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Development Tools Database Foundations Joining Relational Data Between Tables in SQL Joining Tables and Aliasing

Posted by Stefan Hoffmann
Stefan Hoffmann
24,811 Points

title first and genre name second, database foundations

In the challange task 1 of 2, the last challange in the database foundations it says i do not select the movie title first and the genre name second.

But I do. I even used the long notation for the columns although it would not be needed.

You shall not pass, it says. But I certainly believe it is wrong. Or do i miss something?

SELECT movies.title, genres.name from movies join genres on genre_id =id

1 Answer

Sara Chicazul
Sara Chicazul
7,475 Points

I suspect the error the challenge gives you is misleading. In the prior video, Andrew says that both movies and genres contain a column named id. You are right that you don't need to use the long form if the column name is unique, but if it exists in both tables you must specify which you mean.

Stefan Hoffmann
Stefan Hoffmann
24,811 Points

Thank you very much - again!