Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
What is Data dictionary?
A data dictionary is a reserved space in a database that is employed to store information about the database itself.
A data dictionary may consist of information like:
a)Database design information
b)Stored SQL procedures
c)User permissions
d)User statistics
e)Database process information
f)Database growth statistics
g)Database performance statistics
i need help for assignment ..
Explain weak and strong entity type ? Weak and Strong entity type: An entity set which does not have a primary key is referred to as a weak entity set. The existence of a wea
Consider the relations EMPLOYEE(emp#, name) ASSIGNED_TO(project#, emp#) PROJECT(project#, project_name, chief) Express the subsequent queries in Relational Algebra (i) Ge
Normal 0 false false false EN-IN X-NONE X-NONE
What is the difference between link and reference? The fundamental difference between links and references is that links are symmetrical on the other hand references refer only
What type of view of total database content? Data base content Conceptual view of total database contain.
Physical Database Design Issues The database design includes the process of logical design with the use of E-R diagram, normalisation, etc., followed by the physical design.
Mappings between Levels and Data Independence The 3 levels of abstraction in the database do not exist separately of each other. There must be some correspondence, or mapping
Determine the rule that a value of a foreign key should appear as a value of some particular table is called a Ans: Referential constraint. The rule that a value of a fo
Write a query to define tables students and teachers as sub tables of people? Create table students of student under people Create table teachers of teacher under people
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd