Multiple Left Outer Join

Hey all I'm on Oracle 10.2.0.0.3
I have the following SQL which works fine.
select *
FROM SYSADM.MASTER_ITEM_TBL A
left outer join
sysadm.ITEM_SPEX_PUR e
on
e.INV_ITEM_ID = a.INV_ITEM_IDIf I now wanted to add another Left outer Table join on sysadm.COMMENTS_TBL based on ITEM_SPEX_PUR.COMMENT_ID = COMMENTS_TBL.COMMENT_ID. I'm having a problem getting the correct syntax down.
Please help! Thanks!!

Hi,
Maybe this:
select *
FROM          SYSADM.MASTER_ITEM_TBL A
left outer join sysadm.ITEM_SPEX_PUR   e   on e.INV_ITEM_ID = a.INV_ITEM_ID
LEFT OUTER JOIN     sysadm.comments_tbl    c   ON c.comment_id = e.comment_id
;If you'd like more help, post a little sample data (CREATE TABLE and INSERT statements) and the results you want from that data.

Similar Messages

Oracle 8i -multiple LEFT OUTER JOIN

Hi,
I have to convert some stored procedure from Sql Server to Oracle 8i where I have multiple LEFT OUTER JOIN on a table. Because Oracle 8i accept only one outer join on a table how can I convert this:
select a.id, b.id
from test as a LEFT JOIN test1 b ON a.id(+)=b.id
and a.display(+)=b.display
and a.name(+)='Done';
Thanks.

FROM test a LEFT JOIN test1 b ON b.key = a.keyis equivalent to
FROM test a, test1 b WHERE b.key(+) = a.keyThere is a restriction (when using the "(+)" syntax) that a table may be outer-joined to at most one other table, but that does not prevent you from having multiple join conditions between those two tables.
From your example I'm not sure whether you need this:
SELECT a.id, b.id
FROM   test a
     , test1 b
WHERE a.name = 'Done'
AND    b.id (+)= a.id
AND    b.display (+)= a.display;or this:
SELECT a.id, b.id
FROM   test1 b
     , test a
WHERE a.id (+)= b.id
AND    a.display (+)= b.display;
WHERE a.name (+)= 'Done';

Multiple LEFT OUTER JOIN on Oracle 8i

Hi,
I have to convert some stored procedure from Sql Server to Oracle 8i where I have multiple LEFT OUTER JOIN on a table. Because Oracle 8i accept only one outer join on a table how can I convert this:
select a.id, b.id
from test as a LEFT JOIN test1 b ON a.id(+)=b.id
and c.display(+)=b.display
and c.name(+)='Done';
Thanks.

Rewrite as:
select a.id, b.id
from test, test1 b
WHERE a.id(+)=b.id
and a.display(+)=b.display
and a.name(+)='Done';
Though I would lose the (+) in a.name(+) = 'Done' unless you want every name.

Multiple left outer join in single select query

My client requires to apply multiple left outer join in single select query.
Tell me how it is possible . tell me if we can use native sql query.

HI vineet,
Using multile left join is possible but it reduce performance as it takes a long time to retrieve data.
The following code would help you in knowing how to use multiple left join
REPORT test.
PARAMETERS:
p_auart LIKE vbak-auart.
DATA:
BEGIN OF fs_sales,
    auart LIKE vbak-auart,
    vbeln LIKE vbak-vbeln,
    posnr LIKE vbap-posnr,
    matnr LIKE vbap-matnr,
    netwr LIKE vbap-netwr,
END OF fs_sales,
fs_temp LIKE fs_sales.
DATA:
t_sales LIKE STANDARD TABLE OF fs_sales.
SELECT k~auart
       k~vbeln
       p~posnr
       p~matnr
       p~netwr
INTO TABLE t_sales
FROM vbak AS k
OUTER JOIN vbap AS p
ON k~vbeln = p~vbeln
WHERE auart = p_auart
   AND p~netwr LT 1000.
IF sy-subrc EQ 0.
WRITE:/5 'Sales Document'(001),/,
        15 'Sales Document Item'(002),
        40 'Material Number'(003).
sort t_sales by netwr ascending.
LOOP AT t_sales INTO fs_sales.
    WRITE:/ fs_sales-vbeln under text-001.
    LOOP AT t_sales INTO fs_temp WHERE vbeln = fs_sales-vbeln.
      WRITE:/ fs_temp-posnr under text-002,
              fs_temp-matnr under text-003.
    ENDLOOP.
ENDLOOP.
ELSE.
MESSAGE 'No Record Found' TYPE 'I'.
ENDIF.
But i would suggest you to go with views instead of using multiple joins..
Best of luck,
Bhumika

