Answer: (D) Database design follows the twelve principles proffered by Dr. Edgar F. Codd
Explanation:
The relational database is basically based on the relational model of the data which is proposed by the Dr Edger F. codd and he mainly introduced the twelve basics principle of the database designing in the database system. He also contributed various valuable principle in the computer science.
The twelve principle are:
- The first rule of the relational database is the information rule as it represented all data or information
- Independence of the integrity
- Viewing various updating rule
- Logically treatment of various NULL value
- Independence of the physical database
- Distribution in-dependency
- Various delete, insert and update rules
- The overall logical description of the database are basically stored in the database directory
- There is no subversion rule
- There is guarantee accessing rule
- Proper rule for data language
- The relational database level actions
1) True. Customized screens provide an easy way to enter and view data in a table and query called reports.
2) True. New Database can be created using a blank database.
3) False. Queries are used to find specific data.
4) True. When a new database is created, we can find more than one database objects.
5) False. The primary key is to be set unique. As it identifies an entire row in the column.
1) Status Bar = Displays button to change the page views.
2) Hyper Link = A Link to an Internet Resource.
3) Field = Information arranged vertically in a table.
4) Report = Data from a table or query in printed format.
5) Record = Information arranged horizontally in a table.
Answer:
The Fastest car in the world would be between 1,184 Horse Power-1,106 Torque
Explanation:
Energy from sources that can be regenerated or reused is called renewable energy.
Renewable energy is energy that can be replenished on a human timescale like hydro-electric power, solar energy and wind power. Geothermal energy is also considered renewable energy.
Answer:
The correct answer to the following question will be "NORM.S.INV".
Explanation:
- The NORM.IN.V function in Excel determines the opposite of the Cumulative Standard Distribution Function for just a value of x which is given, and the standard deviation and mean of the distribution provided. The probability of NORMINV(mean, probability, standard deviation).
- In Excel 2010, the standard. S. Inv function is new and is therefore not easily accessible in Excel's earlier versions.
Therefore, NORM.S.INV is the right answer.
