pjcafonso (10/3/2013)
Hi allI have the following table:
CREATE TABLE usTab1
(
Col1 INT IDENTITY(1,1) NOT NULL PRIMARY KEY,
Col2 Tinyint DEFAULT (0) NOT NULL,
Col3 NVARCHAR NOT NULL
)
I must include a constraint over Col3, that column can be update only if Col2 is 0 other way don't allow.
I can do with a trigger, but I'm looking for a DDL solution directly on table.
Paulo Afonso
:crazy:
By saying update do you mean that the value for Col3 can be anything but during an update if Col2 = 0 then you can't change Col3? That can't be done with ddl. To control logic for an update like that it would have to be a trigger.
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