如何在MySQL中选择两个表，但仅从第二个表中选择一列？

Question

I have two tables, one table is for users and stores everything about the user, but more importantly a users profile image stored as a file location. The second table is an images table, where images location and information is stored, such as title and description.

I need to link the profile image to the user who uploaded the photo. The users table has a user_id and profile_image, and the images table has just a user_id.

How can I select all of the images table and just the profile image in one query? Is this even possible?

Edit I have been looking at joins but can't seem to figure it out. The tables look like this:

IMAGES                             USERS
id                                 user_id
user_id                            username
username                           password
title                              isadmin
image (location)                   points
description                        signup_date
points                             email
category                           city
                                   bio
                                   profile_image

I need profile_image to be selected so it can be called upon using $row[profile_image], but I also need all of the information from the images table. Hopefully this clarifies things!

Answer 1

You can use a join based on user_id eg for select all the columns for the user_id = 1

  select USERS.* , IMAGES.*
  from USERS
  INNER JOIN IMAGES ON USERS.user_id = IMAGES.user_id
  WHERE USERS.user_id = 1