DB太大？一键帮你收缩所有DB文件大小（Shrink Files for All Databases in SQL Server）

 1 -- Created by Bob from http://www.cnblogs.com/lavender000/
 2 use master
 3 DECLARE dbCursor CURSOR for select name from [master].[sys].[databases] where state = 0 and is_in_standby = 0;
 4 DECLARE @dbname NVARCHAR(255)
 5 DECLARE @recoveryModel NVARCHAR(255)
 6 DECLARE @tempTSQL NVARCHAR(255)
 7 DECLARE @dbFilesCursor CURSOR
 8 DECLARE @dbFile NVARCHAR(255)
 9 DECLARE @flag BIT
10 
11 OPEN dbCursor
12 FETCH NEXT FROM dbCursor INTO @dbname
13 
14 WHILE @@FETCH_STATUS = 0
15 BEGIN
16     if((@dbname <> ‘master‘) and (@dbname <> ‘model‘) and (@dbname <> ‘msdb‘) and (@dbname <> ‘tempdb‘) and (@dbname <> ‘Resource‘))
17     begin
18         print(‘‘)
19         print(‘Database [‘ + @dbname + ‘] will be shrinked log...‘)
20         SET @flag = 1
21         SET @recoveryModel = (SELECT recovery_model_desc FROM sys.databases WHERE name = @dbname)
22         if((@recoveryModel = ‘FULL‘) or (@recoveryModel = ‘BULK_LOGGED‘))
23         begin
24             SET @tempTSQL = (select CONCAT(‘ALTER DATABASE [‘, @dbname, ‘] SET RECOVERY SIMPLE with no_wait‘))
25             EXEC sp_executesql @tempTSQL
26             if (@@ERROR = 0)
27             begin
28                 print(‘    Database [‘ + @dbname + ‘] recovery model has been changed to ‘‘SIMPLE‘‘.‘)
29                 SET @flag = 1
30             end
31             else
32             begin
33                 print(‘Database [‘ + @dbname + ‘] recovery model failed to be changed to ‘‘SIMPLE‘‘.‘)
34                 SET @flag = 0
35             end
36         end
37 
38         if(@flag = 1)
39         begin
40             SET @tempTSQL = (select CONCAT(‘use [‘, @dbname, ‘]‘))
41             EXEC sp_executesql @tempTSQL            
42             SET @dbFilesCursor = CURSOR for select sys.master_files.name from sys.master_files, [master].[sys].[databases] where databases.name = @dbname and databases.database_id = sys.master_files.database_id
43             open @dbFilesCursor
44             FETCH NEXT FROM @dbFilesCursor INTO @dbFile
45             WHILE @@FETCH_STATUS = 0
46             BEGIN
47                 SET @tempTSQL = (select CONCAT(‘use [‘, @dbname, ‘] DBCC SHRINKFILE (N‘‘‘, @dbFile, ‘‘‘) with NO_INFOMSGS‘))
48                 EXEC sp_executesql @tempTSQL
49                 if(@@ERROR = 0)    print(‘        Database file [‘ + @dbFile + ‘] has been shrinked log successfully.‘)
50                 FETCH NEXT FROM @dbFilesCursor INTO @dbFile
51             END
52             CLOSE @dbFilesCursor
53             DEALLOCATE @dbFilesCursor
54 
55             if(@recoveryModel <> ‘SIMPLE‘)
56             begin
57                 -- Finally changed back
58                 SET @tempTSQL = (select CONCAT(‘ALTER DATABASE [‘, @dbname, ‘] SET RECOVERY ‘, @recoveryModel, ‘ with no_wait‘))
59                 EXEC sp_executesql @tempTSQL
60                 if (@@ERROR = 0)
61                 begin
62                     print(‘    Database [‘ + @dbname + ‘] recovery model has been changed back to ‘‘‘ + @recoveryModel + ‘‘‘‘)
63                 end
64                 else 
65                 begin
66                     print(‘    Database [‘ + @dbname + ‘] recovery model failed to be changed back to ‘‘‘ + @recoveryModel + ‘‘‘‘)
67                 end
68             end
69         end
70     end
71 FETCH NEXT FROM dbCursor INTO @dbname
72 END
73 
74 CLOSE dbCursor
75 DEALLOCATE dbCursor