Left outer join using multiple table

Hi,
I am trying to use left outer join with multiple tables , the join condition will be based on PERNR and BEGDA & ENDA for each infotype in selection screen.
select pa00~pernr pa00~begda pa00~endda pa00~massn pa00~massg pa00~stat2 pa00~aedtm pa00~uname
    pa01~begda pa01~endda pa01~bukrs pa01~persg pa01~persk pa01~mstbr pa01~ename pa01~aedtm pa01~uname
    pa02~begda pa02~endda pa02~nachn pa02~vorna pa02~midnm pa02~aedtm pa02~uname
    pa016~begda pa016~endda pa016~cttyp pa016~aedtm pa016~uname
    into CORRESPONDING FIELDS OF TABLE i_pall
    from ( PA0000 as pa00 left OUTER JOIN pa0001 as pa01 on pa00~pernr = pa01~pernr )
    left OUTER JOIN pa0002 as pa02 on pa00~pernr eq pa02~pernr )
    left OUTER JOIN pa0016 as pa016 on pa00~pernr eq pa016~pernr )
    where pa00~pernr in S_pernr
    AND pa00~begda in s_bg0000
    and pa00~endda in s_nd0000.
but this fails to fetch the value of begda enda from each pa0000,pa0001,pa0002,pa0016.
Please help!
Monirul

Why don't you use the standard logical database PNPCE and then Provide statement?

LEFT OUTER JOIN multiple tables - using the 9i syntax

I've always written my queries using the (+) operator for outer joins. I want to start using the new ANSI standard available in 9i. I can do it when I'm joining two tables in a simple query, but how does it work when I am joining multiple tables?
Here is an example of some SQL that works with the (+) outer join syntax. How can I convert this to use the LEFT OUTER JOIN syntax?
SELECT *
FROM audit_entry aue,
audit_table aut,
audit_statement aus,
audit_row aur,
audit_row_pkey aup1,
audit_row_pkey aup2
WHERE aue.audit_entry_id = aus.audit_entry_id
AND aut.table_name = 'TEST_AUDITING'
AND aut.table_owner = 'CLA_JOURNAL'
AND aus.audit_table_id = aut.audit_table_id
AND aur.audit_statement_id (+) = aus.audit_statement_id
AND aup1.audit_row_id (+) = aur.audit_row_id
AND aup1.pk_column_name (+) = 'TEST_AUDTING_PK_1'
AND aup2.audit_row_id (+) = aur.audit_row_id
AND aup2.pk_column_name (+) = 'TEST_AUDITING_PK_2'
I can join audit_statement to audit_entry easy enough, but then I want to join audit_table to audit_statement, how do I do that, do I start nesting the join statements?
Thanks
Richard

