I do not know how to do this.
You know how to send data to this forum, and read replies. But you don't know how to determine if there are any replies available() from the modem, or how to read() them. Unbelievable.
I want to send different information to the database.
I seriously doubt that the hardware and all the processes involved will allow you to update a database, using a GSM modem, every 2 milliseconds, but feel free to try.
During testing, sending more realistic data would certainly be in order.