Update of non-database fields mapped to database fields

I have two columns start month and start year which
are non-database columns and which map to one database
field start date in the database.
I have a post-query trigger on the start month and
start year fields to derive the value from the
database field start date when the form is queried.
When I try to update the form, the update does not
work - if I remove the post-query trigger then the
update works but, the month and year non-database
fields do not get queried.
Any help will be greatly appreciated.
Thanks,
Suzanne

since those 2 fields are not connected to the database field you need to code the update to the database.
Use the pre-insert trigger and set the value of the date item according to the values of the 2 fields.

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Please reply me fast

Hi,
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Exception: non-read-only mapping defined for the primary key field

Hello.
I'm new to Oracle and I created Java EE Web Project.
And I created entities from tableA, tableB, tableC from my database.
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Descriptor: RelationalDescriptor(mypack.tableC --> [DatabaseTable(tableC)])
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Please help me.
Edited by: 900471 on 2011. 12. 3 오전 5:32
Edited by: 900471 on 2011. 12. 3 오전 5:33
Edited by: 900471 on 2011. 12. 3 오전 5:33
Edited by: 900471 on 2011. 12. 3 오전 5:34

There are not enough details to be sure since you have not provided the mappings. From just the error, it looks like you are using the tableC.tableA_ID field as the foreign key in the ManyToOne relationship to A, but have marked it as insertable=false, writeable=false, meaning that it cannot be updated or used for inserts.
Either make it writable (set the settings to true), or add another basic mapping/attribute in the entity for TableC that maps to the field which you can use to set when you insert a new tableC entity. A simple example is available at
http://wiki.eclipse.org/EclipseLink/Examples/JPA/2.0/DerivedIdentifiers
Best Regards,
Chris

Can't run non-UNICODE-DbSl against UNICODE database

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Windows 2008 R2 64 bit
Microsoft SQL 2008 R2 64 bit SP1
Central installation type with all components on
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Kernel level 600
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Downloaded the media as described in the installation
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      4 ETW000 TRACE-INFO: 20: [    dev trc,00000] GetDbRelease: 10.50.2769.00                                                      1603 0.041336
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PS:
The admin user that I use do have access to the database. It is listed with
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ERROR: Detected the following errors:
# F:\usr\SUM\abap\log\R710VPE.<DB>:
      4 ETW000 TRACE-INFO: 19: [    dev trc,00000] Driver: sqlncli10.dll Driver release: 10.50.2769                                3938 0.039733
      4 ETW000 TRACE-INFO: 20: [    dev trc,00000] GetDbRelease: 10.50.2769.00                                                      1603 0.041336
      4 ETW000 TRACE-INFO: 21: [    dev trc,00000] GetDbRelease: Got DB release numbers (10,50,2769,0)                                21 0.041357
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Extracting Values of a Field from a Database Table in SAP ECC System

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I downloaded Extracting Values of a Field from a Database Table in SAP ECC System Using MII 12.0
senario from sdn. I'm trying to do that senario in MII 12.05. But I have problem with section 6 in page 7 (you can supply senario from sdn)
"6- Under the loop of Repeater, use action u2018Rowu2019 to append just the string part of the WA which will display only values for field u2018Batchu2019"
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Thanks.

Cemil,
Set up a SAP JCo Interface action block. Use the RFC name RFC_READ_TABLE.
In the link editor map the table to "MARA", set RowCount to something small (20 is good sample size) and create an xml transaction property named FIELDS and copy the following into it:
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      <item>
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        <FIELDNAME>BSTME</FIELDNAME>
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        <OFFSET/>
        <LENGTH/>
        <TYPE/>
        <FIELDTEXT/>
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Then link the Transaction.FIELDS to SAP_JCo_Interface_0.Request{/RFC_READ_TABLE/TABLES/FIELDS}. You may run into problems with two other fields and optionally they can be removed (set link type to remove xml). I usually remove them initially for testing. The two fields are:
SAP_JCo_Interface_0.Request{/RFC_READ_TABLE/INPUT/NO_DATA}
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Once you get this one working, we can explore how to do filtering on the dataset. Your output should be something like this:
<?xml version="1.0" encoding="utf-8"?>
<RFC_READ_TABLE>
<INPUT>
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</INPUT>
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        <WA>000000000000000059HIBE 00000000</WA>
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        <FIELDTEXT>Purchase Order Unit of Measure</FIELDTEXT>
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SAP_JCo_Interface_0.Response{/RFC_READ_TABLE/TABLES/DATA/item}
Link your repeater output to a tracer with this:
Repeater_0.Output{/item/WA}
What you will see in each tracer message is a single line of data with all the fields contents concatenated together. You can look up what each field in the string represents by the length of the field as returned in the Response segment of the RFC_READ_TABLE rfc. Then you can parse out the data you are interested in.
Give this a try and let me know how you succeeded.
By the way, I could not find the scenario you referred to. Can you post a link?
Regards,
Mike
Edited by: Michael Appleby on Jan 12, 2009 5:16 PM

To replace values of one of the field in the database table

How to replace values of one of the field in the database table with a new values? Pls help to solve

Hi
You can use the UPDATE command to update one of the field value in a table
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hi
i want to to modify a field in a database table based record identification by primary key filed and two more fields
ie customer (primary key
i want to modify record from intenal table the record existing with primary key field customer
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wa_inv-date = wa_Record-date
...so one
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arora

Hi there.
Your requirement is to update a Z Database table from your internal table, right? You have several options:
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ENDLOOP.
or
LOOP AT it_invest INTO wa_inv.
UPDATE dbtable FROM wa_inv. "if wa_inv of same type of dbtable
ENDLOOP.
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Regards.
Valter Oliveira.

Data retrieval in non-scientific notation from Netezza database

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hai
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hi,
I am working on a database in which the data in the tables is generated from some other modules. I have to add, view and update functionalities to this table in the database. Unfortunately there is no primary key field for the table i am working on and as some existing modules are using this table i am not allowed to change the design of the table at this stage.
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PostgreSQL example
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column_one varchar(80),
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INSERT INTO no_id_column(column_one, column_two) VALUES (�red�, �pink�);
INSERT INTO no_id_column(column_one, column_two) VALUES (�yellow�, �orange�);Certainly, if we executed:
SELECT * FROM no_id_column;Would obtain:
column_one          column_two
red               pink
yellow               orangeBut if we modify the query
SELECT oid, * FROM no_id_column;We magically obtain a row identificator
oid          column_one          column_two
21569          red               pink
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Update of non-database fields mapped to database fields

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