Collections:
ANY_VALUE() - Any Value in Group
How to calculate the average value of a field expression in result set groups using the ANY_VALUE() function?
✍: FYIcenter.com
ANY_VALUE(expr) is a MySQL built-in aggregate function that returns any value of a field expression in result set groups. For example:
SELECT help_category_id, MAX(Name), ANY_VALUE(Name) FROM mysql.help_topic GROUP BY help_category_id; -- +------------------+-----------------------------------+---------------------+ -- | help_category_id | MAX(Name) | ANY_VALUE(Name) | -- +------------------+-----------------------------------+---------------------+ -- | 1 | HELP_VERSION | HELP_DATE | -- | 2 | YEAR DATA TYPE | AUTO_INCREMENT | -- | 3 | SHUTDOWN | HELP COMMAND | -- | 4 | TRUE | TRUE | -- | 5 | SPATIAL INDEXES | GEOMETRY HIERARCHY | -- ... -- +------------------+-----------------------------------+---------------------+ SELECT help_category_id, MAX(help_topic_id), ANY_VALUE(2*help_topic_id) FROM mysql.help_topic GROUP BY help_category_id; -- +------------------+--------------------+----------------------------+ -- | help_category_id | MAX(help_topic_id) | ANY_VALUE(2*help_topic_id) | -- +------------------+--------------------+----------------------------+ -- | 1 | 1 | 0 | -- | 2 | 39 | 4 | -- | 3 | 675 | 6 | -- | 4 | 5 | 8 | -- | 5 | 44 | 80 | -- ... -- +------------------+--------------------+----------------------------+
Reference information of the ANY_VALUE() function:
ANY_VALUE(expr): any Returns a randomly selected value of expr from each result set group. Arguments, return value and availability: expr: Required. The field expression in result set groups. any: Return value. An any value of the input expression. Available since MySQL 5.7.
⇒ AVG() - Average Value in Group
⇐ MySQL Functions on Aggregation Groups
2023-12-08, 215🔥, 0💬
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