Oracle
1Z0-882 · Question #21
Assume the user has just connected to the MySQL server. What is the result of the query SELECT @ a?
The correct answer is B. A single NULL. See the full explanation below for the reasoning.
Question
Assume the user has just connected to the MySQL server. What is the result of the query SELECT @ a?
Options
- AAn error that @ a is undefined
- BA single NULL
- CAn empty string
- DThe value of GLOBAL variable @ a
How the community answered
(25 responses)- A12% (3)
- B76% (19)
- C8% (2)
- D4% (1)
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