Oracle数据库游标连接超出解决方案数据库游标连接超出解决方案
oracle数据库忽然连不上了,一查是游标数量超了。
1.查看游标数
show parameter open_cursors
2.修改游标数
alter system set open_cursors = 10000;
3.获取打开的游标数
select o.sid, osuser, machine, count(*) num_curs
from v$open_cursor o, v$session s
where user_name = 'AF651_U8'
and o.sid = s.sid
group by o.sid, osuser, machine
order by num_curs desc;
SID OSUSER MACHINE NUM_CURS
4.查询某游标执行的sql
select q.sql_text
from v$open_cursor o, v$sql q
where q.hash_value = o.hash_value
and o.sid = 396;