Joins in Oracle 8i

Hi
Oracle 8i supports keywords for join syntax?
INNER JOIN
ON

You can see that yourself by searching the documentation: http://www.oracle.com/pls/tahiti/tahiti.homepage
The answer is: no.
Regards,
Rob.

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Inner Join in oracle 10g

Is it possible to use inner join in oracle 10g?

SQL> select ename, dname
2 from emp inner join dept
3 on emp.deptno=dept.deptno;
ENAME      DNAME
SMITH      RESEARCH
ALLEN      SALES
WARD       SALES
JONES      RESEARCH
MARTIN     SALES
BLAKE      SALES
CLARK      ACCOUNTING
SCOTT      RESEARCH
KING       ACCOUNTING
TURNER     SALES
ADAMS      RESEARCH
ENAME      DNAME
JAMES      SALES
FORD       RESEARCH
MILLER     ACCOUNTING
14 rows selected.
SQL>

How to provide joins between oracle tables and sql server tables

Hi,
I have a requirement that i need to generate a report form two different data base. i.e Oracle and Sql Server.
how to provide joins between oracle tables and sql server tables ? Any help on this
Regards,
Malli

user10675696 wrote:
I have a requirement that i need to generate a report form two different data base. i.e Oracle and Sql Server. Bad idea most times. Heterogeneous joins do not exactly scale and performance can be severely degraded by network speed and b/w availability. And there is nothing you can do in the application and database layers to address performance issue at the network level in this case - your code's performance is simply at the mercy of network performance. With a single glaring fact - network performance is continually degrading. All the time. Always. Until it is upgraded. When the performance degradation starts all over again.
If the tables are not small (few 1000 rows each) and row volumes static, I would not consider doing a heterogeneous join. Instead I would rather go for a materialised view on the Oracle side, use a proper table and index structure, and do a local database join.

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How do u write a LEFT JOIN in Oracle Developer Forms 6i?

I have 2 tables:PERSDET and EMP_MEDICAL_LTA
PERSDET has EMP_ID,EMP_NAME n some other fields.
EMP_MEDICAL_LTA has EMP_ID,FIELD1,FIELD2 n some other fields
EMP_ID is the common field between these 2 tables.
My requirement is to display all the EMP_NAME,that is-EMP_NAME which have field1 and field2 entries, as well as EMP_NAME which donot have field1 and field2 entries. I thought of using a LEFT join for this operation. The query I used is as follows:
SELECT PERSDET.emp_id,PERSDET.emp_name,EMP_MEDICAL_LTA.field1,EMP_MEDICAL_LTA.field2 into emp_id,emp_name,m,l FROM
PERSDET LEFT JOIN EMP_MEDICAL_LTA ON PERSDET.emp_id=EMP_MEDICAL_LTA.EMP_ID
where <some other joining conditions>;
This query worked perfectly fine when I tried it running on the SQL prompt, but when I wrote it in a cursor in Oracle Forms 6i, it gave an error on the LEFT keyword!
Is there any substitute for LEFT JOIN in Oracle Forms 6i???
Please help!
Thanks!

hi,
yes it is very much possible. and you query willbe as follows;
SELECT PERSDET.emp_id,PERSDET.emp_name,EMP_MEDICAL_LTA.field1,EMP_MEDICAL_LTA.field2 into emp_id,emp_name,m,l FROM
PERSDET where PERSDET.emp_id=EMP_MEDICAL_LTA.EMP_ID(+)
where <some other joining conditions>;
yse, you just have to use (+) symble on the side where the join condition is not fullfilled. the 2 possibilites for your qury is PERSDET.emp_id=EMP_MEDICAL_LTA.EMP_ID(+)
PERSDET.emp_id(+)=EMP_MEDICAL_LTA.EMP_ID
you can execute both and suit your self.
MohibMaan.

How to use OUTER JOIN in Oracle Answers Filters?

