What does the AUTO_INCREMENT sequences begin at by default?
A. 0
B. 1
C. -1
D. 2
Answer: Option B
Solution (By Examveda Team)
This question is about AUTO_INCREMENT in MySQL, which is a special feature that automatically assigns unique numbers to rows in a table.Imagine you have a table for storing students, and you want each student to have a unique ID number. You can use AUTO_INCREMENT to make this happen.
The question asks what the starting number for this automatic numbering is by default.
Here are the options:
* Option A: 0 - This is incorrect. AUTO_INCREMENT doesn't start at 0 by default.
* Option B: 1 - This is the correct answer! By default, AUTO_INCREMENT begins at 1.
* Option C: -1 - This is incorrect.
* Option D: 2 - This is incorrect.
So the answer is Option B: 1.
Related Questions on MySQL Miscellaneous
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A. SQL
B. Network calls
C. A programming language like C++
D. APIs
Which type of database management system is MySQL?
A. Object-oriented
B. Hierarchical
C. Relational
D. Network
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