Tôi đã được viết kịch bản sao lưu để sử dụng cho bản thân mình, cài đặt như được đề cập trong bài viết của splattne :
----- Version: 2.0 - 2009-12-12 - SQL 2000 Compatible
----- Pham Kim Ngan (jbngan@gmail.com)
----- Usage:
-- Copy 7za.exe (http://www.7-zip.org/download.html - Command Line Version) to @CFG_BACKUP_PATH
-- Modify @CFG_BACKUP_PATH = <Backup Store Path> - no long filename/directory please
-- Modify @CFG_DAYS_DELETE = Days to keep backups
-- Enable 'xp_cmdshell' (SQL 2005/EXPRESS or higher)
----- Configuration Variables
DECLARE @CFG_BACKUP_PATH NVARCHAR(256)
DECLARE @CFG_DAYS_DELETE INT
SET @CFG_BACKUP_PATH = 'C:\DatabaseBackup'
SET @CFG_DAYS_DELETE = 30
DECLARE @Today DATETIME
DECLARE @TodayName CHAR(8)
SET @Today = GETDATE()
SET @TodayName = CONVERT(CHAR(8), @Today, 112)
DECLARE @id INT
DECLARE @name VARCHAR(50)
DECLARE @path VARCHAR(256)
DECLARE @cmd VARCHAR(256)
----- Create Temporarity Directory
DECLARE @TempDir VARCHAR(256)
SET @TempDir = @CFG_BACKUP_PATH + '\' + CONVERT(VARCHAR(256), NEWID())
SET @cmd = 'md ' + @TempDir
EXEC xp_cmdshell @cmd, no_output
----- List of current databases, only 'ONLINE' databases to be backup
DECLARE @dbList TABLE
(
dbno INT IDENTITY,
dbname NVARCHAR(256)
)
INSERT INTO @dbList ( dbname )
SELECT name
FROM master.dbo.sysdatabases
WHERE ( name NOT IN ( 'tempdb' ) )
AND DATABASEPROPERTYEX(name, 'Status') = 'ONLINE'
------ Starting backup, one by one
SELECT @id = dbno,
@name = dbname
FROM @dbList
WHERE dbno = 1
WHILE @@ROWCOUNT = 1
BEGIN
PRINT N'++ Backup: ' + @name
SET @path = @TempDir + '\' + @name + '.bak'
BACKUP DATABASE @name TO DISK = @path
SELECT @id = dbno,
@name = dbname
FROM @dbList
WHERE dbno = @id + 1
END
PRINT N'++ Compressing: ' + @TempDir
----- Delete output file if existed
SET @cmd = 'del /f /q ' + @CFG_BACKUP_PATH + '\' + @TodayName + '.ZIP'
EXEC xp_cmdshell @cmd, no_output
DECLARE @Count INT
DECLARE @StartTime DATETIME
SET @StartTime = GETDATE()
----- Compress, -mx1 = Set Compression Ratio to 1 (very low)
SET @cmd = @CFG_BACKUP_PATH + '\7za.exe a -bd -y -tzip -mx1 '
SET @cmd = @cmd + @CFG_BACKUP_PATH + '\' + @TodayName + '.ZIP ' + @TempDir + '\*.bak"'
EXEC xp_cmdshell @cmd, no_output
SET @Count = DATEDIFF(second, @StartTime, GETDATE())
PRINT N'++ Compression Time: ' + CONVERT(VARCHAR, @Count) + ' seconds'
SET @Count = DATEDIFF(second, @Today, GETDATE())
PRINT N'++ Total Execution Time: ' + CONVERT(VARCHAR, @Count) + ' seconds'
---- Delete temporarity directory
SET @cmd = 'rd /s /q ' + @TempDir
EXEC xp_cmdshell @cmd, no_output
---- Delete previous backup versions
DECLARE @OlderDateName CHAR(8)
SET @OlderDateName = CONVERT(CHAR(8), @Today - @CFG_DAYS_DELETE, 112)
----- List all .ZIP files
CREATE TABLE #delList
(
subdirectory VARCHAR(256),
depth INT,
[file] BIT
)
INSERT INTO #delList
EXEC xp_dirtree @CFG_BACKUP_PATH, 1, 1
DELETE #delList
WHERE RIGHT(subdirectory, 4) <> '.ZIP'
SELECT @Count = COUNT(1)
FROM #delList
PRINT N'++ Number of Backups: ' + CONVERT(NVARCHAR, @Count)
SELECT TOP 1
@name = subdirectory
FROM #delList
WHERE LEN(subdirectory) = 12
AND RIGHT(subdirectory, 4) = '.ZIP'
AND REPLACE(subdirectory, '.ZIP', '') < @OlderDateName
WHILE ( @@ROWCOUNT = 1 )
BEGIN
PRINT N'++ Delete Older Backup: ' + @name
SET @cmd = 'del /f /q ' + @CFG_BACKUP_PATH + '\' + @name
EXEC xp_cmdshell @cmd, no_output
DELETE #delList
WHERE subdirectory = @name
SELECT TOP 1
@name = subdirectory
FROM #delList
WHERE LEN(subdirectory) = 12
AND RIGHT(subdirectory, 4) = '.ZIP'
AND REPLACE(subdirectory, '.ZIP', '') < @OlderDateName
END
DROP TABLE #delList
PRINT N'++ Done.'
PRINT ''
PRINT ''
PRINT ''