The standard EMP table contains 14 records corresponding to the employess of the corporation.One of those records has a NULL value stored in the MGR column.If Issue the following command on the table: select count(mgr) from emp; What is the count?

COUNT(column_name) ignores NULL values and only counts non-NULL entries. With 14 total records and 1 NULL in MGR column, COUNT(MGR) returns 13, which is <14. COUNT(*) would return 14 because it counts all rows regardless of NULLs. The question tests understanding that aggregate functions like COUNT, SUM, AVG skip NULL values when operating on a specific column.