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We want to construct a database for a world-wide package delivery company (e.g., DHL). The database must be able to keep track of customers who ship items and customers who receive items (some customers may do both). For each customer, the database needs
to store the customer ID, name and address. Each package must be trackable, so the database muststore the locations through which the package has gone. For each location, the database needs tostore the location ID, the city name and the country name. For each package, the database muststore the package ID and the weight.
(a) Draw an E-R diagram that reflects the above reuirements.
(b) Define a set of relational schemas and identify primary and foreign keys. Try not to include redundant schemas.
Create a stored procedure that updates the members' balance in the membership table by correctly recording the current or outstanding balance for each customer.
How many copies of the book titled „The big magic? are owned by the local library whose name is "Newtown" library?
Proceed with all steps in information-level design to add this user view to existing cumulative design. Is this table in1st NF?___No____ . If Yes skip. If not, write Table in DBDL notation after applying the methodology we use for converting into 1NF..
Write a Assignment to study and modify the PostgreSQL source code, with a focus on one of the core modules - the buffer manager
Describe the database and describe the four characteristics of the database? Explain the Relational Database and generate a relational database for five employees.
What is the maximum rate at which data can be read from disk, assuming that we can only read data from one surface at a time? What is the average rotational latency?
Course: data mining. Require a 7 page essay on subjects: Warehouse Architectures: the paper requires to contain information about centralized, federated, and tiered data warehouse.
Describe briefly what are the main benefits of using DBMS to manage data in program applications involving extensive data access.
Examine different sales transactions. Design a context diagram and a level-0 diagram that represent the selling system at the store.
Draw an inheritance hierarchy to represent a shoe object. The base class should have derived classes of Dress Shoes, Tennis Shoes and Boots.
A database at a college is required to support the following requirements. Complete the information-level design for this set of requirements. Determine any constraints you need that are not stated in the problem.
CAR (Serial-No, ModConsider the given relations for database which keeps track of auto sales in car dealership.
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