Thanks for getting back so quickly, I have tried the suggested SQL with mixed results:
SELECT COUNT(*)
FROM audit_entry aue
JOIN audit_statement aus ON aue.audit_entry_id = aus.audit_entry_id
JOIN audit_table aut ON aus.audit_table_id = aut.audit_table_id
RIGHT OUTER JOIN audit_row aur ON aur.audit_statement_id = aus.audit_statement_id
RIGHT OUTER JOIN audit_row_pkey aup1 ON aup1.audit_row_id = aur.audit_row_id
RIGHT OUTER JOIN audit_row_pkey aup2 ON aup2.audit_row_id = aur.audit_row_id
WHERE aut.table_name = 'TEST_AUDITING_TWO'
AND aut.table_owner = 'CLA_JOURNAL'
AND aup1.pk_column_name = 'TEST_AUDTING_PK_1'
AND aup2.pk_column_name = 'TEST_AUDITING_PK_2'
I had to change the order slightly, between the first two JOINs but otherwise it executed OK. My problem is, it should only return 175 rows but its returning 30625 rows. If I comment out the second reference to audit_row_pkey I get the expected result:
SELECT COUNT(*)
FROM audit_entry aue
JOIN audit_statement aus ON aue.audit_entry_id = aus.audit_entry_id
JOIN audit_table aut ON aus.audit_table_id = aut.audit_table_id
RIGHT OUTER JOIN audit_row aur ON aur.audit_statement_id = aus.audit_statement_id
RIGHT OUTER JOIN audit_row_pkey aup1 ON aup1.audit_row_id = aur.audit_row_id
--RIGHT OUTER JOIN audit_row_pkey aup2 ON aup2.audit_row_id = aur.audit_row_id
WHERE aut.table_name = 'TEST_AUDITING_TWO'
AND aut.table_owner = 'CLA_JOURNAL'
AND aup1.pk_column_name = 'TEST_AUDTING_PK_1'
--AND aup2.pk_column_name = 'TEST_AUDITING_PK_2'
It looks the same condition is being used in each case but why do I suddenly get so many rows - its joining differently somehow. It must be to do with the order, do I need to bracket the query?
Thanks again
Richard

Left Outer Joining multiple tables to one source table FAILS with VLD-1511

Hi all,
Is it me, or is OWB unable to handle left outer joining 1 source table to multiple other tables?
I want to load a fact table so I have 1 source table with measures. This table must be outer joined to some dimensions that have their FK in the fact table.
The SQL statement would look like this (and is perfectly valid):
select ...
from input, dim1, dim2
where input.c1 = dim1.c1(+)
and input.c2 = dim2.c2(+);
I put the where clause in the joiner operator and validate, but that gives me message VLD-1511: A table may be outer joined to at most one other table.
Even splitting this up into one outer join per joiner still gives this message.
A search and look around on the forum and on metalink shows there are related issues (like bug 3334035). Seemingly creating a view is the work-around to use.....? (ie downgrading owb to a simple gui tool) }-;
Have other people experienced this problem of not being able to outer join one input table to multiple other tables?
Thanks,
Ed

