Problems for You to Solve
Below, we show you the request statement and the name of the solution query in the sample databases. If you want some practice, you can work out the SQL you need for each request and then check your answer with the query we saved in the samples. Don’t worry if your syntax doesn’t exactly match the syntax of the queries we saved—as long as your result is the same.
Sales Orders Database
| 1. | “Delete products that have never been ordered.”
(Hint: You need to delete from the Product_Vendors table first and then from the Products table.) You can find the solution in CH17_Delete_Products_Never_Ordered_1 (4 rows deleted) and CH17_Delete_Products_Never_Ordered_2 (2 rows deleted). |
| 2. | “Delete employees who haven’t sold anything.” ... |
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