ms sql server 2008/2012 builds but no results

[alex440440]

this is a basic test script and I get no results on it.

it runs in ms sql 2008 with the following results: 3 main3 1 3 1 sec3 1 2 main2 2 2 2 sec2 2 1 main1 3 1 3 sec1 3

why can it be?

IF OBJECT_ID('sec', 'U') IS NOT NULL DROP TABLE sec go

IF OBJECT_ID('interm', 'U') IS NOT NULL DROP TABLE interm go

IF OBJECT_ID('main', 'U') IS NOT NULL DROP TABLE main go

create table main( id int not null identity, descr nvarchar(100) )

go

alter table main add primary key (id) go

insert into main (descr) values ('main1'),('main2'),('main3') go

create table sec( id int not null identity, main_id int not null, slave_name nvarchar(100) )

go

alter table sec add constraint fk_sec_main_id FOREIGN KEY (main_id) REFERENCES main(id) go

insert into sec(main_id,slave_name)values (3,'sec3'),(2,'sec2'),(1,'sec1')

go

create table interm ( id int not null identity, main_id int not null, )

go

alter table interm add primary key (id) go

insert into interm (main_id) select main_id from sec go

alter table sec drop constraint fk_sec_main_id go

alter table sec drop column main_id go

alter table sec add interm_id int go

alter table sec add constraint fk_interm_mainId foreign key (interm_id) references interm(id) go

update sec set interm_id=id go

select * from main join interm on main.id=interm.main_id join sec on sec.interm_id=interm.id go

[jakefeasel]

Works fine for me : http://sqlfiddle.com/#!3/13eac/2