VBA needs to pull from multiple tables, how to code for best efficiency?

I have one main table, and three other tables that exist in a one to many relationship off of the main table.
I need data from all 3 tables for my calculation. I'll iteratively run through the recordsets of each of these tables for the record on the main table, to perform my calculation.
Now I need to run this calculation for each record on the main table. I see two options:
1. Query the three tables for relevant records, for each individual record on the master table. I suspect this approach would be computationally inefficient.
2. Create additional logic within my calculation to limit the recordset movement to just the record at hand. I can no longer use end of field, or move first type properties/methods, so this will add a good bit of complexity to already complex code.
I'll need to run this monthly for approx 3000-5000 records.

Since you can't include multiple independent 1-many relationships in a single query, I only see two choices.
You can open a recordset for each of the four tables sorted by the main table's primary key. Use an outer loop to move through the main table row by row. Within that loop you loop on each of the child tables using the condition While child.Fields("FK")
= parent.Fields("PK").
Another approach is to define a querydef for each of the child tables including a parameter for the foreign key value. Then within the outer loop you assign the parameter and open a recordset from each of the child querydefs. You're still querying the
database 3 times for each iteration of the parent table, but I think it saves some time to be able to reuse the querydef instead of creating a new one each time.
I think either approach should be fast enough for 3-5,000 records done monthly.
Paul

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Sender JDBC Adapter : Fetch records from multiple tables

Hi Friends,
I am using sender JDBC adapter to select few records from DB2 database table.
This scenario is working fine.
Now my requirement is to fetch records from 3 tables. These table are independent to each other. There is no primary key or foreign key.
Please let me know how to write the sql in sender JDBC adapter to fetch records from these 3 tables.
Thanks,
Sandeep Maurya

hi sandeep...
if the tables are completely independent and do not share any primary / foreign key relation ship...
why dont u think towards creating a seperate interface for each of them..
or if u still want to select from multiple table at once..the best way would be to write a stored procedure on the sender side which do all the fetching n processing and pass the final resultset to PI
or u can think towards fetching the data from 1 table and then in UDF do lookup from other tables..which again is tricky and performace intensive

How to extract data from multiple tables (always got errors)

Dear Experts,
I have a simple mapping to extract data from multiple tables as a source (A, B, C) to a target table (X). Below is the picture:
(Sources)....(Target)
A----------------***
B----------------X
C----------------***
Sample Source Data:
Table A:
ColA1
100
200
etc
Table B:
ColB1 ColB2 ColB3
10 Y Ten
20 Y Twenty
30 Y Thirty
etc
Table C:
ColC1 ColC2
11
12
13
etc
Target table (X) should be (just has 1 group INGRP1):
ColA1 ColB1 ColB3 ColC1
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100 10 Ten 12
100 20 Twenty 21
etc
Scenarios:
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2. Map each source to Expression Operator and then map from each Expression to target table. I am able to map all attributes successfully but got error when validating it with message: "VLD-1104: Attributes flowing into TEST.EXPR_SRC.INGRP1 have different data sources."
How can I achieve the correct mapping for this purpose?
Use Joiner? I have no key to join the sources
Use Set? The sources have different number of columns
Thanks in advance
Prat

Thanks Nico,
I think it will results data like this:
100 10 Ten 11
200 20 Twenty 12
300 30 Thirty 13
etc
and not the expected:
100 10 Ten 11
100 10 Ten 12
100 20 Twenty 21
etc
But it inspired me to solve this by adding key expression in each source table (B & C) to be joined to table A with this formula:
100+TRUNC(INGRP1.COLB1,-2)
Regards
Prat

