Introduction

This article is part of our series describing the basic concepts for databases.

Read more: Database Design Basics – Part 3 – What is SQL?

Introduction

A cryptographic hash is a short, fixed length sequence of numbers which is easily calculated from a much larger input sequence such as a file downloaded from the internet. By recalculating the cryptographic hash of such a file and comparing it with an advertised cryptographic hash, one can check that the file has not changed. This allows the integrity of a file to be checked and any malicious or accidental changes to be spotted.

Read more: Checking downloaded files with cryptographic hashes

Introduction

Here’s my second article on database design basics. I’m hoping to tackle other database design topics in future articles – let me know if there’s anything you’d like me to cover.

In part 1, I covered “CRUD’ – Creating, Reading, Updating and Deleting records.

I’m going to cover the basic building block for data storage in a database – the table. A database usually has more than one table. Tables can have relationships with other tables – and this is what makes a ‘relational database’.

Read more: Database Design Basics – Part 2 – Tables and Relationships

 

Introduction

Here’s my first article on database design basics. I’m hoping to tackle other database design topics in future articles – let me know if there’s anything you’d like me to cover.

Read more: Database Design Basics – Part 1 - CRUD

Introduction

I had an iPhone for ages, then I flipped over to using Android. Why? Smartphones of both hues seem to do all the things we need, so why not just pick one, learn all its quirks and foibles, and stick with it?

Read more: Apple v Android - my experience

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