Search results for: "result set"

How can the issue of an empty result set in a MySQL query be addressed in PHP code?

When executing a MySQL query in PHP, it is possible to receive an empty result set if the query does not return any rows matching the criteria. To add...

Why does assigning the result of mysql_query() to a variable and then passing that variable to another mysql_query() result in a failed query?

Assigning the result of `mysql_query()` to a variable consumes the result set, so when you pass that variable to another `mysql_query()` function, it...

What are the potential pitfalls of using mysql_num_rows to count the number of rows in a MySQL result set in PHP?

Using `mysql_num_rows` to count the number of rows in a MySQL result set in PHP can be inefficient and may not work as expected in certain situations....

What potential issue should be considered when iterating through a result set in PHP and accessing specific values?

One potential issue to consider when iterating through a result set in PHP and accessing specific values is the possibility of encountering null or un...

How can the issue of receiving a boolean instead of a result set be resolved in the PHP code?

Issue: The problem of receiving a boolean instead of a result set in PHP code can be resolved by checking the return value of the query execution func...