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Add a new column or create a separate table (1billion recs)

Posted By:      Posted Date: October 20, 2010    Points: 0   Category :Sql Server

One of our production table contains about 1 billion records.

There is a need to remove one column and add 2 new columns, then update them.


Should I create alter scripts for this and update the table with new values?

or create a new table and load the data from old to new, drop the 1st table and rename the 2nd one.


What should be the approach?


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