Can I perform indexing on more than one database at a time in SQL server

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I am performing CHECKDB, INDEXING, Update STATISTICS on DB.
I have multiple DB on my instance.
so Can i Perform CHECKDB Simultaneously(AT Same time) on Multiple DB. using different query windows.
I have 3 databases Sales_Data, HISTORY, APP_BANK each of size near by 800 GB.
Can I perform CheckDB at a time for all databases.
in one query windows

use Sales_Data
DBCC CHECKDB()

in another Query Windows

>use HISTORY
DBCC CHECKDB()

in next query window

use APP_BANK 
DBCC CHECKDB()

and run all three windows simultaneous (at a time).
what will impact on server performance

also Can i Perform same for Indexing, and update statics.

What I have tried:

I am new in this profession so dont know impact of above on server performance (memory utilization, CPU utilization)
kindly help me

Posted 13-Dec-19 22:45pm

paul_vin

Updated 13-Dec-19 23:14pm

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phil.o · Answer 1 · 2019-12-13T23:15:00

Solution 1

It could be theorically done, but would only be useful if the three databases are on separate physical drives. And there is a great chance that it will indeed impact server performance; knowing exactly how much is another story though, as it depends on so many factors.

Posted 13-Dec-19 23:15pm

phil.o