JDBC-XI-FILE scenario. How to extract data from multiple tables

Hi,
At this moment I didn't have the access for XI system. So here I have some silly question. Could you please clarify the same ??
If I got to extract data from single table using JDBC adapter I can put the below query in communication channel
SELECT *FROM orders WHERE new='true'.
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SELECT <Table_2>.EID, <Table_2>.FName, <Table_2>.LName, <Table_1>.REC_DAT, <Table_1>.DESCRP
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union
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Thanks
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Hi Palnati,
You either use a select query with join or a stored procedure which will contain the logic to extract the data from multiple tables. But, the limitation in case of stored procedure is u can hv only one selct query in it.
You write ur actual query provided in the parameter 'Query SQL Statement". u can also wrt a stored procedure in it. Also, u can provide a update statement in it which will update a certain flag so tht u don selct the data again.
Check the following link
<a href="http://help.sap.com/saphelp_nw04/helpdata/en/14/80243b4a66ae0ce10000000a11402f/frameset.htm">http://help.sap.com/saphelp_nw04/helpdata/en/14/80243b4a66ae0ce10000000a11402f/frameset.htm</a>
Regards,
Akshay
Message was edited by:
Akshay Salunke

ALV for fields from multiple tables and make them editable

Hi,
I am working on a forecasting report. We have created few custom table e.g. store forcaset detail for whole year month wise. tables are say sales data, budget data, forcast data etc.
Now i need to make a report based on monthwise based on above mention table.
eg.o/p looks like:
column name                     type desc monthapr monthmay .......
table forcast                      Qty sales    100          150
table budget/sales             amt   amou    20.50    130.50
table sales vs forcast       amt   amount 3000     50000
-Now i don't know how to display data from multiple table in single ALV list that to with different field type.
-2nd issue is i need to make only perticuler row editable so that user can chage data.
-3rd when user change data and press calulate button - it should calculate data for future month - i got formula for that and disply the calulated data.
- 4th if user like the forcast data then when press save - change data should update dbtable.
Is this all possible with simple abap FM Or need to use ABAPOO.
I will appericiate all expert help.
Many thanks in advance.
KDE.
Edited by: kde_test on Jun 4, 2010 5:44 PM

Hi,
Solutions :
1. You can use FM REUSE_ALV_HIERSEQ_LIST_DISPLAY as guided by Ashutosh.
You can also check out this
[http://www.sap technical.com/Tutorials/ABAP/3DGraph/demo.htm] change link to saptechnical without space
2. [How to make certain rows in ALV grid editable...;
3 & 4. Use two importing paramaters 'PF_STATUS_SET' 'USER_COMMAND' of REUSE_ALV_GRID_DISPLAY.
create two function codes 'CALC and 'SAVE' in pf-status and provide your required functionality to these function codes using User-Command.
Sorry am unable to provide you with supporting code, but you can search for it and It can solve your problem
Regards,
Rohit

Sample PHP Service selecting from multiple tables

Hi all!
I have the following challange:
How do I properly set up my PHP-service to insert, select, update and delete values from multiple tables?
So far, the standard templates generated by Flash Builder is based on a single table.
Example: I have 2 tables: [person] and [school]
[person] has [person_id, first_name, last_name, birthdate]
[school] has [school_id, person_id, school_name, city]
One [person] can have multiple [schools]
How should I define the selectByID function in PHP to be able to have
First name: [TextInput /]
Last name: [TextInput /]
Birthdate: [DateField /]
Schools:
[TabBar: School1, School2, School3 /]
[ViewStack1]
School name: [TextInput /]
Location name: [TextInput /]
[/ViewStack1]]
[ViewStack2]
School name: [TextInput /]
Location name: [TextInput /]
[/ViewStack2]]
[ViewStack3]
School name: [TextInput /]
Location name: [TextInput /]
[/ViewStack3]]
And even more interesting: How do I update all these fields back to the database?

