Which of the following conditions should exist if you want to convert a relationship to an associative entity?
Options: Some of the relationships for the participating entities are "many"., The resulting associative entity has an independent meaning., The resulting associative entity has no attributes., All of the above
Options: a. drag the primary key of a table into foreign key of another table
b. drag the foreign key of a table into the primary key of another table
c. drag any field from parent table and drop on child table
d. Any of above can be done to create relationship
Options: A) Mechanical analog computers have existed for thousands of years
B) There are mechanical analog computers and electronic analog computers.
C) All electronic computers are digital computers
D) All of above are false
Options: A)for relatively permanent collections of data
b.for the size of the structure and the data in the structure are constantly changing
c.for both of above situation
d.for none of above situation
Performance analysis and tuning is which of the following?
Options: Undertaken one time at the time of a DBMS installation, Undertaken one time at the time of the implementation of a new application, Undertaken as an ongoing part of the backup of a database, Undertaken as an ongoing part of managing a database
The manager, in using the systems approach, should subdivide the firm into subsystems based on
Options: functional areas-marketing, finance, and manufacturing, management levels-strategic, tactical, and operational, resource flows-manpower, money, machines, and material, any of the above represent acceptable subsystem divisions.
Options: a. Select Edit > Select > Column from the menu b. Click the column heading letter c. Hold down the shift key as you click anywhere in the column. d. Hold down the Ctrl key as you click anywhere in the column