Inner join statement correction

For three different tables we can write select statement like below?if any correction pleas correct it.
select *
    from ekko as a
    inner join ekpo as b
      on aebeln = bebeln
      inner join ekkn as c
       on bebeln = cebeln
    into corresponding fields of table gt_data
    where a~zvoyn in s_zvoyn
      and a~ekgrp in s_ekgrp
      and a~ebeln in s_ebeln
      and a~zbookref2 in s_bookr
      and a~lifnr in s_lifnr
      and a~waers in s_waers
      and b~matnr in s_matnr
      and c~kostl in s_kostl..

HI Venkee,
Yes this query will work but to improve the performance
use the required field names in the order as they are in the table instead of ' * '
declare an internal table with this fields. assume gt_data
and
avoid using into corresponding.
Regards,
Md Ziauddin.

Similar Messages

Inner join Statement

Hi All,
I am using this inner Join Statement
      SELECT *
      FROM vbap AS a INNER JOIN vbak AS b
                     ON avbeln = bvbeln
                     AND amandt = bmandt
      WHERE a~vbeln IN lr_vbeln AND
            a~posnr IN lr_posnr AND
            a~aedat IN lr_aedat AND
          ( b~vbtyp EQ 'A' OR
            b~vbtyp EQ 'B' OR
            b~vbtyp EQ 'G' ).
But when i see the Output, One of the field ERDAT is geeting picked up from VBAK table instead of VBAP table.
Any pointers on how can we select the ERDAT from VBAP using this inner Join.
I dont want to use 2 select stetements.
Regards,
Mayank

In Inner join, it is always advisable to put the header table as First table and secondly, it should be advisable to fetch only the requried fields. I believe that you might not required all the fields of VBAP table.
Select A~Vbeln
          A~vbtyp
          B~posnr
          B~erdat
          into table I_VBAP
          from vbak as A innner Join VBAP as B
          on a~vbeln = b~vbeln
          where   a~vbeln IN lr_vbeln AND
                      b~posnr IN lr_posnr AND
                      b~aedat IN lr_aedat AND
                     ( a~vbtyp EQ 'A' OR
                       a~vbtyp EQ 'B' OR
                       a~vbtyp EQ 'G' ).

Using the max function in a inner joined statement

I am trying to take from a database with two joined tables various datas from the record belonging to paul that has the highest entry number.
String query = "SELECT Table1.name, Table1.idNumber, Table2.Address Table2.entryNum FROM Table1 INNER JOIN Table2 ON Table1.idNumber = Table2.idNumber WHERE Table2.entryNum = max ( Table2.entryNum) AND Table1.name = 'Paul'";
The error message i get is.
Cannot have aggregate function in WHERE clause
Thanks for any help

I am trying to take from a database with two joined
tables various datas from the record belonging to paul
that has the highest entry number.SELECT
Table1.name,
Table1.idNumber,
Table2.Address
Table2.entryNum
FROM Table1 INNER JOIN Table2 ON Table1.idNumber = Table2.idNumber
WHERE Table2.entryNum =
( select max( Table2.entryNum) from table1, table2
where table1.idNumber=table2.idNumber
AND Table1.name = 'Paul'" );

Alternative way for double inner join statement

SELECT SINGLE ALNUM INTO P_ITAB-ALNUM_AL FROM MAEX
         JOIN MARC ON MARCMATNR = MAEXMATNR
         JOIN T001W ON T001WWERKS = MARCWERKS
             WHERE MAEX~MATNR = P_VBPLP-MATNR
             AND    MARC~WERKS = T_VBDPL-WERKS
             AND    MAEXALAND = T001WLAND1
             AND    MAEX~GEGRU = 'DE'.
can any one suugest the best way to modify the above statement to improve the performence.
Thanks,
khasim.

