[英]How to select all rows for same value of column?
How to select all rows that have the same value in a column? 如何选择列中具有相同值的所有行?
SELECT * FROM messages WHERE count(mcc) > 1 // total all same of value for column mcc > 1
only 338, 338, 338, 340, 340 etc . 仅338、338、338、340、340等。 Not 330, 316, 334 coz they haven't same values 不是330、316、334 coz,它们具有不同的值
You can try this query:- 您可以尝试以下查询:
SELECT * FROM messages
WHERE mcc in (SELECT mcc FROM messages
GROUP BY mcc
HAVING COUNT(mcc) > 1)
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