[推荐] (SqlServer)分离所有用户数据库
——通过知识共享树立个人品牌。
在实际应用中，有时我们需要一次性分离所有用户数据库，下面给出代码，供大家参考。
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
