Why Rebuild Indexes? | #dailyDBA 20 - a podcast by Arun Kumar

from 2020-01-28T07:14:17

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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!

Questions Picked-up For This Episode:

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1. How to open database when archive log is missing?

2. Could you also explain about high water mark please?

3. Why we need to rebuild the indexes?

4. When you issue SELECT * FROM EMP; does it use Indexes on the table?

5. What is the difference between data file header and data block header? What it contains?

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