org.h2.jdbc.JdbcSQLException: Column "Salman" not found;

Try to use '' (single quotes) instead of "" (double quotes). I think it's a problem in H2 library

The behavior of compiler to make such an error is still a question for me, but I managed to handle this error using this single quote '' rather than double quote ""

I use this

insert into customer(id,name,lastname) values(1,'name','Lastname')

rather than

 insert into customer(id,name,lastname) values(1,"name","Lastname")