有一天,本人在想把数据库重新清理一次,结果郁闷的是没有删除数据库的权限,就更别说新建了。愁。
与是我要写一条SQL删除所有用户自定义数据表,存储过程。
执行下面的查询语句,可以得到所有包含在sys.sysobjects视图里的数据
USE AdventureWorks
SELECT *
FROM sys.sysobjects
GO
得出数据后,请注意名为type的列——这一列标明了对象的类型,也就是前面提到的24种。在这里,我用一个表格把它们列出来:
AF = Aggregate function (CLR)
C = CHECK constraint
D = DEFAULT (constraint or stand-alone)
F = FOREIGN KEY constraint
FN = SQL scalar function
FS = Assembly (CLR) scalar function
FT = Assembly (CLR) table-valued function
IF = SQL inline table-valued function
IT = Internal table
P = SQL stored procedure
PC = Assembly (CLR) stored procedure
PK = PRIMARY KEY constraint
R = Rule (old-style, stand-alone)
RF = Replication-filter-procedure
S = System base table
SN = Synonym
SQ = Service queue
TA = Assembly (CLR) DML trigger
TF = SQL table-valued-function
TR = SQL DML trigger
U = Table (user-defined)
UQ = UNIQUE constraint
V = View
X = Extended stored procedure
OK,我们要得到名称的表(用户自定义表)就是类型为“U”的对象;而sys.objects的类型为“S”。所以,为了达到我们的最终目的,SQL语句应该是——
USE AdventureWorks
SELECT name
FROM sys.sysobjects
WHERE type='U'
GO
删除表:
--20081008 技术不高,但想出名 NAME:KYE
DECLARE @Tb_Name varchar(30) --定义游标操作
DECLARE staff_cursor CURSOR FOR
SELECT [name] FROM sys.sysobjects
WHERE type='U'
-- 打开游标
OPEN staff_cursor
-- 提取记录数据
FETCH Next FROM staff_cursor Into @Tb_Name
WHILE @@fetch_status = 0
BEGIN
EXEC('DROP TABLE ' + @Tb_Name )
PRINT @Tb_Name
FETCH Next FROM staff_cursor Into @Tb_Name
END
CLOSE staff_cursor -- 关闭游标
DEALLOCATE staff_cursor -- 释放游标资源
删除存储过程:
--20081008 技术不高,但想出名 NAME:KYE
DECLARE @Sp_Name varchar(30) --定义游标操作
DECLARE @Tb_Count int
SET @Tb_Count = 0
DECLARE staff_cursor CURSOR FOR
SELECT [name] FROM sys.sysobjects
WHERE type='p' AND Category =0 --Category =0 表示
-- 打开游标
OPEN staff_cursor
-- 提取记录数据
FETCH Next FROM staff_cursor Into @Sp_Name
PRINT '开始删除存储过程'
WHILE @@fetch_status = 0
BEGIN
SET @Tb_Count = @Tb_Count + 1
EXEC('DROP PROCEDURE ' + @Sp_Name )
PRINT CONVERT(varchar(20),@Tb_Count) + ': ' + @Sp_Name
FETCH Next FROM staff_cursor Into @Sp_Name
END
print '总共删除' + CONVERT(varchar(20),@Tb_Count) + '个存储过程'
CLOSE staff_cursor -- 关闭游标
DEALLOCATE staff_cursor -- 释放游标资源
以此类推吧。呵呵。也可删除函数什么的。呵呵。
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