Hi,
SELECT SINGLE ALNUM INTO P_ITAB-ALNUM_AL FROM MAEX
JOIN MARC ON MAEX~MATNR = MARC~MATNR
JOIN T001W ON MAEX~ALAND = T001W~LAND1
WHERE MAEX~MATNR = P_VBPLP-MATNR
AND MAEX~GEGRU = 'DE'.
AND MARC~WERKS = T_VBDPL-WERKS
AND T001W-WERKS = T_VBDPL-WERKS.
I have made the WHERE clause free from the comparison of two table fields and changed the second JOIN. The selection criteria, however is same as the SELECT query provided by you.
Try this query and positively let me know about its performance.
Regards,
Jayesh

Inner join with if statement , how to combine these code ?

Hello everyone, I have 2 group of code here. This 2 group of code is working without error. But I face a problem , I need to group up this 2 group of code. Please take a look, thank you This is the first code i create.
SELECT r.Name , r.Restaurant_ID, f.feature, r.Price_Range, r.Cuisine_ID, c.Cuisine,
    s.State_ID, s.State, l.Location_ID, l.Area, l.State_ID, r.Name, r.Location_ID
FROM Restaurants r, Bridge1_Restaurant_Features b, Features f, Cuisine c, State s, Location l
        where 0=0
        AND b.Feature_ID = f.Feature_ID
        AND b.Restaurant_ID = r.Restaurant_ID
        AND r.Cuisine_ID = c.Cuisine_ID
        AND r.Location_ID = l.Location_ID
        AND l.State_ID = s.State_ID
        <cfif ARGUMENTS.Feature_ID IS NOT "">
        AND b.Feature_ID IN (#ARGUMENTS.Feature_ID#)
        </cfif>
        <cfif ARGUMENTS.Price_Range IS NOT "">
        AND r.Price_Range IN (#ARGUMENTS.Price_Range#)
        </cfif>
        <cfif ARGUMENTS.Cuisine IS NOT "">
        AND r.Cuisine_ID = (#ARGUMENTS.Cuisine#)
        </cfif>
        <cfif val(ARGUMENTS.LocationID2) IS #val(ARGUMENTS.StateID)#>
        AND l.State_ID = #val(ARGUMENTS.LocationID2)#
        <cfelse>
            AND l.Location_ID = #val(ARGUMENTS.LocationID2)#
        </cfif>
Then, I notice the feature_ID i need to use another logic to show the result. The code is like this
SELECT r.Restaurant_ID, r.Name, f.Feature
FROM   Restaurants r
INNER JOIN Bridge1_Restaurant_Features b ON b.Restaurant_ID = r.Restaurant_ID
INNER JOIN Features f ON b.Feature_ID = f.Feature_ID
INNER JOIN
     SELECT Restaurant_ID, COUNT(Feature_ID) AS FeatureCount
     FROM   Bridge1_Restaurant_Features
     
     WHERE Feature_ID IN ( <cfqueryparam value="#ARGUMENTS.Feature_ID#" cfsqltype="cf_sql_integer" list="true"> )
    GROUP BY Restaurant_ID
    
     HAVING COUNT(Feature_ID) = <cfqueryparam value="#listLen(ARGUMENTS.Feature_ID)#" cfsqltype="cf_sql_integer">
) ck ON ck.Restaurant_ID = r.Restaurant_Id
I want combine this 2 group together. The second group have to replace
<cfif ARGUMENTS.Feature_ID IS NOT "">
    AND f.Feature_ID IN (#ARGUMENTS.Feature_ID#)
</cfif>
I try few way to group this 2 code, but fail to make it. The code i try is on below, it get error.
SELECT r.Name , r.Restaurant_ID, f.feature, r.Price_Range, r.Cuisine_ID, c.Cuisine,
        s.State_ID, s.State, l.Location_ID, l.Area, l.State_ID, r.Location_ID
        FROM Restaurants r, Features f, Cuisine c, State s, Location l
        INNER JOIN Bridge1_Restaurant_Features b ON b.Restaurant_ID = r.Restaurant_ID
        INNER JOIN Features f ON b.Feature_ID = f.Feature_ID
        AND r.Cuisine_ID = c.Cuisine_ID
        AND r.Location_ID = l.Location_ID
        AND l.State_ID = s.State_ID
        <cfif ARGUMENTS.Feature_ID IS NOT "">
        INNER JOIN
             SELECT Restaurant_ID, COUNT(Feature_ID) AS FeatureCount
             FROM   Bridge1_Restaurant_Features
             
