有什么方法可以通过删除所有表并删除一个 SQL 语句中的存储过程、触发器、约束和所有依赖项来清理 SQl Server 2005 中的数据库?
请求的理由:
我想要一个数据库脚本来清理现有的未使用的数据库,而不是创建新的数据库,特别是当您必须向数据库管理员提出请求并等待一段时间才能完成时!
此脚本清除所有视图、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
我正在使用 Adam Anderson 的这个脚本,更新后支持 dbo 以外的其他模式中的对象。
declare @n char(1)
set @n = char(10)
declare @stmt nvarchar(max)
-- procedures
select @stmt = isnull( @stmt + @n, '' ) +
'drop procedure [' + schema_name(schema_id) + '].[' + name + ']'
from sys.procedures
-- check constraints
select @stmt = isnull( @stmt + @n, '' ) +
'alter table [' + schema_name(schema_id) + '].[' + object_name( parent_object_id ) + '] drop constraint [' + name + ']'
from sys.check_constraints
-- functions
select @stmt = isnull( @stmt + @n, '' ) +
'drop function [' + schema_name(schema_id) + '].[' + name + ']'
from sys.objects
where type in ( 'FN', 'IF', 'TF' )
-- views
select @stmt = isnull( @stmt + @n, '' ) +
'drop view [' + schema_name(schema_id) + '].[' + name + ']'
from sys.views
-- foreign keys
select @stmt = isnull( @stmt + @n, '' ) +
'alter table [' + schema_name(schema_id) + '].[' + object_name( parent_object_id ) + '] drop constraint [' + name + ']'
from sys.foreign_keys
-- tables
select @stmt = isnull( @stmt + @n, '' ) +
'drop table [' + schema_name(schema_id) + '].[' + name + ']'
from sys.tables
-- user defined types
select @stmt = isnull( @stmt + @n, '' ) +
'drop type [' + schema_name(schema_id) + '].[' + name + ']'
from sys.types
where is_user_defined = 1
exec sp_executesql @stmt
Source: an Adam Anderson blog post
-- system-versioned tables SELECT @stmt = isnull(@stmt + CHAR(10), '') + 'alter table [' + schema_name(schema_id) + '].[' + name + '] SET ( SYSTEM_VERSIONING = OFF)' FROM sys.tables WHERE TEMPORAL_TYPE = 2;
最好的办法是“为 Drop 生成脚本”
选择数据库 -> 右键单击 -> 任务 -> 生成脚本 - 将打开生成脚本的向导
在设置脚本选项中选择对象后单击高级按钮
-> 将选项“要创建的脚本”设置为 true(想要创建)
-> 将选项 'Script to Drop' 设置为 true(想要删除)
-> 选中复选框以选择希望创建脚本的对象
-> 选择编写脚本的选项(文件、新窗口、剪贴板)
它默认包含依赖对象。(首先会删除约束)执行脚本
这样我们就可以自定义我们的脚本了。
要删除所有表:
exec sp_MSforeachtable 'DROP TABLE ?'
当然,这将删除除存储过程之外的所有约束、触发器等。
对于存储过程,恐怕您将需要另一个存储在 master
中的存储过程。
stored procedures
等。
我会在两个语句中做到这一点:DROP DATABASE ???
