[转载]SqlServer分离所有用户数据库

USE [master]
GO
IF EXISTS ( SELECT *
FROM sys.objects
WHERE [object_id] = OBJECT_ID(N‘[dbo].[spDetachAllUserDatabases]‘)
AND type IN ( N‘P‘, N‘PC‘ ) )
DROP PROCEDURE [dbo].[spDetachAllUserDatabases]
GO

CREATE PROCEDURE [dbo].[spDetachAllUserDatabases]
AS
BEGIN
—Declare Variables
DECLARE @DatabaseName VARCHAR(100)
DECLARE @MinDatabaseID INT
DECLARE @MaxDatabaseID INT
DECLARE @SQL VARCHAR(4000)
—Check for temporary table and drop it if it exists
IF OBJECT_ID(‘tempDB.dbo.#Database‘) IS NOT NULL
DROP TABLE [#Database];

—Create temporary table
CREATE TABLE #Database
(
ID INT IDENTITY(1, 1),
DatabaseName VARCHAR(100)
)

—Check for existing user databases
IF EXISTS ( SELECT name
FROM sys.databases
WHERE database_id > 4
AND name NOT IN ( ‘SQLDBA‘, ‘ReportServer‘,
‘ReportServerTempDB‘,
‘distribution‘ ) )
BEGIN
—Insert all database names into a temporary table
INSERT INTO #Database ( DatabaseName )
SELECT name
FROM sys.databases
WHERE database_id > 4
AND name NOT IN ( ‘SQLDBA‘, ‘ReportServer‘,
‘ReportServerTempDB‘,
‘distribution‘ )

—Set Variables for the detach database loop
SELECT @MinDatabaseID = MIN(ID),
@MaxDatabaseID = MAX(ID)
FROM #Database

—Begin loop to detach databases
WHILE @MinDatabaseID <= @MaxDatabaseID
BEGIN

—Get DatabaseName
SELECT @DatabaseName = DatabaseName
FROM #Database
WHERE ID = @MinDatabaseID

—Build Detach Database Command
SET @SQL = ‘EXEC sp_detach_db ‘ + ”” + @DatabaseName
+ ”” + ‘;‘

—Try Catch block to execute SQL and handle errors
BEGIN TRY

—Detach Database
EXEC ( @SQL
)
PRINT ‘Detached ‘ + @DatabaseName
END TRY
BEGIN CATCH
SELECT @DatabaseName,
message_id,
severity,
[text],
@SQL
FROM sys.messages
WHERE message_id = @@ERROR
AND language_id = 1033 —British English
END CATCH

—Get the next DatabaseName ID
SET @MinDatabaseID = @MinDatabaseID + 1

—End Loop
END
END
END

GO