             WHERE Feature_ID IN ( <cfqueryparam value="#ARGUMENTS.Feature_ID#" cfsqltype="cf_sql_integer" list="true"> )
            GROUP BY Restaurant_ID
            
             HAVING COUNT(Feature_ID) = <cfqueryparam value="#listLen(ARGUMENTS.Feature_ID)#" cfsqltype="cf_sql_integer">
        ) ck ON ck.Restaurant_ID = r.Restaurant_Id
        </cfif>
        <cfif ARGUMENTS.Price_Range IS NOT "">
        AND r.Price_Range IN (#ARGUMENTS.Price_Range#)
        </cfif>
        <cfif ARGUMENTS.Cuisine IS NOT "">
        AND r.Cuisine_ID = (#ARGUMENTS.Cuisine#)
        </cfif>
        <cfif val(ARGUMENTS.LocationID2) IS #val(ARGUMENTS.StateID)#>
        AND l.State_ID = #val(ARGUMENTS.LocationID2)#
        <cfelse>
            AND l.Location_ID = #val(ARGUMENTS.LocationID2)#
        </cfif>

Yeah Adam I am listen to you ! But Finally i solve it.
This is the code i solve .
SELECT r.Restaurant_ID, r.Name, f.Feature, r.Price_Range, r.Cuisine_ID, c.Cuisine,
                    l.Location_ID, l.Area, s.State
          FROM   Restaurants r
          <cfif ARGUMENTS.Feature_ID IS NOT "">
          INNER JOIN
               SELECT Restaurant_ID, COUNT(Feature_ID) AS FeatureCount
               FROM   Bridge1_Restaurant_Features
               
               WHERE Feature_ID IN ( <cfqueryparam value="#ARGUMENTS.Feature_ID#" cfsqltype="cf_sql_integer" list="true"> )
              GROUP BY Restaurant_ID
              
               HAVING COUNT(Feature_ID) = <cfqueryparam value="#listLen(ARGUMENTS.Feature_ID)#" cfsqltype="cf_sql_integer">
          ) ck ON ck.Restaurant_ID = r.Restaurant_Id
          </cfif>
          INNER JOIN Location l ON r.Location_ID = l.Location_ID
          INNER JOIN State s ON l.State_ID = s.State_ID
          INNER JOIN Cuisine c ON r.Cuisine_ID = c.Cuisine_ID
          INNER JOIN Bridge1_Restaurant_Features b ON b.Restaurant_ID = r.Restaurant_ID
          INNER JOIN Features f ON b.Feature_ID = f.Feature_ID
          <cfif ARGUMENTS.Cuisine IS NOT "">
          AND r.Cuisine_ID = (#ARGUMENTS.Cuisine#)
          </cfif>
          <cfif ARGUMENTS.Price_Range IS NOT "">
          AND r.Price_Range IN (#ARGUMENTS.Price_Range#)
          </cfif>
          <cfif val(ARGUMENTS.LocationID2) IS #val(ARGUMENTS.StateID)#>
          AND l.State_ID = #val(ARGUMENTS.LocationID2)#
          <cfelse>
               AND l.Location_ID = #val(ARGUMENTS.LocationID2)#
          </cfif>
Is it the code can be improve more ?

