BreakInterview Team
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I have the following table schema which maps user_customers to permissions on a live MySQL database:

mysql> describe user_customer_permission;
| Field            | Type    | Null | Key | Default | Extra          |
| id               | int(11) | NO   | PRI | NULL    | auto_increment |
| user_customer_id | int(11) | NO   | PRI | NULL    |                |
| permission_id    | int(11) | NO   | PRI | NULL    |                |
3 rows in set (0.00 sec)

I would like to remove the primary keys for user_customer_id and permission_id and retain the primary key for id.

When I run the command:


Job description

Who are we looking for?

We are looking for an outstanding Full Stack Developer to be part of our growing team. The position is full time working remotely from home. Do you have experience in the following?

Skills & Requirements

  • You love developing software and you love to learn every day
  • You have at least 3 years of solid experience creating web applications using backend and frontend technologies like PHP, Symfony, AngularJS, Typescript / ES6, ReactJS)
  • None of these technologies should leave you clueless: Node.js, RESTful, Angular, webpack, WebRTC, Redux
  • You know your way around common web technologies like HTML5, CSS (LESS/SASS/PostCSS),
  • You know how to use rebase, merge and fork in Git
  • You are passionate about code quality. Writing tests and documentation belong to your natural workflow
  • You have experience working in an agile team using SCRUM, Kanban or similar methodologies
  • A history of active contributions to open source projects is a plus.



Clevertech looks for craftsmen developers who take ownership of their code. You can deliver quickly while being clever to avoid missteps. You have an effective positive attitude that shines as you show your care about client and colleague concerns. You are always learning and are a transparent communicator even when it is challenging. You thrive on challenging yourself daily and seek to surround yourself with like minded individuals.

Technically, you have an excellent background in data structures, design patterns, and modern programming practices with more than 2 years experience.

Well qualified applicants will have deep experience in the latest libraries and programming techniques. You will have accomplishments that showcase your capabilities by their success and technical depth. Our standard projects use full stack javascript, however we also other technologies such as Python, Clojure, Go and on occasion Java or C++ .