Search results for: "previous records"

What is the potential impact of using DISTINCT in a SQL query involving multiple tables in PHP?

When using DISTINCT in a SQL query involving multiple tables in PHP, the potential impact is that it may eliminate duplicate rows from the result set,...

How can one effectively test and compare the clickthrough stats between the PHP banner program and the link partner's tracking?

To effectively test and compare the clickthrough stats between the PHP banner program and the link partner's tracking, you can create a separate track...

In what ways can PHP developers optimize their code to avoid the need for constantly modifying scripts when adding new functionality related to database columns?

To avoid constantly modifying scripts when adding new functionality related to database columns, PHP developers can use Object-Relational Mapping (ORM...

Is it recommended to use mysql_num_rows() or mysql_result() for checking the existence of a record in PHP?

When checking the existence of a record in PHP, it is recommended to use mysql_num_rows() as it is specifically designed for counting the number of ro...

How can I check if a name or other information is already in the database before submitting a form?

To check if a name or other information is already in the database before submitting a form, you can query the database to see if the information alre...