How to fetch rows from multiple tables
I have a page with items from 3 tables. I need to populate these items with values from the database. The page does not allow me to use multiple automated fetches. So instead I decided to use a pl/sql page process that runs a cursor to get my field values and the uses apex_util.set_session_state to set the field item values. IS there any isues with doing this? Is there a better way?
These tables are not really related so I gues I will stick with the pl/sql to populate and then page process to insert/update/delete. Here is the code I'm using.
Chris
DECLARE
CURSOR get_info IS
select A.FK_STU_BASE, A.FK_CONTACT, A.FK_RELATION, A.PRIORITY, A.CAN_PICK_UP_STUDENT,
A.GETS_STX, A.GETS_STG, A.GETS_STA, A.GETS_DIS, A.GETS_THX, A.GETS_MED,
A.GETS_MAIL, A.NOTES as STUDENT_NOTES, A.USER_FLD1, A.USER_FLD2, A.USER_FLD3,
A.USER_FLD4, A.USER_FLD5, A.LAST_UPDATE_DATE, A.LAST_UPDATE_USER,
B.PK_ID as CONTACT_PK_ID, B.FIRST_NAME, B.LAST_NAME, B.MIDDLE_INIT, B.PREFIX,
B.SUFFIX, B.FK_LANGUAGE, B.PHONE, B.PHONE_UNLISTED, B.PHONE_EXTENSION,
B.PHONE_DESCRIPTION, B.EMERGENCY_PHONE, B.EMERGENCY_UNLISTED, B.EMERGENCY_EXTENSION,
B.EMERGENCY_DESCRIPTION, B.CELL_PHONE, B.CELL_UNLISTED, B.CELL_EXTENSION,
B.CELL_DESCRIPTION, B.CELL2_PHONE, B.CELL2_UNLISTED, B.CELL2_EXTENSION,
B.CELL2_DESCRIPTION, B.WORK1_PHONE, B.WORK1_UNLISTED, B.WORK1_EXTENSION,
B.WORK1_DESCRIPTION, B.WORK2_PHONE, B.WORK2_UNLISTED, B.WORK2_EXTENSION,
B.WORK2_DESCRIPTION, B.FAX_PHONE, B.FAX_DESCRIPTION, B.EMAIL1, B.EMAIL2,
B.NOTES as CONTACT_NOTES, B.FK_LODGING, B.FK_EDUCATION_LEVEL,
C.PK_ID as LODGING_PK_ID, C.FK_ZIP, C.FK_DISTRICT, C.HOUSE_NO, C.LETTER,
C.DIRECTION, C.STREET, C.STREET2, C.PLUS4, C.APT, C.FK_GRIDCODE,
C.FK_MUNICIPALITY, C.OPTIONAL_INFO1, C.OPTIONAL_INFO2, C.OPTIONAL_INFO3,
C.FK_DWELLING, C.OPTIONAL_ZIPCODE
from contact_link A,
contact B,
lodging C
where A.PK_ID = :P470_CONTACT_LINK_PK_ID and
B.PK_ID (+) = A.FK_CONTACT and
C.PK_ID (+) = B.FK_LODGING;
BEGIN
FOR x in get_info LOOP
-- Set Contact Link Items
APEX_UTIL.SET_SESSION_STATE('P470_FK_STU_BASE',X.FK_STU_BASE);
APEX_UTIL.SET_SESSION_STATE('P470_FK_CONTACT',X.FK_CONTACT);
APEX_UTIL.SET_SESSION_STATE('P470_FK_RELATION',X.FK_RELATION);
APEX_UTIL.SET_SESSION_STATE('P470_PRIORITY',X.PRIORITY);
APEX_UTIL.SET_SESSION_STATE('P470_CAN_PICK_UP_STUDENT',X.CAN_PICK_UP_STUDENT);
APEX_UTIL.SET_SESSION_STATE('P470_GETS_STX',X.GETS_STX);
