Hello,
here is the problem I'm having with HSQLDB (1.7.2 alpha T):
I have three tables:
1/ one describing a set of person:
create table person (
id integer primary key, -- internal code
name varchar(20) -- external code
)
2/ one that contains a subset of persons with more informations:
create table external (
name varchar(20), -- external code
birthday date
)
3/ and the last is the same but with internal codes:
create table internal (
name integer, -- internal code
birthday date
)
giving the data:
insert into person values (1,'jhon');
insert into person values (2,'jim');
insert into person values (3,'bob');
and:
insert into external values ('bob',now);
insert into external values ('jhon',now);
insert into external values ('jim',now);
insert into external values ('bob',now);
insert into external values ('julia',now);
I would like to convert the data in the external table into the internal table:
i.e. expected result in table internal:
name | birthday
3 | 12-02-2003
1 | 12-02-2003
2 | 12-02-2003
3 | 12-02-2003
null | 12-02-2003
So I thought the following statement would do it:
1/ insert into internal (name,birthday) (select (select p.id from person p where
p.name=ext.name), ext.birthday from external ext);
but it gives me the following error: Unexpected token: ( in statement [insert into
internal (name,birthday) (]
I tried with:
2/ insert into internal (name,birthday) select (select p.id from person p where
p.name=ext.name), ext.birthday from external ext;
but then I get:
Column count does not match in statement [insert into internal (name,birthday) values
(select (select p.id from person p where p.name=ext.name),
ext.birthday from external ext)]
And at last:
3/ insert into internal (name,birthday) select (select p.id from person p where
p.name=ext.name), ext.birthday from external ext;
gives me:
Single value expected
What can I do?
Thanks for any comment :-),
Loïc
ps: 1/ works well under Oracle (replacing now with sysdate)
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