Recall & Review
beginner
What is the range of values for a signed TINYINT in MySQL?
A signed TINYINT can store values from -128 to 127.
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beginner
What is the difference between signed and unsigned integer types in MySQL?
Signed integers can store both negative and positive numbers, while unsigned integers can only store zero and positive numbers, effectively doubling the positive range.
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beginner
How many bytes does a BIGINT use in MySQL?
A BIGINT uses 8 bytes of storage.
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intermediate
What is the maximum value of an unsigned INT in MySQL?
The maximum value of an unsigned INT is 4,294,967,295.
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intermediate
Why would you choose BIGINT over INT in a database column?
You choose BIGINT when you need to store very large integer values that exceed the range of INT, such as very large counts or IDs.
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Which integer type uses the least storage space in MySQL?
✗ Incorrect
TINYINT uses 1 byte, which is less than INT (4 bytes) and BIGINT (8 bytes).
What is the maximum value of a signed INT in MySQL?
✗ Incorrect
A signed INT ranges from -2,147,483,648 to 2,147,483,647.
How many bytes does an INT use in MySQL?
✗ Incorrect
INT uses 4 bytes of storage.
Which integer type can store the largest positive number in MySQL?
✗ Incorrect
BIGINT can store the largest positive number because it uses 8 bytes.
What happens if you insert a value larger than the maximum allowed in a TINYINT column?
✗ Incorrect
MySQL throws an error or truncates the value to the maximum allowed for the column type.
Explain the differences between TINYINT, INT, and BIGINT in MySQL including their storage size and value ranges.
Think about how much space each type uses and how big the numbers can be.
You got /5 concepts.
Why is it important to choose the correct integer type for a database column?
Consider what happens if the number is too big or too small for the chosen type.
You got /4 concepts.