sql 查询表中是不是有某个数据

Posted 2023-03-23

参考技术A select * from 表 where 字段=值

sql查询数据库中有某个值的所有表

参考技术A CREATE
PROCEDURE
dbo.FindString
@string
NVARCHAR(100)
AS
DECLARE
@SQL
NVARCHAR(4000);
SET
@SQL
=
N'
DECLARE
@str
NVARCHAR(4000);
SELECT
@str
=
ISNULL(@str
+
N''
OR
''
+
c.name
+
N''
LIKE
N''''%'
+
@string
+
'
%'''''',
c.name
+
N''
LIKE
N''''%'
+
@string
+'%'''''')
FROM
syscolumns
AS
c
JOIN
systypes
AS
t
ON
c.id=OBJECT_ID(''?'')
AND
c.xtype=t.xtype
AND
t.name
IN(''varchar'',''char'',''nvarchar'',''nchar'');
SET
@str
=
''SELECT
TOP
1
1
FROM
?
WHERE
''+@str;
CREATE
TABLE
#tb(a
int);
INSERT
#tb(a)
EXEC(@str);
IF
EXISTS(SELECT
*
FROM
#tb)
PRINT
''?''
';
EXEC
sp_MsforeachTable
@SQL;
GO
别人写的一个存储过程的例子，看看对你有没有用...