oracle时间转成字符串,oracle时间怎么转字符串
工作中编写过的一条语句select * from Bt_Holiday whereto_char(Setting_DATE,'YYYY')=Substr('2015-03-00',1,4) ANDto_char(Setting_DATE,'MM')=Substr('2015-03-00',6, (instr('2015-03-00','-',1,2))-(instr('2015-03-00','-...