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Describe an data dictionary?
A data dictionary is a data structure which keeps meta data about the structure of the database ie. the schema of the database.
How many levels can be viewed in Architecture of the database ? Architecture of the database can be viewed as three levels.
WHAT IS SQL
In an E-R diagram an entity set is represent by? In an E-R digram entity set is represted by rectangle.
1. Determine that the Checkpoints are a part of Ans: Checkpoints are a part of Recovery measures
It is mandatory that for every table in the LDB hierarchy there should exist one GET statement in the report. False. It is not essential.
sir, could anybody help me in getting complete information about the mentioned topic
What is Disadvantages Of DBMS ? 1. Cost of Software and Hardware and Migration - A important disadvantage of the DBMS system is cost. 2. Reduced Response and Throughpu
Define Partial Key and Primary Key A partial key, also known as discriminator, is the set of attributes which can uniquely identify weak entities that are related to similar o
a. Construct a query around any one of the functional divisions you made in 4a such that if executed in the distributed design of 4 would require reconstruction of at least two ho
Create Student DB and perform delete operation? STUDENT (name, student#, class, major) COURSE (course name, course#, credit hours, department) SECTION (section identifier, co
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