Databases · Junior · Question 1 of 75
What is a relational database?
- 1A database that stores each record as a separate file
- ✓Correct answer: A database that stores data in tables of rows and columns and links tables through keys
- 3A database that can only store text
Explanation
PostgreSQL, MySQL, SQL Server, Oracle and SQLite are relational databases. You query them with SQL, and relationships between tables are expressed with primary and foreign keys.