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rwijk.blogspot.com | ||
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blog.yannickjaquier.com
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| | | | JSON datatype has been introduced with Oracle database 21c. Is promising JSON performance worth moving your column to this new datatype ? | |
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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.dbaglobe.com
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| | | | A blog about on new technologie. Hands-on note about Hadoop, Cloudera, Hortonworks, NoSQL, Cassandra, Neo4j, MongoDB, Oracle, SQL Server, Linux, etc. | |
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mauro-pagano.com
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| | Most of the overall database performance issues (not caused by SQL tuning) are prettycomplex to setup because they require a workload and it takes quite some work to reproduce concurrency in a test environment where at best you got a couple folks testing some new code. Nowadays there are ways to reproduce a realistic workload... |