In a real-world environment, changing granularity requirements might dictate changes in primary key selection, and those changes might ultimately require the use of surrogate keys.
Explanation:
A surrogate key is a unique identity as an object or entity. It is used as an object in the database and as an entity in the modern world. Surrogate key is not a natural key hence it cannot be derived from application data.
Advantages of using surrogate key:
- They are unique
- They have uniform rules
- It allows unlimited values
- It stands the test of time
Answer:
f = open('students.txt', 'r')
Explanation:
In the computing world, a command is an instruction to a computer program to execute a particular task. These instructions might be issued via a command-line interface, such as a shell program, or as a input to a network service as a component of a network protocol, or can be instructed as an event in a graphical user interface activated by the respective user selecting an option in a menu.
the f = open('students.txt', 'r') command line would be used to open a file named "students.txt", There are also various other types of commands for executing different task, for example:
1. ASSOC for Fix File Associations
2. FC for File Compare
3. IPCONFIG for IP Configuration
4. NETSTAT for Network Statistics
5. PING for Send Test Packets
6. TRACERT for Trace Route
7. POWERCFG for Power Configuration
e.t.c.
Answer:
The answer of the following blank is Cyberterrorism
.
Explanation:
Cyberterrorism is the violent act by the use of an internet that results in the threat of any important files or the loss of life or the significance of the bodily harms, to achieve an ideological or political gains through the threat or the intimidation.
Hello there!
Answer:
Have included productivity improvements (doubling the number of
deliveries for a speci²c time period), enhanced inventory management,
automation of picklists, better resource planning, and more e±ective reporting to
key stakeholders. Evolution’s CRM system can determine deliveries planned for
any future month and the amount of product in stock, helping Evolution reduce
stock holding by 40%. When a new patient is keyed onto system, tasks can be
generated for Evolution’s team to organize delivery ahead of time. The system
automatically generates a pick list for that patient from Evolution’s pharmacy.
Managers can see tasks 2 weeks ahead and can allocate resources accordingly.
Hoping this helps you! :D
