I responded before this was moved to "... graph doubt 2". See my answer
there.
Adriano Crestani wrote:
Another doubt:
I have the following tables on my database:
create table B (
ID INTEGER NOT NULL PRIMARY KEY
);
create table A (
ID INTEGER NOT NULL PRIMARY KEY,
B_ID INTEGER,
FOREIGN KEY (B_ID) REFERENCES B(ID)
);
OK, then I was analyzing the generated sdo graph when I execute the query
"select * from A, B;", I got something like this:
Graph1:
http://cwiki.apache.org/confluence/download/attachments/45093/das_graph.JPG
I understand the column B_ID would be considered only an integer
column when
of table A when there is no B table returned on the query. However, the B
table is also returned on the query and as the B_ID column is a FK to the
table B, shouldn't the graph be like this?:
Graph2:
http://cwiki.apache.org/confluence/download/attachments/45093/das+
graph+as+I+suppose+it+shoud+be.JPG
<http://cwiki.apache.org/confluence/download/attachments/45093/das+graph+as+I+suppose+it+shoud+be.JPG>
This way I think the data returned by the query would be better
represented
on the graph. Maybe there is a reason for the graph to be generated as
Graph1 instead of Graph2.
What do you say guys?
Adriano Crestani
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