在SQl Server 2005中,我是否可以通过删除所有的表和存储过程、触发器、约束以及SQl语句中的所有依赖项来清理数据库?
要求理由:
我想有一个DB脚本清理现有的DB,这不是在使用,而不是创建新的,特别是当你必须把一个请求到你的DB管理员,并等待一段时间才能完成!
在SQl Server 2005中,我是否可以通过删除所有的表和存储过程、触发器、约束以及SQl语句中的所有依赖项来清理数据库?
要求理由:
我想有一个DB脚本清理现有的DB,这不是在使用,而不是创建新的,特别是当你必须把一个请求到你的DB管理员,并等待一段时间才能完成!
当前回答
没有一种单一的说法可以用来实现这一目标。
当然,您可以自己创建一个存储过程,用于执行这些不同的管理任务。
然后可以使用这条语句执行过程。
Exec sp_CleanDatabases @DatabaseName='DBname'
其他回答
这个脚本清除所有视图,SPS,函数pk, fk和表。
/* Drop all non-system stored procs */
DECLARE @name VARCHAR(128)
DECLARE @SQL VARCHAR(254)
SELECT @name = (SELECT TOP 1 [name] FROM sysobjects WHERE [type] = 'P' AND category = 0 ORDER BY [name])
WHILE @name is not null
BEGIN
SELECT @SQL = 'DROP PROCEDURE [dbo].[' + RTRIM(@name) +']'
EXEC (@SQL)
PRINT 'Dropped Procedure: ' + @name
SELECT @name = (SELECT TOP 1 [name] FROM sysobjects WHERE [type] = 'P' AND category = 0 AND [name] > @name ORDER BY [name])
END
GO
/* Drop all views */
DECLARE @name VARCHAR(128)
DECLARE @SQL VARCHAR(254)
SELECT @name = (SELECT TOP 1 [name] FROM sysobjects WHERE [type] = 'V' AND category = 0 ORDER BY [name])
WHILE @name IS NOT NULL
BEGIN
SELECT @SQL = 'DROP VIEW [dbo].[' + RTRIM(@name) +']'
EXEC (@SQL)
PRINT 'Dropped View: ' + @name
SELECT @name = (SELECT TOP 1 [name] FROM sysobjects WHERE [type] = 'V' AND category = 0 AND [name] > @name ORDER BY [name])
END
GO
/* Drop all functions */
DECLARE @name VARCHAR(128)
DECLARE @SQL VARCHAR(254)
SELECT @name = (SELECT TOP 1 [name] FROM sysobjects WHERE [type] IN (N'FN', N'IF', N'TF', N'FS', N'FT') AND category = 0 ORDER BY [name])
WHILE @name IS NOT NULL
BEGIN
SELECT @SQL = 'DROP FUNCTION [dbo].[' + RTRIM(@name) +']'
EXEC (@SQL)
PRINT 'Dropped Function: ' + @name
SELECT @name = (SELECT TOP 1 [name] FROM sysobjects WHERE [type] IN (N'FN', N'IF', N'TF', N'FS', N'FT') AND category = 0 AND [name] > @name ORDER BY [name])
END
GO
/* Drop all Foreign Key constraints */
DECLARE @name VARCHAR(128)
DECLARE @constraint VARCHAR(254)
DECLARE @SQL VARCHAR(254)
SELECT @name = (SELECT TOP 1 TABLE_NAME FROM INFORMATION_SCHEMA.TABLE_CONSTRAINTS WHERE constraint_catalog=DB_NAME() AND CONSTRAINT_TYPE = 'FOREIGN KEY' ORDER BY TABLE_NAME)
WHILE @name is not null
BEGIN
SELECT @constraint = (SELECT TOP 1 CONSTRAINT_NAME FROM INFORMATION_SCHEMA.TABLE_CONSTRAINTS WHERE constraint_catalog=DB_NAME() AND CONSTRAINT_TYPE = 'FOREIGN KEY' AND TABLE_NAME = @name ORDER BY CONSTRAINT_NAME)
WHILE @constraint IS NOT NULL
BEGIN
SELECT @SQL = 'ALTER TABLE [dbo].[' + RTRIM(@name) +'] DROP CONSTRAINT [' + RTRIM(@constraint) +']'
EXEC (@SQL)
PRINT 'Dropped FK Constraint: ' + @constraint + ' on ' + @name
