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09.23.2007 at 12:20AM PDT, ID: 22846750
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8.2

Access GROUP BY query with MEMO field to MySQL

Asked by VirusMinus in MySQL Server, SQL Query Syntax, Access Architecture/Design

Tags: , , , ,

I am in the process of converting my site from using MS Access to MySQL. (pats self on back :)

However I'm running into some issues with some of my queries that I'm hoping to convert to work with MySQL.

My database structure is explained here:
http://www.experts-exchange.com/Microsoft/Development/MS_Access/Access_Architecture-Design/Q_22569151.html

From the above question I got a query to work which was grouping and returning fields including a MEMO field. To get more than the 255 characters of the MEMO field I had to use the first() function to exclude the MEMO field in the GROUP by for Access. See the question below:
http://www.experts-exchange.com/Microsoft/Development/MS_Access/Access_Architecture-Design/Q_22569639.html

Now this query does not work as first() is not a valid function in MySQL, I don't know if there is an equivalent.

here's the query:

SELECT first(answers.answer_text) as answer_text,
answers.answer_id, answers.q_id, answers.member_id,
members.nick, members.total_votes, members.weemee,
SUM(IIF(IsNull(avotes.vote), 0, avotes.vote)) as votes
FROM ((answers INNER JOIN members ON answers.member_id = members.member_id)
LEFT JOIN avotes ON answers.answer_id = avotes.a_id)
WHERE answers.q_id = 250
GROUP BY answers.answer_id, answers.q_id, answers.member_id,
members.nick, members.total_votes, members.weemee

The error I get when I try and run it in the MySQL Browser:

You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '(answers.answer_text) as answer_text, answers.answer_id, answers.q_id, answers.m' at line 1

I also suspect the IIF function is not exactly the same in MySQL

Could the experts here help me work this query, or rewrite it?Start Free Trial
[+][-]09.23.2007 at 12:25AM PDT, ID: 19943741

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About this solution

Zones: MySQL Server, SQL Query Syntax, Access Architecture/Design
Tags: access, memo, field, group, mysql
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Solution Provided By: wasifg
Participating Experts: 2
Solution Grade: A
 
 
[+][-]09.23.2007 at 01:43AM PDT, ID: 19943827

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[+][-]09.23.2007 at 01:53AM PDT, ID: 19943834

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[+][-]09.24.2007 at 03:13PM PDT, ID: 19952136

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[+][-]09.03.2008 at 02:21PM PDT, ID: 22382115

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[+][-]09.08.2008 at 06:00PM PDT, ID: 22423468

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