Code Monkey home page Code Monkey logo

sqlintro's Introduction

Join Assignments

  • CREATE DATABASE users;
  • \c users;
  • psql users -f seed1.sql

Challenge 1:

Select all posts and display the user that created the post.

Challenge 2:

Select all posts made by the user with the id of 3.

Challenge 3:

Display all users and the posts they made. Display a user even if they haven't made a post.

Challenge 4:

Display all users and their posts ordered by age (from greatest age to lowest).

Challenge 5 (stretch):

Display each users first name along with the number of posts they have made.

Part 2:

For part 2 you'll need to exit out of psql and modify seed2.sql to fit the needs of the challenge.

Challenge 6:

Inside of seed2.sql create a comments table (similar to posts). The comments table will have a foreign key to both a user and a post. Create some dummy comments as well.

Challenge 7:

Display all comments and the contents of the post they were made on.

Challenge 8:

Display all comments with the contents of the post and the user that made the comment.

Challenge 8:

Display all comments where the user who wrote the comment has an age > 30.

Challenge 9:

Display all the posts along with what user made the post, also display any comments along with the users first name that made the comment.

Challenge 10:

Display all the posts with what user made the post, also display the total count of comments each post has.

sqlintro's People

Watchers

James Cloos avatar

Recommend Projects

  • React photo React

    A declarative, efficient, and flexible JavaScript library for building user interfaces.

  • Vue.js photo Vue.js

    ๐Ÿ–– Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.

  • Typescript photo Typescript

    TypeScript is a superset of JavaScript that compiles to clean JavaScript output.

  • TensorFlow photo TensorFlow

    An Open Source Machine Learning Framework for Everyone

  • Django photo Django

    The Web framework for perfectionists with deadlines.

  • D3 photo D3

    Bring data to life with SVG, Canvas and HTML. ๐Ÿ“Š๐Ÿ“ˆ๐ŸŽ‰

Recommend Topics

  • javascript

    JavaScript (JS) is a lightweight interpreted programming language with first-class functions.

  • web

    Some thing interesting about web. New door for the world.

  • server

    A server is a program made to process requests and deliver data to clients.

  • Machine learning

    Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.

  • Game

    Some thing interesting about game, make everyone happy.

Recommend Org

  • Facebook photo Facebook

    We are working to build community through open source technology. NB: members must have two-factor auth.

  • Microsoft photo Microsoft

    Open source projects and samples from Microsoft.

  • Google photo Google

    Google โค๏ธ Open Source for everyone.

  • D3 photo D3

    Data-Driven Documents codes.