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Create student database and retrieve course name taught by king?
STUDENT (name, student#, class, major) COURSE (course name, course#, credit hours, department) SECTION (section identifier, course#, semester, year, instructor) GRADE_REPORT (student#, section identifier, grade) PREREQUISITE (course#, presequisite#)
Retrieve the names of all courses taught by Professor King in 1998
Query:SELECT COURSE_NAME FROM COURSE C, SECTION SWHERE C.COURSE# = S.COURSE#AND INSTRUCTOR = ‘KING' AND YEAR = 1998ORSELECT COURSE_NAME FROM COURSEWHERE COURSE# IN (SELECT COURSE# FROM SECTIONWHERE INSTRUCTOR = ‘KING' AND YEAR = 1998)
What is the use of a slotted-page structure and what is the information are there in the header? The slotted-page structure is used for organizing records within a one block.
Problem: (a) Data mining is one of the best ways to analyse data and using software techniques, hidden and unexpected patterns and relationships in sets of data can be extrac
Components of database manager The above functions are reached by the database manager. The major elements of a database manager are: Authorisation control: This mod
. Ashutosh Dubey who is the director of Gyan Gurukul want a three-level schema architecture for the Gyan Gurukul Company that provide better security also design a data abstraction
triggering
#A multinational tour operator agency has gained new business growth in the North American market through the use of social media. Its operation has expanded by 50% within six mont
What does Aggregation mean?
Two-way Associations Mostly, associations are travel in both directions, although not usually with same frequency. There are three approaches for the implementation. In
What are the advantages and disadvantages of merging an association into a class? Advantages: i) Less number of tables ii) Faster performance due to the fewer tables
i am required to come up with entities relationships, optionality and cardinality from a scenario. there is a night club and bookings for a musician band
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