Does GATHER_STATS_JOB gather all objects' stats every time?
轉自：http://www.oracledatabase12g.com/archives/does-gather_stats_job-gather-all-object-stats-every-time.html 週五在一家客戶的調優會議中討論了一個由於統計信息陳舊導致SQL執行計劃偏差的問題，這是一個10g的庫並且禁用了自動收集統計信息的定時作業 GATHER_STATS_JOB；當問及應用程序
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