How to Create And Execute Function With Refcursor in Postgresql Create Two Tables create table EmployeeDetails (EmployeeId serial primary key,FirstName varchar(60), LastName varchar(60),Place varchar(100),Country varchar(40),PhoneNo varchar(40),password varchar(100)); create table RoomDetails (RoomId serial primary key ,RoomName varchar(100),RoomSize varchar(20)) Insert Values Insert into RoomDetails(RoomName,RoomSize) values('Abdul kalam','10'), ('aryabhata','15'), ('Nasa','20'), ('vivekananda','10'), ('Rohini','5'); insert into EmployeeDetails(FirstName,LastName,Place,Country,PhoneNo,password) values('Vasanth', 'R','SGRI', 'India','8056512886','hello'), ('Ram', 'S', 'SGRI', 'India', '9366180976','hello'), ('Ravi', 'E', 'SGRI','India', '12345678...