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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);
You are to write a property management database program that allows a real estate agent to view, add, search, and save property listings. The program is to do the following: 1.
WHAT IS DBMS
Describe the primary key functions? Primary Key : The primary key is an attribute or a set of attributes in which uniquely identify a specific example of an entity. Every entit
What are the requirements to ensure the objectives of file management principle is realized?
Explain the Concept of Two-phase Locking It concerns the positions of locking and unlocking operations in each transaction. In this protocol every transaction issue lock and u
Automated system for appointment with sms and call confirmation with service providers and user has to be initiate automatically. After selecting time and date to use service, s
Explain how the associations are implemented as classes. A general approach in this case is to transform an association class into a simple class linked to two original classes
Example: Consider the following relations: ROLLNO NAME ADDRESS COURSE_ID 100 Ka
Smart Alex Catering Sevice (SACS) is a company offering top class catering staff for prestigious events. The company employs approximately 200 hourly paid contact staff - chefs,
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
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