⟩ What is DBD?
DBD (Database Definition) is used to define the physical structure of the database.
► One DBD for each database
► Created by a series of control statements - by a process called DBDGEN
► Used by DL/I whenever database is used
DBD (Database Definition) is used to define the physical structure of the database.
► One DBD for each database
► Created by a series of control statements - by a process called DBDGEN
► Used by DL/I whenever database is used
How do you calculate record size of an alternate cluster? Give your values for both unique and nonunique?
What is the difference between sequential files and ESDS files?
How do you define a GDG?
How are different versions of GDG named?
During processing of a VSAM file, some system error occurs and it is subsequently unusable What do you do?
What is the meaning of VSAM RETURN-CODE 28?
How to delete a member using JCL?
How many ALternate Indexes you can have on a dataset?
Is it slower if you access a record through ALT INDEX as compared to Primary INDEX?
What is IDCAMS? and what is the purpose of it?