Re: SQL0203 - Name xxxx is ambiguous, when using JOIN USING

Just to update the list...

SQL Fiddle shows the query as working with Oracle 11gR2 and MySQL 5.6.6m9
http://sqlfiddle.com/#!4/ad8c0

Those of you on already on Stackoverflow may have seen my post there:
https://stackoverflow.com/questions/26493845/three-or-more-tables-join-using-common-key

Interestingly, neither DB2 10.5 for LUW nor DB2 10 for z/OS support the
JOIN USING syntax at all. So I guess it's nice to get something first, but
then of course you get to work the bugs out!

Charles



On Thu, Oct 16, 2014 at 3:18 PM, Charles Wilt <charles.wilt@xxxxxxxxx>
wrote:

I'm getting SQL0203 - Name MYKEY is ambiguous
with the following:

select mykey, flda, fldb, fldc
from tbla
join tblb using (mykey)
join tblc using (mykey)
^---cursor positioned here...

I've tried adding parens (in various places), but get the same error.

CREATE TABLE QTEMP/TBLA (MYKEY CHAR (10 ) NOT NULL WITH DEFAULT,
FLDA CHAR (10 ) NOT NULL WITH DEFAULT)

CREATE TABLE QTEMP/TBLB (MYKEY CHAR (10 ) NOT NULL WITH DEFAULT,
FLDB CHAR (10 ) NOT NULL WITH DEFAULT)

CREATE TABLE QTEMP/TBLC (MYKEY CHAR (10 ) NOT NULL WITH DEFAULT,
FLDC CHAR (10 ) NOT NULL WITH DEFAULT)

Running 7.1 TR6