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Consider the subsequent relations along with keys underlined
Street (name, location, city) House (number, street_name) Lives (name, house_number) Define the above relations as tables in SQL making real world assumptions about the kind of the fields. Define the primary keys and the foreign keys.
Create table street (name character(30) primary key, location character(30), city character(30)); Create table house( number integer primary key, street_name character(30) references street(name)); Create table lives ( name character(30) primary key, house number integer references house(number));
Determine the concept of Process Process: A process transforms the data values. It is represented as ellipse containing a description of transformation. Each procedure has a
Explain Interfaces for parametric Users? Interfaces for Parametric Users - Parametric users, such as bank tellers, frequent have a little set of operations in which they must p
Question : (a) Differentiate between database integrity and database security (b) Database security involves measures to avoid loss of privacy and loss of confidentiality. D
What are object interaction diagrams? Object interaction diagrams are the diagrams that used to describe order in which messages are communicated in execution of an operation,
write an SQL statement to create the database in MYSQL server
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
it can be possible to create any table without primary key
Adding Redundant Associations for Efficient Access The expression redundant association means using "duplicate association for proficient access". While analysis, it is not a
Compare wait-die deadlock prevention scheme with wait-wound scheme Ans: Wait-Die Scheme a) Based upon a nonpreemptive technique. b) If Pi requests a resource present
Two Phase Locking (2PL) The two-phase locking protocol having of two phases: Phase 1 : The lock acquisition phase : If a transaction T needs to read an object, it wants to
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