First, the relationship between school and person is many-to-many NOT one-to-many -- you will need to add a junction table.
From the form you have given I would handle insertions like this:
loop through all the schools and see if the school already exist in the DB. If so, then store the school_id. If not, then create a new record and store the id. You should have an array collection of store_ids by the end of the loop
Check whether the student exists w/in the DB. If so, then you might consider aborting the operation or you could opt to do an update. If the student doesn't exist, then create a new student record and store the new student_id (mysql::insert_id)
Loop through the school_id array and add new student_id/school_id records into the junction table.
Retrieving records is much simpler -- it's just a join on the tables i.e. "SELECT * FROM student INNER JOIN school_student ON student.student_id = school_student.student_id INNER JOIN schools ON school_student.school_id = school.school_id WHERE student.first_name = 'John' AND student.last_name = 'Doe' (assuming there aren't more than one John Does of course!).
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XDK Export in XML from multiple tables

Hello everybody,
I have to export data from an Oracle database to a XML file and then generate the Java classes.
1)
I used XSU successfully with one table. My problem is to retrieve data not from a unique table but from multiple tables linked by relations.
I wanted to do this using XSU to retrieve data from the database and create the corresponding XML schema.
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Can someone help me to explain if it is possible to export from multiple tables (and if yes how)?
2)
Having my XML schema then I will have to generate Java objects. How is it possible with the XML Class Generator for Java?
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Many Thanks in advance!

Hi Elodie,
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Update data provider queryspecification wiith columns from multiple tables

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I have scenario like I need updated a queryspecificaiton with columns from multiple tables
1. Ex:
<bOQuery name="Query">
<resultObjects identifier="DS0.DO1" name="A$Application_ID"/>
<resultObjects identifier="DS0.DO2" name="A$Column_Name"/>
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Please help me.
Thanks
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- Ludek
Senior Support Engineer AGS Product Support, Global Support Center Canada
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Generic datasource by function module to fetch data from multiple tables?

I'm writing a function module to fetch price, for generic datasource.
At first, extract test is OK. But InfoPackage never stop when loading data to PSA in BW.
And I find the example codes:
     OPEN CURSOR WITH HOLD S_CURSOR FOR
      SELECT (S_S_IF-T_FIELDS) FROM SFLIGHT
                               WHERE CARRID IN L_R_CARRID AND
                                     CONNID IN L_R_CONNID.
    ENDIF.                             "First data package ?
* Fetch records into interface table.
*   named E_T_'Name of extract structure'.
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               APPENDING CORRESPONDING FIELDS
               OF TABLE E_T_DATA
               PACKAGE SIZE S_S_IF-MAXSIZE.
    IF SY-SUBRC <> 0.
      CLOSE CURSOR S_CURSOR.
      RAISE NO_MORE_DATA.
    ENDIF.
    S_COUNTER_DATAPAKID = S_COUNTER_DATAPAKID + 1.
ENDIF.
There using Cursor to fetch data package by package, and raise exception NO_MORE_DATA to stop the loading process.
Now I fetch data from multiple tables, I don't think I can use Cursor.
Then How can I handle this?
Thanks a lot.

