JDBC Adapter Newbie question

Hi,
I'm learning about XI and have a question regarding the JDBC adapter.
Is it possible to generate interfaces and data types in the design view from the jdbc adapter under XI or do the interfaces have to be designed manually?
Kind regards,
Heiko

hi,
they have to be degined manually in XI
have a look at this page:
http://help.sap.com/saphelp_nw04/helpdata/en/22/b4d13b633f7748b4d34f3191529946/content.htm
and check how interfaces for sender and receiver adapter have to look like
Regards,
michal
Message was edited by: Michal Krawczyk

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I have several questions about XI data integrity for file/jdbc adapter.
Question 1 is: if the destinate file or DB is not reachable or other technical problems occur, do I have to send the message again or not?
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Hi
Question 1 is: if the destinate file or DB is not reachable or other technical problems occur, do I have to send the message again or not?
If the DB is not reachable then message will be found in the inbound side. you can found them in the adapter. Goto RWB -> Message monitoring -> select status System error and search . there you will find your messages. select you message and resend them
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XI never does updation automatically, Update is done only based on the SQL update query which you have written in the sender channel.
SELECT statement is used just to pick the values from the table and based upon the query which you want to UPDATE in SQL . data is updated
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sandeep

JDBC adapter questions

Hello all,
I have been playing around with the JDBC adapter on my XI sandbox to figure it out. I read through a few guides and I almost have a good handle on it, but there is still a big question lingering. I have configured an example scenario in which I would like to pull data out of the USR01 table from the XI database and transform some user data and place it back in the same table. I was able to get my connections correct and have the communication channel successfully execute SQL statements to alter the data. For example, my Query SQL Statement in the sender communication channel is as follows:
SELECT * FROM USR01 WHERE BNAME='ZTEST2'
And the Update SQL Statement in the sender communication channel is:
UPDATE USR01 SET BNAME='ZTEST' WHERE BNAME='ZTEST2'
This works fine and when I go to transaction se16 and pull up that table I see that the username gets modified when the interface is activated. However, I haven't really figured out exactly how to configure the communication channel / data types so that I can run a SQL statement that will populate my data type that I created for mapping. In other words, lets say I created a data type that looks as follows:
mt_sender
 row
 MANDT
 BNAME
 STCOD
And I want to populate that data type with data from the USR01 table (in the corresponding fields), what would my SQL statement look like in the sender communication channel? I read a few weblogs on how to do scenarios like this, so I built my receiving Data Type to look like this:
mt_receiver
 STATEMENT
 ROW
 action
 TABLE
 access
 MANDT
 BNAME
 STCOD
But I still don't understand how exactly XI correlates the data types / mapping and transformations to the SQL statements....
I'm having a hard time putting this into words, but basically I'm asking a rather high level question I think. How does XI relate the data types to the data it pulls from the SQL statements? How do I actually get the SQL statement to populate my data types so I can do mapping and then repopulate the database table again? Does this make sense?

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Questions about sender JDBC adapter

Normally we use sender jdbc adapter in this way:
query statement:
SELECT * FROM table WHERE processed = 0
update statement:
UPDATE table SET processed = 1 WHERE processed = 0;
The update statement will be executed after the message has been successfully sent to XI.
My questions is that what will happen in this scenario:
A new record (processed=0) is added to the database table when a message is sent to XI with query statement but not finished?
After the message is sent to XI successfully, XI will execute the update statement. Then the new added reocrd will also be updated to 1 although it hasn't been sent to XI.
Does XI have some control or special check for this issue?
Regards
Hui

Hi,
this can be handled by the ISOLATION LEVEL FOR TRANSACTION setting of the sender Jdbc adapter.
make the transaction handling to SERIALIZABLE or REPEATABLE READ and then until the data is not read from the JDBC adapter and it is not updated by the UPDATE statement , no new rows will be allowed to be inserted into the database. The database will be write locked.
http://help.sap.com/saphelp_nw04/helpdata/en/7e/5df96381ec72468a00815dd80f8b63/content.htm
Isolation Level for Transaction
There are different levels of database transactions known as isolation levels. The isolation level determines how transactions running in parallel influence each other. The options correspond to the JDBC constants:
 Default (default setting of the respective database)
 None
 read_uncommitted (weakest setting)
 read_committed
 repeatable_read
 serializable (strongest setting)
Regards,
Bhavesh

