Search results for: "recommended books"

How can a LEFT JOIN be used to display all categories, including those with no books in them?

To display all categories, including those with no books in them, we can use a LEFT JOIN in our SQL query. This will ensure that all categories are in...

Are there recommended resources or books for further learning and mastering OOP in PHP, apart from the ones mentioned in the forum thread?

For further learning and mastering Object-Oriented Programming (OOP) in PHP, some recommended resources and books include "PHP Objects, Patterns, and...

Are online tutorials or physical books better for learning PHP effectively?

The effectiveness of learning PHP through online tutorials versus physical books ultimately depends on personal learning preferences. Online tutorials...

Is it advisable to purchase multiple books on PHP for a comprehensive understanding, or is one sufficient?

It can be beneficial to purchase multiple books on PHP for a comprehensive understanding as different books may cover different aspects of the languag...

What is the correct SQL query to retrieve the category and the number of books in each category?

To retrieve the category and the number of books in each category, you can use the SQL query with a GROUP BY clause to group the results by category a...