Identify the three packages of RSLogix software matching each to the controllers for which the package is used.
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There are three different packages of RSLogix software:
1) RSLogix 5000 is for the ControlLogix family of programmable automation controllers.
2) RSLogix 5 is for programming the Allen-Bradley PLC-5.
3) RSLogix 500 is for the SLC 500 family of PLCs, which also includes the MicroLogix.
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Write a table creation script for a table called OWNER. Include the following:
• Column for the owner id; primary key • Column for the owner username (i.e., the logon name); unique and not null • Column for the owner’s first name; can be null • Column for the owner’s last name; can be null Determine the appropriate data types. ``` CREATE TABLE owner ( owner_id NUMBER NOT NULL CONSTRAINT OWNER_PK PRIMARY KEY, user_name VARCHAR2(30) NOT NULL CONSTRAINT OWNER_UK1 UNIQUE, first_name VARCHAR2(30) NULL, last_name VARCHAR2(30) NULL) ``` a) Add a row to OWNER using the following values: • Owner id = 20 • Owner username = Cartman_E • Owner first name = Eric • Owner last name = Cartman b) Create a sequence called SEQ_OWNER. Write a SELECT statement to find out the highest value currently in the OWNER table. Start the sequence at that value plus one when you create it. c) Add to OWNERS table all the entries in the STUDENT table using an INSERT INTO…SELECT. Use the sequence number to generate the owner id. Construct the owner username using string functions and appending the student id to insure uniqueness (use the format MORRISON_A_122).
Give an example of the insertion anomaly.
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The Children’s ____ Privacy Protection Act regulates how Web sites can collect information from minors and communicate with them.
A. Online B. Web C. Internet D. Electronic
Figure 8.12 shows an example of an EER diagram for a small private airport database that is used to keep track of airplanes, their owners, airport employees, and pilots. From the requirements for this database, the following information was collected: Each airplane has a registration number [Reg#], is of a particular plane type [of_type], and is stored in a particular hangar [stored_in]. Each plane_type has a model number [Model], a capacity [Capacity], and a weight [Weight]. Each hangar has a number [Number], a capacity [Capacity], and a location [Location]. The database also keeps track of the owners of each plane [owns] and the employees who have maintained the plane [maintain]. Each relationship instance in owns relates an airplane to an owner and includes the purchase date [Pdate]. Ea
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