SELECT @constraint = (SELECT TOP 1 CONSTRAINT_NAME FROM INFORMATION_SCHEMA.TABLE_CONSTRAINTS WHERE constraint_catalog=DB_NAME() AND CONSTRAINT_TYPE = 'FOREIGN KEY' AND CONSTRAINT_NAME <> @constraint AND TABLE_NAME = @name ORDER BY CONSTRAINT_NAME)
END
SELECT @name = (SELECT TOP 1 TABLE_NAME FROM INFORMATION_SCHEMA.TABLE_CONSTRAINTS WHERE constraint_catalog=DB_NAME() AND CONSTRAINT_TYPE = 'FOREIGN KEY' ORDER BY TABLE_NAME)
END
GO
/* Drop all Primary Key constraints */
DECLARE @name VARCHAR(128)
DECLARE @constraint VARCHAR(254)
DECLARE @SQL VARCHAR(254)
SELECT @name = (SELECT TOP 1 TABLE_NAME FROM INFORMATION_SCHEMA.TABLE_CONSTRAINTS WHERE constraint_catalog=DB_NAME() AND CONSTRAINT_TYPE = 'PRIMARY KEY' ORDER BY TABLE_NAME)
WHILE @name IS NOT NULL
BEGIN
SELECT @constraint = (SELECT TOP 1 CONSTRAINT_NAME FROM INFORMATION_SCHEMA.TABLE_CONSTRAINTS WHERE constraint_catalog=DB_NAME() AND CONSTRAINT_TYPE = 'PRIMARY KEY' AND TABLE_NAME = @name ORDER BY CONSTRAINT_NAME)
WHILE @constraint is not null
BEGIN
SELECT @SQL = 'ALTER TABLE [dbo].[' + RTRIM(@name) +'] DROP CONSTRAINT [' + RTRIM(@constraint)+']'
EXEC (@SQL)
PRINT 'Dropped PK Constraint: ' + @constraint + ' on ' + @name
SELECT @constraint = (SELECT TOP 1 CONSTRAINT_NAME FROM INFORMATION_SCHEMA.TABLE_CONSTRAINTS WHERE constraint_catalog=DB_NAME() AND CONSTRAINT_TYPE = 'PRIMARY KEY' AND CONSTRAINT_NAME <> @constraint AND TABLE_NAME = @name ORDER BY CONSTRAINT_NAME)
END
SELECT @name = (SELECT TOP 1 TABLE_NAME FROM INFORMATION_SCHEMA.TABLE_CONSTRAINTS WHERE constraint_catalog=DB_NAME() AND CONSTRAINT_TYPE = 'PRIMARY KEY' ORDER BY TABLE_NAME)
END
GO
/* Drop all tables */
DECLARE @name VARCHAR(128)
DECLARE @SQL VARCHAR(254)
SELECT @name = (SELECT TOP 1 [name] FROM sysobjects WHERE [type] = 'U' AND category = 0 ORDER BY [name])
WHILE @name IS NOT NULL
BEGIN
SELECT @SQL = 'DROP TABLE [dbo].[' + RTRIM(@name) +']'
EXEC (@SQL)
PRINT 'Dropped Table: ' + @name
SELECT @name = (SELECT TOP 1 [name] FROM sysobjects WHERE [type] = 'U' AND category = 0 AND [name] > @name ORDER BY [name])
END
GO
还有一个样本
declare @objectId int, @objectName varchar(500), @schemaName varchar(500), @type nvarchar(30), @parentObjId int, @parentObjName nvarchar(500)
declare cur cursor
for
select obj.object_id, s.name as schema_name, obj.name, obj.type, parent_object_id
from sys.schemas s
inner join sys.sysusers u
on u.uid = s.principal_id
JOIN
sys.objects obj on obj.schema_id = s.schema_id
WHERE s.name = 'schema_name' and (type = 'p' or obj.type = 'v' or obj.type = 'u' or obj.type = 'f' or obj.type = 'fn')
order by obj.type
