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Reclaim space following column drop Expand / Collapse
Posted Friday, December 13, 2013 6:44 AM


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Last Login: Tuesday, December 1, 2015 4:11 AM
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Hi all,

I've got a very large table (3M+) records with a decimal column that is too wide - it's defined as a DECIMAL(18,5), but a DECIMAL(9,3) will suffice. This should save me 4 bytes per row, but after an ALTER TABLE the space used is still the same. I know there's DBCC CLEANTABLE command to reclaim space when variable columns are changed, but does anyone how I can reclaim the space after changing the DECIMAL column?

Thanks in advance.

Post #1522667
Posted Friday, December 13, 2013 7:36 AM



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you have to rebuild all the indexes on the table, including the clustered index i believe in order to free the space to the database again.


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Post #1522691
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