Thanks
IF IT_999[] IS INITIAL.
    SELECT A~KNUMH A~MATNR A~KSCHL VKORG VTWEG A~DATBI A~DATAB KBETR KMEIN KPEIN C~MTART APPENDING CORRESPONDING FIELDS OF
      TABLE TP_DATA
        FROM A999 AS A
          INNER JOIN KONP AS B
              ON A~KNUMH = B~KNUMH
          INNER JOIN MARA AS C
             ON A~MATNR = C~MATNR
*          FOR ALL ENTRIES IN IT_999
                WHERE
*      A~KNUMH = IT_999-KNUMH AND
       ( ( A~KSCHL = 'ZPRC' AND VKORG = 'Z000' AND VTWEG = 'Z1' ) OR
                      ( A~KSCHL = 'ZPRD' AND VKORG = 'A000' AND VTWEG = 'Y3' ) ) AND
*                      A~DATBI >= SY-DATUM AND
                      LOEVM_KO = ''.
    SELECT A~KNUMH A~MATNR A~KSCHL VKORG VTWEG A~DATBI A~DATAB KBETR AS KHETR KMEIN KPEIN C~MTART APPENDING CORRESPONDING FIELDS OF
      TABLE TP_DATA
        FROM A999 AS A
          INNER JOIN KONP AS B
              ON A~KNUMH = B~KNUMH
          INNER JOIN MARA AS C
             ON A~MATNR = C~MATNR
*          FOR ALL ENTRIES IN IT_999
                WHERE
*      A~KNUMH = IT_999-KNUMH AND
      A~KSCHL = 'ZPR3' AND A~VKORG = 'I000' AND
*                      DATBI >= SY-DATUM AND
                      LOEVM_KO = ''.
ENDIF.
IF IT_997[] IS INITIAL.
    SELECT A~KNUMH A~MATNR A~KSCHL VTWEG A~DATBI A~DATAB KBETR AS KHETR KMEIN KPEIN C~MTART APPENDING CORRESPONDING FIELDS OF
      TABLE TP_DATA
        FROM A997 AS A
          INNER JOIN KONP AS B
              ON A~KNUMH = B~KNUMH
          INNER JOIN MARA AS C
             ON A~MATNR = C~MATNR
*          FOR ALL ENTRIES IN IT_997
                WHERE
*      A~KNUMH = IT_997-KNUMH      AND
      A~KSCHL = 'ZPRA' AND VTWEG = 'Y1' AND
*                      DATBI >= SY-DATUM AND
                  LOEVM_KO = ''.
ENDIF.
IF IT_996[] IS INITIAL.
    SELECT A~KNUMH A~MATNR A~KSCHL A~DATBI A~DATAB KBETR AS KHETR KMEIN KPEIN C~MTART APPENDING CORRESPONDING FIELDS OF
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         FROM A996 AS A
           INNER JOIN KONP AS B
               ON A~KNUMH = B~KNUMH
           INNER JOIN MARA AS C
              ON A~MATNR = C~MATNR
*          FOR ALL ENTRIES IN IT_996
                WHERE
*      A~KNUMH = IT_996-KNUMH AND
      A~KSCHL = 'ZPRB' AND
*                       DATBI >= SY-DATUM AND
      LOEVM_KO = ''.
ENDIF.
SELECT   MATNR     "u7269u6599u53F7u7801
           MEINH     "u4ED3u50A8u5355u4F4Du7684u5907u7528u8BA1u91CFu5355u4F4D
           UMREZ     "u57FAu672Cu8BA1u91CFu5355u4F4Du8F6Cu6362u5206u5B50
           UMREN     "u8F6Cu6362u4E3Au57FAu672Cu8BA1u91CFu5355u4F4Du7684u5206u6BCD
      FROM MARM
      INTO CORRESPONDING FIELDS OF TABLE IT_MARM
       FOR ALL ENTRIES IN TP_DATA
     WHERE MATNR = TP_DATA-MATNR AND MEINH = TP_DATA-KMEIN.
LOOP AT TP_DATA.
    IF TP_DATA-KPEIN NE 0.