Hi, I need to have a filter on an 'Oracle Answers' report.
The query from the NQQuery.log appears as below. (I have simplified the SELECT clause here for easy reading)
SELECT t692.enquiry_business_route AS c1,
t692.enquiry_id AS c11, t913.YEAR AS c12,
t913.full_date AS c13, t666.surname AS c14,
t666.post_code AS c15, t855.company_name AS c16,
t983.notes AS c30
FROM
mkt_dw_enev_enhi_dim t983,
mkt_dw_key_partner_dim t855,
mkt_dw_event_type_dim t821,
mkt_dw_customer_dim t666,
mkt_dw_time_dim t913,
mkt_dw_enquiry_event_fact t692
WHERE (
t692.enquiry_id = t983.enqu_id
AND t666.customer_dim_key = t692.customer_dim_key
AND t692.event_date_time_key = t913.time_dim_key
AND TRUNC(t983.event_date)= t913.FULL_DATE
AND t692.event_type = t821.event_type_dim_key
AND t692.key_partner_dim_key = t855.key_partner_dim_key
AND t821.event_type_category = 'RECEIVE_FEE'
AND t913.YEAR = 2009
and t692.enquiry_id = 535986
For the following two lines I would like to have the OUTER JOIN.
AND t692.event_type = t821.event_type_dim_key(+)
AND t821.event_type_category(+) = 'RECEIVE_FEE' (THIS IS THE FILTER CONDITION, AT THE MOMENT IT DOESN'T WORK WITH OUTER JOIN SYMBOL)
Please could you let me know the best way of achieving the above.
Thanks
Srikanth

In the BMM layer in the join condition you will be able to specify the join to be (left, right or full outer join).
You can even add the required table in the LTS(logical table source) and also specify a left, right or full outer join there as well.
There is an interesting work around as mentioned in the below blog to get to the Outer join results with out changing anything in rpd but in Answers.
http://obiee101.blogspot.com/2008/11/obiee-outerjoin-workaround.html
Hope it helps
Thanks
prash

Multiple Outer join in ORACLE 8.1.6

Hi ,
Can anybody suggest me how can i use multiple outer join on one table. I'm using ORACLE 8.1.6.
I know this version of oracle doesnt support this. But is there anmy other wa\y I can achieve this.
Thanks amd Regards
Deependra

Tricky question - but I went through this about 3 months ago, and found a good thread on here that explains it pretty well.
check out Re: Outer join a table with two diff table
You basically will have to create an inline view with one outer join in there, and then a second outer join on the outside. Read through the posts in that thread and it should help!

How To do a LEFT JOIN in Oracle 8i

Hello
To explain my problem in a simple way: I have two tables, PROVA1 and PROVA2. Both have a primary key with two fields (CHIAVE1 amd CHIAVE2, numbers).
I have to search for all records in A but not in B. In Oracle 8 LEFT JOIN is not available and I do not Know how doing it.
I have read something about + operator, but I am not sure. What about:
Select * from PROVA1 P1, PROVA2 P2 where
(P1.CHIAVE1(+) = P2.CHIAVE1) and
(P1.CHIAVE2(+) = P2.CHIAVE2) and
(P2.CHIAVE1 IS NULL) and
(P2.CHIAVE2 IS NULL)
Thank you
Garetano Recchi

Gaetano, you're really close.
The (+) sign goes near to the table where the records can be missed. In your example near P2 columns.
Select *
from PROVA1 P1, PROVA2 P2
where P1.CHIAVE1 = P2.CHIAVE1(+)
and P1.CHIAVE2 = P2.CHIAVE2(+)
and P2.CHIAVE1 IS NULL
and P2.CHIAVE2 IS NULLYou can anyway use the minus operator
Select *
from PROVA1
where (chiave1,chiave2) in (select chiave1, chiave2 from prova1 minus select chiave1, chiave2 from prova2);If you want to download a free book (in italiano) for oracle beginners go to
My Oracle-related blog
Max

Outer Joins in Oracle 9i

Post Author: wtfinc
CA Forum: Data Connectivity and SQL
After upgrading to Oracle 9i, the SQL queries generated by Crystal Reports XI contain a syntax errors when performing Outer Joins. The particular error returned by Oracle is "Old Style Outer Join can not be used with ANSI Joins". Does anyone know a work around short of changing the datbase connection to a command and rewriting the report?

