Группировка до выборки GROUP BY или DISTINCT в MySQL
PHP
06-01-2019
SELECT user_id, max(`time`) as `time` FROM bill WHERE time` > '2018-06-01 00:00:00' GROUP BY user_id ORDER BY `time` DESC
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06-01-2019
SELECT user_id, max(`time`) as `time` FROM bill WHERE time` > '2018-06-01 00:00:00' GROUP BY user_id ORDER BY `time` DESC