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This is from the SQL Reference book: IFNULL IFNULL ( expression , expression ) The IFNULL function is identical to the COALESCE scalar function with two arguments. For more information, see "COALESCE" on page 152. Example When selecting the employee number (EMPNO) and salary (SALARY) from all the rows in the EMPLOYEE table, if the salary is missing (that is, null), then return a value of zero. SELECT EMPNO, IFNULL(SALARY,0) FROM EMPLOYEE Elvis
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