What will be the output of the following MySQL command?
SELECT *
FROM employee
WHERE (title=’HEAD TELLER’) AND (start_date>2013-01-24);
SELECT *
FROM employee
WHERE (title=’HEAD TELLER’) AND (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" and start_date are greater than 2013-01-24
C. All rows belong to table employee
D. None of the mentioned
Answer: Option B
Solution (By Examveda Team)
This MySQL command retrieves data from the "employee" table. Let's break down the command:SELECT *: This selects all columns (fields) from the "employee" table.
FROM employee: This specifies the table from which we want to retrieve data.
WHERE (title=’HEAD TELLER’) AND (start_date>2013-01-24): This is a filter that limits the results based on two conditions:
(title=’HEAD TELLER’): It selects only rows where the "title" column is exactly equal to 'HEAD TELLER'.
(start_date>2013-01-24): It selects only rows where the "start_date" column is greater than the date '2013-01-24'.
Therefore, the output will be:
Option B: All columns but only those rows which contain 'HEAD TELLER' as a "title" and start_date are greater than 2013-01-24
This command will fetch all columns from the "employee" table, but it will only include those rows that meet both criteria: their title is 'HEAD TELLER', and their start date is later than 2013-01-24.
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