oracle中查看当前连接数

SELECT username, machine, program, status, COUNT(machine) AS 连接数量

          FROM v$session

         where machine = 'CSIXA-4343'

         GROUP BY username, machine, program, status

         ORDER BY machine

SELECT username, machine, program, status, COUNT(machine) AS 连接数量

          FROM v$session

         GROUP BY username, machine, program, status

         ORDER BY machine

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