What will be the output of the following MySQL command?
SELECT *
FROM employee
WHERE (title=’HEAD TELLER’) OR (start_date=2013-01-24);
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"
C. All rows belong to table employee
D. None of the mentioned
Answer: Option B
Solution (By Examveda Team)
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!
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