mysql row subquery

Case #: Query number of employees and the highest minimum wage employee information

SELECT *
FROM employees
WHERE (employee_id,salary)=(

    SELECT MIN(employee_id),MAX(salary)
    FROM employees
);

Evolution comes from the following code

SELECT *
FROM employees
WHERE employee_id=(
    SELECT MIN(employee_id)
    FROM employees
) AND salary=(
    SELECT MAX(salary)
    FROM employees
);

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Origin blog.51cto.com/14437184/2438296