Search results for: "SELECT *"

What is the significance of using multiple select options in a select box in PHP?

When using multiple select options in a select box in PHP, it allows users to select multiple items from a list, which can be useful for various purpo...

How can you dynamically fill a select box based on the value of another select box in PHP?

To dynamically fill a select box based on the value of another select box in PHP, you can use AJAX to fetch the options from the server based on the s...

What is the difference between using SELECT * and SELECT COUNT(*) in a MySQL query in PHP?

When using SELECT *, the query will return all columns of the selected rows from the database. On the other hand, when using SELECT COUNT(*), the quer...

How can dependent select boxes be implemented in PHP?

Dependent select boxes in PHP can be implemented by using AJAX to dynamically populate the options of the second select box based on the selection mad...

Is it more efficient to use SELECT COUNT(*) or SELECT * FROM when counting records in a MySQL table in PHP?

When counting records in a MySQL table in PHP, it is more efficient to use SELECT COUNT(*) rather than SELECT * FROM. This is because SELECT COUNT(*)...