Urgent: Regarding Inner join relation b/w MSEG, MKPF, MARA and MAKT

I have written o code like below for inner join. However, The program has take much more time to give out put. Could any one please correct the below inner join statement. Its very urgent.
Thanks for your help.
SELECT mseg~mblnr
          mseg~matnr
          mseg~werks
          mseg~charg
          mseg~lifnr
          mseg~bualt
          mseg~erfmg
          mseg~ebeln
          mseg~ebelp
          mkpf~budat
          mara~zzshelf_life
          makt~maktx
          FROM mseg
          INNER JOIN mkpf
            ON mkpfmblnr EQ msegmblnr
          INNER JOIN mara
            ON msegmatnr EQ maramatnr
          INNER JOIN makt
            ON maramatnr EQ maktmatnr
          INTO TABLE gt_mat_doc
          WHERE mseg~matnr IN s_matnr
            AND mseg~werks IN s_werks
            AND mseg~lifnr IN s_lifnr
            AND mseg~bwart EQ p_bwart
            AND ( msegebeln NE ' ' AND msegebeln IN s_ebeln )
            AND mkpf~budat IN s_budat
            AND mara~mtart IN s_mtart
            AND makt~spras EQ sy-langu.

Hi,
Do like this
Types: begin of ty_mesg_mkpf,
         mblnr type mseg-mblnr,
         matnr type mseg-matnr,
         werks type mseg-werks,
         charg type mseg-charg,
         lifnr type mseg-lifnr,
         bualt type mseg-bualt,
         erfmg type mseg-erfmg,
         ebeln type mseg-ebeln,
         ebelp type mseg-ebelp,
         budat type mkpf-budat,
       end of ty_mseg_mkpf,
       Begin og ty_mara_makt,
        matnr type mara-matnr,
        zzshelf_life type mara-zzshelf_life,
        maktx type makt-maktx,
       end of ty_mara_makt.
Data: it_mseg_mkpf type table of ty_mseg_mkpf,
      wa_mseg_mkpf type ty_mseg_mkpf,
      it_mara_makt type table of ty_mara_makt,
      wa_mara_makt type ty_mara_makt.
SELECT m1~mblnr
m1~matnr
m1~werks
m1~charg
m1~lifnr
m1~bualt
m1~erfmg
m1~ebeln
m1~ebelp
m2~budat
FROM mseg
INTO TABLE it_mseg_mkpf
INNER JOIN mkpf
ON m1mblnr EQ m2mblnr
WHERE m1~matnr IN s_matnr
AND m1~werks IN s_werks
AND m1~lifnr IN s_lifnr
AND m1~bwart EQ p_bwart
AND ( m1ebeln NE ' ' AND m1ebeln IN s_ebeln )
AND m2~budat IN s_budat
if sy-subrc = 0.
Select m3~matnr
m3~zzshelf_life
m4~maktx from mara as m3
INNER JOIN makt as m4
ON m3matnr EQ m4matnr
INTO TABLE it_mara_makt
where m3~mtart IN s_mtart
AND m4~spras EQ sy-langu.
endif.
loop at it_mseg_mkpf into wa_mseg_mkpf.
Move necessary field values from wa_mseg_mkpf to wa_mat_doc.
Read table it_mara_makt into wa_mara_makt with key matnr = wa_mseg_mkpf-matnr.
if sy-subrc = 0.
move remaining field values to wa_mat_doc.
append wa_mat_doc to gt_mat_doc.
clear wa_mat_doc.
endif.
endloop.
Regards,
Satish

Why can't i use "INNER JOIN" in a query for SQL Server with JDBC??????

