SQL Interview: Learn how to find duplicates in table
You can find how to deal with duplicate values in SQL. This is the common question in many interviews.
In duplicates we have 2 questions:
1. How to find duplicate values in a table?
2. how to duplicate rows?
For 2 questions we have 2 different but similar approaches, in this video we focused only on finding the duplicate values. Which is by using group by+ having.
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