What do you verify with the database check point custom and what command it generates, explain syntax?

When you create a custom check on a database, you create a standard database checkpoint in which you can specify which properties to check on a result set.
b. You can create a custom check on a database in order to:
i. check the contents of part or the entire result set
ii. edit the expected results of the contents of the result set
iii. count the rows in the result set
iv. count the columns in the result set
c. You can create a custom check on a database using ODBC, Microsoft Query or Data Junction.