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jonathanlewis.wordpress.com
| | 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...
| | tonyhasler.wordpress.com
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| | When a table is accessed by multiple members of a parallel query server set, the execution plan may show the use of block range granules (PX BLOCK ITERATOR) or partition granules (PX PARTITION [RANGE|LIST|HASH] ITERATOR or PX PARTITION [RANGE|LIST|HASH] ALL). The basic ideas surrounding these concepts are discussed in numerous blogs and books, including my...
| | hourim.wordpress.com
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| | The last Jonathan Lewis post on RAC Planswhich finished by the following phrases: "If you're going to hard-code hints into a query then take a look at the outline it generates when it does the right thing, and that will tell you about the 15 or so hints you've missed out. (Better still, consider generating...
| | 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