日期:2014-05-17 浏览次数:20784 次
引用: SQL code?1234567891011select mc,sum(jlength)jlength,sum(dlength)dlengthfrom (select x.mc, sum(j.length)jlength,0 dlength from res_xl_gdgx x , res_jkx_info j where substr(j.ss……