В операторе SQL
SELECT EmpId,
Salary+Variable as TotalSalary
FROM EmployeeSalary;
Fair Falcon
SELECT EmpId,
Salary+Variable as TotalSalary
FROM EmployeeSalary;
SELECT EmpId FROM EmployeeDetails
UNION
SELECT EmpId FROM EmployeeSalary;
(IN) operator in sql like "OR" operator
For example:
Select * From employees
Where department_id "IN" (60,90);