      TP_DATA-KBETR = TP_DATA-KBETR / TP_DATA-KPEIN.
      TP_DATA-KHETR = TP_DATA-KHETR / TP_DATA-KPEIN.
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    IF TP_DATA-KSCHL = 'ZPRA'.
*       TP_DATA-MEINH = 'ZI'.
*      TP_DATA-KSCHL = 'B4'.
      IF TP_DATA-KMEIN = 'ZI'.
        TP_DATA-KBETR = TP_DATA-KHETR / '1.17'.
      ELSE.
        READ TABLE IT_MARM INTO WA_MARM1 WITH KEY MATNR = TP_DATA-MATNR MEINH = TP_DATA-KMEIN.
*           READ TABLE IT_MARM INTO WA_MARM2 WITH KEY MATNR = TP_DATA-MATNR MEINH = 'CT'.
        TP_DATA-KHETR = TP_DATA-KHETR * WA_MARM1-UMREN / WA_MARM1-UMREZ.
*           * WA_MARM2-UMREZ / WA_MARM2-UMREN.
        TP_DATA-KBETR = TP_DATA-KHETR / '1.17'.
      ENDIF.
    ELSEIF TP_DATA-KSCHL = 'ZPRB'.
*      TP_DATA-KSCHL = 'L0'.
*       TP_DATA-MEINH = 'ZI'.
      IF TP_DATA-KMEIN = 'ZI'.
        TP_DATA-KBETR = TP_DATA-KHETR / '1.17'.
      ELSE.
        READ TABLE IT_MARM INTO WA_MARM1 WITH KEY MATNR = TP_DATA-MATNR MEINH = TP_DATA-KMEIN.
*           READ TABLE IT_MARM INTO WA_MARM2 WITH KEY MATNR = TP_DATA-MATNR MEINH = 'BAG'.
        TP_DATA-KHETR = TP_DATA-KHETR * WA_MARM1-UMREN / WA_MARM1-UMREZ.
*           * WA_MARM2-UMREZ / WA_MARM2-UMREN.
        TP_DATA-KBETR = TP_DATA-KHETR / '1.17'.
      ENDIF.
    ELSEIF TP_DATA-KSCHL = 'ZPRC' OR TP_DATA-KSCHL = 'ZPRD'.
*       TP_DATA-MEINH = 'ZI'.
      IF TP_DATA-KMEIN = 'ZI'.
        TP_DATA-KHETR = TP_DATA-KBETR * '1.17'.
      ELSE.
        READ TABLE IT_MARM INTO WA_MARM1 WITH KEY MATNR = TP_DATA-MATNR MEINH = TP_DATA-KMEIN.
*           READ TABLE IT_MARM INTO WA_MARM2 WITH KEY MATNR = TP_DATA-MATNR MEINH = 'WZI'.
        TP_DATA-KBETR = TP_DATA-KBETR * WA_MARM1-UMREN / WA_MARM1-UMREZ.
*           * WA_MARM2-UMREZ / WA_MARM2-UMREN.
        TP_DATA-KHETR = TP_DATA-KBETR * '1.17'.
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    ELSEIF TP_DATA-KSCHL = 'ZPR3'.
*      TP_DATA-KSCHL = 'B2'.
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        TP_DATA-KBETR = TP_DATA-KHETR / '1.17'.
      ELSE.
        READ TABLE IT_MARM INTO WA_MARM1 WITH KEY MATNR = TP_DATA-MATNR MEINH = TP_DATA-KMEIN.
*           READ TABLE IT_MARM INTO WA_MARM2 WITH KEY MATNR = TP_DATA-MATNR MEINH = 'BAG'.
        TP_DATA-KHETR = TP_DATA-KHETR * WA_MARM1-UMREN / WA_MARM1-UMREZ.
*           * WA_MARM2-UMREZ / WA_MARM2-UMREN.
        TP_DATA-KBETR = TP_DATA-KHETR / '1.17'.
      ENDIF.
    ENDIF.
    TP_DATA-MEINH = '01'.
    MODIFY TP_DATA.
E_T_DATA-MATNR =   TP_DATA-MATNR.
E_T_DATA-KSCHL =   TP_DATA-KSCHL.
E_T_DATA-KHETR =   TP_DATA-KHETR.
E_T_DATA-KBETR =   TP_DATA-KBETR.
E_T_DATA-KMEIN =   TP_DATA-KMEIN.
E_T_DATA-DATAB =   TP_DATA-DATAB.
E_T_DATA-DATBI =   TP_DATA-DATBI.
APPEND E_T_DATA.
    CLEAR WA_MARM1.
    CLEAR WA_MARM2.
ENDLOOP.
Edited by: Shen Peng on Oct 20, 2010 10:09 AM

