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carlos-sierra.net | ||
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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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| | | | | When upgrading a database sometime you find that one or more SQLs run slower because ofa new and suboptimal execution plan. Usually the number of those SQLs is pretty small compared to the overall workload but it's not straightforward to understand what caused the plan change so even a small number can become tricky to... | |
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mikedietrichde.com
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| | | | | HOL 19c SQL Plan Management - Instructions for the Oracle Database Upgrade 19c Hands-On Lab about how to leverage SQL Plan Management efficiently and easy | |
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jonathanlewis.wordpress.com
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| | | Following yesterday's note on SQL Profiles, someone asked how I detect that an opt_estimate hint had been used - with specific reference to the "index_scan" option. The reason for this particular choice is that other opt_estimate hints have a highly visible impact in the 10053 trace files, but this one doesn't. Here are a few... | ||
