ORA-12519: TNS:no appropriate service handler found 解決,ora-12519tns

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ORA-12519: TNS:no appropriate service handler found 解決,ora-12519tns
select count(*) from v$process --當前的串連數
select value from v$parameter where name = 'processes' --資料庫允許的最大串連數

修改最大串連數:
alter system set processes = 300 scope = spfile;

重啟資料庫:
shutdown immediate;
startup;

--查看當前有哪些使用者正在使用資料
SELECT osuser, a.username,cpu_time/executions/1000000||'s', sql_fulltext,machine 
from v$session a, v$sqlarea b

where a.sql_address =b.address order by cpu_time/executions desc;


需要在SQL命令符下操作

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