Coalesce in SQL: How to Use Coalesce() Function

Coalesce in SQL: How to Use Coalesce() Function coalesce The COALESCE expression allows for user-specified NULL-handling It is often used to fill in missing values in dirty data coalesce The coalesce function can be used to assign a target object a user-defined value or the result of an expression when null values are read · A maximum of ten

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

coalesce The COALESCE function returns the first non-NULL value from a series of expressions  COALESCE returns the first non-null expr in the expression list You must specify at least two expressions If all occurrences of expr evaluate to null,