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Question:
a) Given the following relation:
Location(loc_id, bldg_code, room, capacity)
The underlined field is a primary key.
(i) Write a PL/SQL program using the implicit cursor to display the building code of location id 5.
(ii) Write a PL/SQL program that uses an explicit cursor to retrieve and display the room value for every record in the location table in which the building code value is "LIB".
(b) Write a PROLOG program that answers the question about family members and relationships. Include predicates and rules which define sister, brother, father, mother, grandchild, grandfather and uncle. The program should be able to answer queries such as the following:
- father(X,Bob) - grandson(X,Y) - uncle(Bill, Sue) - mother(mary, X)
(a) What are decision support systems, and what role do they play in the business environment? (b) Data warehousing is defined as "a subject-oriented, integrated, non-volatile c
Comparison Operators Usually, you use the comparison operators in the WHERE clause of a data manipulation statement to form the predicates, that compare one expression to anot
which operation is used if we are interested in only certain columns of a table?
Package STANDARD The package named STANDARD defines the PL/SQL atmosphere. The package specification globally declares the exceptions, types, and subprograms that are available
Using Aliases The Select-list items fetched from a cursor related with the %ROWTYPE should have simple names or, if they are expressions, should have aliases. In the example bel
What are 3 good practices of modeling and/or implementing data warehouses?
Seeking a programmer to design a legal document with pre-existing fields that could allow the auto-population of client(s) information (i.e. Name, Account Number, Address etc.) int
Use the RETURNING Clause Frequently, the application requires information about the row affected by a SQL operation, for illustration, to produce a report or take a subsequent
Question: a) Given the following relation: Location(loc_id, bldg_code, room, capacity) The underlined field is a primary key. (i) Write a PL/SQL program using the impl
Parameter and Keyword Description: cursor_variable_name: This identifies a cursor variable or the parameter formerly declared within the present scope. host_cursor_va
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