COALESCE

COALESCE is an SQL function that returns the first non-null value in a list of expressions. It's commonly used to handle null values or provide default values in queries. COALESCE evaluates its arguments in order and returns the first non-null result, making it useful for data cleaning, report generation, and simplifying complex conditional logic in SQL statements.

Visit the following resources to learn more:

• @article@How to use the COALESCE function in SQL
• @article@COALESCE - PostgreSQL