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    SQL全站搜索


    create proc
    Full_Search(@string varchar(50))
    as
    begin

    declare @tbname
    varchar(50)
    declare tbroy cursor for select name from sysobjects
    where
    xtype= 'u ' --第一个游标遍历所有的表

    open tbroy
    fetch next from tbroy into
    @tbname
    while @@fetch_status=0
    begin

    declare @colname
    varchar(50)
    declare colroy cursor for select name from syscolumns
    where
    id=object_id(@tbname) and xtype in (
    select xtype from systypes
    where
    name in ( 'varchar ', 'nvarchar ', 'char ', 'nchar ') --数据类型为字符型的字段
    )
    --第二个游标是第一个游标的嵌套游标,遍历某个表的所有字段

    open colroy
    fetch next from colroy
    into @colname
    while @@fetch_status=0
    begin

    declare @sql
    nvarchar(1000),@j int
    select @sql= 'select @i=count(1) from ' +@tbname + '
    where '+ @colname+ ' like '+ '''%'+@string+ '%'''
    exec sp_executesql
    @sql,N'@i int output',@i=@j output --输出满足条件表的记录数
    if @j> 0
    BEGIN

    select 包含字串的表名=@tbname
    --exec( 'select distinct '+@colname+' from '
    +@tbname + ' where '+ @colname+ ' like '+ '''%'+@string+ '%''')
    END

    fetch next from colroy into @colname
    end

    close colroy

    deallocate colroy

    fetch next from tbroy into @tbname
    end

    close tbroy
    deallocate tbroy
    end
    go

    exec Full_Search
    '搜索关键字'
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  • 原文地址:https://www.cnblogs.com/dullbaby/p/3260245.html
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