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

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。

我会在两个语句中做到:DROP DATABASE ??

然后创建数据库??

备份一个完全空的数据库。不需要删除所有对象，只需恢复备份。

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

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