我在这里尝试了一些脚本,但它们对我不起作用,因为我的表在模式中。所以我整理了以下。请注意,此脚本采用模式列表,然后按顺序删除。您需要确保在您的模式中有完整的排序。如果有任何循环依赖,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
这是我尝试过的:
SELECT 'DROP TABLE [' + SCHEMA_NAME(schema_id) + '].[' + name + ']' FROM sys.tables
它将打印什么输出,只需复制所有内容并粘贴到新查询中,然后按执行。这将删除所有表。
备份一个完全空的数据库。无需删除所有对象,只需恢复备份即可。
今晚我不小心对我的主数据库运行了一个 db init 脚本。无论如何,我很快就遇到了这个线程。我使用了: exec sp_MSforeachtable 'DROP TABLE ?'答案,但必须多次执行它,直到它没有错误(依赖关系)。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
尝试这个
Select 'ALTER TABLE ' + Table_Name +' drop constraint ' + Constraint_Name from Information_Schema.CONSTRAINT_TABLE_USAGE
Select 'drop Procedure ' + specific_name from Information_Schema.Routines where specific_name not like 'sp%' AND specific_name not like 'fn_%'
Select 'drop View ' + table_name from Information_Schema.tables where Table_Type = 'VIEW'
SELECT 'DROP TRIGGER ' + name FROM sysobjects WHERE type = 'tr'
Select 'drop table ' + table_name from Information_Schema.tables where Table_Type = 'BASE TABLE'
除了@Ivan 的回答,所有类型都需要包含在内
/* Drop all Types */
DECLARE @name VARCHAR(128)
DECLARE @SQL VARCHAR(254)
SELECT @name = (SELECT TOP 1 [name] FROM sys.types where is_user_defined = 1 ORDER BY [name])
WHILE @name IS NOT NULL
BEGIN
SELECT @SQL = 'DROP TYPE [dbo].[' + RTRIM(@name) +']'
EXEC (@SQL)
PRINT 'Dropped Type: ' + @name
SELECT @name = (SELECT TOP 1 [name] FROM sys.types where is_user_defined = 1 AND [name] > @name ORDER BY [name])
END
GO
您必须先禁用所有 triggers
和 constraints
。
EXEC sp_MSforeachtable @command1="ALTER TABLE ? NOCHECK CONSTRAINT ALL"
EXEC sp_MSforeachtable @command1="ALTER TABLE ? DISABLE TRIGGER ALL"
之后,您可以生成用于删除对象的脚本
SELECT 'Drop Table '+name FROM sys.tables WHERE type='U';
SELECT 'Drop Procedure '+name FROM sys.procedures WHERE type='P';
执行生成的语句。
要删除 oracle 中的所有对象:
1) 动态
DECLARE
CURSOR IX IS
SELECT * FROM ALL_OBJECTS WHERE OBJECT_TYPE ='TABLE'
AND OWNER='SCHEMA_NAME';
CURSOR IY IS
SELECT * FROM ALL_OBJECTS WHERE OBJECT_TYPE
IN ('SEQUENCE',
'PROCEDURE',
'PACKAGE',
'FUNCTION',
'VIEW') AND OWNER='SCHEMA_NAME';
CURSOR IZ IS
SELECT * FROM ALL_OBJECTS WHERE OBJECT_TYPE IN ('TYPE') AND OWNER='SCHEMA_NAME';
BEGIN
FOR X IN IX LOOP
EXECUTE IMMEDIATE('DROP '||X.OBJECT_TYPE||' '||X.OBJECT_NAME|| ' CASCADE CONSTRAINT');
END LOOP;
FOR Y IN IY LOOP
EXECUTE IMMEDIATE('DROP '||Y.OBJECT_TYPE||' '||Y.OBJECT_NAME);
END LOOP;
FOR Z IN IZ LOOP
EXECUTE IMMEDIATE('DROP '||Z.OBJECT_TYPE||' '||Z.OBJECT_NAME||' FORCE ');
END LOOP;
END;
/
2)静态
SELECT 'DROP TABLE "' || TABLE_NAME || '" CASCADE CONSTRAINTS;' FROM user_tables
union ALL
select 'drop '||object_type||' '|| object_name || ';' from user_objects
where object_type in ('VIEW','PACKAGE','SEQUENCE', 'PROCEDURE', 'FUNCTION')
union ALL
SELECT 'drop '
||object_type
||' '
|| object_name
|| ' force;'
FROM user_objects
WHERE object_type IN ('TYPE');
用sql2012或更高版本试试这个,
这将有助于按所选模式删除所有对象
DECLARE @MySchemaName VARCHAR(50)='dbo', @sql VARCHAR(MAX)='';
