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Why Like predicate used for? LIKE predicate: The LIKE predicate searches for strings in which have a certain pattern.
What is a foreign key, and what is it used for? A foreign key is used to establish relationships between relations in the relational model. Technically, a foreign key is a colu
Describe the Association: Design Before we describe association design let us define association "Association is set of links between two objects in the object model". It is
What is RDBMS terminology for a row? A tuple is a RDBMS terminology for a row
Write short notes on tuple relational calculus. The tuple relational calculation is anon procedural query language. It defines the desired information without giving a particul
Describe Hashing in DBMS? Hashing: Hashing is a technique to store data within an array so which storing, searching, inserting and deleting data is fast (in theory it's O(1))
What are the responsibility of File manager? File Manager : Manager allocation of space on disk storage and the data structures used to represent within stored on disk. It is a
What is System R? What are its two major subsystems? System R was intended and developed over a period of 1974-79 at IBM San Jose Research Center. It is a prototype and its pur
In case of entity integrity, the primary key may be declared? In a case of entity integrity primary key may be not Null.
State the definition of association An association is a structural relationship which specifies that objects of one thing are connected with objects of another. In UML, asso
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