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!
Write a program within embedded SQL to associative the total trip expenses of the salesman named ‘John' for the relations.
EXEC SQL BEGIN DECLARE SECTION; long total_expenses; EXEC SQL END DECLARE SECTION; EXEC SQL SELECT SUM(AMOUNT) INTO :total_expenses FROM EXPENSE WHERE TRIPIDIN (SELECT TRIP_ID FROM TRIP WHERE SSN = (SELECT SSN FROM SALEPERSON WHERE NAME = ‘John')); printf("\nThe total trip expenses of the salesman John is: %ld", total_expenses);
What is Explicit update In explicit update, each derived attribute is defined with respect to one, or more fundamental base object(s). The object designer determines that de
(a) Explain the three types of potential mistake which could occur if concurrency control is not properly enforced in the database system. Support your answer with appropriate ex
Class Diagram A class diagram is required to support functional necessity of system. In a static design view, class diagram is used to model vocabulary of the system, simple c
After the completion of the logical model the physical model is to be made. The oracle 10 G will be used as a database server and all the tables with their column are created and i
Write short notes on relational constraints? Relational Constraints are: 1. NOT NULL 2. Unique 3. Primary key 4. Foreign key 5. Table check
What are the failures of Controlling Events Between Objects Failure Unintentional termination of system. Several possible causes: failure of system hardware, o
What are the basic objects of the data dictionary? Tables Domains Data elements Structures Foreign Keys
Dependency Preservation It is obvious that the decomposition must be lossless so that we do not lose any information from the relation that is decomposed. Dependency preservati
When It is better to use files than a DBMS? It is better to use files than a DBMS when Multiple users wish to access the data.
What are the time stamps associated with each data item? W-timestamp (Q) denotes the largest time stamp if any transaction that implemented WRITE (Q) successfully. R-timesta
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: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd