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create table students( id int, name varchar(255), village varchar(255) ); insert into students(id,name,village)values(1,'Naga','Boyapalem'),(2,'Vijay','Ysrcolony'),(3,'Rajesh','Gambheeram'); select*from students; alter table students add column emailid varchar(50); select*from students; update students set emailid='Naga@email.com' where name='Naga'; update students set emailid='Vijay@email.com' where name='Vijay'; update students set emailid='Rajesh@email.com' where name='Rajesh'; select*from students; select*from students where emailid like '%@email.com';

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