A composite primary key<span> is a set of several primary </span>keys<span> that, together, uniquely identifies each record.</span>
Primary keys are used as identifiers of composite entities. In this case each primary key combination is allowed only once in the *:* relationship.
Other case where primary keys are used is as identifiers of weak entities, where the weak entity has a strong identifying relationship with the parent entity.
Answer:
user_string = input("Input a string : ")
output = user_string.isnumeric()
if output == True:
print("yes")
else:
print("no")
Explanation:
- First of all check whether user input have all numeric value or not
.
- Display yes if string contain all numeric values
.
- Display no if string contain at least one non - integer character
.
Answer:
maybe select an instrument
foud6gdjyrxyutwrhgcghkiyiyofjxgxhdttenhdjgxjxjgztujxjxufudtduyyd6rdgtsufoud6gdjyrxyutwrhgcghkiyiyofjxgxhdttenhdjgxjxjgztujxjxufudtduyyd6rdgtsufoud6gdjyrxyutwrhgcghkiyiyofjxgxhdttenhdjgxjxjgztujxjxufudtduyyd6rdgtsufoud6gdjyrxyutwrhgcghkiyiyofjxgxhdttenhdjgxjxjgztujxjxufudtduyyd6rdgtsufoud6gdjyrxyutwrhgcghkiyiyofjxgxhdttenhdjgxjxjgztujxjxufudtduyyd6rdgtsufoud6gdjyrxyutwrhgcghkiyiyofjxgxhdttenhdjgxjxjgztujxjxufudtduyyd6rdgtsufoud6gdjyrxyutwrhgcghkiyiyofjxgxhdttenhdjgxjxjgztujxjxufudtduyyd6rdgtsufoud6gdjyrxyutwrhgcghkiyiyofjxgxhdttenhdjgxjxjgztujxjxufudtduyyd6rdgtsufoud6gdjyrxyutwrhgcghkiyiyofjxgxhdttenhdjgxjxjgztujxjxufudtduyyd6rdgtsufoud6gdjyrxyutwrhgcghkiyiyofjxgxhdttenhdjgxjxjgztujxjxufudtduyyd6rdgtsufoud6gdjyrxyutwrhgcghkiyiyofjxgxhdttenhdjgxjxjgztujxjxufudtduyyd6rdgtsufoud6gdjyrxyutwrhgcghkiyiyofjxgxhdttenhdjgxjxjgztujxjxufudtduyyd6rdgtsufoud6gdjyrxyutwrhgcghkiyiyofjxgxhdttenhdjgxjxjgztujxjxufudtduyyd6rdgtsufoud6gdjyrxyutwrhgcghkiyiyofjxgxhdttenhdjgxjxjgztujxjxufudtduyyd6rdgtsufoud6gdjyrxyutwrhgcghkiyiyofjxgxhdttenhdjgxjxjgztujxjxufudtduyyd6rdgtsufoud6gdjyrxyutwrhgcghkiyiyofjxgxhdttenhdjgxjxjgztujxjxufudtduyyd6rdgtsufoud6gdjyrxyutwrhgcghkiyiyofjxgxhdttenhdjgxjxjgztujxjxufudtduyyd6rdgtsufoud6gdjyrxyutwrhgcghkiyiyofjxgxhdttenhdjgxjxjgztujxjxufudtduyyd6rdgtsufoud6gdjyrxyutwrhgcghkiyiyofjxgxhdttenhdjgxjxjgztujxjxufudtduyyd6rdgtsufoud6gdjyrxyutwrhgcghkiyiyofjxgxhdttenhdjgxjxjgztujxjxufudtduyyd6rdgtsu
Answer: (D) Must always have a data store if there are paper documents involved.
Explanation:
A system flowchart is basically responsible for displaying the data in the system and also control the flow of data. The system flowchart are basically use various graphic symbol for representing the systematic manner for processing the output.
It basically contain data store in the system if there is data documents present in the system so that it make easy to store the data in the system.
There are basically four symbols that is use to represent in the program flowchart is that are: Firstly start, processing, decision making and then end.