Hi,
I'm trying to execute some SQL queries and I just don't understand what's wrong.
I�m using Tomcat and SQL Server in order to do this, but when I�m try to execute a query with a INNER JOIN statements Tomcat raise a SQL exception... at the very first time I thought there was a problem with database connection but I realize that a simple query to a table works pretty well. then I found out some problems with JDBC:ODBC.... so I install JDBC for SQL Server 2000 and test with the same simple query and works..... so, I come to a conclusion.... INNER JOIN or JOIN statements can't be used in JDBC..... please... somebody tell I�m wrong and give me a hand...
I'm using TOMCAT 4 and JDK 1.4 SQL Server 2000
Error occurs when executeQuery() is called.... not prepareStatement().... ??????
Driver DriverRecResult = (Driver)Class.forName(driver).newInstance();
Connection ConnRecResult = DriverManager.getConnection(DSN,user,password);
PreparedStatement StatementRecResult = ConnRecResult.prepareStatement(query);
ResultSet RecResult = StatementRecResult.executeQuery(); <---- Exception raise here
So much tahnks in advance,

That's exactly what I think, driver it's raising the exception, but I don't know why.... i test the same query with INNER JOIN directly from SQL Query Analyser and it's works perfectly, my problem ain't SQL, but JSP and JDBC 'cause i'm a newbie about these issues.
Common sense tell me possible problems lie in SQLServer drivers 'cause i run the same pages on JRUN through jdbc:odbc and do works well, but by now i just depend on Tomcat.....
I've installed SQL Server drivers for JDBC but i just find it doesn't work fully... could be the version of JDK i've installed? what version do i need?
( I'm running Tomcat 4 with JDK 1.4 & SQL Server 2000 W2K )
thanks for reply.

Inner Join.

I am using a Inner join statement. I dont see any problem in DEV but i see some problems in PMT. IT duplicating the records in the output. I see the same order twice.
The statement is,
    SELECT plaf~plnum
           maranormt plafmatnr
           makt~maktx
           plafpwwrk plafpaart plaf~verid
           plafauffx plafpsttr plafgsmng plafplscn
      INTO TABLE t_plaf
      FROM plaf
     INNER JOIN mara
        ON plafmatnr EQ maramatnr
     INNER JOIN makt
        ON maramatnr EQ maktmatnr
       FOR ALL entries IN t_mara
     WHERE plaf~matnr = t_mara-matnr.
However i looked into the MAKT table. I see 2 descriptions for the same material no.
I am assuming thats the problem.
ANy suggestions.
Ster.

> Hello,
>
> Check this code . I tried it now and it's working
>
>
> Tables: plaf,mara,makt.
>
> Data: it_plaf type standard table of plaf.
> data: it_mara type standard table of mara,
>       it_makt type standard table of makt.
> ct-options: s_plnum for plaf-plnum,
>                 s_matnr for mara-matnr.
> plaf into table it_plaf
>          where plnum in s_plnum
> and matnr in s_matnr.
>
> if it_plaf[] is not initial.
>
>    select * from mara into table it_mara
>        for all entries in it_plaf
>    where matnr = it_plaf-matnr.
> Select * from makt into table it_makt
>          for all entries in it_plaf
> where matnr = it_plaf-matnr.
>
> endif.
>
> Loop at it_mara into wa_mara.
> read table it_plaf into wa_plaf with key matnr =
> wa_mara-matnr.
> if sy-subrc = 0.
> move-corresponding to wa_final.
> endif.
> read table it_makt into wa_makt witk key matnr =
> wa_mara-matnr.
> if sy-subrc = 0.
> Move-corresponding to wa_final.
> endif.
> append wa_final to it_final.
> clear: wa_mara,wa_plaf,wa_final.
> endloop.
>
>
> Regards,
> Deepu.K
It would be better for performance to use Field-Symbols -;)
FIELD-SYMBOLS: <MARA> LIKE LINE OF IT_MARA.
Loop at it_mara into <MARA>.
*Process data....
endloop.
Greetings,
Blag.

