Difference between revisions of "MAX"
From SQLZOO
| Line 30: | Line 30: | ||
<p>See also</p> | <p>See also</p> | ||
<ul> | <ul> | ||
| − | <li>[[EXTRACT function]]</li> | + | <li>[[EXTRACT |EXTRACT function]]</li> |
| − | <li>[ | + | <li>[[SUM |SUM function]]</li> |
| − | <li>[ | + | <li>[[MIN |MIN function]]</li> |
</ul> | </ul> | ||
Revision as of 11:35, 13 July 2012
| MAX(f) | ||
|---|---|---|
| Engine | OK | Alternative |
| ingres | Yes | |
| mysql | Yes | |
| oracle | Yes | |
| postgres | Yes | |
| sqlserver | Yes | |
MAX
MAX finds the highest values in a column or part of a column
MAX is an aggregate function it is normally used with GROUP BY.
SELECT region, MAX(name)
FROM bbc
GROUP BY region
With a GROUP BY region statement each region shows up just once.
The MAX column gives the "largest" name in the region in the context of strings this is the last name alphabetically.
SELECT region, MAX(name) FROM bbc GROUP BY region
See also
