Grouping in select query returns more rows than in actual selecting table?

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i need to select few columns from table which contains 10 records, I need to group these 1 records by productId. if i group all these records from product table which contains more than 120 records am getting more than 1000 records.

asked 1 min ago

Bharatkmr

6

Grouping in select query returns more rows than in actual selecting table?