I have had some feedback from Oracle. It turns out this has to do with 2 issues. Below I have pasted the text that Support gave me:
<---------- START QUOTE ---------->
RESEARCH
=========
Bug 3437036 KEY LOOKUP DOES NOT DETECT ORA-1417 IN VALIDATE/GENERATE STEP
Unpublished Bug 4211684 FORWARD PORT OF BUG 3437036
shows:
Some more development has been completed when this bug is fixed in Paris.
The following are the details:
1. If the join condition contains a full outer join such as
tab1.c (+) = tab2.c (+) and tab2.c (+) = tab3.c
then the new validations implemented for this bug do not apply since
in OWB, full outer join triggers generation of joins in ANSI syntax.
ANSI syntax does not have the original problem the base bug of this
bug reported.
2. If the join condition does not contain any full outer join condition,
then the join is generated in Oracle join syntax, which is subject two
several restrictions. The fix to this bug check two of the restrictions.
3. The first restriction in Oracle syntax is that the outer join operator
"(+)" can only directly be attached to a column name. If you attach it
to an expression, such as the following:
(tab1.c + 1) (+) = tab2.c
Then there will be an ORA-936 error at the time of mapping deployment.
For this case, I have added a validation message VLD-1512 to error out
this situation.
4. The second restriction in Oracle syntax is that a table can only be
outer joined to exactly one other table.
For example, this is an invalid join in Oracle syntax:
tab1.c (+) = tab2.c and tab1.d (+) = tab3.d
because tab1 is left outer joined to tab2 and tab3.
But note that the following is still valid in Oracle syntax:
tab1.c (+) = tab2.c and tab1.d = tab3.d (+)
because tab1 is left outer joined to tab2 and right outer joined to tab3.
So this latter case does not violate the restriction that "same oj" to
more than 1 table is not allowed.
If same oj to more than 1 table is specified in a join condition,
VLD-1511 will be issued, and the map is made invalid.
<---------- END QUOTE ---------->
OWB does a partial validation, ie not all access paths are (can be) checked. A full check is only done by the database itself. So some scenarios (like checking whether multiple tables are outer joined the correct way) are not checked, and in this case are flagged with an error (even though it is actually a correct scenario).
Seemingly this was not flagged with an error in earlier versions of OWB, so beware, OWB behaviour may change when upgrading...
Alternative solutions are (1) using key lookups, (2) using a view with all outer joins in there, (3) using intermediate result tables between the joins.
Hope this info helps some people prevent spending too much time on a false error message,
Ed

Multiple tables using left outer join?

Hi, guys:
I have 4 tables: A, B, C; if I want to do the following:
A left outer join B, its result left outer join C.
How can I do that? BTW, I am using DB2.
The following is a sample inner join:
select a.id, b.first, c.last
from A as a, B as b, C as c
thanks

select ..
from A a
left outer join B b ON ....
left outer join C c ON ...
WHERE ...
rgds

Left outer join with multiple conditions

Is it possible to add to a left outer join (= anyOfAllowingNone) more than the primary condition (in SQL this would be added per "and").
Background: The execution plan of the produced SQL shows large results on which the final filter is applied although I have conditions that would decrease this last result set much earlier...

There is no easy way to do this in TopLink expressions, other than including the join in the regular where clause as you have done. Does it make a big impact in the performance of your query?

You could use custom SQL for the query.

Or you could potentially define a OneToOneQueryKey in your TopLink descriptor that includes the additional join criteria and call anyOfAllowingNone using this query key.

---
James Sutherland

Restriction to Left Outer Joins in PS Query

Hello I am trying to do Left Outer JOin in PS QUERY. I need to do dept tbl, job code tbl and locatable as left outer joins with JOB Table. Looks like in PS QUERY there is a error message saying as below. Can someone has any workaround to achieve this in PS QUERY. I know I can create a View and use that in PS QUERY but BUsiness Users are dependent on IT, so that doesn't work. Also, adding JOB table multiple times works but I am looking for better solution if anyone had come accorss working through PS QUERY Outer JOins.
Windows Internet Explorer
Left outer joins must be joined to the last record in the query. (139,290)
OK
Thanks,
SC.

Hi Mike,
According to your description, you want to improve the performance for your DAX query in SQL Server Analysis Service Tabular model, right? Here is a white paper describes strategies and specific techniques for getting the best performance from your tabular
models, including processing and partitioning strategies, DAX query tuning, and server tuning for specific workloads.
http://msdn.microsoft.com/en-us/library/dn393915.aspx
Since this is a complex DAX query, from a support perspective this is really beyond what we can do here in the forums. If you cannot determine your answer here or on your own, consider opening a support case with Microsoft. Visit this link to see the various
support options that are available to better meet your needs:
http://support.microsoft.com/default.aspx?id=fh;en-us;offerprophone
Regards,
Charlie Liao
TechNet Community Support

Need to specify LEFT OUTER JOIN while using data from logical database BRM?

