Article View: borland.public.interbase.sql
Article #320Re: debug stored procedures
From: Bill Todd [TeamB]
Date: Tue, 20 May 2008 00:42
Date: Tue, 20 May 2008 00:42
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1388 bytes
Isaac wrote: > why when I sum a value with a variable hold a null value the result > evaluate to null not the first value ?? Because the SQL standard says that null + anything is null. Null is not a value. Null is a state indicating that there is no value. All SQL compliant databases work this way. -- Bill Todd (TeamB)
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From: "Bill Todd [TeamB]" <no@no.com>
Subject: Re: debug stored procedures
Newsgroups: borland.public.interbase.sql
References: <4831f162@newsgroups.borland.com> <4831f280@newsgroups.borland.com> <4831f42a@newsgroups.borland.com>
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Date: 19 May 2008 17:42:52 -0700
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