Uncover the essentials of MySQL server, including its setup, SQL commands, data manipulation, and advanced topics like joins and subqueries.

Computer Science Bootcamp

Relational database management system (RDBMS) enables the creation, management, and organization of relational databases. At the same time, Structured Query Language (SQL) is a standardized programming language used to interact with databases, perform data manipulation, retrieve information, and construct complex queries to extract valuable insights from the stored data. This module will teach us to set up and communicate with the MySQL server. We’ll then delve into fundamental SQL commands, such as creating databases and tables and manipulating data. Next, we’ll explore the topics like adding columns and indexes and working with foreign keys. Additionally, we’ll gain expertise in fetching data from multiple tables using joins and subqueries. By the end of this module, we’ll have gained a comprehensive understanding of MySQL server, empowering us to advance our career by developing robust and efficient database solutions.

Relational Databases and SQL

/* Implement here */
create unique index products_name_uidx on products(name);
insert into products(name, price) values ('The Godfather', 90.00);

## Explanation
- **Line 2**: We create a unique index on the `name` column to avoid duplication.
- **Line 3**: We insert the same `name` that exists already to make sure it gives an error in the output.


Learn about the solution to the previous challenge.

Manage MySQL Server

Basic SQL Commands

Add Columns and Indexes

Count and Sort Records

Foreign Keys

Joins, Left Joins, And Subqueries

Conclusion

Solution: Create Indexes

Solution