Joins between two tables generating Cartesian product

Hi All,
I am facing an issue in my report in which, I am getting mismatch as the two subsets which I'm joining is resulting in a cartesian product of individual subset's results. I am doing left join to join those two subsets. Please help in resolving
this issue.
Thank you,
Anu.

Hi,
Can you please post your script to see what is causing the cartesian product?
This way it is difficult to help you.
Regards,
Reshma
Please Vote as Helpful if an answer is helpful and/or Please mark Proposed as Answer or Mark As Answer when question is answered

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Subject: How to do join between two tables using something like SE16

SE16, SE11 provide form based interface query information from a single table. Is there a way to do join between two tables without creating an infoset erc? I am looking for something similar to sql join but in SAP BI 7.0
Thanks.

Hi
Pls look into below links. Hope this helps you.
1. http://help.sap.com/saphelp_46c/helpdata/EN/d2/cb45bf455611d189710000e8322d00/content.htm
2. http://help.sap.com/saphelp_46c/helpdata/EN/d2/cb45a5455611d189710000e8322d00/content.htm
Regards
Sirigiri

Join between two tables in SAP ( actual sales vs budget sales)

I have one table with actual data sales in SAP .This table has a name   CE11000
This table contain amounts about : customers ,Products, Quantity of Sales ,amount of sales ,month witch did the sales and the year.
The other table from SAP has the budget sales . This table is CE21000
This table contain the same fields : customers ,Products, Quantity of Sales ,amount of sales ,month witch did the sales and the year but all this for budget .
In the budget table ( CE21000)there are no records for a particular make if it was not budgeted to make a sale.
Sometimes i have the same problem with the actual data table (CE11000) ...I have not records witch can use to join the results for a report witch take the comparison between actual sales and budget sales.
I would like to remind you that the report should have four "dimensions"
a) year
b) month
c) customer
d) type of product
I try to use left outer join with a customer fields in two tables but i have simultaneously the field with type of product .
I want to see in one year (for example february of 2011) for one customer the type of products (quantity and anmounts) witch buy (ACTUAL) and that to compare with the corresponding data if available
Any help would appreciate
thanks

Haggar
Your first query matches on two conditions BOTH being true. If there is a D and no matching E, you'll see the columns from D but none from E.
Your second query takes all Emplyees, and lines up 2 (possibly different) rows from D against each
E columns | D columns (match e.deptid=d.dept_id) | D columns (match ep_id=de_id)
So you may have any mix of:
E       | D1      | D2
E       | nothing | D2
nothing | D1      | D2
E       | D1      | nothing
E       | nothing | nothing
nothing | D1      | nothing
nothing | nothing | D2(NB I'm assuming FULL OUTER JOIN is commutative - ie the order is unimportant - but I may be wrong in which case the last row won't occur)
You will get a different number of rows (as well as different columns) in each case.
Try it!
Regards Nigel

Doubt on creating join between two tables

Hi friends,
I have two tables , ekes and eine
my requirement is if Ekes-ebtyp = 'X1'.
then Ekes-ebtyp = EKES-EINDT + Eine-j_3alitra.
the doubt is there is no primary key common between this table . actually in my whole program for purchase order i used EBELN for extracting details when two tables are involved . in this two tables no two primary keys are common to extract data ...is there any ways please suggest..
the code i wrote is
loop at li_ekes assigning <fl_ekes>.
read table li_eine assigning <fl_eine> with table key (here i need to give some unique fields to join these two fields please guide me which field i can use.).
<fl_ekes>-ebtyp = <fl_ekes>-EINDT + <fl_eine>-j_3alitra.

Hi,
Both tables have field EBELN in common.
You can use it to extract data from both.
Hope this helps.
reward if helpful.
Regards,
Sipra

Multiple foreign key joins between two tables

Hi,
I have a question about building a repository.
I have a date dimension and one fact. The fact table has about 10 foreign key columns that link to the date Dimension.
In this case should I create 10 aliases to create joins in the Physical and BMM layer or is there any other way to handle this situation.
I am asking this question because 10 aliases can get very confusing for me at the later point of time while creating reports.
Using OBIEE 10.1.3

