|Subject||RE: [firebird-support] Domains in computed columns|
> AFAIK you cant specify a type for a computed field.If that's correct, then the question becomes "why can I specify a type
as in the first example?"
[mailto:firstname.lastname@example.org] On Behalf Of Alexandre Benson
Sent: Wednesday, March 04, 2009 5:06 PM
Subject: Re: [firebird-support] Domains in computed columns
Rick Debay wrote:
> If I define a computed column with an explicit data type, it works:AFAIK you cant specify a type for a computed field.
> FIELD_NAME DECIMAL(5,2) COMPUTED BY (...some formula...)
> If I use a domain name, I get an error message:
> ISC ERROR CODE:335544569
> ISC ERROR MESSAGE:
> Dynamic SQL Error
> SQL error code = -104
> Token unknown - line 21, char 24
> FIELD_NAME DOMAIN_NAME COMPUTED BY (...some formula...)
> Is this the expected behavior?
But you can cast it to the desired type.
FIELD_NAME COMPUTED BY (cast(...some formula... as DECIMAL(5,2)))
see you !
Alexandre Benson Smith
THOR Software e Comercial Ltda
Santo Andre - Sao Paulo - Brazil
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