//insert query
insert into persons(LastName, FirstName) VALUES ('Poudel', 'Ashish', 'He is space engineer');
//select query *->all
SELECT * from persons where PersonId = '2' or Address='Thankot';
SELECT * from persons where PersonId = '3' and Address='Thankot';
//update query update persons set FirstName = 'Darth Vader', Details ='He is father of Luke Skywalker.' where PersonID = '2';
//delete query
delete from persons where FirstName = 'Darth Vader';