Is there a max function in SQL?

How do you write a max function in SQL?

Try using this SQL SELECT statement: SELECT * FROM employees WHERE department_id=30 AND salary = (SELECT MAX(salary) FROM employees WHERE department_id=30); This will return the employee information for only the employee in department 30 that has the highest salary.

What is the max in SQL?

SQL MAX() function The aggregate function SQL MAX() is used to find the maximum value or highest value of a certain column or expression. This function is useful to determine the largest of all selected values of a column.

What is Max () +1 SQL?

MAX(x) - 1 simply means the max value of x in the table minus one. You can always use parenthesis and aliases ( as some_cool_name ) to make thing clearer, or to change names in the result. But the first syntax is perfectly valid.

How do you find the max value in SQL without max function?

select MIN(-1 * col)*-1 as col from tableName; Alternatively you can use the LIMIT clause if your database supports it. It find all possible pairs and retains only those pairs where first field is less than second field. So your max value will not appear in the first field as it is not less that any other value.