Getting space back after manually deleting records

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Getting space back after manually deleting records

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chilidogie

Posted Tuesday, October 16, 2012 12:45 PM

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We have a database with lab tests that we are going to merge with a different database. The original has 8,000,000 records. The new one can only bring in 100,000 at a time. I am copying the database, then deleting down to 100,000 records. However, the space on disk remains the same. Do I need to pack the database somehow to regain the space ?

Thanx !

Post #1373473

Jeff Moden

Posted Tuesday, October 16, 2012 4:09 PM

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chilidogie (10/16/2012)

Yes. Rebuild the clustered index to recover the table space and rebuild the non-clustered indexes to regain the index space.

--Jeff Moden

"RBAR is pronounced "ree-bar" and is a "Modenism" for "Row-By-Agonizing-Row".

First step towards the paradigm shift of writing Set Based code:
Stop thinking about what you want to do to a row... think, instead, of what you want to do to a column."

For better, quicker answers on T-SQL questions, click on the following...
http://www.sqlservercentral.com/articles/Best+Practices/61537/

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http://www.sqlservercentral.com/articles/SQLServerCentral/66909/

Post #1373565

chilidogie

Posted Thursday, October 18, 2012 8:48 AM

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Thanx Greatly !!!!

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John Mitchell-245523

Posted Friday, October 19, 2012 1:33 AM

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If you want to release space on disk then you need to shrink the database. See DBCC SHRINKDATABASE. Beware, though - if your database is likely to grow again then you're wasting resources by shrinking it, as well as causing internal and external fragmentation.

John

Post #1374665

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