摘要:
delete from Resource where Title in (select Title from Resource group by Title having count(Title) > 1) and Id not in (select min(Id) from Resource gr 阅读全文
摘要:
<!DOCTYPE html><html><head><meta charset="utf-8"><title>菜鸟教程(runoob.com)</title></head><head><script>function setCookie(cname,cvalue,exdays){ var d = 阅读全文
摘要:
mysql定时器是系统给提供了event,而oracle里面的定时器是系统给提供的job。废话少说,下面创建表: create table mytable ( id int auto_increment not null, name varchar(100) not null default '', 阅读全文