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，恐怕您将需要存储在master中的另一个存储过程。

我正在使用Adam Anderson编写的脚本，该脚本已更新为支持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

来源:Adam Anderson的博客文章

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'

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

尝试使用sql2012或更高版本，

这将有助于删除所选架构的所有对象

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)