SOLVED!!!Cross DB Link INNER JOIN resultingin 0 rows returned????

Question

Has anyone had experience with a JOIN not returning the result that the data shows it should?
I am writing a query to join two tables across DBs and I know that most of the IDs in the joining columns do in fact match, but when I INNER JOIN, no rows are returned. As you would expect, a LEFT OUTER JOIN RESULTS in my right table showing and a full set of null values for each of the columns of the newly joined table.
Has anyone come across this behavior?
I can even do a select on the table to be joined and use the where clause to show that some of the values from the first table do in fact existed within the table to be joined.
I'm frustrated and a little confused.
Can anyone help?
Message was edited by:
DPotter

Answer 1

Are the columns on which you are joining are of DATE datatype? If yes then without TRUNC you will be in trouble.
If it is not the case give column datatypes and sample data.
See the simple example below:
SQL> SELECT 1 VAL
FROM DUAL
WHERE SYSDATE = TO_DATE('08-MAY-2008','DD-MON-YYYY') ;  2    3 
no rows selected
SQL> SELECT SYSDATE
FROM DUAL;  2 
SYSDATE
08-MAY-08
SQL>
SELECT 1 VAL
FROM DUAL
WHERE TRUNC(SYSDATE) = TO_DATE('08-MAY-2008','DD-MON-YYYY') ;SQL>   2    3 
       VAL
         1