To retrieve duplicate values and its count from an alphanumeric column in mysql database
you can use the following query
SELECT `column_name`, COUNT(*) c FROM `table_name` GROUP BY `column_name` HAVING c > 1;
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To retrieve duplicate values and its count from an alphanumeric column in mysql database
you can use the following query
SELECT `column_name`, COUNT(*) c FROM `table_name` GROUP BY `column_name` HAVING c > 1;
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