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Define the terms
i) DDL
ii) DML
DDL: Data base schema is specified by a set of definitions expressed by a special language known as a data definition language.
DML: A data manipulation language is a language that enables users to access or manipulate data as organized by the suitable data model.
Insertion Anomaly: Inability to show certain information-The primary key of the over relation be (enrolment number, Cno). Any new tuple to be inserted in the relation should have
er diagram on cosmetics.
Implementation of association as an object Implement as a separate association object, independent of either class, as in Figure. An association object is a group of pairs
What is the difference between WHERE and HAVING clauses?. Predicates in the WHERE clause applies to every tuple while the predicate in the HAVING clause applies to groups.
online eductional management system ke diagram
Probelm: a) In the context of OODBMS, define the following terms with appropriate examples. (i) Object class. (ii) Abstract class. (iii) Aggregation. (iv)
A practice called Perfect Pets provides private health care for domestic pets throughout America. This service is provided through various clinics located in the main cities of Ame
Give the general form of SQL query? Select A1, A2............., An From R1, R2..............., Rm Where P
What are the benefits of document scanning? Document scanning, in addition to being cost-efficient, also enhances productivity. This service enhances security as you set the pa
Create a table according to given data: AmbulanceDriver(Driver_Number#, Name, Address, Birth_Date) AmbulanceDriverTeam(Team_Number#, Driver_Number#, Join_Date, Lea
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