Help with Inner join problem

The following query works fine as long as there is a value in the subID field, which is at the end of the inner join statement. If the subID is blank then no data is output, even though it is there. Try as I may, I can not get the right solution in the where statement to get the data to show without the subID. What am I missing?
<cfquery name="getInfo" datasource="#application.database#">
select page_id, pageName, pages.content, pages.cat_id, pages.seo_title,pages.seo_desc,pages.seo_words,pages.h1_title,pages.pic,pages.brochure,pa ges.video,catagories.catagory,subcat.subID,subcat.sub_category
from (pages INNER JOIN catagories ON pages.cat_id = catagories.cat_id) INNER JOIN subcat ON pages.subID = subcat.subID
where pages.page_id = #page_id#
</cfquery>

Rick,
Looks like you need a LEFT OUTER join to the "subcat" table, so that all records for "pages" and "catagories" are returned even if no matching "subcat" records exist. INNER joins will only return selected records when the tables on both sides of the join statement have matching values, while a LEFT OUTER (sometimes also known simply as a LEFT join) join will return *all* selected records from the table(s) on the left side of the join statement regardless of whether there are matching records from the table on the right side of the join statement. When there are no matching records from the table on the right side of the join statement, any columns in your SELECT clause that are from the table on the right side of the join statement will contain NULLs.
HTH,
-Carl V.

Avoiding inner joins????

Hi all,
I was just thinking of ways to improve the perfomance of my report. Its fetching data in to two different tables using two innerjoins and these two internal tables are again looped for some other manipulation. Can anyone tell me the ways i can avoid innerjoin or is there other ways to improve psrfomance by avoiding innejoins in general?
Rakesh

hi sir i was able to find out that
Using several nested INNER JOIN statements can be inefficient and cause time out if the tables become too big in the future."
Joins here (in ABAP) are not those Native SQL Joins. If you are talking about the Core RDBMS, which mean Oracle or SQL Server, then Undoubtedly Joins are the best.
In ABAP, these joins are first split by the ABAP processor and then sent to the database, with the increase in DATA in production system, these joins tend to give way if your database keeps growing larger and larger.
You should rather used "FOR ALL ENTRIES IN" (Tabular conditions), which is a much effecient way as far as performance is concerned.
For example :
DATA: BEGIN OF LINE,
        CARRID   TYPE SPFLI-CARRID,
        CONNID   TYPE SPFLI-CONNID,
        CITYFROM TYPE SPFLI-CITYFROM,
        CITYTO   TYPE SPFLI-CITYTO,
      END OF LINE,
      ITAB LIKE TABLE OF LINE.
LINE-CITYFROM = 'FRANKFURT'.
LINE-CITYTO   = 'BERLIN'.
APPEND LINE TO ITAB.
LINE-CITYFROM = 'NEW YORK'.
LINE-CITYTO   = 'SAN FRANCISCO'.
APPEND LINE TO ITAB.
SELECT CARRID CONNID CITYFROM CITYTO
INTO   CORRESPONDING FIELDS OF LINE
FROM   SPFLI
FOR ALL ENTRIES IN ITAB
WHERE CITYFROM = ITAB-CITYFROM AND CITYTO = ITAB-CITYTO.
WRITE: / LINE-CARRID, LINE-CONNID, LINE-CITYFROM, LINE-CITYTO.
ENDSELECT.
Do you have a ABAP Question?
Best regards,
SAP Basis, ABAP Programming and Other IMG Stuff

Reports - Inner Joins

Dear Friends,
I need to prepare a classic report based on the following parameters :
I would like to know, how to join these three tables using Inner Joins - MARA, MARC, MSTA.
I should be able to view the fields from these tables.
I tried out with the common fields from these tables, viz. MARA - MATNR - MARC, MARC - WERKS - MSTA.
I would appreciate, if anyone replies me with the select statement using the above mentioned tables using Inner Joins statement with any common fields .
Thanking you in anticipation.

