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select * where value>1
Posted by: yuval halpern
Date: August 24, 2011 04:17PM

Im learning php and mysql while building a website for composers.
I have 2 questions.
I have a table with the following columns
instrument1,instrument2, instrument3etc.

the table will look like this
ID| instrument1|instrument2|instrument3|etc....
1 | 0 | 1 | 0 |
2 | 2 | 0 | 1 |

I would like to select a row according to ID but also checking if the instruments value is =>1.
So if i choose ID=1 i will get instrument2->1
if i choose ID=2 i will get instrument1->2 and instrument3->1

My question is how do i make a reference to the value of a cell in mysql without having to put the name of the column.(there might be 20 instruments)
or if you have a better idea how to do it.

Another question:
How can i reset the values of a specific row, such as Id=1. so all the instruments have a 0 instead of a 1.

hope my questions are clear. thanks for your help. i couldnt find any examples relevant using google.

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select * where value>1
August 24, 2011 04:17PM

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