The AUTO_INCREMENT sequences normally begin at . . . . . . . .
A. 0
B. 1
C. -1
D. 2
Answer: Option B
Solution (By Examveda Team)
This question is about how MySQL handles AUTO_INCREMENT columns, which automatically assign unique numbers to each new row in a table.Think of AUTO_INCREMENT like a counter that starts at a specific number. We need to figure out where that counter begins.
The correct answer is Option B: 1.
By default, MySQL sets the starting value of the counter to 1 for AUTO_INCREMENT columns. This means the first row you add to the table will have a value of 1 in the AUTO_INCREMENT column, the second row will get 2, and so on.
Here's why the other options are incorrect:
* Option A: 0 - AUTO_INCREMENT usually doesn't start at 0.
* Option C: -1 - AUTO_INCREMENT usually starts with positive numbers.
* Option D: 2 - While you can change the starting value of AUTO_INCREMENT, the default is 1.
Remember: AUTO_INCREMENT is a helpful tool for automatically managing unique IDs in your database.
Let me know if you want to learn more about AUTO_INCREMENT or other MySQL concepts!
Related Questions on MySQL Miscellaneous
How is communication established with MySQL?
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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