摘要:
select 要使用字段1,要使用字段2 from 表名 where id in (select min(id) from 表名 group by 不重复字段名)比如: select myid,id from chat where id in (select min(id) from chat gr... 阅读全文
摘要:
错误信息:## A fatal error has been detected by the Java Runtime Environment:## SIGSEGV (0xb) at pc=0x00007fb29dce2009, pid=19297, tid=140405947455232## J... 阅读全文