I'm trying to extract data for external processing using SQVI. The fields required are in tables BKPF (Document Header) and BSEG (document detail) so I'm using logical database BRM. Note: required fields include the SPGR* (blocking reasons) which don't appear to be in BSIS/BSAS/BSID/BSAD/BSIK/BSAK, hence I can't just use a Table Join on any of these but have to use BSEG, hence BRM.
If the document type is an invoice, I also need to include the PO number from table EKKO (PO header), if present, hence I'd like to add this to the list. However, if I do this, it seems that some records are no longer display, e.g. AB documents.
The interesting thing is that not all records are suppressed, so it's not a simple case of the logical database using an effective INNER JOIN, but the effect is similar.
In any event, is there a way to specify that the link to table EKKO should be treated as an effective LEFT OUTER JOIN, i.e. records from BKPF/BSEG should be included irrespective of whether any records from EKKO/EKPO exist or not?
Alternatively, is there some other way to get the SPGR* fields (for example) from BSEG and still join the BKPF? Of course, one solution is to use multiple queries, but I was hoping to avoid this.

Thanks for everyone's responses, I know how to work around the problem with sql, I am wanting to see if there is a way to make the outer joins filter go in the join clause instead of the where clause with Crystal Reports standard functionality.
We have some Crystal Reports users that are not sql users, i.e. benefit specialists, payroll specialists and compensation analysts who have Crystal Reports. I was hoping this functionality was available for them. I just made my example a simple one, but often reports have multiple outer joins with maybe 2 or three of the outer joins needing a filter on them that won't make them into an inner join.
Such as
Select person information
outer join address record
outer join email record
outer join tax record (filter for active state record & filter for code = STATE )
outer join pay rates record
outer join phone#s (filter for home phone#)
I thought maybe the functionality may be available, that I just don't know how or where to use it. Maybe it is just not available.
If it is not available, I will probably need to setup some standard views for them to query, rather than expecting them to pull the tables together themselves.

Left outer join (business model and mapping layer)

hi, experts!
!http://img693.imageshack.us/img693/9642/joinp.png!
if there are a dimension table and a fact table, I wanna have a left join from dimension to fact (select * from dimension a left outer join fact b on a.key = b.key;)
is the selection for cardinality correct?
And I only change TYPE to "Left Outer" ?
however, I tested on this setting.
if I only select the dimension , 15xx records returned.
if I select the dimension and fact, 14xx records returned.
any wrong setting ?

Just to make I'm getting your situation correct, are the following true:
--you've got a total of 15 records in your dimension table
--you want to see every dimension record, regardless if there is any fact records that have that dimension
--if a fact record exists, it must have one of the 15 values in your dimension table.
--a single dimension record can match to multiple fact records
If those statements are true, then you want your dimension cardinality set to 1 and your fact cardinality set to N.
Then you'll want to do the left outer join like you mentioned and you should be set.
-Joe

Sql help (left outer join)

Hi All,
I am referring 2 regular tables from the HR schema which you get when you install Oracle 9i , Now the issue is that I want all the rows from my employees table even if the row doesnt have the salary equal to 2500.
Here is my Sql:
select e.employee_id
     , e.first_name
     , e.last_name
     , e.salary
     , e.department_id e_dep_id
     , d.department_id d_dep_id
     , d.department_name
     , d.location_id
from employees e
, departments d
where 1 = 1
     And e.department_id = d.department_id(+) And e.SALARY = 2500
I am achieving my result set from the below query though(its just a syntactical problem) , please help :
select e.employee_id
     , e.first_name
     , e.last_name
     , e.salary
     , e.department_id e_dep_id
     , d.department_id d_dep_id
     , d.department_name
     , d.location_id
from employees e left outer join
departments d
on e.department_id = d.department_id And e.SALARY = 2500
Regards
Rahul

