FARKLI BİR YOLDAN VERİTABANI YEDEKLEME
Hiç istediğiniz veritabanını bir Stored Procedure yardımıyla yedeklemek istediniz mi? Ya da birkaç satır SQL cümlesi yazıp bunu çeşitli iş tanımlarıyla otomatik hale getirmek? Evet, bu kesinlikle mümkün! Bu yazımızda sizinle bu işi tam anlamıyla yapacak bir Stored Procedure kod paylaşımı yapıyoruz.
Stored Procedure özelliklerine ek olarak, alınacak yedeğin FULL veya DIFFERENTIAL olmak üzere ayarlamanız mümkün. İlgili SP'yi kendi ihtiyaçlarınıza göre düzenleyerek işinizi fazlasıyla kolaylaştırabilirsiniz!
Bol şans!
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
-- =============================================
-- Description: Backs up single database
-- Parameter1: databaseName
-- Parameter2: backupType F=full, D=differential, L=log
-- Parameter3: backup file location
-- =============================================
ALTER PROCEDURE [DBA].[DO_DATABASE_BACKUP_SINGLE]
(
@databaseName sysname = null,
@backupType CHAR(1),
@backupLocation nvarchar(200) OUTPUT,
@backupNameOut nvarchar(200) OUTPUT
)
AS
SET NOCOUNT ON;
SET @backupLocation = 'C:SqlBackups'
DECLARE @DBs TABLE
(
ID int IDENTITY PRIMARY KEY,
DBNAME nvarchar(500)
)
-- Pick out only databases which are online in case ALL databases are chosen to be backed up
-- If specific database is chosen to be backed up only pick that out from @DBs
INSERT INTO @DBs (DBNAME)
SELECT Name FROM master.sys.databases
where state=0
AND name=@DatabaseName
OR @DatabaseName IS NULL
ORDER BY Name
-- Filter out databases which do not need to backed up
IF @backupType='F'
BEGIN
DELETE @DBs where DBNAME IN ('tempdb','Northwind','pubs','AdventureWorks')
END
ELSE IF @backupType='D'
BEGIN
DELETE @DBs where DBNAME IN ('tempdb','Northwind','pubs','master','AdventureWorks')
END
ELSE IF @backupType='L'
BEGIN
DELETE @DBs where DBNAME IN ('tempdb','Northwind','pubs','master','AdventureWorks')
END
ELSE
BEGIN
RETURN
END
-- Declare variables
DECLARE @BackupName varchar(100)
DECLARE @BackupFile varchar(100)
DECLARE @DBNAME varchar(300)
DECLARE @sqlCommand NVARCHAR(1000)
DECLARE @dateTime NVARCHAR(20)
DECLARE @Loop int
-- Loop through the databases one by one
SELECT @Loop = min(ID) FROM @DBs
WHILE @Loop IS NOT NULL
BEGIN
-- Database Names have to be in [dbname] format since some have - or _ in their name
SET @DBNAME = '['+(SELECT DBNAME FROM @DBs WHERE ID = @Loop)+']'
-- Set the current date and time n yyyyhhmmss format
SET @dateTime = REPLACE(CONVERT(VARCHAR, GETDATE(),101),'/','') + '_' + REPLACE(CONVERT(VARCHAR, GETDATE(),108),':','')
-- Create backup filename in pathfilename.extension format for full,diff and log backups
IF @backupType = 'F'
SET @BackupFile = @backupLocation+REPLACE(REPLACE(@DBNAME, '[',''),']','')+ '_FULL_'+ @dateTime+ '.BAK'
ELSE IF @backupType = 'D'
SET @BackupFile = @backupLocation+REPLACE(REPLACE(@DBNAME, '[',''),']','')+ '_DIFF_'+ @dateTime+ '.BAK'
ELSE IF @backupType = 'L'
SET @BackupFile = @backupLocation+REPLACE(REPLACE(@DBNAME, '[',''),']','')+ '_LOG_'+ @dateTime+ '.TRN'
-- Provide the backup a name for storing in the media
IF @backupType = 'F'
SET @BackupName = REPLACE(REPLACE(@DBNAME,'[',''),']','') +' full backup for '+ @dateTime
IF @backupType = 'D'
SET @BackupName = REPLACE(REPLACE(@DBNAME,'[',''),']','') +' differential backup for '+ @dateTime
IF @backupType = 'L'
SET @BackupName = REPLACE(REPLACE(@DBNAME,'[',''),']','') +' log backup for '+ @dateTime
-- Generate the dynamic SQL command to be executed
IF @backupType = 'F'
BEGIN
SET @sqlCommand = 'BACKUP DATABASE ' +@DBNAME+ ' TO DISK = '''+@BackupFile+ ''' WITH INIT, NAME= ''' +@BackupName+''', NOSKIP, NOFORMAT'
END
IF @backupType = 'D'
BEGIN
SET @sqlCommand = 'BACKUP DATABASE ' +@DBNAME+ ' TO DISK = '''+@BackupFile+ ''' WITH DIFFERENTIAL, INIT, NAME= ''' +@BackupName+''', NOSKIP, NOFORMAT'
END
IF @backupType = 'L'
BEGIN
SET @sqlCommand = 'BACKUP LOG ' +@DBNAME+ ' TO DISK = '''+@BackupFile+ ''' WITH INIT, NAME= ''' +@BackupName+''', NOSKIP, NOFORMAT'
END
--Execute the generated SQL command
EXEC(@sqlCommand)
SET @backupNameOut = @BackupName
SET @backupLocation =@BackupFile
-- Goto the next database
SELECT @Loop = min(ID) FROM @DBs where ID>@Loop
END
Bu gönderiyi paylaş:
