use ch17_samples
go

create table sample_table_1 
(
	col_1 char(5) not null,
	col_2 int null,
	col_3 varchar(15) null	
);
go

create table sample_table_2 
(
	col_1 char(5) not null,
	col_2 int null,
	col_3 varchar(15) null	
);
go

create table sample_table_3 
(
	col_1 char(5) not null,
	col_2 int null,
	col_3 varchar(15) null	
);
go

create table sample_table_4
(
	col_1 char(5) not null,
	col_2 int null,
	col_3 varchar(15) null	
);
go