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courier company er-diagram
What is a SELECT operation? The select operation selects tuples that please a given predicate. We use the lowercase letter σ to denote selection.
Define a relation ? Relation - A relations is a named two-dimensional table of data. Mathematically, a relation can be described as a subset of the cartesian product of a lis
What are the basic objects of the data dictionary? Tables Domains Data elements Structures Foreign Keys
What is known as clustering file organization? In the clustering file organization, records of several dissimilar relations are stored in the similar file.
anyone have a textbook solutions case fair, 8 edition of vol 1 ?, please give me
Q.1 Briefly discuss the different layers of ANSI SPARC architecture. Ans: The three layers of ANSI SPARC architecture are like this: 1. Internal view is at the lowest leve
What are the object-oriented approaches Software systems which are designed with structured design methodology never support some of desired quality attributes for example reus
What is the full form of ODBC ? ODBC stands for Open Database Connectivity.
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