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Which database level is closest to the users?
External database level is closest to the users.
The PROJECT operation The project operation is used to choose the records with specified attributes as discarding the others based on some related criteria. This is denotes as ∏
Explain what is DDL? DDL - Data Definition Language: statements used to define the database structure or schema. Some examples: CREATE - to create objects in the database ALT
how to operate database in access ?
milestone assignment
At its most essential level the DBMS architecture can be divide into two parts: the back end and the front end. The back end is responsible for managing the physical database an
What are the two types of errors? The two types of errors are: a) Logical error b) System error
What are the advantages of object oriented databases in comparison with others? Why it is still not widely used? Object oriented designs are coherent, efficient and less prone
Reflects organisational structure: Many organizations are distributed over various locations. If an organisation has many offices in dissimilar cities, databases used in such an ap
In which relational modes, cardinality is termed? Answer : Cardinality is termed in a number of tuples relational modes.
Which is the properties of entities? Attributes is the properties of entities.
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