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kerryosborne.oracle-guy.com | ||
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oracle-base.com
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| | | | | ORACLE-BASE - Flashback Data Archive (FDA) Enhancements in Oracle Database 12c Release 1 (12.1) | |
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dincosman.com
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| | | | | The performance issue with an SQL query was resolved by using the /*+ PARALLEL(2) */ hint, reducing execution time from 180-200 seconds to milliseconds. The decision to perform a direct read from disk to memory instead of reading blocks from disk was made by the database engine and is controlled by the hidden "_serial_direct_read" parameter.... | |
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jonathanlewis.wordpress.com
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| | | | | I usually think about table locks (and the meaning of the lmode and request columns in v$lock) in terms of numbers, and never seem to remember which number goes with which name - apart from mode 6 = exclusive. So I've finally put up a little list somewhere I'll always be able to find it... | |
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www.xt-r.com
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| | | ????????? ???? ????? ?? ?????? ??????, ??? ?????????? ??????????, ??????, ???????, ????? ? ??????? ??????????? ?????? : ???? ????? ????????... | ||
