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SUM() for strings
Hi,
Is it possible to write function like SUM() but for strings?
I have a table categories with fields id, name, parent_id
and I need a query something like this:
Code:
select *, STR_SUM(categories.name) as cat_name from categories
group by categories.parent_id
where STR_SUM() - a function for string concatenation.
It has to return a list like this: 'cat1, cat2, cat3'
Thanks!
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For SQL Server you can use FOR XML PATH() statement to achieve that.
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How to do this for MySQL Server?
I'm using MySQL Server 5.5.
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