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Richard KortsFlag for United States of America asked on

MySQL Query

What is wrong with this:

(SELECT * from wot_head order by date desc) UNION (SELECT * from wo_head order by date desc)

It returns the right result but they are NOT ordered by the column date.

Both tables have identical columns, both have a column named date
MySQL Server

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Richard Korts

8/22/2022 - Mon
Dave Baldwin

I don't see that you are ordering the complete results, just the two different ones that you are JOINing. Maybe try..

(SELECT * from wot_head) UNION (SELECT * from wo_head )  ORDER BY date desc
Richard Korts

To DaveBaldwin

There is an order by clause after BOTH selects. It's not capitalized, does that matter?

Or is MySQL confused because there are two date columns? Do I have to specify which date field in which table (ie, order by wot_head.date)?

Oh maybe I have to put the order by AFTER the UNION business?
Dave Baldwin

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Lawrence Barnes

What Dave said...

Change to:
SELECT * from wot_head
SELECT * from wo_head
order by date desc
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James Murphy
Richard Korts

Thanks, Dave.