What is the difference between signed and unsigned in MySQL? And what does signed and unsigned mean?
What is the difference between signed and unsigned in MySQL? And what does signed
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What is the difference between signed and unsigned in MySQL? And what does signed and unsigned mean?
Unsigned numbers do not have the minus sign. Unsigned number can be only positive or zero (e.g. 123, 0). Signed numbers can be also negative (e.g. -42).
This answer explains the difference throughly.