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What does the AUTO_INCREMENT sequences normally begin at?(a) 0(b) 1(c) -1(d) 2The question was asked in an online interview.My doubt stems from Internal Security: Preventing Unauthorized Filesystem Access topic in section Access Control and Security of MySQL |
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Answer» RIGHT CHOICE is (b) 1 To elaborate: The AUTO_INCREMENT column ATTRIBUTE provides unique numbers for column identification. AUTO_INCREMENT sequences normally begin at 1 and increase MONOTONICALLY LIKE 1, 2, 3, and so on. |
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