Post Author: Jagan
CA Forum: Data Connectivity and SQL
If you choose SQL Query from Crystal's Database menu, does the SQL have a combination of old and new syntax?

Outer join with Oracle Syntax

Hi, i'm new in oracle and ihave been working this query for reports for about 2 weeks, plz take a look on my query
SELECT mmt.transaction_date "Transaction Date",
            msib.segment1 "Item",
            gcc.segment1||'-'||gcc.segment2||'-'||gcc.segment3||'-'||gcc.segment4||'-'||gcc.segment5||'-'||gcc.segment6||'-'||(nvl(gcc.segment7,'000000')) "account",
            (CASE mttype.transaction_type_name
            WHEN 'Average cost update' THEN
          ((nvl(mmt.new_cost,0) - nvl(mmt.prior_cost,0)) * nvl(mmt.quantity_adjusted,0)) + nvl(mmt.variance_amount,0)
            ELSE
             (mmt.Primary_quantity * nvl(mmt.actual_cost, 0) + nvl(mmt.variance_amount, 0))
           END) "Transaction Value",
            mttype.description "Transaction Type",
            mmt.subinventory_code "Subinventory",
            ood.organization_code "Org",
            msib.Primary_UOM_Code "UOM",
            mmt.Primary_Quantity "Primary Quantity",
            mtr.description "Reason",
            mmt.transaction_reference "Reference"
FROM mtl_material_transactions mmt,
         mtl_system_items_b msib,
         mtl_transaction_accounts mta,
         gl_code_combinations gcc,
         mtl_transaction_types mttype,
         Org_Organization_Definitions ood,
         mtl_transaction_reasons mtr
WHERE mmt.transaction_date >= :P_DATE_FROM
           and mmt.transaction_date < :P_DATE_TO +1
           and mmt.organization_id = :P_ORGANIZATION
           and msib.organization_ID = mmt.organization_ID
           and msib.inventory_item_id=mmt.inventory_item_id
           and mta.transaction_id=mmt.transaction_id
           and gcc.code_combination_id = mta.reference_account
           and mttype.transaction_type_id=mmt.transaction_type_id
           and mmt.reason_id=mtr.reason_id(+)
           and ood.organization_id=mmt.organization_id
           and mttype.transaction_type_id = :P_TRANSACTION_TYPE
           and msib.segment1 = :P_ITEM
           AND gcc.segment2 = :P_ACCOUNTthe null values is on the mtl_material_transactions table, which is reason_id, subinventory_code, and transaction_reference
the desired out put would be to show all the record on mtl_material_transactions with the null values
so, did i put the right symbol for the outer join ??
btw
i have tried put the (+) on various places but it still no good, and i'm really at a loss

user11174063 wrote:
Hi, i'm new in oracle and ihave been working this query for reports for about 2 weeks, plz take a look on my query
SELECT mmt.transaction_date "Transaction Date",
msib.segment1 "Item",
gcc.segment1||'-'||gcc.segment2||'-'||gcc.segment3||'-'||gcc.segment4||'-'||gcc.segment5||'-'||gcc.segment6||'-'||(nvl(gcc.segment7,'000000')) "account",
(CASE mttype.transaction_type_name
WHEN 'Average cost update' THEN
((nvl(mmt.new_cost,0) - nvl(mmt.prior_cost,0)) * nvl(mmt.quantity_adjusted,0)) + nvl(mmt.variance_amount,0)
ELSE
(mmt.Primary_quantity * nvl(mmt.actual_cost, 0) + nvl(mmt.variance_amount, 0))
END) "Transaction Value",
mttype.description "Transaction Type",
mmt.subinventory_code "Subinventory",
ood.organization_code "Org",
msib.Primary_UOM_Code "UOM",
mmt.Primary_Quantity "Primary Quantity",
mtr.description "Reason",
mmt.transaction_reference "Reference"
FROM mtl_material_transactions mmt,
mtl_system_items_b msib,
mtl_transaction_accounts mta,
gl_code_combinations gcc,
mtl_transaction_types mttype,
Org_Organization_Definitions ood,
mtl_transaction_reasons mtr
WHERE mmt.transaction_date >= :P_DATE_FROM
and mmt.transaction_date < :P_DATE_TO +1
and mmt.organization_id = :P_ORGANIZATION
and msib.organization_ID = mmt.organization_ID
and msib.inventory_item_id=mmt.inventory_item_id
and mta.transaction_id=mmt.transaction_id
and gcc.code_combination_id = mta.reference_account
and mttype.transaction_type_id=mmt.transaction_type_id
and mmt.reason_id=mtr.reason_id(+)
and ood.organization_id=mmt.organization_id
and mttype.transaction_type_id = :P_TRANSACTION_TYPE
and msib.segment1 = :P_ITEM
AND gcc.segment2 = :P_ACCOUNTthe null values is on the mtl_material_transactions table, which is reason_id, subinventory_code, and transaction_reference
the desired out put would be to show all the record on mtl_material_transactions with the null values
so, did i put the right symbol for the outer join ??
btw
i have tried put the (+) on various places but it still no good, and i'm really at a losshttp://www.lmgtfy.com/?q=oracle+outer+join+example

