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Database Administration (MOSC)

What is the best way to find out fragmentation on table

Oct 9, 2012 9:19AM edited Oct 9, 2012 10:25PM in Database Administration (MOSC) 4 commentsAnswered

What is the best way to find out fragmentation on table, index and tablespace level and what is best way to defragment it.

Can we run the defragment commands online when users are active.

Does it hold any lock on the database?

Does it impact the database performance?

3

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