Question

I just asked (and was kindly answered)

This question:
SQLite3 select field by numeric range

But now if I have the table

rowid     value1    value2    type
(int)     (float)   (float)   (char)
1         15.3      20.2      W
2         17.8      30.5      W
3         15.8      25.3      S
4         16.1      48.0      WT

How can select those rows where type=’W’ & type=’S’ and 15 <= value1 <= 16.6 and 30.0 <= value2 <=30.0 ?

I try as someone suggested on my previous question to use AND, but for the strings something like this:

SELECT * FROM EN WHERE type='S' and type='W';

Does not work, it returns an empty result (I’m using SQLite manager extension for Firefox).

And there are hundreds of both W, S, WT types in the database.

Answer 1

SELECT * 
FROM   en 
WHERE  ( TYPE = 'S' 
          OR TYPE = 'W' ) 
       AND ( value1 BETWEEN 15 AND 16.6 
             AND value2 BETWEEN 30.0 AND 40.0 )