06 2019 档案
摘要:########sample 执行计划突然变化 问题: 接受到一条信息,执行计划突然变化了。 SELECT /*+ db120190621 no_expand */ INTERNAL_KEY FROM AA.RB_bb WHERE BASE_bb_NO = :B4 AND CCY = NVL (:B
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摘要:https://carlos-sierra.net/2013/05/28/oracle-queries-are-taking-different-plans/ SQLTXPLAIN Oracle Queries are taking different Plans with 4 comments I
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