Vidyalelo
MySQL · Q522

MySQL

Programming · MySQL · question 522

Q522

What will be the output of the following MySQL command? SELECT * FROM employee WHERE (title=’HEAD TELLER’) OR (start_date=2013-01-24);

A.
All columns and rows belong to table employee
B.
All columns but only those rows which contain 'HEAD TELLER' as a "title" or 2013-01-24 as a "start_date"
Answer
C.
All rows belong to table employee
D.
None of the mentioned

Answer: Option B

Solution

Answer: Option B
Solution:
This question is asking you about a specific MySQL command. This command is used to select data from a table called "employee". Let's break down the command:

SELECT *: This part tells MySQL to retrieve all the columns from the "employee" table.

FROM employee: This indicates the table we're working with – the "employee" table.

WHERE (title=’HEAD TELLER’) OR (start_date=2013-01-24): This is a filter. It tells MySQL to only show rows where either:

* The "title" column has the value 'HEAD TELLER' OR
* The "start_date" column has the value 2013-01-24

So, the correct answer is Option B: The command will output all the columns from the "employee" table, but it will only include rows where either the title is 'HEAD TELLER' or the start date is 2013-01-24.

Let me know if you would like more explanation on any specific part of this!