标签:pre 解释 cursor locate eal update 类型 设置 存储
SQL Server全库搜索(在所有表中查找内容)
SQL Server版本:SQL Server2008
某个内容到底存储在数据库的哪个地方?无从下手时,可以使用全库查找。
SQL Server在整个库的所有表的所有字段中查找内容,用到了临时表,游标循环。
declare @Str nvarchar(max), @tableName varchar(50), @colName varchar(50), @rowCount int select a.name tableName, b.name Colname, 0 as IsFound into #t1 from sysobjects a join syscolumns b on a.id=b.id join systypes c on b.xtype=c.xtype where a.[type]=‘U‘ and c.name in (‘varchar‘, ‘nvarchar‘, ‘char‘, ‘nchar‘) --这里是设置字段的类型,以缩小范围 declare _c1 cursor for select Colname, tableName from #t1 open _c1 fetch next from _c1 into @colName, @tableName while @@FETCH_STATUS=0 begin --print @Str select @Str=‘select @rowCount=count(1) from [‘+@tableName+‘] where [‘+@colName+‘] like ‘‘%TotalDsc%‘‘‘ --这里是要查找的内容 exec sp_executesql @Str, N‘@rowCount int output‘, @rowCount output if @rowCount>0 update #t1 set IsFound=1 where ColName=@colName and tableName=@tableName fetch next from _c1 into @colName, @tableName end close _c1 deallocate _c1 select * from #t1 where IsFound=1 drop table #t1
搜索出来的结果解释:
tableName:表名
Colname:列名
IsFound:找到的个数
再也不怕找不到在数据库的哪个地方了。
标签:pre 解释 cursor locate eal update 类型 设置 存储
原文地址:https://www.cnblogs.com/yechai/p/10997013.html