MySQL Count If using 4 tables or Perl

Posted by user1726133 on Stack Overflow See other posts from Stack Overflow or by user1726133
Published on 2012-10-07T04:11:34Z Indexed on 2012/10/07 9:37 UTC
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Hi I have a relatively convoluted query that relies on 4 different tables, unfortunately I do not have control of this data, but I do have to query it.

I ran this simpler query and it works using just table 1 and table 2

SELECT actor, receiver, count(IF(t2.group1 = "anxiety behavior", 1,0)) AS 'anxiety'
FROM ethogram_edited_obs_behaviors t1
JOIN ethogram_behaviors            t2 on t1.behavior = t2.behavior_code
GROUP BY actor;

Below are the 4 tables I need and the query I tried that didn't work

Table 1           |   Table 2                     | Table 3         |  Table 4           
Actor | Behavior  |   Behavior | type of Behavior |  subject | sex  |  subject |subject_code
 er     frown     |   frown    anxiety behavior   |  Eric       M   |  Eric    |    er 

Here is the query that is failing

SELECT actor, count(IF(t2.group1 = "anxiety behavior", 1,0) AND(t3.sex = "M", 1,0)) AS 'anxiety',
FROM ethogram_edited_obs_behaviors t1
JOIN ethogram_behaviors            t2 on t1.behavior = t2.behavior_code
JOIN subject_code                  t3 on t1.actor    = t3.behavior_code1
JOIN subjects                      t4 on t3.subject  = t4.yerkes_code
GROUP BY actor;

Any help would be much appreciated!! Thanks :)

P.S. if this is easier to do in Perl tips also much appreciated

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