Dear dinesh kumar
1. We can join the three tables with matnr field.
2. WERKS has to be provided from the program - (plant).
   ie. For which plant, data is required.
3. Due to MSTA table, you may get multiple records
   for same MATNR. bcos of maintenance records
   by different departments in MSTA Table.
If it helps, pls give points.
REPORT abc.
data : begin of itab occurs 0,
       matnr like mara-matnr,
       "---- Other Fields
       end of itab.
data : matnr like mara-matnr.
data : werks like marc-werks.
Query
select a~matnr
into table itab
from mara as a
inner join marc as b
on amatnr = bmatnr
inner join msta as c
on amatnr = cmatnr
Required Conditions From Program
where a~matnr = matnr
and b~werks = werks.
Thanks & Regards,
Amit Mittal.

Re field order in INNER JOIN

Hi,
I need a suggestion for improvement of my inner JOIN statement.
internal table itab is of below type
type: begin of ty_itab
        field a
        field b
        field c
        field d
        end of ty_itab
I have to join two database table TABLE1 and TABLE2. Fields a and d are from TABLE2 and fields b and c are from TABLE 1.
But in the internal table I must have the fields in the order fielda,b,c,d.
Which of the below two options will be better for performance ? And why ?
option 1:
SELECT tab2~a
              tab1~b
              tab1~c
              tab2~d into corresponding fields of itab from TABLE1 as tab1 and TABLE2 as tab2 on..........
option2:
SELECT tab1~b
              tab1~c
              tab2~a
              tab2~d into corresponding fields of itab from TABLE1 as tab1 and TABLE2 as tab2 on..........
Thanks in advance...
Best Regards
Ananya Mukherjee
Moderator message - Cross post locked
Edited by: Rob Burbank on May 28, 2009 9:43 AM

I am not satisfied with your two options. Because of following reason,
1. First I want to know which one is master table and item table. Because in inner join select query you want to use master table as first and you want to use the item table as second.
Example:
SELECT TAB2A TAB1B TAB1C TAB2D
      INTO TABLE ITAB
    FROM <MASTER TABLE1> AS TAB1 INNER JOIN <ITEM TABLE2> AS TAB2 ON..........
2. You should not use the INTO CORRESPONDING FIELDS OF ITAB. Instead of this you can change the field order in internal table or in select query.
Example:
Use following way
TYPE: BEGIN OF TY_ITAB
                FIELD A
                FIELD B
                FIELD C
                FIELD D
           END OF TY_ITAB
SELECT TAB2A TAB1B TAB1C TAB2D
     INTO TABLE ITAB
   FROM <MASTER TABLE1> AS TAB1 INNER JOIN <ITEM TABLE2> AS TAB2 ON..........
Or , Anyway you are going to use in program only. It will not affect your logic if change the field order in the internal table.
TYPE: BEGIN OF TY_ITAB
                FIELD B
                FIELD C
                FIELD A
                FIELD D
          END OF TY_ITAB
SELECT TAB1B TAB1C TAB2A TAB2D
     INTO TABLE ITAB
   FROM <MASTER TABLE1> AS TAB1 INNER JOIN <ITEM TABLE2> AS TAB2 ON..........
3. In inner join query, the order of Where condition also create the perform issue. Because in where condition maximum you try to use all the primary key from <MASTER TABLE1> and <ITEM TABLE2> and field order in where condition should be same order in <MASTER TABLE1> and <ITEM TABLE>.
This are the things you want to take care when you try to use INNER JOIN Query. If you have any clarification please let me know. I will try answer your Questions.
Ravi.
Edited by: RavivarmanP on May 28, 2009 6:55 PM

