摘要：
201705251537trcsess.awk 工具，使用类似如下：awk -f trcsess.awk xxx.trc > xxx.more 1615tvdztat -i ....trc -o xxx.html201705261604select t1.pname,t1.pval1,t1.pval 阅读全文
摘要：
--先排序然后删除第n条数据delete from scott.emp where empno in (select empno from (select * from scott.emp where comm is null and rownum < 2 order by hiredate des 阅读全文