SQL Query Help (Joining two tables)

Question

I have two tables in my database with the following schemas:

ratings table:
usedId
movieId
rating

info table
movieId
imdbId

The movieId values in each table are the same (ie movieId 1 is the same movie in both).

Each movieId & userId appears multiple times in the ratings table.

What I am trying to do is create a new table that looks like:

new table:
userID
movieId
imdbId
rating

Where the imdbId is added for each row that matches the movieId of its original table.

Answer 1

select ratings.userID, ratings.movieId, info.imdbId, ratings.rating from
ratings inner join info on ratings.movieId = info.movieId

Answer 2

Or you can manual join the two tables:

SELECT r.userID, r.movieId, i.imdbId, r.rating 
FROM ratings r, info i 
WHERE r.movieId = i.movieId

Answer 3

You should use SQL Join to create your expected table.

select Rating.userID, Rating.movieId, Info.imdbId, Rating.rating 
from ratings as Rating
inner join 
info as Info on ratings.movieId = info.movieId

To get more details of join check this inner join link