ALTER COLUMN to a computed column error

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SQL

use cms ALTER TABLE product ALTER COLUMN after_discount as ([pcost]*(1-[discount]))

error:

HTML

Msg 156, Level 15, State 1, Line 1
Incorrect syntax near the keyword 'as'.

Posted 6-Oct-12 8:17am

Updated 6-Oct-12 8:27am

v2

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Zoltán Zörgő 6-Oct-12 14:48pm

Why don't you drop and than add the field? You have nothing to loose...

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Sandip.Nascar · Answer 1 · 2012-10-06T20:41:00

I agree with Zoltán Zörgő.

Computed column cannot be altered
Instead use

ALTER TABLE [product] DROP COLUMN after_discount 
GO
ALTER TABLE [product] ADD after_discount as ([pcost]*(1-[discount]))

cheers

Posted 6-Oct-12 20:41pm