How do I select unique values from multiple columns (each value being unique not the total row) – PHP Versions
I have an existing table that has many rows something like this: id Product Tel1 Tel2 Tel3 Tel4 1 A 1234 1234 1234 1234 2 B 1234 1234 1234 3750 3 C 1234 1235 1234 1234 4 D 1234 1234…