Hello and welcome to Part 2 of the article 'Using Foreign Key constraints in MySQL. In this article we will look at what happens when we add, delete or update records in all the tables. So far we have three tables: employees, departments and … [Continue reading] about Using Foreign Key constraints in MySQL – Part 2
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Using Foreign Key constraints in MySQL – Part 1
In this article we will look at how to use foreign key constraints in MySQL. We'll be creating a Database with tables which are related to one another through the use of Foreign Keys. A Foreign key is nothing but a copy of a Primary Key in another … [Continue reading] about Using Foreign Key constraints in MySQL – Part 1
A Complete Beginners Guide to Arrays in PHP – Part 3
Welcome to the third and final installment of this series on A Complete Beginners Guide to Arrays in PHP. In part 3 we will explore some more of PHP's built in array functions and and also look at some practical examples of using these functions by … [Continue reading] about A Complete Beginners Guide to Arrays in PHP – Part 3
A Complete Beginners Guide to Arrays in PHP – Part 2
Welcome to part two of A Complete Beginners Guide to Arrays in PHP. Previously in Part 1, we looked at the kinds of arrays supported in PHP and how to initialise, pre-initalise these arrays. We also looked at how to access and modify the values of … [Continue reading] about A Complete Beginners Guide to Arrays in PHP – Part 2
A Complete Beginners Guide to Arrays in PHP – Part 1
In this article I am going to give you a basic primer on Arrays and how we declare, use and manipulate them in PHP. Unlike Scalar Data Types, arrays are a constructs, special variables that contain a collection of other variables which in turn can … [Continue reading] about A Complete Beginners Guide to Arrays in PHP – Part 1