JDBC sender adapter == advanced questions

Hi Expert,
basically I want to query a database VIEW to pull data, can you please answer my questions:
1) Can I specify variable in the select statement like select * from myView where createTime<today and flag="true"? today is a variable for today's date. Or some other variable we can define in PI?
2) Since generally view is not updatable, so what I should enter in the update statement? Let's say the view is based on three tables, one table named TableA has the field flag. So I guess I can update the flag directly in the TableA. However how can I make sure the the records created between the select and the update are not marked as false? I know if select and update is made to the same table, PI would make sure the update will be done on the sames records resulted from the select. However in my case, select is done on view while update is done on table. How can I be sure the flag is changes only for he processed records?
3) In my scenario, I need to initially load 100mb data from JDBC adapter, would it be problem with this hug amount of data in the JDCB CC?
Thanks

Hi Jayson,
1) Can I specify variable in the select statement like select * from myView where createTime<today and flag="true"? today is a variable for today's date. Or some other variable we can define in PI?
A) Yes, it works but it should be createTime<TODAY().
2) Since generally view is not updatable, so what I should enter in the update statement? Let's say the view is based on three tables, one table named TableA has the field flag. So I guess I can update the flag directly in the TableA. However how can I make sure the the records created between the select and the update are not marked as false? I know if select and update is made to the same table, PI would make sure the update will be done on the sames records resulted from the select. However in my case, select is done on view while update is done on table. How can I be sure the flag is changes only for he processed records?
A) UPDATE TableA set flag="flase" where createTime<TODAY().
This shd work.
3) In my scenario, I need to initially load 100mb data from JDBC adapter, would it be problem with this hug amount of data in the JDCB CC?
NO, 100mb is not a big deal for PI.
Regards,
Karna...

QUESTION abt "SQL_DML" of the Receiver JDBC Adapter

HI ALL,
i hav a doubt abt "SQL_DML" of the Receiver JDBC Adapter.
i wanna use two SQL Statements in the "SQL_DML" structure to manipulate two tables.
i.e.
<root>
<stmt>
 <Customers action="SQL_DML">
 <access>
 INSERT INTO Customers VALUES (u2019$NAME$u2019, u2019$ADDRESS$', '$KEYFIELD$u2019);
 INSERT INTO Companys VALUES('$NAME$')
 </access>
 <key>
 <NAME>Company</NAME>
 <ADDRESS>Street 3 </ADDRESS>
 <KEYFIELD>CO</KEYFIELD>
 </key>
 </Customers>
</stmt>
</root>
BUT i cant ascertain if it permit like this writting above ??
Requset help in this regards.
Thx in advance.
brian

Hi,
You need to have two different statements. Each for one insert query. Your query will come under access tag and palceholders under kay tag. Action will remain same as you have given, but under both statements.
Ex:
<root>
<stmt1>
<Customers action="SQL_DML">
<access>
INSERT INTO Customers VALUES (u2019$NAME$u2019, u2019$ADDRESS$', '$KEYFIELD$u2019);
</access>
<key>
<NAME>Company</NAME>
<ADDRESS>Street 3 </ADDRESS>
<KEYFIELD>CO</KEYFIELD>
</key>
</Customers>
</stmt1>
<stmt2>
<Customers action="SQL_DML">
<access>
INSERT INTO Companys VALUES('$NAME$')
</access>
<key>
<NAME>Company</NAME>
</key>
</Customers>
</stmt2>
</root>
Hope this helps.
Regards,
Siddhesh S.Tawate
Edited by: siddhesh tawate on Apr 24, 2009 8:10 AM

About 2 questions for jdbc adapter.

1.
    which transaction isolation level should i set for jdbc sender adapter to guarantee data to be selected correctly?
    not error occurs.
2.
    how to reslove time_out error for jdbc adapter. especially sync query in volume data case.

