Скачать или смотреть How to Make a Cross Join Query with SQL

In this episode, we're going to look at the Cross Join in SQL. This handy join is the one that gives us the Cartesian Product of two sets, generating a list of all the combinations of records in one table with those in another. This has many really great use cases, and every developer should know how to do it. You will see one gotcha as to why "Cross Join" doesn't work on your database (and what to do about it), and one more advanced use case on how you might use this awesome feature.

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