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What is meant by object identifiers? Object-oriented systems use an object identifier to recognize objects. Object identifiers are unique: that is every object has a single ide
I need help in doing my dbms project
What are called index-sequential files? The files that are ordered sequentially with a primary index on the search key are known as index-sequential files
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Define blocks? The database system resides eternally on non-volatile storage, and is into fixed-length storage units known as blocks.
Describe Interfaces for the DBA? Interfaces for the DBA - Most database systems holds privileged commands which could be used only through the DBA's staff. These involves com
what do you mean by primary key constraint?
Question: (a) Prepare an ERD for the scenario given below. (b) Convert the ER diagram produced in (a) above into its physical design. You have to choose an appropriate Pri
what are the reasons having variable length records
Entity types that do not have any key attribute, and therefore cannot be identified independently, are known as weak entity types. A weak entity can be recognized uniquely only by
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