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jonathanlewis.wordpress.com | ||
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www.dbaglobe.com
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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www.bobbydurrettdba.com
We have been discussing query tuning at work and I've come back to an example of the Oracle optimizer choosing the wrong plan due to an error in its calculation of the number of rows returned... |
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tanelpoder.com
As I promised in my previous post, I'm going to blog more frequently for a change. So here's a blog entry about some "new" Oracle execution plan displaying scripts that I've had since 2011 or so - I just tidied them up recently and added some improvements too. My aim in this blog post is not to go deep into SQL tuning topics, but just show what these scripts can do. - Linux, Oracle, SQL performance tuning and troubleshooting - consulting & training. |
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www.xt-r.com
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