APEX_UTIL.SET_SESSION_STATE('P470_GETS_STG',X.GETS_STG);
APEX_UTIL.SET_SESSION_STATE('P470_GETS_STA',X.GETS_STA);
APEX_UTIL.SET_SESSION_STATE('P470_GETS_DIS',X.GETS_DIS);
APEX_UTIL.SET_SESSION_STATE('P470_GETS_THX',X.GETS_THX);
APEX_UTIL.SET_SESSION_STATE('P470_GETS_MED',X.GETS_MED);
APEX_UTIL.SET_SESSION_STATE('P470_GETS_MAIL',X.GETS_MAIL);
APEX_UTIL.SET_SESSION_STATE('P470_STUDENT_NOTES',X.STUDENT_NOTES);
APEX_UTIL.SET_SESSION_STATE('P470_USER_FLD1',X.USER_FLD1);
APEX_UTIL.SET_SESSION_STATE('P470_USER_FLD2',X.USER_FLD2);
APEX_UTIL.SET_SESSION_STATE('P470_USER_FLD3',X.USER_FLD3);
APEX_UTIL.SET_SESSION_STATE('P470_USER_FLD4',X.USER_FLD4);
APEX_UTIL.SET_SESSION_STATE('P470_USER_FLD5',X.USER_FLD5);
APEX_UTIL.SET_SESSION_STATE('P470_LAST_UPDATE_DATE',X.LAST_UPDATE_DATE);
APEX_UTIL.SET_SESSION_STATE('P470_LAST_UPDATE_USER',X.LAST_UPDATE_USER);
--Set Contact Items
APEX_UTIL.SET_SESSION_STATE('P470_CONTACT_PK_ID',X.CONTACT_PK_iD);
APEX_UTIL.SET_SESSION_STATE('P470_FIRST_NAME',X.FIRST_NAME);
APEX_UTIL.SET_SESSION_STATE('P470_LAST_NAME',X.LAST_NAME);
APEX_UTIL.SET_SESSION_STATE('P470_MIDDLE_INIT',X.MIDDLE_INIT);
APEX_UTIL.SET_SESSION_STATE('P470_PREFIX',X.PREFIX);
APEX_UTIL.SET_SESSION_STATE('P470_SUFFIX',X.SUFFIX);
APEX_UTIL.SET_SESSION_STATE('P470_FK_LANGUAGE',X.FK_LANGUAGE);
APEX_UTIL.SET_SESSION_STATE('P470_PHONE',X.PHONE);
APEX_UTIL.SET_SESSION_STATE('P470_PHONE_UNLISTED',X.PHONE_UNLISTED);
APEX_UTIL.SET_SESSION_STATE('P470_PHONE_EXTENSION',X.PHONE_EXTENSION);
APEX_UTIL.SET_SESSION_STATE('P470_PHONE_DESCRIPTION',X.PHONE_DESCRIPTION);
APEX_UTIL.SET_SESSION_STATE('P470_EMERGENCY_PHONE',X.EMERGENCY_PHONE);
APEX_UTIL.SET_SESSION_STATE('P470_EMERGENCY_UNLISTED',X.EMERGENCY_UNLISTED);
APEX_UTIL.SET_SESSION_STATE('P470_EMERGENCY_EXTENSION',X.EMERGENCY_EXTENSION);
APEX_UTIL.SET_SESSION_STATE('P470_EMERGENCY_DESCRIPTION',X.EMERGENCY_DESCRIPTION);
APEX_UTIL.SET_SESSION_STATE('P470_CELL_PHONE',X.CELL_PHONE);
APEX_UTIL.SET_SESSION_STATE('P470_CELL_UNLISTED',X.CELL_UNLISTED);
APEX_UTIL.SET_SESSION_STATE('P470_CELL_EXTENSION',X.CELL_EXTENSION);
APEX_UTIL.SET_SESSION_STATE('P470_CELL_DESCRIPTION',X.CELL_DESCRIPTION);
APEX_UTIL.SET_SESSION_STATE('P470_CELL2_PHONE',X.CELL2_PHONE);
APEX_UTIL.SET_SESSION_STATE('P470_CELL2_UNLISTED',X.CELL2_UNLISTED);
APEX_UTIL.SET_SESSION_STATE('P470_CELL2_EXTENSION',X.CELL2_EXTENSION);
APEX_UTIL.SET_SESSION_STATE('P470_CELL2_DESCRIPTION',X.CELL2_DESCRIPTION);
