Sebastian wrote:
I have two fields: topic | title
topic does not always have data in it, so i want to select `title` when
`topic` is null..
i thought i could do this (does not work):
IF(title IS NULL, topic, title) AS heading
Thanks.
There is nothing wrong with this, as long as it is part of a complete query.
SELECT IF(title IS NULL, topic, title) AS heading FROM yourtable;
should do exactly what you say you want. Simon Garner's suggestion
SELECT IFNULL(title, topic) AS heading FROM yourtable;
should work, as well.
General advice: "does not work" is nearly useless when asking questions.
You need to describe the problem to get useful help. Show the
complete query, then tell us what went wrong. Did you get an error
message? If so, paste it in. Did you get unexpected results? If so,
show us what you got and what you expected. Also, be sure to include
the version of mysql you use, as answers often depend on the version.
Michael
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