Hi,
If you want to maintain the sequence and data consistency, then use isolation level "serializable" and QoS as EOIO.
Set / Increase the time_out parameter in the adapter module.
Regards,
Neetesh

The Question Set about JDBC Adapter

Hello Experts,
I have some confusion about the JDBC Adapter as below, pls help me :
1. While the JDBC Sender Channel is executing the select statement then I interrupt it, if the ResultSet ought to have 5000
    records, so I stop the Channel that it just can select 3000 records.
    I wanna know if the 3000 records will go ahead to the Receiver Channel ?
2.If there are 7000 records ought to insert DB via JDBC Receiver Channel, but I interrupt the Receiver Channel when it is
   running, now there are 4000 records have be insert DB (I know it doesnt commit, because I dont choose the option of
   u201CAuto-Commit-Enabledu201D in the Communication Channel), then what will occur ??
   a rollback? or commit? or other circs?
3.By the way, the sender channel have sent some Msgs but the receiver channel is stopped now, I dont wanna the
   Receiver Channel getting the Msgs when start the Receiver channel, how can I get the goal?
THX for ur time and effort,
Brian

Hi Brain,
3.By the way, the sender channel have sent some Msgs but the receiver channel is stopped now, I dont wanna the
Receiver Channel getting the Msgs when start the Receiver channel, how can I get the goal?
In order to achieve this go to RWB --> Message Monitoring --> Search your Messages and Cancel all the Messages before you START the Reciever Channel.
Once the messages are canceled.....you can START the Reciver Channel it will not receive them.
Cheers
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Reg: How to Stop Polling of JDBC Adapter without Scheduling the adapter

Dear Gurus,
Here I am having one requirement. My clients wants to send data from JDBC adapter (ORcale System table) to R3 system via RFC.
His Requirement::
1. He is not telling the time of data flow from Oracle server so that based on that we can schedule the adapter in the Communication Channel monitoring (Availablitiy Time Planning) or Else we can Schedule by deciding the setting of the polling interval time.
2. He is telling that When ever he waants to send the data he will place one dummy file in the File Adapter FTP location so that it will became an Indication for u to poll the jdbc adapter and to transfer the data to R3.
3. Untill he keeps the file or gives indication he doesn;t want to communicate with Oracle server due to some security and it s a most important data base he doesn't want to disturb that Oracle Server as so many business are running on that.....
We Proposed::
1. Atleast you need to tell the scheduling time or poll interval time so that we can schedule our adapter.
but he s not accepting for this
2. Atleast U need to give access for Data base to enter one more extra field like STATUS CODE so that we will add one number and we keep on Update in the Update table and based on that Update table statement it will poll.
but he s not even accepting for this
3. Finally we prposed that to create another table in the Oracle SYstem as Dulplicate Table which is similar to Standard Orginal table when ever he wants to pick the data please keep that data in this Duplicate TABle so that JDBC adapter will pick the data from thsi TABLE instead of picking the data from that standard table so that it will not effect any standard table data in the table.
but he s not even accepting for this
We have done some R & D:::
1. WE approached even through BPM and via switch conditions is one scenario
 FILE RECEIVE >SWITCH CONDITION> RECEIVE AND SEND or else EXIT
2. Using correlation in anotehr scenario means correlating File adapter and JDBC and based on one dynamica value it will goes to SEND STEP ( RECE IVE --> RECEIVE --> SEND STEPS )
Even though we know this...concept that...we jsut tried::
In BPM we can control the flow in XI 3.0 but we cannot Stop the Polling of JDBC adapter at backend because one the data comes from FILE adapter it will keep on HOLD untill it receives the JDBC from Oracle then based on the condition or Correlation it will goes futher SEND step means after that file adapter is picking file or not ...what ever it may be JDBC will polls at backend and brings that data to BPM"
Hence sugest me How to Stop Polling of JDBC Adapter without Scheduling the adapter or else using STATUS CODE Update statements in JDBC Tables
Regards:
Amar Srinivas Eli