Outer join syntax - oracle 8i

Here is an Oracle 8i issue I've run into ....
I am trying to create a table that contains a record for each hour of the day (even if count is 0). I have a problem when I try a right outer join using the following syntax:
SELECT MDT.date_field, COUNT(*)
FROM MASTER_DATE_TABLE MDT, hsa_tgt.PICIS_OR POR
WHERE MDT.date_field = TO_CHAR(POR.OR_IN_DTTM,'YYYYMMDDHH24') (+)
AND TO_DATE(MDT.date_field,'YYYYMMDDHH24') >= '01-Jan-2006'
AND TO_DATE(MDT.date_field,'YYYYMMDDHH24') <= '31-Jan-2006'
GROUP BY MDT.date_field;
The problem 'SQL code no properly ended' only occurs if I use the TO_CHAR function (or any function for that matter) on the outer join line.
Is there a workaround? I did manage to create a temporary table and then successfully do an outer join in order to bypass having the to_char function in the join statement.
Maybe a union?
TIA

I had to put it in a subquery? (if that's what it's called)
SELECT a1.date_field DateAndHour, b1.OR_date, NVL(b1.record_count,0)
FROM MASTER_DATE_TABLE a1,
              (SELECT TO_CHAR(b.OR_IN_DTTM,'YYYYMMDDHH24') OR_date, COUNT(*) record_count
            FROM hsa_tgt.PICIS_OR b
            GROUP BY TO_CHAR(b.OR_IN_DTTM,'YYYYMMDDHH24')) b1
WHERE a1.date_field = b1.OR_date (+)
GROUP BY a1.date_field, b1.OR_date, b1.record_count
HAVING (TO_DATE(a1.date_field,'YYYYMMDDHH24') BETWEEN '01-Jan-2006' AND '31-Jan-2006')
ORDER BY a1.date_field;

Help with outer joins in Oracle!!

so far this is what i've come up with and the code below does not work. Can anyone please help me on how the sytanx of left joins and how to use multiple left joins in a single query in oracle?
SELECT a.*, b.Position_CD, c.Skill_CD, d.Team_Name, d.Team_Country, d.Club, e.Structure_Name
FROM Roster a, Roster_position b, roster_skill c, Team d, Team_Structure e
where (a.Roster_ID = ((b.Roster_ID= c.Roster_Id(+)) b.roster_id(+)).......
I dont' know how to add more left joins!
Here is the query I'm trying to duplicate (which is a query from Ms Access databaase which works fine).
SELECT a.*, b.Position_CD, c.Skill_CD, d.Team_Name, d.Team_Country, d.Club, e.Structure_Name
from ((Roster a LEFT JOIN (Roster_Position b LEFT JOIN Roster_Skill c ON b.Roster_ID=c.Roster_ID) ON a.Roster_ID=b.Roster_ID) LEFT JOIN Team d ON a.Team_CD=d.Team_CD) LEFT JOIN Team_Structure e ON a.Team_Structure_CD=e.Team_Structure_CD
ORDER BY a.Roster_Id;
Any help or comments are greatly appreciated