Hi
I have a follow up question on this.
I am okay with not seeing the different date tables under the Subject area. Even if it just shows a it as a Simple DATE Dimension I am good with it.
In this case which is the efficient way, creating 10 aliases or creating 10 joins in the physical layer. I just figured out that we can create multiple joins between the same set of two tables but do not know how will that effect the way BI server works.
Please help me in understanding this concept.
thanks
This request id for OBIEE 10.1.3

SQL Join between two tables two columns, but the data in the join condition could be null.

hello all,
can anyone help me write an outer join b/n the two tables below. The joining condition has if's and or's.
table 1 has 2 million rows, table 2 is very small
TABLE1
CUSTOMER_ID
CITY
STATE
1
SKOKIE
IL
2
CHICAGO
IL
3
CARY
NC
ERIE
PA
PHILLY
PA
CHARLOTE
NC
2 MILLION
CITYXY
STATEX
TABLE2
CITY
STATE
CONTACT
IL
OJO
ERIE
BRITT
PA
MIKE
PITTSBURG
PA
HILTON
N043
TAT
affi
B
affi
R
b0b
Q
b0b
CHARLOTE
NC
b0b
problem :: for all the data in table1, I need to find out the CONTACT from table 2 And the join condition would be as below
1. either both TABLE1.CITY=TABLE2.CITY AND TABLE1.STATE=TABLE2.STATE and get CONTACT
OR
2. TABLE1.CITY=TABLE2.CITY AND TABLE2.STATE IS NULL and get the value of CONTACT
OR
3. TABLE1.STATE=TABLE2.STATE AND TABLE2.CITY is null and get the value of CONTACT
I need a query like this
SELECT A.CUSTOMER_ID, A.CITY, A.STATE, B.CONTACT
FROM TABLE1 A, TABLE2 B
WHERE (join condition fitting in the 3 condition mentioned above)

Dear OP,
Do you want something like this?
> with t1 as
-- Start of SAMPLE DATA
(select 1 CUSTOMER_ID, 'SKOKIE' CITY, 'IL' STATE from dual union
select 2, 'CHICAGO', 'IL' from dual union
select 3, 'CARY', 'NC' from dual union
select 4, 'ERIE', 'PA' from dual union
select 5, 'PHILLY', 'PA' from dual union
select 6, 'CHARLOTE', 'NC' from dual)
t2 as
(select null CITY, 'IL' STATE, 'OJO' CONTACT from dual union
select 'ERIE', null, 'BRITT' from dual union
select null, 'PA', 'MIKE' from dual union
select 'PITTSBURG', 'PA', 'HILTON' from dual union
select 'N043', 'TAT', 'affi' from dual union
select null,'B', 'affi' from dual union
select null,'R', 'b0b' from dual union
select null,'Q', 'b0b' from dual union
select 'CHARLOTE', 'NC', 'b0b' from dual
--- END IF SAMPLE Data
select * from t1 full outer join t2
on ( nvl(t1.city,t2.city) = nvl(t2.city,t1.city)
and nvl(t1.state,t2.state) = nvl(t2.state,t1.state) )
order by 1,2,3,4
CUSTOMER_ID CITY     STATE CITY      STATE CONTACT
          1 SKOKIE   IL              IL    OJO
          2 CHICAGO IL              IL    OJO
          3 CARY     NC
          4 ERIE     PA    ERIE            BRITT
          4 ERIE     PA              PA    MIKE
          5 PHILLY   PA              PA    MIKE
          6 CHARLOTE NC    CHARLOTE NC    b0b
                           N043      TAT   affi
                           PITTSBURG PA    HILTON
                                     B     affi
                                     Q     b0b
                                     R     b0b
12 rows selected
Elapsed: 00:00:00.112
Hope this is helpful. If not please let us know what is you desired result (sample) if your data was like above?
vr,
Sudhakar

Update Multiple Column with Single Command with Join between Two tables.

