The correct answer: Data independence
Data independence<span> is the type of </span>data<span> transparency that matters for a centralised DBMS. It refers to the immunity of user applications to changes made in the definition and organization of </span>data<span>. Physical </span>data independence<span> deals with hiding the details of the storage structure from user applications.
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The logical<span> structure of the data is known as the 'schema definition'. In general, if a user application operates on a subset of the </span>attributes<span> of a </span>relation<span>, it should not be affected later when new attributes are added to the same relation. Logical data independence indicates that the conceptual schema can be changed without affecting the existing schemas.
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<span>The physical structure of the data is referred to as "physical data description". Physical data independence deals with hiding the details of the storage structure from user applications. The application should not be involved with these issues since, conceptually, there is no difference in the operations carried out against the data.</span>
Answer:
Maybe computer engineering and marketing skills
Answer:
18
Explanation:
lets go step by step.
the function called tryIt has a value, a variable named "a". this "a" variable will be whatever the user enters when the program says, Enter a number.
ok so if we enter "a" as 2, and b in the function will always be 7, and 2 + 7 equals 9,
and the ans variable (short for answer) will take the result of the function (9) and multiply it by 2,
then the answer is 18
Answer:
<em>The programming language in Python is as follows:-</em>
#Prompt user for input string
userinput = input("Enter a string: ")
#Print the last character of the input
print("The last character is "+userinput[-1])
#End of Program
Explanation:
This line is a comment
#Prompt user for input string
This line prompts user for input
userinput = input("Enter a string: ")
This line is also a comment
#Print the last character of the input
This next line prints the last character of the input string; the last character is defined by the index -1
print("The last character is "+userinput[-1])
