SELECT * FROM hr.employees;
SELECT first_Name FROM hr.employees;
SELECT * FROM hr.employees
WHERE last_name = 'King';
SELECT COUNT(*) FROM hr.employees;
SELECT SUM(salary) FROM hr.employees;
SELECT MAX(salary) FROM hr.employees;
SELECT MIN(salary) FROM hr.employees;
SELECT avg(salary) FROM hr.employees;
SELECT * FROM hr.employees
WHERE salary > 6000;
SELECT * FROM hr.employees
WHERE DEPARTMENT_ID = 60
AND salary>6000;
SELECT first_name, last_name, salary FROM hr.employees
WHERE DEPARTMENT_ID = 60
AND salary>6000;
SELECT * FROM hr.employees
WHERE salary > (SELECT avg(salary) FROM hr.employees);
SELECT * FROM hr.employees
WHERE first_name LIKE 'S%';
SELECT * FROM hr.employees
WHERE last_name LIKE '%n';
SELECT * FROM hr.employees
WHERE last_name LIKE '%n%';
SELECT COUNT(DISTINCT(EMPLOYEE_ID)) FROM hr.employees;
SELECT DISTINCT(salary) FROM hr.employees;
SELECT * FROM hr.employees
WHERE COMMISSION_PCT IS NULL;
SELECT * FROM hr.employees
WHERE COMMISSION_PCT IS NOT NULL
AND manager_id != 100;
SELECT * FROM hr.employees
WHERE salary = 9000
OR salary = 7500;
SELECT * FROM hr.employees
WHERE HIRE_DATE > '09-DEC-06';
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