sum() public method
Returns the sum of the specified column values.
| public mixed sum ( $q, $db = null ) | ||
|---|---|---|
| $q | string |
The column name or expression. Make sure you properly quote column names in the expression. |
| $db | yii\db\Connection |
The database connection used to generate the SQL statement. If this parameter is not given, the |
| return | mixed |
The sum of the specified column values. |
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