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Using Group Functions in the SELECT Clause in MySQL
How To Use Group Functions in the SELECT Clause in MySQL?
✍: FYIcenter.com
If group functions are used in the SELECT clause, they will be used on the rows that meet the query selection criteria, the output of group functions will be returned as output of the query. The following select statement returns 3 values calculate by 3 group functions on all rows of the "fyi_links" table:
mysql> SELECT COUNT(*), MAX(counts), MIN(created) FROM fyi_links; +----------+-------------+---------------------+ | COUNT(*) | MAX(counts) | MIN(created) | +----------+-------------+---------------------+ | 7 | 8 | 2003-01-01 00:00:00 | +----------+-------------+---------------------+ 1 row in set (0.37 sec)
⇒ Group Functions with Non-group Selections in MySQL
⇐ What Are Group Functions in MySQL
2018-01-06, 1442🔥, 0💬
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