Which of these return a result to the client?
A. Stored functions
B. Stored procedures
C. Triggers
D. Events
Answer: Option A
Solution (By Examveda Team)
This question asks which of the following MySQL components send data back to the user (or client) who requested it.Let's break down each option:
Option A: Stored functions: Stored functions are like mini-programs stored within the database. They perform a specific task and always return a value. Think of them like a calculator: you give it some numbers and it gives you back the result.
Option B: Stored procedures: Similar to stored functions, they perform a series of actions. But, they can optionally return a value. They are more versatile and can also modify data in the database.
Option C: Triggers: Triggers are automatic actions that happen when something specific occurs in the database (like adding a new row). They don't directly return data to the client, but they can modify data.
Option D: Events: Events are scheduled actions that happen at a specific time or after a specific event. Like triggers, they also don't directly return data to the client. They are often used for automated tasks.
So, the answer is:
A: Stored functions and B: Stored procedures.
They can both send data back to the client who called them.
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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