Function countrowdb

Writing functions:

countrowdb(table)

Where table is the variable returned by the opentable function

This function returns the number of rows in the open table.

The function that we are going to consider now is an indispensable tool for working with tables in a database. It is designed to count the number of rows in the specified table and returns this number as the result of its work.

First, let's define some key concepts to better understand what this function does. A row in a database table is a record containing information about a specific object or entity. The unique identifier of each row is called a key, and it allows us to uniquely identify and distinguish one row from another.

It is important to note that the function is written taking into account the specifics of the specific database management system that we are working with. Each DBMS has its own specific SQL commands and syntax, so the code may differ depending on the chosen platform.