试试这个

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'

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

除了@Ivan的回答外，还需要包括所有类型

    /* 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

您必须首先禁用所有触发器和约束。

EXEC sp_MSforeachtable @command1="ALTER TABLE ? NOCHECK CONSTRAINT ALL"

EXEC sp_MSforeachtable @command1="ALTER TABLE ? DISABLE TRIGGER ALL"

在此之后，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。

最好的方法是“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set Scripting选项中选择对象后，单击高级按钮

设置选项“Script to create”为true(想要创建) 设置选项“Script to Drop”为true(想要删除) ->选中复选框，选择要创建脚本的对象 ->选择写脚本的选项(文件，新建窗口，剪贴板) 默认情况下，它包含依赖对象。(并将首先删除约束) 执行脚本

这样我们就可以自定义脚本。

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