How to group by multiple columns in oracle?

@lottie 

To group by multiple columns in Oracle, you can simply include multiple columns in the GROUP BY clause of your SQL query.

Here is an example:

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SELECT column1, column2, COUNT(*)
FROM your_table
GROUP BY column1, column2;

In this example, the query will group the results by both column1 and column2. Make sure to include all the columns you want to group by in the GROUP BY clause.