coalesce function

Coalesce returns the first non-null value in a list If all the values in the list are NULL, then the function returns null

The COALESCE scalar function takes two or more arguments and returns the first nonnull argument, starting from the left in the expression list Syntax

coalesce The COALESCE function checks the value of each column in the order in which they are listed and returns the first nonmissing value If only one

coalesce In this lab we will show you how to implement COALESCE FUNCTION in SQL using MYSQL