open cur
fetch next from cur into @objectId, @schemaName, @objectName, @type, @parentObjId
while @@fetch_status = 0
begin
if @type = 'p'
begin
exec('drop procedure ['+@schemaName +'].[' + @objectName + ']')
end
if @type = 'fn'
begin
exec('drop FUNCTION ['+@schemaName +'].[' + @objectName + ']')
end
if @type = 'f'
begin
set @parentObjName = (SELECT name from sys.objects WHERE object_id = @parentObjId)
exec('ALTER TABLE ['+@schemaName +'].[' + @parentObjName + ']' + 'DROP CONSTRAINT ' + @objectName)
end
if @type = 'u'
begin
exec('drop table ['+@schemaName +'].[' + @objectName + ']')
end
if @type = 'v'
begin
exec('drop view ['+@schemaName +'].[' + @objectName + ']')
end
fetch next from cur into @objectId, @schemaName, @objectName, @type, @parentObjId
end
close cur
deallocate cur
我在这里尝试了一些脚本,但它们不适合我,因为我的表是模式中的。所以我整理了以下内容。注意,这个脚本接受一个模式列表,然后按顺序删除。您需要确保您的模式有一个完整的顺序。如果存在任何循环依赖关系,那么它将失败。
PRINT 'Dropping whole database'
GO
------------------------------------------
-- Drop constraints
------------------------------------------
DECLARE @Sql NVARCHAR(500) DECLARE @Cursor CURSOR
SET @Cursor = CURSOR FAST_FORWARD FOR
SELECT DISTINCT sql = 'ALTER TABLE ['+tc2.CONSTRAINT_SCHEMA+'].[' + tc2.TABLE_NAME + '] DROP [' + rc1.CONSTRAINT_NAME + ']'
FROM INFORMATION_SCHEMA.REFERENTIAL_CONSTRAINTS rc1
LEFT JOIN INFORMATION_SCHEMA.TABLE_CONSTRAINTS tc2 ON tc2.CONSTRAINT_NAME =rc1.CONSTRAINT_NAME
OPEN @Cursor FETCH NEXT FROM @Cursor INTO @Sql
WHILE (@@FETCH_STATUS = 0)
BEGIN
PRINT @Sql
Exec (@Sql)
FETCH NEXT FROM @Cursor INTO @Sql
END
CLOSE @Cursor DEALLOCATE @Cursor
GO
------------------------------------------
-- Drop views
------------------------------------------
DECLARE @sql VARCHAR(MAX) = ''
, @crlf VARCHAR(2) = CHAR(13) + CHAR(10) ;
SELECT @sql = @sql + 'DROP VIEW ' + QUOTENAME(SCHEMA_NAME(schema_id)) + '.' + QUOTENAME(v.name) +';' + @crlf
FROM sys.views v
PRINT @sql;
EXEC(@sql);
GO
------------------------------------------
-- Drop procs
------------------------------------------
PRINT 'Dropping all procs ...'
GO
DECLARE @sql VARCHAR(MAX) = ''
, @crlf VARCHAR(2) = CHAR(13) + CHAR(10) ;
SELECT @sql = @sql + 'DROP PROC ' + QUOTENAME(SCHEMA_NAME(p.schema_id)) + '.' + QUOTENAME(p.name) +';' + @crlf
FROM [sys].[procedures] p
PRINT @sql;
EXEC(@sql);
GO
------------------------------------------
-- Drop tables
------------------------------------------
PRINT 'Dropping all tables ...'
GO
EXEC sp_MSForEachTable 'DROP TABLE ?'
GO
------------------------------------------
-- Drop sequences
------------------------------------------
PRINT 'Dropping all sequences ...'
