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oracle-randolf.blogspot.com | ||
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jonathanlewis.wordpress.com
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| | | | | Here's a simple detail about bind peeking (during optimisation) that makes a big difference to "fetch first/next" queries. The optimizer knows about your bind types, and can peek at the bind values - but that doesn't mean it will do something sensible with them. Here's a little model to demonstrate the problem - starting with... | |
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rwijk.blogspot.com
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iusoltsev.wordpress.com
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| | | | | ??????? ?????? ?? ??????? ??????????? 465 ??????! SELECT A.ID, A.LOGIN, A.NAME, A.LASTNAME, A.EMAIL FROM ACCOUNT A WHERE (A.LOGIN LIKE '%%') AND (A.NAME LIKE '%????????%' OR A.LASTNAME LIKE '%????????%') AND A.COMPANY_ID = 1 ORDER BY A.LOGIN ??? ???????, ????????? ???? ?? ??????? A.COMPANY_ID = 1 ???????? ??????? ???????????????? SQL> SELECT 'ALL' as "Condition", count(*) FROM ACCOUNT... | |
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www.xt-r.com
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| | | ????? ????? ???????? ? ??????? ????????????? "a member of b" ????? ???????? ??????? ?????????? ????? a in (select column_value from table(... | ||