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数据库面试题笔试题

...ionSELECT a.SID,spid, status, SUBSTR (a.program, 1, 40) prog, a.terminal,a.SQL_TEXT, osuser,VALUE / 60 / 100 VALUEFROM v$session a,v$process b, v$sesstat cWHERE c.statistic#= 12 AND c.SID = a.SID AND a.paddr = b.addrORDER BY VALUEDESC; select sql_textfrom v$sql where disk_reads> 100...