Search results for: "DELETE-Anweisungen"

Are there limitations or best practices for using multiple foreign keys in a single table in MySQL?

When using multiple foreign keys in a single table in MySQL, it is important to consider the relationships between the tables and ensure that the fore...

How can PHP be utilized to transfer data from one table to another based on date comparisons, without deleting the original data immediately?

To transfer data from one table to another based on date comparisons without deleting the original data immediately, you can use PHP to select the dat...

What is the difference between using oci_num_rows() and ocirowcount() in PHP versions before 5.0.0?

In PHP versions before 5.0.0, there is a difference between using oci_num_rows() and ocirowcount() functions when working with Oracle databases. oci_n...

When should the WHERE clause be used in an INSERT statement in PHP?

The WHERE clause should not be used in an INSERT statement in PHP. The WHERE clause is used in SQL statements like SELECT, UPDATE, and DELETE to speci...

In what scenarios would it be more appropriate to use file_exists, unlink, and rename functions in PHP instead of relying on built-in functions like glob for file manipulation tasks?

When dealing with file manipulation tasks in PHP, it may be more appropriate to use the `file_exists`, `unlink`, and `rename` functions instead of rel...