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SQL Performance Tips

@sqlperftips

Tips to get best SQL performance.
Covering all major SQL databases.
sql-performance-explained.com is my book.

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linkhttp://SQL-Performance-Explained.com/l/ calendar_today24-04-2011 06:36:45

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SQL Performance Tips
@sqlperftips

a year ago

The Oracle DB maintains some information either on block or on row level ([NO]ROWDEPENDENCIES). dbaora.com/ora_rowscn-nor… The default (NOROWDEPENDENCIES) may cause ORA-08177: can't serialize access for this transaction even if there is no problem on row level.