This is our command where we are trying to update a table's two columns by pulling values from another table after joining. This query takes too much time to execute. Any suggestions ?
UPDATE raw_alc_rmfscombinednew
SET (BSC, CELL_NAME) =
SELECT distinct raw_alc_R110combinednew.BSC, raw_alc_R110combinednew.CELL_NAME
FROM raw_alc_R110Combinednew
WHERE
raw_alc_R110Combinednew.OMC_ID = raw_alc_rmfscombinednew.OMC_ID
AND raw_alc_R110Combinednew.CELL_CI = raw_alc_rmfscombinednew.CI
AND RAW_ALC_R110COMBINEDNEW.START_TIME = RAW_ALC_RMFSCOMBINEDNEW.START_TIME
Results of Last execution:
Elapsed Time (sec) 4,476.56
CPU Time (sec) 4,471.88
Wait Time (sec) 4.68
Executions that Fetched all Rows (%) 100.00
Average Persistent Mem (KB) 32.43
Average Runtime Mem (KB) 31.59
--------------------------------------------------------------

Your update requires a full execution of the subquery for each row in the destination table (raw_alc_rmfscombinednew). Try rewriting as a MERGE. Tons faster.
MERGE INTO raw_alc_rmfscombinednew D
      USING ( SELECT distinct
                     BSC,
                     CELL_NAME
                     START_TIME
                FROM raw_alc_R110Combinednew ) S
         ON (    S.OMC_ID     = D.OMC_ID
             AND S.CELL_CI    = D.CI
             AND S.START_TIME = D.START_TIME )
    WHEN MATCHED THEN
      UPDATE
         SET D.BSC        = S.BSC,
             D.CELL_NAME = S.CELL_NAME

Inner Join between two big tables

Hi There,
I have a situation where in which I have to write an inner join between two table of the order of (30k to 60 rows).
My query is as simple as,
select A.a,B.b from A ,B where A.a = B.b;
N.B: a and b are of type varchar
But the problem is it takes nearly 15 mins to run. Is there any better way of doing an inner join between such bigger tables?
Thanks,
Jose John.

Thank you all for your help.....Indexing works....:)
--JJ

Joins between two schemas

Hi
I need data from two different schemas. Can develop one subject area taking 2 tables from 2 different schemas or we need to have these two tables from one schema only ?
Can any one help on this.
Thanks
Manu

Hi,
When you try to create physical join between these two tables of different schemas.
The join condition is REGION.REGION_CODE = REGION.REGION_ID
Note: The table name is same in both the schema.
Now as soon as I click on Ok, it gives an error.Because You can not create join between two tables with the same name.
So, create alias for these two tables and try to create the join with the same join condition.
It allowed me to create join perfectly. I moved ahead with the creation of Subject Area based out of these two tables.
Opened Presentation Services, selected few attributes from both the Presentation folders.But it gave ODBC error as :
Error Codes: OPR4ONWY:U9IM8TAC:OI2DL65P
State: HY000. Code: 10058. [NQODBC] [SQL_STATE: HY000] [nQSError: 10058] A general error has occurred. [nQSError: 46036] Internal Assertion: Condition m_CountFields == static_cast<int32>(m_ColumnNameVector.size()), file .\Src\SQCSCacheStorageListStream.cpp, line 221. (HY000)
Now in order to fix that issue, rename the base tables as Schema1_name.REGION and Schema2_name.REGION in the repository.
Reload the rpd and run the same report, it would give correct result.
But instead you can have the tables in the same schema for better maintenance activities.
Hope this solved your question.
Regards
MuRam

Sql join on two tables where column like another column

hi all,
been trying to get the results from a join between two tables where one column is like another one.
table1 (nameA) examples: black2, green1
table2 (nameB) example: black2.location.uk.com, green1.location.uk.com
so for example I want to match all those in table1 with black2 to the column in table2 that begins with black2 and so on if you see what im trying to get at!
my sql so far:
select * from schema.table1 a
join schema.table2 b
on a.nameA like concat('%', b.nameB, '%'); but it errors:
ORA-00909: invalid number of arguments
00909. 00000 - "invalid number of arguments"
Any help or advice would be greatly appreciated, thankyou!

Either of these should do it...
select * from schema.table1 a
join schema.table2 b on a.nameA like '%'||b.nameB||'%';or
select * from schema.table1 a
join schema.table2 b on instr(b.nameB,a.nameA) > 0

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.

