Which is the correct SQL statement?

In the context of SQL, the correct SQL statement is option 4 which refers to the SELECT*FROM employees. In it the :

SELECT: This keyword is used to fetch all the data from a particular Database. The SELECT statement is used in the query of the database and also retrieves the data. It is the primary way to get data out of the database.

*: This refers to “all columns”. It defines that you need to select all the columns from the specific table. If you want only specific columns then you should try to use SELECT employee_id, first_name, and last_name FROM employees.

FROM: This keyword would specify the table from which to retrieve the data.

Employees: this is the name of the table from which data is being fetched.

Example with the specific columns:-

    SELECT employee_id, first_name, last_name FROM employees;

Adding a condition

You can also add a condition to filter the data by using the WHERE Clause. For example, for selecting the employees from a specific department, you should try:-

SELECT * FROM employees WHERE department = ‘Sales’;

Ordering results

To sort the results, you can use the ORDER BY clause.

SELECT * FROM employees ORDER BY last_name ASC;

Limit the results

To limit the number of rows returned, you can use the LIMIT Clause.

SELECT * FROM employees LIMIT 10;