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Posted by Gordon Burditt on 06/20/05 04:39
>I'm new to PHP and I have a question that I think has a simple answer
>but I just can't figure it out so I'm really hoping that one of you
>gurus can help me out.
>
>I'm trying to return data from mysql database. I have over a thousand
>records and each record has a "type" field with values ranging from 1
>to 9.
>
>I'm setting up an html table that has 9 cells and all I want to do is
>count the total amount of types. For example, there are 140 records as
>type 1, 300 records as type 2 etc.
>
>Do I need to do 9 database querys or can this be done with one query?
select type, count(type) from mytable group by type order by type;
This has the advantage or disadvantage, depending on how you look at it,
of not returning a row for any type with NO records for it, and it also
returns rows for type 11 which is actually a mistype for type 1.
Another variant of this, good for "top 10" lists:
select type, count(type) as cnt from mytable group by type order
by cnt limit 10;
Gordon L. Burditt
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