I do not know if it would be possible, but we took a PHP / Mysql system from which each client has its own database. But we are creating another tool for this system and of course, it will have a new table in the databases. The problem is that this system, as said before, has a total of 23 databases and each bank belongs to a customer registered in that system.
Is it possible, when developing a new table, to include it in all these databases at once through some SQL command, or will we have to go from one database to the next to install this new table?