How to join two tables with no similar columns

Hi all,
I have two tables as follows:
Table T1 have Attributes as follows:
GLCODE,
BRANCH,
ITEM_NUMBER,
DEMAND_DATE,
QUANTITY,
SOURCE
Table T2 have Attributes as follows:
FORECAST_DATE
Now in SQL if run the following stattement iam getting out put.
SELECT GLCODE,BRANCH,ITEM_NUMBER,DEMAND_DATE,QUANTITY, SOURCE,(SELECT DISTINCT FORECAST_DATE FROM T2) FROM T1
The above SQL Statement giving correct results for me.
The same SQL Statement how can we implement in mapping level?
Regards,
Ava

Jaap van,
>
You have to specify an outer join, but how do you do that if there is no join to begin with? I would do the following (which I didn't test yet):
add an extra column (say C_JOIN) to the T2-ingroup of the join operator and fill it with from a constant operator with say value 1. Then use T2.C_JOIN (+) = 1 as the join condition.
If every record in T2 is guaranteed to have the same value, instead of using a deduplicator, which will read all records, sort them and deduplicate them, you can use a filter with filter condition ROWNUM < 2, which only will read one record.
I am facing almost the same problem but not entirely thou and I was wondering if you have an idea how to even start.
Problem:
I got this table:SQL> desc ita.tpis32_job_status
Name Null? Type
JOBID NOT NULL NUMBER
T1_ID NUMBER
QID NUMBER
REQ_TYPE VARCHAR2(10)
SUBMIT_TIME DATE
OWNERID VARCHAR2(30)
DESCRIPTION VARCHAR2(150)
STARTTIME DATE
ENDTIME DATE
STATUS VARCHAR2(50)
ERROR_ID NUMBER
TABLE_NAME VARCHAR2(30)
SERVER_ID VARCHAR2(10)
DATABASE VARCHAR2(20)
PRIORITY NUMBER
NUM_LINES NUMBER
PROCESS_ID NUMBER
QUE_TIME NUMBER
STATUS_CODE NUMBER
ERROR_MSG VARCHAR2(500)
NUM_LINES_TS NUMBER
REMOTE_STATUS NUMBER
This the above table, i am looking for JOBID (a five digit number) like 25875.
What I want to do is add or append this five digit number to a string to find the corresponding table in dba_tables or all_tables. The only way I have try to do this is by writing PLSQL as you see from here:
Re: Use PLSQL to delete tables dynamically
When the select is writing properly, the result of the five digit number from JOBID and the string should look like the below result (job_(five digit_%).
My problem is there is no relationship between ALL_TABLES and the my own table (ita.tpis32_job_status). Any help will be appreciated.
TABLE_NAME
JOB_58871_OUTDATA
JOB_58868_TS
JOB_58868_OUTDATA
JOB_58867_TS
JOB_58867_CMDLBL_2
JOB_58867_OUTDATA
JOB_58866_TS

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>> This is the first time I have ever posted in any forum so please tell me if I should be doing this better. <<
Please post DDL, so that people do not have to guess what the keys, constraints, Declarative Referential Integrity, data types, etc. in your schema are. Learn to follow ISO-11179 data element naming conventions and formatting rules. Temporal data should
use ISO-8601 formats. Code should be in Standard SQL as much as possible and not local dialect.
This is minimal polite behavior on SQL forums. What you did post is useless! Can you program from it? Neither can we. And we have to do all the extra typing for you.
CREATE TABLE Foo
(base_something CHAR(1) NOT NULL,
something_letter CHAR(1) NOT NULL,
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('A', 'B'),
('A', 'C'),
('B', 'A'),
('B', 'B');
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('A', '2'),
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('B', '2'),
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--CELKO-- Books in Celko Series for Morgan-Kaufmann Publishing: Analytics and OLAP in SQL / Data and Databases: Concepts in Practice Data / Measurements and Standards in SQL SQL for Smarties / SQL Programming Style / SQL Puzzles and Answers / Thinking
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I checked the instructions as i do not have access to this part. It seem this is a query. We had issues with queries in the past as not all codes from orders would appear in them. They never found the reason why that is happening.
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[\code]
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Who can give the step by step .
Thank you very much.

I set the wrong case .my question has been answered..
Thank you ~
Edited by: Richard 1982 on 2009-12-27 下午9:55

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