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Alter table alter column Syntax
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À
15/03/2024 13:29:08
Information générale
Forum:
Microsoft SQL Server
Catégorie:
Conception bases de données
Divers
Thread ID:
01687733
Message ID:
01687735
Vues:
24
>>Hi,
>>
>>I am testing the following Alter command (in SSMS)
>>
>>alter TableName Alter ColumnName numeric (12,2) not null
>>
>>The result I get is what I want: the column size changes, it is not null, and The Default is set to 0 (which I did not specify above).
>>Is Default set to 0 (zero) by design because my expressing says Not Null?
>>
>>TIA
>
>If you have set DEFAULT before altering the column usually must drop the constraint, alter column and then put the constraint back.
>I got to many errors from different versions of SQL Server when I tried to alter columns so I choose this approach.
>Maybe different versions handle this differently but I don't risk anymore.

The column had the DEFAULT set before I made the change of the column size. And I do prefer not to change the default. Do I understand correctly that the DEFAULT will stay the way it was before I change the size?
Thank you.
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