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What is a primary index?
A primary index is an index whose search key also explains the sequential order of the file.
Which model is record based logical model? Network Modelis basically known as record based logical model.
does tables are called relations
Most computer systems authenticate users by asking them for the user name and password. However, the user names and passwords often can be guessed by hackers. Suggest an automated,
What is the difference between serial and sequential files? How searching is applied on both? Ans: A serial file is one where the records have been stored in the order where
Explain Relational model and their use in DBMS? Relational Model - The relational model was first introduced through E.F. Codd of the IBM Research in the year of 1970. The mode
Define tuple variable Tuple variable is a type of variable whose domain is the set of all tuples.
under what condition log based recovery is feasible?
Define blocks? The database system resides eternally on non-volatile storage, and is into fixed-length storage units known as blocks.
#floating point representation is used to store
Define the term- Actors and Data Stores Actors: An actor is the active object which drives data flow graph by producing or consuming values. Actors are attached to inputs a
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