Why Rebuild Indexes? | #dailyDBA 20
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In this episode of daily DBA, I pick up 5 important #DBA related questions and give my answers! Do not forget to checkout BONUS QUESTION at the end of the video! 00:00 Performance Tuning 01:21 How to open database when archive log is missing? 07:06 Could you also explain about high water mark please? 17:33 #dba Challenge! 19:48 Why we need to rebuild the indexes? 24:39 #dba Challenge! 25:07 When you issue SELECT * FROM EMP; does it use Indexes on the table? 25:39 What is the difference between data file header and data block header? What it contains? 26:41 #dba Challenge! Bonus Question 27:15 Why can't we give DBA access to developer team? Website: https://www.dbagenesis.com/ Facebook: https://www.facebook.com/dbagenesis/ Instagram: https://www.instagram.com/dbagenesis/ Twitter: https://twitter.com/DbaGenesis
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