Move data from multiple Tables to a Single Table & Convert the list to ALV.

Hi,
My aim is to get the list of Materials with their descriptions, with MRP Controller, with Unrestriced Qty. & the Reorder Qty. So, I have to fetch the data from different tables. But finally I am not able to copy or move the fetched data from multiple tables into the single final table.
Also tell me how to convert this list into ALV.
Below is the program code.
*& Report Y_REORDER_REPORT
REPORT Y_REORDER_REPORT.
tables : marc,makt, mard.
DATA: Begin of i_final occurs 0,
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        DISPO type marc-DISPO,
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DATA: Begin of i_marc occurs 0,
       matnr type marc-matnr,
       DISPO type marc-DISPO,
       MINBE type marc-MINBE,
      end of i_marc.
DATA: Begin of i_makt occurs 0,
       matnr type makt-matnr,
       maktx type makt-maktx,
      end of i_makt.
DATA: Begin of i_mard occurs 0,
       matnr type mard-matnr,
       LABST type mard-LABST,
       LGORT TYPE MARD-LGORT,
      end of i_mard.
SELECT matnr
        dispo
        minbe from marc
        into corresponding fields of table i_marc
        where dispo EQ 'STR'.
SORT I_MARC by MATNR.
WRITE: /10 'Material',
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        80 'Reorder Qty.'.
LOOP at i_marc.
Write: /10 i_marc-matnr,
        75 i_marc-dispo,
        80 i_marc-minbe.
ENDLOOP.
write: /.
SELECT matnr
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        into corresponding fields of table i_makt
        for all entries in i_marc
        where matnr = i_marc-matnr.
LOOP at i_makt.
Write: /10 i_makt-matnr,
        30 i_makt-maktx.
ENDLOOP.
SELECT matnr
        LGORT
        LABST from mard
        into corresponding fields of table i_mard
        for all entries in i_marc
        where matnr = i_marc-matnr.
LOOP at i_mard.
Write: /10 i_mard-matnr,
        30 I_MARD-LGORT,
        40 i_mard-labst.
ENDLOOP.
move i_mard-matnr to i_final-matnr.
move i_marc-dispo to i_final-dispo.
move i_marc-minbe to i_final-minbe.
move i_makt-maktx to i_final-maktx.
move i_mard-labst to i_final-labst.
WRITE: /10 'Material',
        30 'Material Desc.',
        75 'MRP',
        80 'Reorder Qty.',
        105 'Current Stock'.
LOOP at i_final.
Write: /10 i_final-matnr,
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        75 i_final-dispo,
        80 i_final-minbe,
        105 i_final-labst.
ENDLOOP.
*LOOP at i_mard.
*Write: /10 i_mard-matnr,
       30 i_makt-maktx,
       75 i_marc-dispo,
       80 i_marc-minbe,
       105 i_mard-labst.
*ENDLOOP.
Regards,
Vishal

Change like this,
SELECT matnr
lgort
labst FROM mard
INTO CORRESPONDING FIELDS OF TABLE i_mard
FOR ALL ENTRIES IN i_marc
WHERE matnr = i_marc-matnr.
LOOP AT i_mard.
   WRITE: /10 i_mard-matnr,
   30 i_mard-lgort,
   40 i_mard-labst.
ENDLOOP.
LOOP AT i_marc.
   READ TABLE i_mard WITH KEY matnr = i_marc-matnr.
   READ TABLE i_makt WITH KEY matnr = i_marc-matnr.
   MOVE i_mard-matnr TO i_final-matnr.
   MOVE i_marc-dispo TO i_final-dispo.
   MOVE i_marc-minbe TO i_final-minbe.
   MOVE i_makt-maktx TO i_final-maktx.
   MOVE i_mard-labst TO i_final-labst.
   APPEND i_final.
ENDLOOP.
WRITE: /10 'Material',
30 'Material Desc.',
75 'MRP',
80 'Reorder Qty.',
105 'Current Stock'.

It's possible to make Hierarchical Tree from multiple tables ?

the famous example for Hierarchical Tree is about employee_id and manager_id field in employees table ............ so I was wondering it's possible to make[b] Hierarchical Tree from multiple tables ? and How ??
if the answer associate with example that will be so kind of you :D
and thanks in advance.