APEX_UTIL.SET_SESSION_STATE('P470_WORK1_PHONE',X.WORK1_PHONE);
APEX_UTIL.SET_SESSION_STATE('P470_WORK1_UNLISTED',X.WORK1_UNLISTED);
APEX_UTIL.SET_SESSION_STATE('P470_WORK1_EXTENSION',X.WORK1_EXTENSION);
APEX_UTIL.SET_SESSION_STATE('P470_WORK1_DESCRIPTION',X.WORK1_DESCRIPTION);
APEX_UTIL.SET_SESSION_STATE('P470_WORK2_PHONE',X.WORK2_PHONE);
APEX_UTIL.SET_SESSION_STATE('P470_WORK2_UNLISTED',X.WORK2_UNLISTED);
APEX_UTIL.SET_SESSION_STATE('P470_WORK2_EXTENSION',X.WORK2_EXTENSION);
APEX_UTIL.SET_SESSION_STATE('P470_WORK2_DESCRIPTION',X.WORK2_DESCRIPTION);
APEX_UTIL.SET_SESSION_STATE('P470_FAX_PHONE',X.FAX_PHONE);
APEX_UTIL.SET_SESSION_STATE('P470_FAX_DESCRIPTION',X.FAX_DESCRIPTION);
APEX_UTIL.SET_SESSION_STATE('P470_EMAIL1',X.EMAIL1);
APEX_UTIL.SET_SESSION_STATE('P470_EMAIL2',X.EMAIL2);
APEX_UTIL.SET_SESSION_STATE('P470_CONTACT_NOTES',X.CONTACT_NOTES);
APEX_UTIL.SET_SESSION_STATE('P470_FK_LODGING',X.FK_LODGING);
APEX_UTIL.SET_SESSION_STATE('P470_FK_EDUCATION_LEVEL',X.FK_EDUCATION_LEVEL);
--Set Lodging Items
APEX_UTIL.SET_SESSION_STATE('P470_LODGING_PK_ID',X.LODGING_PK_ID);
APEX_UTIL.SET_SESSION_STATE('P470_FK_ZIP',X.FK_ZIP);
APEX_UTIL.SET_SESSION_STATE('P470_FK_DISTRICT',X.FK_DISTRICT);
APEX_UTIL.SET_SESSION_STATE('P470_HOUSE_NO',X.HOUSE_NO);
APEX_UTIL.SET_SESSION_STATE('P470_LETTER',X.LETTER);
APEX_UTIL.SET_SESSION_STATE('P470_DIRECTION',X.DIRECTION);
APEX_UTIL.SET_SESSION_STATE('P470_STREET',X.STREET);
APEX_UTIL.SET_SESSION_STATE('P470_STREET2',X.STREET2);
APEX_UTIL.SET_SESSION_STATE('P470_PLUS4',X.PLUS4);
APEX_UTIL.SET_SESSION_STATE('P470_APT',X.APT);
APEX_UTIL.SET_SESSION_STATE('P470_FK_GRIDCODE',X.FK_GRIDCODE);
APEX_UTIL.SET_SESSION_STATE('P470_FK_MUNICIPALITY',X.FK_MUNICIPALITY);
APEX_UTIL.SET_SESSION_STATE('P470_OPTIONAL_INFO1',X.OPTIONAL_INFO1);
APEX_UTIL.SET_SESSION_STATE('P470_OPTIONAL_INFO2',X.OPTIONAL_INFO2);
APEX_UTIL.SET_SESSION_STATE('P470_OPTIONAL_INFO3',X.OPTIONAL_INFO3);
APEX_UTIL.SET_SESSION_STATE('P470_FK_DWELLING',X.FK_DWELLING);
APEX_UTIL.SET_SESSION_STATE('P470_OPTIONAL_ZIPCODE',X.OPTIONAL_ZIPCODE);
END LOOP;
END;
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Scenarios:
1. Directly map from A, B, C to X. Unable to map with error message: "API8003: Connection target attribute group is already connected to an incompatible data source. Use a Joiner or Set operator to join the upstream data first before connecting it into this operator."