Mac_Freak_Rahul wrote:
Well my requirement is to pull all the records from my driving table(ie employees) doesnt matter weather the condition satisfies or not. Just to add to that lets say I would need to bring another table and my join criteria involves data from the employees table and the third table(in this case I need to make sure that all the rows from my driving table remains and doesnt get filter out). Please help my only problem is of the new syntax of outer joins.
Regards
RahulRahul,
Why do you want to use "oracle only syntax ( + )"? I highly recommend you to use ANSI syntax, it's much more readable:
This is from Oracle's documents:
Oracle recommends that you use the FROM clause OUTER JOIN syntax rather than the Oracle join operator. Outer join queries that use the Oracle join operator (+) are subject to the following > rules and restrictions, which do not apply to the FROM clause OUTER JOIN syntax:
You cannot specify the (+) operator in a query block that also contains FROM clause join syntax.
The (+) operator can appear only in the WHERE clause or, in the context of left-correlation (that is, when specifying the TABLE clause) in the FROM clause, and can be applied only to a column > of a table or view.
If A and B are joined by multiple join conditions, then you must use the (+) operator in all of these conditions. If you do not, then Oracle Database will return only the rows resulting from a > simple join, but without a warning or error to advise you that you do not have the results of an outer join.
The (+) operator does not produce an outer join if you specify one table in the outer query and the other table in an inner query.
You cannot use the (+) operator to outer-join a table to itself, although self joins are valid. For example, the following statement is not valid:
-- The following statement is not valid:
SELECT employee_id, manager_id
FROM employees
WHERE employees.manager_id(+) = employees.employee_id;
However, the following self join is valid:
SELECT e1.employee_id, e1.manager_id, e2.employee_id
FROM employees e1, employees e2
WHERE e1.manager_id(+) = e2.employee_id;
The (+) operator can be applied only to a column, not to an arbitrary expression. However, an arbitrary expression can contain one or more columns marked with the (+) operator.
A WHERE condition containing the (+) operator cannot be combined with another condition using the OR logical operator.
A WHERE condition cannot use the IN comparison condition to compare a column marked with the (+) operator with an expression.
A WHERE condition cannot compare any column marked with the (+) operator with a subquery.Best Regards,
Gokhan
If this question is answered, please mark appropriate posts as correct/helpful and the thread as closed. Thanks

BI 7.0 Infoset - Infocube - Left outer join - query

Hi Expert,
A infoset contain Infocube and ODS, linked with left outer join, common fields are PO,PO item. PO account assignment ODS have three keyfields: PO Doc.,Item,account Assignment .
 PO Infocube PO Account Assignment ODS
PO PO item AmtPO Doc. Item AccAssignment Cost object
1000 10 230 1000 10 1 CC1
1001 10 250 1002 10 1 CC1
1002 10 150 1002 10 2 CC2
in BEx result are like this:
1000 10 230 1 CC1
1001 10 250 # #
1002 10 150 1 CC1
1002 10 150 2 CC2 ( amount only duplicated)
The issue was that amount gets duplicated. It only occurs if PO has more than one account assignment.
In report, we want show like this
1000 10 230 1 CC1
1001 10 250 # #
1002 10 150 1 CC1
1002 10 # 2 CC2
Any suggestion or input to overcome this issue?
Thanks,
Saran
Message was edited by:
 Saravanan K

Hi,
did you solve your problem? because I have the same issue right now: the left outer join doesn't seem to do its job.
Let me know if you have found a solution, it would be appreciated.
have a nice day,
Dominic

BI Infoset left outer join (NW04s)

I created an Infoset using a left outer join for infoproviders:
- 0FIGL_O10 (GL transaction figures - DSO )
- 0CCA_C03 (CCA Statistical key figures - CUBE)
DSO 0FIGL_O10 is the left table with joins on:
- 0COSTCENTER
- 0FISCPER
The data set returned by Infoset appears to be based on a SQL using an
inner join.
This appears to be a bug.
We are on BI 700 SP 15.

Hi Raynald - I did a demo with few records and it works fine for me. We are on 7, SP14.

Multiple Left Outer Join

Similar Messages

Maybe you are looking for