HI
use curose in when new form instance or procedure then u can got data more then one table like that
DECLARE
htree ITEM;
top_node FTREE.NODE;
new_node FTREE.NODE ;
child_node ftree.node ;
item_value VARCHAR2(30);
cursor prime_cur is select main_desc mgr_name, main_code dept
from pur_item_group_mst;
cursor child_cur(v_dept number) is select sub_desc,sub_code
from pur_item_group_dtl where main_code = v_dept ;
BEGIN
htree := Find_Item('tmp.tree4');
for dummy in prime_cur loop
new_node := Ftree.Add_Tree_Node(htree,
ftree.root_node,
Ftree.PARENT_OFFSET,
Ftree.LAST_CHILD,
Ftree.EXPANDED_NODE,
dummy.mgr_name,
'D:\ORYX_POLYBAGS\accept',
dummy.dept);
for child in child_cur(dummy.dept) loop
child_node := Ftree.Add_Tree_Node(htree,
new_node,
Ftree.PARENT_OFFSET,
Ftree.LAST_CHILD,
Ftree.EXPANDED_NODE,
child.sub_desc||' '||'('||child.sub_code||' '||')',
'D:\ORYX_POLYBAGS\next',
child.sub_code);
end loop;
end loop;
END;
Rizwan Shafiq
www.rizwanshafiq.blogspot.com

Delete records from multiple table

Hi,
I need to delete records from multiple tables using a single delete statement. Is it possible ? If so please let me know the procedure.
Kindly Help.
Thanks,
Alexander.

Hi Tim,
Syntax of DELETE statement does not allow for multiple tables to be specified in this way. Infact, none of the DMLs allow you to specify table names like this.
Technically, there are other ways of deleting from multiple tables with one statement.
1. "Use a trigger":
What was probably meant by this is that you have a driving-table on which you create a on-delete trigger. In this trigger, you write the logic for deleting from other tables that you want to delete from.
This does mean a one-time effort of writing the trigger. But the actual DML operation of deleting from all the tables would be simply triggered by a delete on driving-table.
2. Dynamic SQL:
Write a PL/SQL code to open a cursor with table-names from which you want the data to be deleted from. In the cursor-for loop, write a dynamic SQL using the table-name to delete from that table.
3. Using Foreign-Key constraint with Cascade-Delete:
This I feel is a more 'cleaner' way of doing this.
Having to delete data from multiple tables means that there is some kind of parent-child relationship between your tables. These relationships can be implemented in database using foreign-key constraints. While creating foreign-key constraint give the 'on delete cascade' clause to ensure that whenever data is deleted from parent-table, its dependent data is deleted from child-table.
Using foreign-key constraint you can create a heirarchy of parent-child relationships and still your DELETE would be simple as you would only have to delete from parent-table.
IMPORTANT: Implementing foreign-key constraints would also impact other DML operations that you should keep in mind.

Dbms_xmlgen.newcontext query from multiple tables and ||

I have two questions
How do I get a dbms_xmlgen.context to query from multiple tables? I have been able to make it work with using one table only, but not with multiple tables.
And how to get the || (concat) to work within my query for my output to an xml file?
Here is my current query:
create or replace function get_xml return clob is
result clob;
qryctx dbms_xmlgen.ctxHandle;
SELECT DBMS_XMLGEN.getxml('select prefix, suffix, fiscal_yr
FROM rcv.recv_accessions ra
where ra.prefix = 8 and ra.fiscal_yr = 11')xml into result FROM dual;
result := DBMS_XMLGEN.getXML(qryCtx);
This is what I desire:
SELECT DBMS_XMLGEN.getxml('select ra.prefix||'-'|| ra.suffix||'-'|| ra.fiscal_yr accession, ss.date_in, st.test
FROM rcv.recv_accessions ra, ser.sero_samples ss, ser.sero_tests st
where ra.prefix = 8 and ra.fiscal_yr = 11 and ss.raid = ra.id and st.ssid = ss.id')xml into result FROM dual;
On this both the reference to multiple tables and the concat function cause errors.
Thank you
Edited by: user583094 on Mar 2, 2011 3:36 PM

