ORACLE 檢視當前連線數、修改最大連線數相關SQL或命令
阿新 • • 發佈:2019-01-27
SQL:
1. 檢視當前的資料庫連線數
select count(*) fromv$processselect count(*) from v$process where program=‘Oracle.EXE(SHAD)’;
select value from v$parameter where name ='processes'
3. 檢視當前有哪些使用者正在使用資料
SELECT osuser, a.username,cpu_time/executions/1000000||'s',b.sql_text,machine
from v$session a, v$sqlareab
where a.sql_address =b.address order by cpu_time/executionsdesc;
4. 檢視當前的session連線數
select count(*) fromv$session
5. 檢視併發連線數
select count(*) from v$session where status='ACTIVE'
命令:
show parameter processes
2. 修改最大連線數
alter system set processes = 300 scope = spfile;
shutdown immediate;
startup;