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From:Peter Brawley Date:July 26 2006 1:25pm
Subject:Re: Returning results as a field name
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Pardon me, too early & not enough coffee, that's not quite the 
'max-concat trick', but it oughtta work.

PB

-----

Peter Brawley wrote:
> Mark,
> >Thanks for the start Peter. I have got that 'Pivot table using a JOIN'
> >query returning results for 2 records just like the example but I'm
> >stuck in modifying to get the result for the five questions (100 to
> >104).
> Right. The 'max-concat trick', 'Group column statistics in rows', 
> might be easier, eg...
> SELECT 
>   name,
>   MAX( IF(question=100,answer,'') ) AS Ans100, 
>   MAX( IF(question=101,answer,'') ) AS Ans101, 
>   MAX( IF(question=102,answer,'') ) AS Ans102, 
>   MAX( IF(question=103,answer,'') ) AS Ans103, 
>   MAX( IF(question=104,answer,'') ) AS And104
> FROM tbl 
> GROUP BY name
>   
> PB
>
> -----
>
> Mark Dale wrote:
>>  
>> Thanks for the start Peter. I have got that 'Pivot table using a JOIN'
>> query returning results for 2 records just like the example but I'm
>> stuck in modifying to get the result for the five questions (100 to
>> 104). 
>>
>> mysql> select * from test;
>> +-------+-------------+--------+
>> | name  | question_id | answer |
>> +-------+-------------+--------+
>> | Mark  | 100         | Yes    |
>> | Mark  | 101         | No     |
>> | Mark  | 102         | Yes    |
>> | Mark  | 103         | No     |
>> | Mark  | 104         | Yes    |
>> | Leigh | 101         | No     |
>> | Leigh | 102         | Yes    |
>> | Leigh | 103         | No     |
>> | Leigh | 104         | Yes    |
>> | Leigh | 100         | Yes    |
>> +-------+-------------+--------+
>> 10 rows in set (0.00 sec)
>>
>> Adapting the query for my table like so:
>>
>> select 
>> t1.name,
>> answer as '100',
>> t2.101 
>> from test as t1 
>> inner join (
>> select name,answer as '101' from test where question_id='101'
>> ) 
>> as t2 on t1.name=t2.name and t1.question_id='100';
>>
>> +-------+------+------+
>> | name  | 100  | 101  |
>> +-------+------+------+
>> | Mark  | Yes  | No   |
>> | Leigh | Yes  | No   |
>> +-------+------+------+
>> 2 rows in set (0.00 sec)
>>
>> Any clues to get the other questions and their answers into the table
>> greatly appreciated.
>>
>>
>> cheers
>>
>> Mark Dale
>>
>>
>> *******************************************************
>>
>> -----Original Message-----
>> From: Peter Brawley [mailto:peter.brawley@stripped] 
>> Sent: Wednesday, 26 July 2006 2:54 PM
>> To: Mark Dale
>> Subject: Re: Returning results as a field name
>>
>>   
>>> I have a simple table that outputs results like so:
>>> select name, question_id, answer from table;
>>>      +-------+--------------+---------+
>>>      |NAME   |QUESTION_ID   |ANSWER   |
>>>      +-------+--------------+---------+
>>>      |Mark	  |100	     |Yes	   |	
>>>      |Mark	  |101	     |No	   |
>>>      |Leigh  |100	     |Yes      |	
>>>      |Leigh  |101	     |No	   |
>>>      +-------+--------------+---------+	
>>> Is there a way to query things so the result looks like this:
>>>      select ???
>>>      +--------+-----------+-----------+
>>>      |NAME    |100        |101        |
>>>      +--------+-----------+-----------+
>>>      |Mark	   |Yes	   |No         |
>>>      |Leigh   |No	   |Yes	   |	
>>>      +--------+-----------+-----------+
>>>     
>>
>> Have a look at 'Pivot table using a join' at
>> http://www.artfulsoftware.com/queries.php
>>
>> PB
>>
>>
>>
>>
>>
>>   
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Thread
Returning results as a field nameMark Dale26 Jul
  • Re: Returning results as a field nameChris26 Jul
RE: Returning results as a field nameMark Dale26 Jul
  • Re: Returning results as a field namePeter Brawley26 Jul
    • Re: Returning results as a field namePeter Brawley26 Jul
      • RE: Returning results as a field nameMark Dale27 Jul