sql zeroifnull

The ZEROIFNULL function is not a standard SQL function and may not be supported by all database management systems. However, it is a common function in some DBMSs, such as Microsoft SQL Server and Oracle.

The ZEROIFNULL function is used to replace NULL values with zero (0) in a query result. It takes a single argument, which can be any numeric data type or an expression that evaluates to a numeric value. If the argument is NULL, the function returns zero; otherwise, it returns the argument value.

Here is an example of using the ZEROIFNULL function in Microsoft SQL Server:

SELECT product_name, ISNULL(unit_price, 0) AS unit_price
FROM products;

This query selects the product_name and unit_price columns from the products table. The ISNULL function is used to replace any NULL values in the unit_price column with zero.

Note that different database systems may have different syntax or functions for achieving similar results.