Question

Really hoping someone can help with this. I’m sure there are better ways to structure my data, but due to time constraints it would be ideal to have a solution for the current structure if possible.

I have 2 tables with the following structure:

Table 1

id  field1
1   quest1  
2   quest2
3   quest3

Table 2

id  uid  quest1  quest2  quest3
1   18   yes     no      yes
2   27   yes     no      no

Basically, I need to return table 1 with a row of table 2 (based upon uid) in the following format:

id  field1  field2
1   quest1  yes
2   quest2  no
3   quest3  yes

Is this possible at all? Looking online I keep coming across Pivot Tables and Crosstab Queries, but they don’t seem to be able to achieve what I’m after…unless I’m wrong? (which I probably am lol).

Appreciate any help anyone can give for this.

Matt

Answer 1

MySQL doesn’t support pivot tables/crosstab queries.

It has been sometimes criticized for that but the defense is that it’s a feature, not deficiency 🙂 Pivot queries belong more to the presentation layer, as what they create is not a table in database sense. So they more belong to the applictation layer that extracts the data from the database.