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Find out the names and company names of all employees sorted in ascending order of company name and descending order of employee names of by which company.
SELECT EMPLOYEE_NAME, COMPANYNAMEFROM WORKSORDER BY COMPANYNAME, EMPLOYEE_NAME DESC;
List any two disadvantages of a database system ? The disadvantages of database system are: • Database systems are difficult, complex, and time-consuming to design. • Substanti
describe all the tables you have created. ?get table_name, status, num_rows, user_stats in user_tables system view ?get table_name, constraint_name, constraint_type in user_constr
How many types of users works on database? Users are differentiated through the way they expect to interact along with the system (i) Application programmers-interact with
The functions of DBA ?
What is a database? At any given time, they're storing a tremendous amount of information - inventory, in the case of Amazon, messages and interrelationships in the case of Tw
Problem: ‘Users and Information system specialists need to spend inordinate amounts of time locating and gathering data' (Watson and Hal, 1998) Recent developments in the ar
what problems are raised by the database? why is it so controversial? why is data quality an issue?
Project: Microsoft Access You have been asked by the ABC Tanning Salon to create a database that can be used to track the salon's customers. You are to create a table in Access
The basic merits of decomposition. The Advantages of Decomposition 1. Separate person can work on each subsystem. 2. A particular software engineer can specialize in a
Describe the Association: Design Before we describe association design let us define association "Association is set of links between two objects in the object model". It is
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