math expression in the LIMIT clause?

[Dfly]

SELECT code, name, thumbnail, image
FROM inventory
WHERE (category_id = 6)
ORDER BY name
LIMIT ((2-1)*15) , 3

I need this query statement to have the math calculation in the LIMIT clause to adjust for the page links.

((current_page_link-1)*maxrows/pg)

It keeps getting tossed out because of the (brackets) surrounding the numbers. Is there any way to do it?

Dfly

 

[sleipnir214]

It's all in the MySQL online manual:

The LIMIT clause can be used to constrain the number of rows returned by the SELECT statement. LIMIT takes one or two numeric arguments, which must be integer constants.


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[ericbrunson]

You would have to do your calculations in your scripting language and use integers.

 

[Dfly]

The parenthesis stall out in the LIMIT clause, but are accepted in other areas of a query. I can do my calculations for the LIMIT start_pos, 3 in an auxiliary query.

SELECT (((2-1)*15)+3) AS start_pos;


I was hoping that I had something misplaced and could do it all in one query. Thank you both for your response.

Dfly