Making one field distinct with a "where" clause?

[pollardski]

Hello. I'm making a database to store movie info for a DVD collection. I have a table with fields: title, year, runtime and such. I want an indefinite number of genre to be associated with a movie, so I created a "genre" table and a junction table between that and the "movie" table. Now, on form I want to be able to filter a list of movies based on a genre selection from a combo box. The only way I can see to do this is to make the rowsource of the listbox a query with "tblMovie.MovieID, tblMovie.Title, tblJunction.GenreID" connected through MovieID. This would work except that if a movie is associated with more than one genre on the junction table, the movie appears on the list more than once. I want a movie to appear only once. That's my problem. Thanks in advance for the help.

 

[neileg]

The movie should only have one entry associated with that genre, though, so if you use the genre as a criterion in your query, you'll only get one result.