Outer Join
Date: 30 Mar 2001 18:46:51 GMT
Message-ID: <9a2kar$iuf$1_at_news.netmar.com>
[Quoted] I have two tables: 1) Employee Table, and 2) Lookup Table.
The primary key of the Employee table is SSN, and is also a foreign key
within
the Lookup table.
The primary key of the Lookup table is an ID number, indicating the type of [Quoted] information being looked up.
I'm interested in producing a list of all employees within a certain
department
along with certain items in this lookup table.
For instance, assume that the items in the lookup table I am interested have
ID
[Quoted] numbers of 20, 21, and 22, and the department number is 8765. Here's the
SQL statement I thought I would need.
select E.name,
L.item
from EmployeeTable E,
LookupTable L
where E.ssn = L.ssn(+)
and and L.id between 20 and 22
[Quoted] and E.dept = 8765;
When I run this, it only gives me a list of those employees who have lookup [Quoted] items of 20, 21, and 22. It does not include those employees who do not have these items.
Do I need to add something else to my outer join? Thanks.
Dennis Hancy
Eaton Corporation
Cleveland, OH
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