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dioncho.wordpress.com | ||
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kerryosborne.oracle-guy.com
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iggyfernandez.wordpress.com
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| | | | | Dear NoCOUG members and friends, The golden rule of not tuning SQL is "operate with as little information as possible." Not only will this increase your chances of failure but it will make it difficult for others to help you. Every exercise in problem solving - no matter how little - has exactly six stages:... | |
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orastory.wordpress.com
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| | | | | There have been some interesting posts from Marcin Przepiorowski and Kerry Osborne about mapping sql plan management (spm) baselines to a corresponding sql id. The key to sql plan baselines (DBA_SQL_PLAN_BASELINES) is SIGNATURE. And why signature? It's not just another change to the key to identifying sql statements (HASH_VALUE -> (NEW_)HASH_VALUE / OLD_HASH_VALUE -> SQL_ID).... | |
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blog.jooq.org
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| | | We check execution plans and benchmark results to see if using a LIMIT clause is useful when checking for existence of N values in SQL | ||
