_CMDSHELL‘,1
 8 RECONFIGURE
 9 GO
10  
11 DECLARE
12       @FileName VARCHAR(200),
13       @CurrentTime VARCHAR(50),
14       @DBName VARCHAR(100),
15       @SQL VARCHAR(1000),
16       @FilePath VARCHAR(100)
17  
18 --SET @CurrentTime = CONVERT(CHAR(8),GETDATE(),112) + CAST(DATEPART(hh, GETDATE()) AS VARCHAR) + CAST(DATEPART(mi, GETDATE()) AS VARCHAR)
19 --年月日
20 SET @CurrentTime = CONVERT(CHAR(8),GETDATE(),112)
21  
22 SET @FilePath = ‘E:\DBBak\‘ + @CurrentTime + ‘\‘
23 --select CONVERT(CHAR(8),GETDATE(),112)
24 --文件夹不存在，则创建
25 declare @TEMP TABLE(A INT,B INT,C INT)--建立虚拟表，用来判断文件夹是否存在
26 INSERT @TEMP EXEC [MASTER]..XP_FILEEXIST @FilePath
27 IF NOT EXISTS(SELECT * FROM @TEMP WHERE B=1)
28 BEGIN
29     --XP_CMDSHELL不允许使用变量拼接，所以使用exec方法
30     declare @EX NVARCHAR(255)
31     SET @EX = ‘EXEC XP_CMDSHELL ‘‘MKDIR ‘ + @FilePath + ‘‘‘‘;
32     EXEC(@EX)
33 END
34  
35 
36 
37  --获取所有非系统数据库
38 DECLARE CurDBName CURSOR FOR
39     SELECT NAME FROM Master..SysDatabases where dbid>4
40  
41 --循环备份数据库
42 OPEN CurDBName
43 FETCH NEXT FROM CurDBName INTO @DBName
44 WHILE @@FETCH_STATUS = 0
45 BEGIN
46     --Execute Backup
47     SET @FileName = @FilePath + @DBName + ‘_‘ + @CurrentTime
48     SET @SQL = ‘BACKUP DATABASE [‘+ @DBName +‘] TO DISK = ‘‘‘ + @FileName + ‘.bak‘ +
49      ‘‘‘ WITH NOINIT, NOUNLOAD, NAME = N‘‘‘ + @DBName + ‘_backup‘‘, NOSKIP, STATS = 10, NOFORMAT‘
50     EXEC(@SQL)
51  
52     --Get Next DataBase
53     FETCH NEXT FROM CurDBName INTO @DBName
54 END
55  
56 CLOSE CurDBName
57 DEALLOCATE CurDBName
58 
59 
60 /*
61 --删除30天之前的备份文件
62 --开启文件夹权限
63 GO
64 SP_CONFIGURE ‘SHOW ADVANCED OPTIONS‘,1
65 RECONFIGURE
66 GO
67 SP_CONFIGURE ‘XP_CMDSHELL‘,1
68 RECONFIGURE
69 GO
70 EXEC xp_cmdshell ‘forfiles /p F:\DBBak\ /m * -d -30 /c "cmd /c rd /s /q @path"‘
71 */