SQL里面怎么处理?麻烦指教一下,现在的SQL语句如下:
select t.*,DATE_FORMAT(psrq,'%Y-%m-%d %H:%i:%s')psrq_str,DATE_FORMAT(ddsj,'%Y-%m-%d %H:%i:%s')ddsj_str,
DATE_FORMAT(hcsj,'%Y-%m-%d %H:%i:%s')hcsj_str,DATE_FORMAT(jsyfhsj,'%Y-%m-%d %H:%i:%s')jsyfhsj_str,t1.username jsynm,(t.fhlc-t.qwlc)zgl,
t2.gdbh gdbhnm,t3.cknm mdd FROM t_gdxx_psext t LEFT JOIN sys_user t1 ON t.jsy=t1.userid LEFT JOIN t_gdxx_ps t2 on t.pspc=t2.pspc
LEFT JOIN t_ckxx t3 ON t.psdd=t3.id