[nQSError: 14044] Missing join between logical tables

Hi All,
I have three physical tables:
A- Dimension (Contact) B- Helper (Con-Prod) C- Dimension (Product). 'A' joins to facts.
Relationships are:
A:B=1:M and B:C=N:1
Currently a column of B table has been implemented as MLOV. As a result now I have one additional MLOV physical table 'D' that joins to 'B' (Since its B.MLOV_WID=D.MLOV_WID , its not a foreign key join).
The Logical Layer has three Logical tables: A, B and C as in the Physical Layer. B table has got one new LTS for 'D'.
Now the Problem is when I take a column that is sourced from D and another from C, it generates an error in Answers: Missing join between logical tables B and C. I have verified that the Logical and Physical joins exist.
I think this is something with the Logical level setup. So here's some more information on hierarchy setup. I have one Hierarchy (Contact) for all those Logical tables. I have setup Level for the MLOV column. I don't have level setup for most of the non-MLOV columns.
Can you please share your thoughts? I would like to avoid implicit join method.

Hi,
It seems like you are pulling a report from 2 tables with NO physical join.
Please check the physical layer diagram and join the 2 tables.
Thanks,
Vineeth

How to find the structural difference between two tables

Hi all,
How to find the structural difference between two tables .
Oracle Database 11g Enterprise Edition Release 11.1.0.7.0 - Production
PL/SQL Release 11.1.0.7.0 - Production
CORE 11.1.0.7.0 Production
TNS for 32-bit Windows: Version 11.1.0.7.0 - Production
NLSRTL Version 11.1.0.7.0 - Production
Thanks,
P Prakash

you could try something similar to this, for each table pair that you want to compare:
SELECT 'TABLE_A has these columns that are not in TABLE_B', DIFF.*
FROM (
        SELECT COLUMN_NAME, DATA_TYPE, DATA_LENGTH
          FROM all_tab_columns
         WHERE table_name = 'TABLE_A'
         MINUS
        SELECT COLUMN_NAME, DATA_TYPE, DATA_LENGTH
          FROM all_tab_columns
         WHERE table_name = 'TABLE_B'
      ) DIFF
UNION
SELECT 'TABLE_B has these columns that are not in TABLE_A', DIFF.*
FROM (
        SELECT COLUMN_NAME, DATA_TYPE, DATA_LENGTH
          FROM all_tab_columns
         WHERE table_name = 'TABLE_B'
         MINUS
        SELECT COLUMN_NAME, DATA_TYPE, DATA_LENGTH
          FROM all_tab_columns
         WHERE table_name = 'TABLE_A'
      ) DIFF;that's assuming, column_name, data_type and data_length are all you want to compare on.

How to write select statement between two tables

hi,
i need to do comparision between two table for each records.ex:
table1:
regid            regno         ind
1                 1001
1                 1002
1                 1003
1                  1004
and table2:
regid           regno
1               1002
1                1005
i need to select first row from table and loop for values in second table, if the values found first record , the record must update 'yes' to ind, if not 'No'.
please help with this.
thanks in advance
raja

Hi Raja,
Do it like this. loop the first table and read the second table.
Use where condition to satisfy the conditions.
Or
In your select query use joins. Like this.
SELECT mara~matnr
       marc~werks
INTO   TABLE t_material
FROM   mara AS mara INNER JOIN marc AS marc
ON     maramatnr = marcmatnr
WHERE mara~mtart = p_mtart.
Instead of MARA and MARC here use your tables.
Much Regards,
Amuktha.

How to build "Greater/less or Equal" relationships between two tables?

Hi,
Is there any straightforward approachs to realize the following kind of relationships between two tables?
Table1.process_end_date >= Table2.work_start_date and
Table1.process_end_date <= Table2.work_end_date
BTW, there's no common columns for these two tables to do simple joins (inner, outter...).
Thanks.
Regards,
Qilong

Sure.
Table.SelectRows filters a given table (in this case Table2) based on a function provided as the second argument.
(table2Row) => is the start of our filter function. It defines a function that takes one argument, called table2Row. Each row of Table2 will be passed to this function. If the function returns true, the row will be kept. If the function returns false,
the row will be filtered out.
The right hand side of the => is the filter expression. Because we're adding the custom column to Table1, we can reference a field in the current row of Table1 using square brackets (e.g. [process_end_date]). To reference the fields in the current row
of Table2, we have to index into the table2Row variable passed to our function (e.g. table2Row[work_start_date]).
Hope that helps.
Ehren

Joins between two tables generating Cartesian product

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