how file handling is done in cobol and how it is help full for user??
File handling we have random,sequential,dynamic methods... Cobol supports all the three techniques and it is helpful for the user when the requirement is based on file operations.
is it is banificial for user??
It differs because if the requirement is huge and the data is also large in nos then we go for database which is helpful and easy for accessing ... if you can differ between file and database then that will be the answer to your question.