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why are older data models are being replaced by new data models
What is the difference between a key and a superkey? Key - A key a single attribute or a combination of two or more attributes of an entity set which is used to identify one
a set of possible data value of an attribute is called??
What is the use of group by clause? Group by clause is used to be relevant aggregate functions to a set of tuples. The attributes given in the group by clause are used to shape
Why Like predicate used for? LIKE predicate: The LIKE predicate searches for strings in which have a certain pattern.
What is a B+-Tree index? A B+-Tree index takes the form of a balanced tree in which each path from the root of the root of the root of the tree to a leaf of the tree is of the
explain the level architectures of the database management system
What are the various symbols used to draw an E-R diagram? Explain with the help of an example how weak entity sets are represented in an E-R diagram. Various symbols used to d
Define page. The database is partitioned into some number of fixed-length blocks, which are referred to as pages.
Do you have experts of the dbms
how to get assignment in DBMS? Please let me know
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Database management is quite interesting but i want subject more clear. Do i get help from your best expert?
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