标签：lock query 查询 orm sele 9.1 run slow 解决
select count(*) from v$lock 查询慢 解决方法，具体原因看官方优化文档哈SQL> set time on
00:51:52 SQL> select count(*) from v$lock;
COUNT(*)
----------
35
00:55:10 SQL> select /*+ rule */ count(*) from v$lock;
COUNT(*)
----------
35
00:55:38 SQL>
官方的解决方法
Query Against v$lock Run from OEM Performs Slowly (文档 ID 1328789.1)select count(*) from v$lock 查询慢
标签：lock query 查询 orm sele 9.1 run slow 解决
原文地址：http://blog.51cto.com/roidba/2349243
