SELECT a.object_id, a.session_id, b.object_name, c.* FROM v$locked_object a, dba_objects b, v$session c WHERE a.object_id = b.object_id AND a.SESSION_ID = c.sid(+); alter system kill s
Do schools kill creativity? Link: https://www.ted.com/talks/sir_ken_robinson_do_schools_kill_creativity Speaker: Sir Ken Robinson Date: February 2006 文章目录 Do schools kill creativity?Introduct
一直在搞基础的安卓Service ,估计很多人都一样,最头疼的是Service被kill后的生命周期 先贴出服务代码: public class MyService extends Service { @Override public void onCreate() { super.onCreate(); Log.v("tag", "服务:onCreate"); }
经常会出现这样的场景:有一张3亿的表,现在要对这张表进行删除1亿行,于是有人开始运行delete from table limit 100000000; 毫无疑问这是一个愚蠢的删除方式,于是有人开始变更删除方式:delete from table where id<100000000; 然而运行一段时间后,又发现批量删除的效率可能会更高,所以kill掉了上一条运行了一段时间的sql,开始批量删除,