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On Fri, Apr 8, 2022 at 7:51 AM Rob Berendt <rob@xxxxxxxxx> wrote:
COALESCE is also an option. And it might even predate IFNULL. However most people have to go to the manual to find out what that means. And it's probably even more fun to the "English as a second language" crowd.
Most people just chalk it up to the fact that programming languages
have their own jargon. Sure, some languages try harder than others to
be Englishlike, but ultimately people who use a language regularly get
used to it. Use it long enough and maybe you'll forget that it looks
weird to someone who isn't fluent in the language.
Which begs the question: Is IFNULL sql standard or should one use COALESCE?
It *raises* the question, but that has an easy answer: COALESCE is
standard and IFNULL is not. Major database systems that have IFNULL:
Db2, MySQL. Major database systems that do not: SQL Server, Oracle.
COALESCE is also more flexible in that it can accept more than two arguments.
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