Dynamic Inner Join in 4.6c

Requirement is dynamic specification of Table name in inner join. The table names to be used in join would be derived in a variable using select statement. These names to be supplied to join dynamically. The other join conditions and where conditions will remain same.
For example :
On the basis of 1st select statement tables names are fetched in 2 variables tab1 & tab2.
Now want to use these two variables in inner join statement.
Searched and as per few example tried to do in following manner but its not working
data: tab1(10) type c value 'MARA',
        tab2(10) type c value 'MAKT'.
data: dbtab1(10) type c,
         dbtab2(10) type c .
dbtab1 = tab1.
dbtab2 = tab2.
DATA: BEGIN OF itab occurs 0,
           matnr TYPE mara-matnr,
           maktx type makt-maktx,
END OF itab.
DATA: column_syntax TYPE string,
            dbtab_syntax TYPE string.
PARAMETERS: p_matnr TYPE mara-matnr.
dbtab_syntax = '( (dbtab1) AS t1 '
&' INNER JOIN (dbtab2) AS t4 ON t1~MATNR = t4~MATNR )'.
SELECT matnr maktx
FROM (dbtab_syntax)
INTO TABLE itab WHERE t4~matnr   = p_matnr.
Got the following error:
"A table name, specified in an SQL command, is unknown"
It seems not able to identify table name dynamiccaly in dbtab_syntax.
thanks
anya
Edited by: Thomas Zloch on Nov 29, 2010 10:18 AM - please use code tags

Hi Anya,
Following code will be work
CONCATENATE dbtab1 ' as t1 INNER JOIN ' dbtab2 ' as t4 ON t1MATNR = t4MATNR ' INTO dbtab_syntax RESPECTING BLANKS.
TRANSLATE dbtab_syntax TO UPPER CASE.
SELECT t1~matnr maktx
FROM (dbtab_syntax)
INTO TABLE itab WHERE t4~matnr   = p_matnr.
Note the following point
1) Don't used un-necessary bracket inside the SQL.
2) Specify alias name or table name when fields exit in both table while projection.
    i.e. SELECT matnr maktx will be now SELECT t1~matnr maktx

Inner join select

I had my data declaration as below.
DATA :BEGIN OF t_plaf OCCURS 0,
       normt LIKE mara-normt,
       matnr LIKE plaf-matnr,
       pwwrk LIKE plaf-pwwrk,
       paart LIKE plaf-paart,
       verid LIKE plaf-verid,
       auffx LIKE plaf-auffx,
       psttr LIKE plaf-psttr,
       gsmng LIKE plaf-gsmng,
      END OF t_plaf.
corresponding inner join statement
SELECT maranormt plafmatnr
         plafpwwrk plafpaart plaf~verid
         plafauffx plafpsttr plaf~gsmng
    INTO TABLE t_plaf
    FROM plaf
   INNER JOIN mara
      ON plafmatnr EQ maramatnr
   WHERE plaf~paart = 'LA'.
Now I have changed the declaration as below
DATA : BEGIN OF t_plaf OCCURS 0,
       normt LIKE mara-normt.
        INCLUDE STRUCTURE plaf.
DATA : END OF t_plaf.
now i have changed the data declaration as mentioned above and need a inner join statement for the data declaration i have specified.
Any suggestions,
MAdhu

Hi Madhu,
USE INTO CORRESPONDING option instead of INTO TABLE.
SELECT maranormt plafmatnr
plafpwwrk plafpaart plaf~verid
plafauffx plafpsttr plaf~gsmng
<b>INTO CORRESPONDING FIELDS OF TABLE t_plaf</b>
FROM plaf
INNER JOIN mara
ON plafmatnr EQ maramatnr
WHERE plaf~paart = 'LA'.
Thanks,
Vinay

How to Join two tables using the Inner Join

Hi All,
I have two tables i.e table1 and table2 as i have created two otds and my present requirement is to join this two tables and get the results and using this i need to do some logic and update another table3.
can some one help me out how to go for the above req.
Thanks in Advance
Srikanth

The best efficient way to use inner join is create two input otds,use there otd's in create a collaboration usinf etl.
after selecting two input otd's create a inner join statement and map it to out put otd.
while using the etl the performance of the over all integration is increased 20 time of the normal integration.
Hopes this will helps,,
Thanks,
Papa Rao.

Inner join statement correction

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