Understanding SQL Server COALESCE with Empty Strings

coalesce   Dan coalesce

PostgreSQL COALESCE function syntax The COALESCE() function accepts a list of arguments and returns the first non-null argument The COALESCE() function

Given a set of vectors, coalesce() finds the first non-missing value at each position It's inspired by the SQL COALESCE function which does the same thing The coalesce function returns the first of the parameters that has a valid non-NULL representation Any number of parameters can be used

online ludo money game Returns the value of the first non-null expression in the list If all expressions evaluate to null, then COALESCE returns null  What is the purpose of COALESCE in SQL? COALESCE serves to return the first non-NULL value from a set of expressions It helps manage NULL