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Which database level is closest to the users?
External database level is closest to the users.
Synonyms and Indexes Some of the essential properties of indexes are: An Index is a schema Object Indexes can be formed explicitly or automatically Indexes are m
Two-way Associations Mostly, associations are travel in both directions, although not usually with same frequency. There are three approaches for the implementation. In
what are information system hirarchy?
read-set(T) : Each data items that are read by a transaction T Timestamps : for all transaction T, the start-time and the end time are reserved for all the three phases.
i am required to come up with entities relationships, optionality and cardinality from a scenario. there is a night club and bookings for a musician band
What are partial, alternate,, artificial, compound and natural key? Partial Key: It is a set of attributes that can uniquely recognize weak entities and that are related to s
what is difference between circular inked lust and grunded linked list
Explanation on Data Sharing?
#explain five disadvantages of a dbms..
What is Nested Queries explain in details? Nested Queries - A SELECT query could have subquery(s) in it. While a SELECT query having another SELECT query in it, is known as n
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