Prerequisite: Create Table

   create table employees(id NUMBER,name VARCHAR2(20),city VARCHAR2(100));
   select * from employees;

Task 1.1: Insert Records

    insert into employees (id,name) values (1,'Naresh');

    insert into employees (id,name ) values (2,'Prabhu'),(3,'Siva');

Task 1.2: Display Records

    select * from employees;

Task 2.1: Update single column for all Rows

    update employees set city='Chennai';

Task 2.2: Update multiple column for the given employee id

    update employees set name='Naresh Kumar' , city='Chennai' where id =1 ;

Task 3: Delete a specific record

    delete from employees where id = 1;

Task 4: Delete all rows

    delete from employees;