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Possible Duplicate:
Add column, with default value, to existing table in SQL Server
I have a table in sql server, but want to add a extra column full of zeros
What would be the best approach to do this
att1 att2
---------
1.0 5.8
2.7 3.8
5.1 6.8
becomes
att1 att2 extra
----------------
1.0 5.8 0.0
2.7 3.8 0.0
5.1 6.8 0.0
If I recall correctly, it should be something like:
See: http://msdn.microsoft.com/en-us/library/ms190273.aspx
See: Add a column with a default value to an existing table in SQL Server