Mastering the COALESCE Function in SQL

coalesce take n number of arguments from left to right coalesce selects the first non null argument similarly isnull is

MicroStrategy SQL generation engine uses COALESCE in two principal ways: to merge attribute ID columns in full outer joins, and for

coalesce COALESCE is a system in-built function that can be considered one of the conditional expressions available in PostgreSQL NULLIF, GREATEST,

coalesce COALESCE Function Function returns the first non-missing value found in an array of columns The order of the columns listed in the function determines the