Answer:
True is the correct Answer for the above question.
Explanation:
- Computer security is a security in which data of the computer is secured from the access of unauthorized users. It is primarily achieved to stop the access grant to the unauthorized user.
- It means that there is an authorization point which decides that the user is authorized or not. If the user is authorized then only he can enter the system otherwise he can not able to enter the system.
- It helps to secure the data and the data is the important point of the computer system.
- The question also states the same which is described above. Hence true is the correct answer.
Answer: <em><u> How to code for a database? A database is an organized collection of data, generally stored and accessed electronically from a computer system. Where databases are more complex they are often developed using formal design and modeling techniques. </u></em>
WWW. Wikipedia.com
Explanation: When creating a database first you need to make a software program then you need to start planing on what to do ...
{ A database management program (DBMS) is a software package design designed to manipulate, define, retrieve, and manage data in database.
A DBMS generally manipulates the data itself, the the data format, field names, record structure and file structure.}
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Answer:
The Statement for selecting values from the table in SQL is given below,
SELECT vendor_name, vendor_contact_last_name, vendor_contact_first_name FROM Vendors;
Explanation:
SQL stands for Structured query language which is used to insert, update, delete and modify the value in a table.
There are five types of SQL-
1. Data definition language
2. Data manipulation language
3. Data control language
4. Transaction Control Language
5. Data Query Language
The SELECT statement comes under DDL which is used to select and display values from a table.
We can use select statement in two ways-
1. SELECT column_name1, column_name2 ........column_nameN FROM Table_name;
2. SELECT * FROM tablename; ( This is used to select all values from the table name)
We can also give conditions using WHERE clause while selecting values.