Hi! All,
Finally I decided to do the scenario in two steps:
1: FILE REQ --> JDBC REQ -->JDBC RES --> FILE RECV
2: FILE RECV --> RFC
But I am getting issue while doing first scenario
Desgn :
I have created 2 Synchronous interfaces :
1) FILE 2 JDBC REQ
In this a) out put message is FILE Req
 b) Input msage:; FILE RES
2} JDBC2FILE RECV
 a) Output mesage;; JDBC REQ
 b) Input Msge :: JDBC Response
Mappings:
1) File REQ-->JDBC REQ
2) JDBC RES-->FILE RES
Interface mappings:
1: FILE 2 JDBC REQ--> JDBC 2 FLE RECV
CONFIGURATION ::
1: One Seder File CC
2: Two reciever CC's one is for JDBC RECEIVER and other s FILE RECEIVER
3; One Sender Agreement
4: 2 Recver agreements
5: One Interface Determination and
6: One RECCV Determination
My Question;;
1. First let confirm whether my development steps are right or not ?
2: Another thing s I am not sure reg Configuration Steps means
whetehr one interface determination and one Receiver Determinations are required or not as these are synchronous Interfaces
3: main Issue is::::
If my scenario s FILE2RFC2FILE then I will get RFC response automatically but here issue is this is JDBC
My reqquirement is By sending one Field from fILE to JDBC REQ it needs to send entire TAbLE records as a Response to file as XML
without having Sender JDBC how can I send the JDBC Res to FILE and If that is the case then again JDBC adapter is polling which is contradict to the client requuirement which i explained above.
pleas suggest me the Detailed steps mainly Colloboration agreements and logical routings and
also explain in detail if i can go for BPM
Also give cleear blogs but before giving make sure that it contains detailed screen shots because aIready gone thorugh
Scenario File-JDBC-RFC
File<-->JDBC Sync coomunication.
https://www.sdn.sap.com/irj/scn/wiki?path=/display/xi/file-rfc-file(Without+BPM)
/people/luis.melgar/blog/2008/05/13/synchronous-soap-to-jdbc--end-to-end-walkthrough
Regards::
Amar Srinivas Eli

Sender JDBC Adapter issue.

Hi folks,
I would like to know how can I configure a sender JDBC channel without specify a poll interval? I know that I can specify this poll interval with a period of time that I want; it could be in seconds and even in mseconds. But, this can cause a lot of access to the Data Base SQL Server and consequently can cause network slowness.
I would like to know if there is any data base event that can trigger my jdbc sender adapter or any other workaround that can prevent many accesses to one Data Base.
Any ideas are appreciated.
Thanks in advance,
Ricardo.

Hi,
with XI SP19 you can schedule your jdbc adapter easily:
(in standard)
/people/shabarish.vijayakumar/blog/2006/11/26/adapter-scheduling--hail-sp-19-
Regards,
michal
<a href="/people/michal.krawczyk2/blog/2005/06/28/xipi-faq-frequently-asked-questions">XI / PI FAQ - Frequently Asked Questions</a>

Calling Stored Procedure without JDBC-Adapter

Hallo,
as it is not possible calling Stored Procedures with the parameter Typ Record in Oracle my question: It is possible connecting to DB using native java-code for example in Mapping?
Thanks in advance,
Frank

Hi Frank,
Maybe you can use the DB look up using the JDBC adapter in your mapping.
Just check this blog for the same,
/people/siva.maranani/blog/2005/08/23/lookup146s-in-xi-made-simpler
As for calling an Oracle Strored Procedure, it is possible using a RECEIVER JDBC adapter, but not a SENDER JDBC adapter.
 import the jdbc-driver (oracle) in an archive in Designer.
Also, this imported archive should be under any Namespace, but, it should be in the same SWCV as the one in which the mapping is being executed.
Regards,
Bhavesh

Xi JDBC Adapter - Query SQL Statement & Update SQL Statement

Hi!
I configure the JDBC adapter sender (XI) to take data from Oracle database.
I set the Query and Update SQL Statement in the Processing parameters of the communication channel in this way:
Query SQL Statement :
SELECT * FROM XI_TABLE WHERE STATUS = 'WAIT' ORDER BY ROW_NUM
Update SQL Statement :
UPDATE XI_TABLE SET STATUS = 'DONE', DATE = SYSDATE WHERE STATUS = 'WAIT'
My question is :
If a new record with the field STATUS = 'WAIT' is added to the table (xi_table) during the time between the execution of the query statement and the start of the update statement, what will happen to that record during the update?
There is a way to avoid the update of that record? or to pass to the update statement only the record selected in the query statement?
Please, may you give me some example?
Thanks,
Francesco

hi,
did you check "Isolation Level for Transaction"
for the sender jdbc adapter?
http://help.sap.com/saphelp_nw04/helpdata/en/7e/5df96381ec72468a00815dd80f8b63/content.htm
Regards,
michal

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