一个名字叫做DB的数据库里面有20多张表，不知道具体那张表，但知道某张表有个字段叫'name'的存了一个叫'zhangsan'的名字，请问可以查出这张表的名字吗
------解决方案--------------------
查找某数据库中的列是否存在某个值
- SQL code
alter proc spFind_Column_In_DB ( @type int,--类型：1为文字类型、2为数值类型 @str nvarchar(100)--需要搜索的名字 ) as --创建临时表存放结果 create table #tbl(PK int identity primary key ,tbl sysname,col sysname) declare @tbl nvarchar(300),@col sysname,@sql nvarchar(1000) if @type=1 begin declare curTable cursor fast_forward for select '['+SCHEMA_NAME(SCHEMA_ID)+'].['+o.name+']' tableName,'['+c.name+']' columnName from sys.columns c inner join sys.objects o on c.object_id=o.object_id where o.type_desc='user_table' and user_type_id in (167,175,231,239,35,99) end else begin declare curTable cursor fast_forward for select '['+SCHEMA_NAME(SCHEMA_ID)+'].['+o.name+']' tableName,'['+c.name+']' columnName from sys.columns c inner join sys.objects o on c.object_id=o.object_id where o.type_desc='user_table' and user_type_id in (56,48,52,59,60,62,106,108,122) end open curtable fetch next from curtable into @tbl,@col while @@FETCH_STATUS=0 begin set @sql='if exists (select * from [email protected]+' where ' if @type=1 begin set @sql += @col + ' like [email protected] +'%'')' end else begin set @sql [email protected] + ' in ([email protected]+'))' end set @sql += ' INSERT #TBL(tbl,col) VALUES([email protected]+''',[email protected]+''')' --print @sql exec (@sql) fetch next from curtable into @tbl,@col end close curtable deallocate curtable select * from #tbl
------解决方案--------------------
才20多张表。死查死查也查出来了。
- SQL code
SELECT 'SELECT NAME FROM ['+ NAME+'] WHERE NAME=''张三''' FROM SYSOBJECTS S WHERE TYPE='U'AND EXISTS(SELECT 1 FROM dbo.syscolumns WHERE S.ID=ID AND NAME='NAME')
------解决方案--------------------
- SQL code
declare @id intdeclare @sql nvarchar(1000)set @id=0while exists(select 1 from syscolumns a inner join sysobjects b on a.id=b.id where a.name='name' and a.id>@id and b.type='U')beginselect top 1 @sql='select '''+b.name+''' as tbname,* from '+ b.name +' where name=''zhangsan'''from syscolumns a inner join sysobjects b on a.id=b.idwhere a.name='name' and a.id>@id and b.type='U'select @sqlexec (@sql)select top 1 @id=b.id from syscolumns a inner join sysobjects b on a.id=b.idwhere a.name='name' and a.id>@id and b.type='U' order by b.idend
------解决方案--------------------
这个ID是dbo.syscolumns的ID