
Database #3
Flashcard
•
Computers
•
10th Grade
•
Practice Problem
•
Hard
Alan Hutchison
FREE Resource
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14 questions
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1.
FLASHCARD QUESTION
Front
Why is it important to identify data sources in a database?
Back
Identifying data sources gives credit to the original data providers and allows users to check the database's accuracy.
2.
FLASHCARD QUESTION
Front
How has technology impacted data input?
Back
Technology has made data input fast and reliable by minimizing human intervention, saving time, and reducing errors.
3.
FLASHCARD QUESTION
Front
What is data accuracy?
Back
Data accuracy is the extent to which data is free from errors, which can be caused by mistakes in gathering or entering data, mismatches, or outdated information.
4.
FLASHCARD QUESTION
Front
What are validation checks in a DBMS?
Back
Validation checks ensure that the data entered is acceptable, sensible, or reasonable. They include range check, list check, type check, and check digit.
5.
FLASHCARD QUESTION
Front
What is a range check?
Back
A range check is used when data is restricted to a small range of values, such as ensuring a date does not exceed the number of days in a month.
6.
FLASHCARD QUESTION
Front
What is a list check?
Back
A list check compares data to a set of accepted data, such as validating state abbreviations.
7.
FLASHCARD QUESTION
Front
What is a type check?
Back
A type check determines if the data type is correct, such as ensuring age is entered as a number.
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