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Curriculum
Short Specializations

0x00. MySQL advanced

Back-end SQL MySQL Databases

Concepts

For this project, look at these concepts:

Resources

Read or watch:

Requirement

General

  • Files executed on Ubuntu 18.04 LTS using MySQL 5.7 (version 5.7.30)
  • Files must end with a new line
  • All SQL queries should have a comment just before (i.e. syntax above)
  • Files should start with comment describing tasks
  • All SQL keywords should be in uppercase (SELECT, WHERE...)
  • Mandatory README.md file
  • Length of files tested using wc

More Info

Comments for your SQL file:

$ cat my_script.sql
-- 3 first students in the Batch ID=3
-- because Batch 3 is the best
SELECT id, name FROM students WHERE batch_id = 3 ORDER BY created_at DESC LIMIT 3;
$

Use "container-on-demand" to run MySQL

  • Ask for container Ubuntu 18.04 - Python 3.7
  • Connect via SSH
  • Or via the Web Terminal
  • In the container, start MySQL before playing with it
$ service mysql start
* MySQL Community Server 5.7.30 is started
$
$ cat 0-list_databases.sql | mysql -uroot -p my_database
Enter password:
Database
information_schema
mysql
performance_schema
sys
$

In the container, credentials are root/root

How to import a SQL dump

$ echo "CREATE DATABASE hbtn_0d_tvshows;" | mysql -uroot -p
Enter password:
$ curl "https://s3.amazonaws.com/intranet-projects-files/holbertonschool-higher-level_programming+/274/hbtn_0d_tvshows.sql" -s | mysql -uroot -p hbtn_0d_tvshows
Enter password:
$ echo "SELECT * FROM tv_genres" | mysql -uroot -p hbtn_0d_tvshows
Enter password:
id name
1 Drama
2 Mystery
3 Adventure
4 Fantasy
5 Comedy
6 Crime
7 Suspense
8 Thriller
$

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