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
PratThanks 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'.
But if I got to extract data from multiple tables, logic to be used should be like as shown below. ( from previous thread------prabhu).
SELECT <Table_2>.EID, <Table_2>.FName, <Table_2>.LName, <Table_1>.REC_DAT, <Table_1>.DESCRP
FROM <Table_1> INNER JOIN <Table_2> on
<Table_1>.CARDNO = <Table_2>.CARD
where REC_DAT = <condition>
union
SELECT <Table_2>.EID, <Table_2>.FName, <Table_2>.LName, <Table_1>.REC_DAT, <Table_1>.DESCRP
FROM <Table_1> INNER JOIN <Table_2> on
<Table_1>.CARDNO = <Table_2>.CARD
where REC_DAT = <condition>
But my query is ........how to put the above entire code in one line. (i.e in Qery place of communication channel ) ??
Thanks
KumarHi 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 -
Hey guys how to fetch data from db table using subroutine
hi guys,
I am fetching data from db table "mcha". now in the follwing code i get it in "HSDAT1_DATE."
now when i read out_tab with key "HSDAT1". it wont come in out_tab-value.plz tell me what is wrong whether some key condition in out_tab or any thing else.
and what should i write in changing && in script.
thanks in advance
FORM DATE_MGF TABLES IN_TAB STRUCTURE ITCSY
OUT_TAB STRUCTURE ITCSY.
tables :MCHA ,QALS.
DATA : WERKS1 LIKE QALS-WERK.
DATA : HSDAT1 LIKE MCHA-HSDAT.
DATA : DATE(2),
MONTH(2),
YEAR(4).
DATA : HSDAT1_DATE(10).
READ TABLE IN_TAB WITH KEY 'QALS-WERK'.
LOOP AT IN_TAB.
IF SY-TABIX EQ 1.
WERKS1 = IN_TAB-VALUE.
IF WERKS1 NE SPACE.
EXIT.
ENDIF.
ENDIF.
ENDLOOP.
SELECT SINGLE HSDAT INTO HSDAT1
FROM MCHA
WHERE WERKS = WERKS1.
DATE = HSDAT1+6(2).
MONTH = HSDAT1+4(2).
YEAR = HSDAT1+0(4).
CONCATENATE DATE '.' MONTH '.' YEAR INTO HSDAT1_DATE.
READ TABLE OUT_TAB WITH KEY 'HSDAT1' .
IF SY-SUBRC = 0.
OUT_TAB-VALUE = HSDAT1.
MODIFY OUT_TAB INDEX SY-TABIX.
ENDIF.Hi,
Let me understanf clearly what you want.
initally mine out_tab is blank
According to you, your table out_tab is blank. And you need to add out_tab-value = HSDAT1_date.
READ TABLE OUT_TAB WITH KEY 'HSDAT1' .
IF SY-SUBRC = 0.
OUT_TAB-VALUE = HSDAT1.
MODIFY OUT_TAB INDEX SY-TABIX.
ENDIF.
So, if your table is blank, then read statement will fail.
Please let me know if your table out_tab in blank when you are reading the table and if this table contains any field called HSDAT.
Basically i would like to know your internal table out_tab declaration.
Thanks,
Archana -
How to fetch data from multiple fact tables from a normalized schema?
