Creating Relationships Relationships in a database are important to reduce redundancy. have a look at the following slides to see why normalisation is important. More to follow on normalisation and the different stages to normalise data. Tutorials in the series:
An If statement is a control structure. We use if statements to programme an automatic response from a computer. Think about an every day device such as a fire alarm in your house. An if statement is programmed into the device memory to beep loudly if it detects carbon monoxide. Look at the flow chart below. more »
Adding interactivity to a website can be very simple. Many websites offer content that can be embedded for free such as vimeo, youtube, Souncloud or google Drive documents. This assessment objective looks at how to create interactive elements. The slideshow shared with my students below has many useful video links to help out.
While Loops are similar to for loops because they repeat segments of code. However in a for loop, you specify how many times a segment of code should repeat. With a while loop, you need to set the condition to make the code stop repeating the specified segment. Setting the condition is similar to that more »