Answers for "check double data mysql"

find duplicates mysql column

SELECT name, COUNT(*) c FROM table GROUP BY name HAVING c > 1;

Posted by: Guest on April-20-2020

find duplicate keys in mysql

SELECT col, COUNT(col) FROM table_name GROUP BY col HAVING COUNT(col) > 1;

Posted by: Guest on September-22-2020

Code answers related to "check double data mysql"