DECLARE @SchemaName VARCHAR(255), @ObjectName VARCHAR(255), @ObjectType VARCHAR(255), @ObjectDesc VARCHAR(255), @Category INT;
DECLARE cur CURSOR FOR
SELECT (s.name)SchemaName, (o.name)ObjectName, (o.type)ObjectType,(o.type_desc)ObjectDesc,(so.category)Category
FROM sys.objects o
INNER JOIN sys.schemas s ON o.schema_id = s.schema_id
INNER JOIN sysobjects so ON so.name=o.name
WHERE s.name = @MySchemaName
AND so.category=0
AND o.type IN ('P','PC','U','V','FN','IF','TF','FS','FT','PK','TT')
OPEN cur
FETCH NEXT FROM cur INTO @SchemaName,@ObjectName,@ObjectType,@ObjectDesc,@Category
SET @sql='';
WHILE @@FETCH_STATUS = 0 BEGIN
IF @ObjectType IN('FN', 'IF', 'TF', 'FS', 'FT') SET @sql=@sql+'Drop Function '+@MySchemaName+'.'+@ObjectName+CHAR(13)
IF @ObjectType IN('V') SET @sql=@sql+'Drop View '+@MySchemaName+'.'+@ObjectName+CHAR(13)
IF @ObjectType IN('P') SET @sql=@sql+'Drop Procedure '+@MySchemaName+'.'+@ObjectName+CHAR(13)
IF @ObjectType IN('U') SET @sql=@sql+'Drop Table '+@MySchemaName+'.'+@ObjectName+CHAR(13)
--PRINT @ObjectName + ' | ' + @ObjectType
FETCH NEXT FROM cur INTO @SchemaName,@ObjectName,@ObjectType,@ObjectDesc,@Category
END
CLOSE cur;
DEALLOCATE cur;
SET @sql=@sql+CASE WHEN LEN(@sql)>0 THEN 'Drop Schema '+@MySchemaName+CHAR(13) ELSE '' END
PRINT @sql
--EXECUTE (@sql)
对我来说似乎是一个相当危险的功能。如果您实施这样的事情,我会确保以某种方式妥善保护它,您将无法在每次事故中运行它。
正如之前建议的那样,您可以自己制作某种存储过程。在 SQL Server 2005 中,您可以查看此系统表以确定并找到您想要删除的对象。
select * from sys.objects
在这里我找到了删除所有 sp、函数和触发器的新查询
declare @procName varchar(500)
declare cur cursor
for select [name] from sys.objects where type = 'p'
open cur
fetch next from cur into @procName
while @@fetch_status = 0
begin
exec('drop procedure ' + @procName)
fetch next from cur into @procName
end
close cur
deallocate cur
为了补充 Ivan 的答案,我还需要删除所有用户定义的类型,因此我将其添加到脚本中:
/* Drop all user-defined types */
DECLARE @name VARCHAR(128)
DECLARE @SQL VARCHAR(254)
SELECT @name = (select TOP 1 [name] from sys.types where is_user_defined = 1)
WHILE @name IS NOT NULL
BEGIN
SELECT @SQL = 'DROP TYPE [dbo].[' + RTRIM(@name) +']'
EXEC (@SQL)
PRINT 'Dropped Type: ' + @name
SELECT @name = (select TOP 1 [name] from sys.types where is_user_defined = 1)
END
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
再来一份样品
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
尝试这个....
USE DATABASE
GO
DECLARE @tname VARCHAR(150)
DECLARE @strsql VARCHAR(300)
SELECT @tname = (SELECT TOP 1 [name] FROM sys.objects WHERE [type] = 'U' and [name] like N'TableName%' ORDER BY [name])
WHILE @tname IS NOT NULL
BEGIN
SELECT @strsql = 'DROP TABLE [dbo].[' + RTRIM(@tname) +']'
EXEC (@strsql)
PRINT 'Dropped Table : ' + @tname
SELECT @tname = (SELECT TOP 1 [name] FROM sys.objects WHERE [type] = 'U' AND [name] like N'TableName%' AND [name] > @tname ORDER BY [name])
END
没有单一的陈述可以用来实现这一目标。
您当然可以为自己创建一个 stored procedure
,您可以使用它来执行这些不同的管理任务。
然后,您可以使用这条语句执行该过程。
Exec sp_CleanDatabases @DatabaseName='DBname'
sp_CleanDatabases
函数的内容。
如果您正在开发,另一种选择是:
DROP SCHEMA public CASCADE;
CREATE SCHEMA public;