I would like to set up conditional branching within MySql.

Thank you for your help.

Please give me some advice.Thank you for your cooperation.

When you click a table in MySql, each tab is aligned, and when you click the "View" tab on the leftmost side, the fields in the table are aligned in a horizontal column.

In this example, in a table that defines the URL of a website, each field includes, for example, page_id, name, url, filename, ...

Filename is a template file for that site, but I would like to flag the URL of that site and replace it with multiple template files. Is it possible for mysql to set up the process?(Because the php side cannot set the action for some reason.) (If the php side sets it, the settings will be as follows.)

 if($_GET['id']==1){
$this->tpl_mainpage='file1.tpl';
} else if($_GET['id']==2){
$this->tpl_mainpage='file2.tpl';
} else{
$this->tpl_mainpage='file3.tpl';
}