Subject | [Ticket #118] [firebird-support] Best Practice re null |
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Author | Desarrollo |
Post date | 2014-03-07T18:27:31Z |
This is a notification from the Help Desk.
On Mar 07, 2014 @ 03:27 pm, homer@... wrote:
In certain queries I wish nulls to be treated as empty strings. For example:
Select Field1 || ' ' || Field2 AS MyOutputValue;
In this example, I want the value for Field1 to be returned even if Field2 is null.
My first thought is to define a default of '' for the Domains that govern all such fields. At the moment, I can't think of a case where null values would ever be needed in those fields, but my crystal ball is not always accurate. So:
1. Is assigning a default of '' an acceptable practice?
2. Is there a better way to handle this, perhaps within the query SQL?
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