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!
Question:
(a) List four disadvantages of the File Processing System as compared to the Database Systems.
(b) The integrity of a database is enforced by integrity rules. One of these rules, the referential integrity rules, states that the database must not contain any unmatched foreign key values.
(i) Discuss what should happen on an attempt to delete the target of a foreign key reference?
(ii) Discuss what should happen on an attempt to update the primary key of the target of a foreign key reference?
Your discussion should describe the three possible techniques which can be used to deal with the problem, and provide one example for each technique.
(c) List and describe briefly the nine components of a typical database environment.
(d) Explain the difference between external, internal and conceptual schemas. How are these different schema layers related to the concept of logical and physical data independence?
Illustrate different types of Locks in SQL Server. There are three kinds of locks in SQL Server i.) Shared locks - These are used for operations which don't allow any update
Example : Create a sequence named SEQSS that starts at 105, has a step of 1 and can take maximum value as 2000. CREATE SEQUENCE SEQSS START WITH 105 INCREMENT BY 1 MAX VA
How many physical thing?
Analyzing Association Traversal Association Traversal shall be understood properly for the association design explanation. Analyzing association traversal means analyzing tra
Explain Derived and Non-Derived Attribute? In few cases, two or more attribute values are related, for instance, Age and BirthDate attributes of a person. For specific person e
i am not clear with the climetic condition of the north indian plain. can u plz explain it for me
What is association? Give an example of association Association is used for establishing relationships among classes. Association describe links among/between classes. For exa
Define weak and strong entity sets? Weak entity set: entity set that do not have key attribute of their own are known as weak entity sets. Strong entity set: Entity set that
What is the difference between internal tables and extract datasets? The lines of an internal table always have the similar structure. By using extract datasets, you can ha
How is the database organised in Oracle? Database organized within Oracle in terms of table and table holds attributes and values. A database consists of one or more logical
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