Answer Posted / sravan
1.Datacom is a Database Manager developed by CA for MVS.
2.Organisation:Data is stored in teh form of databases,
which can have onw or more keys
3.Access : Access is through 'embeded' datacom calls in
high level languages(eg. through Ideal in PL1), or through
dataquery
4.Databases are known by a username Eg. FED-Profile
Internally in the system they are referred to by a 3
char id
5. It is imp to know the DB-id, that is how the datacom
knows the database
6.One or more keys can combine in several ways to form
several keys
7.There is no concept of Primary key or alternate key - all
keys are "on par"
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