Question

How do I find a minimum score from 4 different column of table?
So, if I have column 1 with minimum value is 4, column 2 with minimum value is 3, column 3 with minimum value is 2 and column 4 with minimum value is 1. I want the query is making the result exactly is 1 (from column 1, 2, 3 and 4)

By the way i am using MYSQL, thanks 😀

Answer 1

Use LEAST function in following way:

  SELECT LEAST(t.column1, t.column2,t.column3,t.column4) AS lowest
                                                        FROM table_name t

From above mentioned documentation,

• If the return value is used in an INTEGER context or all arguments
  are integer-valued, they are compared as integers.

• If the return value is used in a REAL context or all arguments are
  real-valued, they are compared as reals.

• If the arguments comprise a mix of numbers and strings, they are
  compared as numbers.

• If any argument is a nonbinary (character) string, the arguments are
  compared as nonbinary strings.

• In all other cases, the arguments are compared as binary strings.