Answer:
NULL is the correct answer of this question.
Explanation:
The insert statement is used for inserting a column list into the database this statement is an under Data Manipulation language.When we insert any column into the database there is always a null value stored.
- Insert statement is used to insert the data into the database .
- To insert data following syntax is used:-
insert into tablename (column data type).
- When we insert any data into the database the default value is stored is bull.
If an error occurs within a program, each of the numeric functions would return a <u>null value</u>.
<h3>What is a function?</h3>
A function refers to a named portion of a block of executable code that is written to perform a specific task, which is usually a single, related action.
Thus, a function comprises a group of related statements (block of code) that would only run and returns a data when it is called.
In Computer programming, if an error occurs within a program, each of the numeric functions would return a <u>null value</u>.
Read more on a function here: brainly.com/question/19181382
#SPJ12
SSD stands for system sequence diagrams. SSd diagrams <span>model the interactions between objects in a single use case and illustrate how the different parts of a </span>system<span> interact with each other </span>
On an SSD, a dashed arrow usually represents an object. SSD <span>depicts the </span>objects<span> and classes involved in the scenario and the </span>sequence<span> of messages exchanged between the </span><span>objects.</span>
Explanation:
Monitoring someone's emails,voice mails and computer files is considered is illegal because you are accessing someone's personal information which is not regarded as ethical .
There are certain reasons where one's email,voice mails and computer files can be monitored are as following:
- Protect the security information and security.
- Investigation of complaints of harassment.
- Preventing personal use of employer's facilities.
Answer:
Four buttons are needed for this application
Explanation:
The user activities such as entering the user name, subject, preferred appointment time and phone number are done using a text box. Typically, a text box is used to display, or accept as input, texts from the user.It is a graphical control element intended to enable the user to input text information to be used by the program.
Only activities such as submission of requests, Printing appointment request, clearing the screen and exiting the application, will require the user to click on a button. The buttons should be properly labelled and made to function on click/trigger.