GO
DECLARE @DropSeqSql varchar(1024)
DECLARE DropSeqCursor CURSOR FOR
SELECT DISTINCT 'DROP SEQUENCE ' + s.SEQUENCE_SCHEMA + '.' + s.SEQUENCE_NAME
FROM INFORMATION_SCHEMA.SEQUENCES s
OPEN DropSeqCursor
FETCH NEXT FROM DropSeqCursor INTO @DropSeqSql
WHILE ( @@FETCH_STATUS <> -1 )
BEGIN
PRINT @DropSeqSql
EXECUTE( @DropSeqSql )
FETCH NEXT FROM DropSeqCursor INTO @DropSeqSql
END
CLOSE DropSeqCursor
DEALLOCATE DropSeqCursor
GO
------------------------------------------
-- Drop Schemas
------------------------------------------
DECLARE @schemas as varchar(1000) = 'StaticData,Ird,DataImport,Collateral,Report,Cds,CommonTrade,MarketData,TypeCode'
DECLARE @schemasXml as xml = cast(('<schema>'+replace(@schemas,',' ,'</schema><schema>')+'</schema>') as xml)
DECLARE @Sql NVARCHAR(500) DECLARE @Cursor CURSOR
SET @Cursor = CURSOR FAST_FORWARD FOR
SELECT sql = 'DROP SCHEMA ['+schemaName+']' FROM
(SELECT CAST(T.schemaName.query('text()') as VARCHAR(200)) as schemaName FROM @schemasXml.nodes('/schema') T(schemaName)) as X
JOIN information_schema.schemata S on S.schema_name = X.schemaName
OPEN @Cursor FETCH NEXT FROM @Cursor INTO @Sql
WHILE (@@FETCH_STATUS = 0)
BEGIN
PRINT @Sql
Exec (@Sql)
FETCH NEXT FROM @Cursor INTO @Sql
END
CLOSE @Cursor DEALLOCATE @Cursor
GO
我今晚不小心在我的主数据库上运行了一个db初始化脚本。不管怎样,我很快就碰到了这个话题。我使用:exec sp_MSforeachtable 'DROP TABLE ?'回答,但必须多次执行它,直到它没有错误(依赖)。在此之后,我偶然发现了一些其他线程,并将其拼凑在一起以删除所有存储过程和函数。
DECLARE mycur CURSOR FOR select O.type_desc,schema_id,O.name
from
sys.objects O LEFT OUTER JOIN
sys.extended_properties E ON O.object_id = E.major_id
WHERE
O.name IS NOT NULL
AND ISNULL(O.is_ms_shipped, 0) = 0
AND ISNULL(E.name, '') <> 'microsoft_database_tools_support'
AND ( O.type_desc = 'SQL_STORED_PROCEDURE' OR O.type_desc = 'SQL_SCALAR_FUNCTION' )
ORDER BY O.type_desc,O.name;
OPEN mycur;
DECLARE @schema_id int;
DECLARE @fname varchar(256);
DECLARE @sname varchar(256);
DECLARE @ftype varchar(256);
FETCH NEXT FROM mycur INTO @ftype, @schema_id, @fname;
WHILE @@FETCH_STATUS = 0
BEGIN
SET @sname = SCHEMA_NAME( @schema_id );
IF @ftype = 'SQL_STORED_PROCEDURE'
EXEC( 'DROP PROCEDURE "' + @sname + '"."' + @fname + '"' );
IF @ftype = 'SQL_SCALAR_FUNCTION'
EXEC( 'DROP FUNCTION "' + @sname + '"."' + @fname + '"' );
FETCH NEXT FROM mycur INTO @ftype, @schema_id, @fname;
END
CLOSE mycur
DEALLOCATE mycur
GO
DECLARE @name VARCHAR(255)
DECLARE @type VARCHAR(10)
DECLARE @prefix VARCHAR(255)
DECLARE @sql VARCHAR(255)
DECLARE curs CURSOR FOR
SELECT [name], xtype
FROM sysobjects
WHERE xtype IN ('U', 'P', 'FN', 'IF', 'TF', 'V', 'TR') -- Configuration point 1
ORDER BY name
OPEN curs
FETCH NEXT FROM curs INTO @name, @type
WHILE @@FETCH_STATUS = 0
BEGIN
-- Configuration point 2
SET @prefix = CASE @type
WHEN 'U' THEN 'DROP TABLE'
WHEN 'P' THEN 'DROP PROCEDURE'
WHEN 'FN' THEN 'DROP FUNCTION'
WHEN 'IF' THEN 'DROP FUNCTION'
WHEN 'TF' THEN 'DROP FUNCTION'
WHEN 'V' THEN 'DROP VIEW'
WHEN 'TR' THEN 'DROP TRIGGER'
END
SET @sql = @prefix + ' ' + @name
PRINT @sql
EXEC(@sql)
FETCH NEXT FROM curs INTO @name, @type
END
CLOSE curs
DEALLOCATE curs