Here are 3 different ways to perform a DB select when you want to specify two or more values for a field.
1. Use th OR operator
PLAIN TEXT
SQL:
SELECT * FROM people
WHERE (first_name = 'pete'
OR first_name = 'paul');
2. Use a Regular Expression
PLAIN TEXT
SQL:
SELECT * FROM people
WHERE first_name ~'^pete|paul$';
3. Use an array
PLAIN TEXT
SQL:
SELECT * FROM people
WHERE [...]