29 items
Relational vs Non-Relational
Meaning of NULL
Popular Relational Databases
DBMS Definition and Purpose
Relational Model and Tables
Categories of SQL Commands
What a Schema Is
What SQL Stands For
Foreign Keys and Relationships
Basic SELECT Structure
Primary Key Concept
Rows and Columns
What Is a Database
Common SQL Data Types
Tables, Rows, and Columns
SQL vs NoSQL
Relational Database Concept
Schema Definition
Foreign Key
Common Relational Databases
Primary Key
Database Data Types
Table Relationships
Database Management System (DBMS)
NULL Values
What SQL Is
Constraints
A primary key uniquely identifies each row in a table.
What is the main role of a primary key in a table?