Sql Quiz - Problems and Solutions

In this sql quiz page, I discuss from simple to complex sql challenges. This involves for example the task of selecting rows, adding conditions, use of functions or joining two or more tables, or using sub queries, grouping fields together to get aggregate values, finding duplicates, ranking data by sale, etc.

Here are some problems and solutions:

The above list is growing. I shall keep adding it, please bookmark this page and visit us regularly.

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