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carlos-sierra.net | ||
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mauro-pagano.com
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| | | | | When talking tools to help with SQL Tuning the question on SQLTXPLAIN vs SQLd360 comes out very often. "What's the difference?", "Which one should I use?", "Why another tool?" are probably the top ones :-) I'll try to make a fair and (as much as possible) unbiased comparison between the two on some general aspects.... | |
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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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alexzeng.wordpress.com
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| | | | | Outline is the oldest way to fix SQL plan. It based on hints like use_nl etc. It's a road map. It still can be used in 11.2 although oracle said it's deprecated. Finally, it is free. SQL profile is trying to impact CBO by adding cost estimation hints. You need pay extra money to use... | |
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savvinov.com
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| | | Log parallelism is anoptimization introduced in 9.2that reduces latch contentiondue to redo copy to the log buffer by enabling multiplepublic redo buffers (or "strands"). In manycases, however, itcan cause a massivedegradation of commit performance ("log file sync" wait increase). In this blog post, I will describe the mechanism, illustrate it with test results, and discuss... | ||