Hi,
for the concat do I use xmlconcat?No, XMLConcat is used to concatenate XMLType fragments.
The || operator will do fine, but you must escape any single quote inside the string :
SELECT DBMS_XMLGEN.getxml(
'SELECT ra.prefix ||''-''|| ra.suffix ||''-''|| ra.fiscal_yr as accession,
        ss.date_in,
        st.test
FROM rcv.recv_accessions ra,
      ser.sero_samples ss,
      ser.sero_tests st
WHERE ra.prefix = 8
AND ra.fiscal_yr = 11
AND ss.raid = ra.id
AND st.ssid = ss.id'
INTO result
FROM dual;Or, use the quoting operator to define a custom string delimiter :
SELECT DBMS_XMLGEN.getxml(
q'{SELECT ra.prefix ||'-'|| ra.suffix ||'-'|| ra.fiscal_yr as accession,
        ss.date_in,
        st.test
FROM rcv.recv_accessions ra,
      ser.sero_samples ss,
      ser.sero_tests st
WHERE ra.prefix = 8
AND ra.fiscal_yr = 11
AND ss.raid = ra.id
AND st.ssid = ss.id
INTO result
FROM dual;BTW, a good practice would be to use bind variables for the query. DBMS_XMLGEN can handle them nicely :
CREATE OR REPLACE FUNCTION get_xml
RETURN CLOB
IS
qryctx   DBMS_XMLGEN.ctxHandle;
v_out    CLOB;
qrystr   VARCHAR2(4000) :=
'SELECT ra.prefix ||''-''|| ra.suffix ||''-''|| ra.fiscal_yr as accession,
        ss.date_in,
        st.test
FROM rcv.recv_accessions ra,
      ser.sero_samples ss,
      ser.sero_tests st
WHERE ra.prefix = :b_prefix
AND ra.fiscal_yr = :b_fiscal_yr
AND ss.raid = ra.id
AND st.ssid = ss.id';
BEGIN
qryctx := DBMS_XMLGEN.newContext(qrystr);
DBMS_XMLGEN.setBindValue(qryctx, 'b_prefix', '8');
DBMS_XMLGEN.setBindValue(qryctx, 'b_fiscal_yr', '11');
-- to generate empty elements if necessary :
DBMS_XMLGEN.setNullHandling(qryctx, DBMS_XMLGEN.EMPTY_TAG);
v_out := DBMS_XMLGEN.getXML(qryctx);
DBMS_XMLGEN.closeContext(qryctx);
RETURN v_out;
END;

Loading Data from multiple tables into essbase using ODI

Hi,
We have a scenario where data comes from multiple tables. I would like to know how will ODI load this data for the right combination of the members

Hi,
I take it each data table has a field which maps to the other table. You can just drag the datastores on to the source interface and create a join between the tables.
Cheers
John
http://john-goodwin.blogspot.com/

Does ODI has ability to extract data from multiple tables

We have requirement using ODI to extract data from multiple tables depending on certain logic and spool 100+ files.
How efficient ODI is in data extraction from several multiple tables especially when the extraction is dependent on certain business logic conditions ? Also, if anyone used Peoplesoft Application Engine process to extract volumes of data, how efficient Peoplesoft Applicaiton Engine process is as compared to ODI ? I will really appreciate if someone throws some light on this ? Thanks in advance.
Ram

One more option
Create two Integration Interfaces and launch them sequentially:
1st Interface : select a IKM ... Append and activate the Distinct rows check box.
2nd Interface : select an IKM ... Incremental Update and set the UPDATE option to No.
Be aware that the update key in this Integration Interface should be composed of all the target columns mapped. Also activate the Distinct rows check box.
Thanks,
Sutirtha
Edited by: Sutirtha Roy on Jul 21, 2009 10:08 AM

VBA needs to pull from multiple tables, how to code for best efficiency?

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