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Sep 212 min

DATABASE FOUNDATIONS: KEYS AND UNIQUE VALUES

There are many keys that are used when working with a database. The most common ones are , Primary key Synthetic key or surrogate key...

Sep 202 min

RELATIONAL DATABASES: FUNDAMENTALS FOR BEGINNERS

There's more than one type of database, like, Graph database, e.g.Neo4j Object databases , e.g. Realm and Objectivity/DB Document...

Sep 192 min

UNDERSTANDING DATABASES IN SQL: BENEFITS OF STRUCTURED DATA

In the previous blog, we have solved one of the problems with the cards, which is to use the customer data more easily. But to track...

Sep 182 min

RELATIONAL DATABASE IN SQL

Why use a database? Databases let us work with large amounts of data efficiently. They make updating data easy and reliable. They also...

Sep 132 min

DDL IN SQL: A SIMPLE GUIDE

DDL in SQL is the short form of Data Definition Language. It is one of the categories of SQL language. Commands under DDL are: CREATE ...

Sep 112 min

INTRODUCTION TO SQL

What is SQL? SQL is the short form of Structured Query Language. SQL is a language used to access the data and structures in a database....