First,
I am not one of the leading SQL brains here...but I'm taking a stab, nonetheless.
Second,
Here's my best guess - and it seems to me that it should work as there are not two outer joins between any two tables. I hope I decoded your joins correctly - quite a mess that Access syntax!
SELECT a.*, b.position_cd, c.skill_cd, d.team_name, d.team_country, d.club, e.structure_name
FROM ROSTER a, ROSTER_POSITION b, ROSTER_SKILL c, TEAM d, TEAM_STRUCTURE e
WHERE a.roster_id = b.roster_id(+)
AND b.roster_id = c.roster_id(+)
AND a.team_cd = d.team_cd(+)
AND a.team_structure = e.team_structure(+);Third,
As an architect-dude, it seems to me that you have a serious
modeling problem to need so many outer joins in such a basic
grab of data. In any scale other than minute, the performance
of this model will suffer dramatically. Specifically, why can't
ROSTER have an equijoin with TEAM and with TEAM_STRUCTURE - as they
appear to be lookup tables...
Good Luck
(I'm certain you'll get better SQL from the others),
Michael O'Neill
Publisher of the PigiWiki
clever-idea.com

Join between Oracle and non-Oracle Database

We are working at a project with the follow architecture:
- 5 Databases (3 Oracle, 1 Sybase and 1 DB2);
- Session Bean like Session Facade Pattern;
- Entity Bean (BMP);
- OC4J (Oracle Container for J2EE);
The case is that we cannot make join between tables of different bases, for example, join with one table of Oracle and one other of DB2, therefore the customer does not possess tool midleware for this.
The idea that appeared was: we make a query in table XXX of Oracle and return a HashTable with its respective VO�s and Keys (PKs from the first query that will serve of base for the second query), later we have access the DB2 that one second collection would return, to inside make join of the application.
The problem is that with this solution, we will have fall in the performance. And we do not know if it is the best form.
Do you have any idea???
Thanks,
Eric Sander

Hi,
If you have different databases then the join has to be done in the VM (either by the appserver or by you).
If you want to do it yourself, I would try the following:
-write one DAO per business object (at least one per database)
-this DAO contains the specifics of its database
-return a hashtable of keys and VOs from one DAO (as you say you do?)
-in the other DAO, add a method "joinWith ( Hashtable foreignKeys )" that will return the join's result
-implement the method along these lines:
1. retrieve the candidate rows from the second DAO's tables (1 query execution)
2. put the keys in a new Hashtable, say "candidateKeys" (meaning 1 iteration over all results)
3. iterate over all elements of foreignKeys (1 iteration)
4. for each element, check if a key exists in "candidateKeys" (1 hash lookup, very fast)
5. add any such row to the result
This is called a hash join (Oracle does it internally if you do a join).
It is the fastest algorithm to do joins.
Best,
Guy
http://www.atomikos.com - JTA transaction manager

Can I join the oracle and mssql database together?

Hi,
Did someone know how to join the table from two different platform database? I need to join oracle table with Mssql table in the select statement. Is possible to do so or any hints out there?
Thanks
Daron

Hi,
Definitly yes, Oracle and MSSQL are two different products and there are unsupported datatypes exists in MSSQL server. Except few instances, you can go ahead and join in one single query provided if you have database link.
Cheers!!!!
Mahesh Ragineni

Perform an Inner Join in Oracle 8

We have to make our application (that runs with Oracle 9i) backward compatible with Oracle 8.
There are certain SQL statements that were introduced in Oracle 9i, such as Inner Join (Oracle 9i now allows more of the ANSI standard SQL that MS SQL also uses)
Does anyone know of the other differences I should look out for, or any documentation that lists the new 9i differences that we may already be using.
I have trawled through lots of OTN documentation, but not been able to find anything that highlights even the Inner Join problem.
If there are any documents that also suggest a solution, that would be even better.
Thanks in advance for any help/suggestion
Mark

You have a parameter called "COMPATIBLE", and if you set to, for example 8.1.7 in your 9i database, then your application should be compatible with 8.1.7. It is that easy!
Of course, by doing so, you renounce to use the 9i features.
There is a book called "New Features" in the book list in your oracle documentation.
Regards
Laurent Schneider

Joins in Oracle 8i

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