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MAX
Aggregate function. Returns the highest value observed in all rows in an aggregation. “Highest” is determined by the collation rules of the data passed in.
Info
This aggregate function is not to be confused with GREATEST, which is a non-aggregate function returning the highest value in its list of arguments.
Syntax
MAX ( expression )
Arguments
- expression: any expression. This may be a column name, the result of another function, or a math operation.
Return Type
The highest value, in the type of the input.
Examples
SELECT MAX(person_id) FROM people;
+----------------+
| MAX(person_id) |
+----------------+
| 6336 |
+----------------+
SELECT MAX(first_name) FROM people;
+-----------------+
| MAX(first_name) |
+-----------------+
| Zula |
+-----------------+