Hello everybody,
I am working on a normalized schema to build my repository. I have categorized the tables into dimensions and facts. I have 3 fact tables in my schema and they have a 1:m:1 relationship i.e. if I have table A, B, and C; A has 1:m relationship with B and C also has 1:m relationship with B. How can I use measures from these tables to create a star schema. If A = Sales, B = Transaction, C = Payment_Amount
Sales(Sales ID, Amount, Tax pct, ...)
Transaction(Transaction ID, Sales ID, Payment ID,Transaction Amt, ...)
Payment_Amount(Payment ID, Check ID, Payment Made, ...)
Please give me some direction to pursue.
Thank you!
DHi dcole,
Go through this link for snowflake schema http://gerardnico.com/wiki/datamodeling/snowflake_
http://www.rittmanmead.com/2007/06/19/obiee-data-modeling-tips-1-integrating-1-1-and-1-many-source-tables/
I suppose it should work with snowflake schema...Im interested in this topic please let me know what is your approach every now and then.
By,
KK -
How to return rows from tmp table created inside function??
Hi,
I'm trying to return rows from a cursor or table (created within
the function). How do I specify the return type?Hi,
Here is the code that examples to create a function that can
return data from table.This is achieved using REFCURSOR concept.
Hope this helps you.I'm giving all stuff in single PL/SQL
block.You can break it and create a package and declare
refcursor type and function in that as well.
DECLARE
-- Declare generic cursor type
TYPE gencur_type IS REF CURSOR ;
-- Declare generic cursor varaible
gencur gencur_type;
-- Declare record type
TYPE rec_type IS RECORD(descr emp.ename%type) ;
-- Declare record type variable
rec rec_type;
--This how you declare a local function that returns gencrtype
data set
--This function is called in main block
FUNCTION call_refcur return gencur_type
AS
rr gencur_type;
BEGIN
OPEN rr FOR SELECT descr FROM emp;
RETURN rr;
END;-- end of local function
-- Main block begins here
BEGIN
-- Call the local function so that gencur will have
-- the data set returned by select statement
gencur:= call_refcur;
-- Open a loop to test the stuff
LOOP
FETCH gencur INTO rec;
EXIT WHEN gencur%NOTFOUND;
null;
dbms_output.put_line(rec.ename);
END LOOP;
END;
Regards,
Sridhar -
How to populate rows from another table in new blank rows of other table
I have to convert an oracle form 6i to Jdeveloper application. In forms 6i we use create a cursor for other table and then populate the current table data block row using create record and assigning its values from cursor and then issuing next record until all cursor records are written in data block. After some manual editing we save the whole form and then all block records are saved as new rows in table.
Now how to create this functionality in jdeveloper application.
Kindly help.two steps-
1. get row from first VO.iterate them - like below -
DCBindingContainer bindings = (DCBindingContainer)BindingContext.getCurrent().getCurrentBindingsEntry();
DCIteratorBinding dcIteratorBindings = bindings.findIteratorBinding("ViewObj1Iterator");
HSSFRow excelrow = null;
// Get all the rows of a iterator
oracle.jbo.Row[] rows = dcIteratorBindings.getAllRowsInRange();
int i = 0;
for (oracle.jbo.Row row : rows) {
row.getAttribute(colName).toString()); // by this you can get row attribute value..
2. inside iteration create row for VO 2 for example-
ViewObject employee= findViewObject("EmployeeVO");
// Create a row and fill in the columns.
Row row = employee.createRow();
row.setAttribute("Name", "Vinay");
row.setAttribute("EmpId", 1);
//Insert row in to the default row set
employee.insertRow(row);
Read more: http://www.techartifact.com/blogs/2012/12/creating-new-row-of-view-object-in-adf-techartifact.html#ixzz2iL978UOD
http://www.techartifact.com/blogs/2012/12/creating-new-row-of-view-object-in-adf-techartifact.html
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