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jonathanlewis.wordpress.com | ||
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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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sqlmaria.com
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| | | | At the recent OUG Ireland conference I had the privilege of participating in a panel discussion on the Oracle Database. During the course of the session the topic of Optimizer histograms came up. A... | |
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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... | |
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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... |