The function returning reference to hash of row values is . . . . . . . .
A. fetchrow_array()
B. fetchrow_arrayref()
C. fetch()
D. fetchrow_hashref()
Answer: Option D
Solution (By Examveda Team)
This question is about how to get data from a MySQL database in a way that's easy to work with in your code. Imagine you're asking the database for information about a student, and you want to store the student's name, age, and grade in separate variables. Here's the breakdown:Option A: fetchrow_array() - This function returns an array, meaning the data will be stored in a numbered list like this:
``` [0] => name [1] => age [2] => grade ```
Option B: fetchrow_arrayref() - Similar to Option A, this also gives you an array, but it's a bit more advanced for programmers who know about references.
Option C: fetch() - This is a more general function that can give you data in different formats, but it's not specifically designed for a nicely organized hash.
Option D: fetchrow_hashref() - This is the answer! It returns a hash, which means the data is stored like a dictionary with key-value pairs, making it easy to access specific information directly:
``` name => "John Doe" age => 12 grade => "A" ```
So, the correct answer is Option D: fetchrow_hashref() because it returns a hash (like a dictionary) containing all the values of the row, making it easy to access individual data points.
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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