自動備份SQL Server數(shù)據(jù)庫中用戶創(chuàng)建的Stored Procedures
為了避免意外丟失/損壞辛苦創(chuàng)建的Stored Procedures,或者想恢復到以前版本的Stored Procedures,這樣提供了一個有效方法,可以自動將指定數(shù)據(jù)庫中的Stored Procedures進行備份。
1. 在特定的數(shù)據(jù)庫(建議為SQL Server的master數(shù)據(jù)庫)上創(chuàng)建數(shù)據(jù)表StoredProceduresBackup,用來保存?zhèn)浞莸腟tored Procedures。
IF OBJECT_ID('StoredProceduresBackup') IS NOT NULL
DROP TABLE StoredProceduresBackup
GO
CREATE TABLE StoredProceduresBackup
(
AutoID INTEGER IDENTITY(1,1) PRIMARY KEY,
InsertDate DATETIME DEFAULT GETDATE(),
DatabaseName VARCHAR(50),
ProcedureName VARCHAR(50),
ProcedureText VARCHAR(4000)
)
GO
2. 創(chuàng)建Stored Procedure名為usp_ProceduresVersion,該Stored Procedure用來將需要備份Stored Procedures的備份到上述創(chuàng)建的數(shù)據(jù)表中。
其中主要訪問sysobjects和syscomments系統(tǒng)表:
(1) sysobjects system tableContains one row for each object (constraint, default, log, rule, stored procedure, and so on) created within a database. In tempdb only, this table includes a row for each temporary object.
(2) syscomments system tableContains entries for each view, rule, default, trigger, CHECK constraint, DEFAULT constraint, and stored procedure. The text column contains the original SQL definition statements, which are limited to a maximum size of 4 MB. This table is stored in each database.
(3) source script of stored procedure.
/*
Name:; usp_ProceduresVersion
Description:; Back up user defined stored-procedures
Author:; Rickie
Modification Log: NO
Description;;;;;Date;;Changed By
Created procedure;8/27/2004Rickie
*/
CREATE PROCEDURE usp_ProceduresVersion @DatabaseName NVARCHAR(50)
AS
SET NOCOUNT ON
--This will hold the dynamic string.
DECLARE @strSQL NVARCHAR(4000)
--Set the string
--Only stored procedures
SET @strSQL = 'INSERT INTO master.dbo.StoredProceduresBackup(
DatabaseName,ProcedureName,ProcedureText )
SELECT ''' + @DatabaseName + ''', so.name, sc.text
FROM ' + @DatabaseName + '.dbo.sysobjects so
INNER JOIN ' + @DatabaseName + '.dbo.syscomments sc
ON so.id = sc.id
WHERE so.type = ''p''' + ' and so.status>0
Order By so.id '
--Execute the string
EXEC dbo.sp_executesql @strSQL
GO
3. 創(chuàng)建Job執(zhí)行上述Stored Procedure
在SQL Server上創(chuàng)建Job,并設定運行計劃,這樣指定數(shù)據(jù)庫的Stored Procedures就可以自動備份到上述數(shù)據(jù)表中。
OK. That’s all. Any questions about it, please contact me at rickieleemail@yahoo.com. Have a good luck.
