Querying and displaying data from a database

Hi,
The environment I am working in has the EBIZR12 suite installed on the apps server APP1, the EBIZR12 database deployed to server DB1 listening on port 1522 and a MIDTIER database deployed to server DB1 listening on port 1521. I have a custom page that needs to query the data off of MIDTIER and populate a display table. The page I have created emulates that of the Search tutorial. I have an application module that contains a BC4J object and views and these are connecting to the MIDTIER to retrieve data. It has a table that should display queries returned from the MIDTIER database. My question is, are there any limitations with OA framework development and deployment that would NOT make this feasible? if not is there anything else I would need to do either as a pre-requisite or as part of my page construction to make this work, because currently my page table is not being populated and I am not getting any exceptions on the page to indicate the database is either unreachable or the connection configurations are incorrect. Any help is very much appreciated.
regards,

Yes, in case of query region, an executequery was getting called on clicking go button. But now as you just have a table mapped to a VO, you also need to call the executequery explicitly in the page controller's processRequest method.
Your point "I would like to point out that the instructions in those tutorials are not compatible with the newest version of JDEV" is completely wrong. First of all each Jdev has its own set of tutorials reflecting all the changes in that particular version. Secondly, as you are trying to use a particular scenario steps to create something different, you can't expect it to handle all the side off scenarios you can make. Drag and drop UI won't get you more than a few basic screens. Read more and you will understand the working of framework.
--Shiv

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This article is intended to illustrate one of the most common business scenarios such as displaying data from Oracle database on a form in a Windows application using DataSet objects and .NET Framework Data Provider for Oracle.
You can read more at http://www.c-sharpcorner.com/UploadFile/john_charles/WalkthroughDisplayingDataOracleWindowsapplication05242007142059PM/WalkthroughDisplayingDataOracleWindowsapplication.aspx
Enjoy my article.

hi,
this is the code :
public class TableBean {
Connection con ;
Statement ps;
ResultSet rs;
private List perInfoAll = new ArrayList();
public List getperInfoAll() {
int i = 0;
try
con = DriverManager.getConnection("url","root","root");
ps = con.createStatement();
rs = ps.executeQuery("select * from user");
while(rs.next()){
System.out.println(rs.getString(1));
perInfoAll.add(i,new perInfo(rs.getString(1),rs.getString(2),rs.getString(3)));
i++;
catch (Exception e)
System.out.println("Error Data : " + e.getMessage());
return perInfoAll;
public class perInfo {
String uname;
String firstName;
String lastName;
public perInfo(String firstName,String lastName,String uname) {
this.uname = uname;
this.firstName = firstName;
this.lastName = lastName;
public String getUname() {
return uname;
public String getFirstName() {
return firstName;
public String getLastName() {
return lastName;
ADF table code:
<af:table value="#{tableBean.perInfoAll}" var="row"
binding="#{backing_Display.table1}" id="table1">
<af:column sortable="false" headerText=""
align="start">
<af:outputText value="#{row.firstName"/>//---> Jdeveloper 11g doesn't allow me to use this.. it says firstName is an unknown property..
</af:column>
</af:table>
Please tell me is this the way to do it.. or is it a must to use the DataCollection from the data controls panel...
Thanks...

Single query to get data from different databases

i need to capture certain fields from certain tables in database 1 and certain fields from certain tables in database 2 into one file using a single SQL statement.
i tried searching on the net
i found that dblinks can help
but iam not sure if ill be able to create dblinks in my situation which is:
i need to get data from oracle to be copied to mysql
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thanks

Hi,
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HTH
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Displaying data from a Database control

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Hi Jothivenkatesh M,
Place the cursor in forst field and press CNT+y now select the entair row by using your mouce and press CNT+C and paste the data in what ever position.
Plzz rewad if it is useful,
Mahi.

How to display data from a database to a JComboBox JTextField

Hello
I was wondering I have a database called "PAYTYPE" and have a colums called
EMPLOYEETYPE     PAYBASIC     PAYSUNDAY     PAYHOLIDAY     PAYPERIOD
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How to acquire and display data from labview to excel simultaneously

hello,
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Hello Evangelos,
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Also, a couple of observations on your code:
A constant wired to a case selector of a case structure makes no sense as the false case will never be executed.
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Daniel REDS
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Saving to and collecting data from a database

I am working on a small project where 3 forms need to interact with each other. Form 1 should be completed then the information saved to a database then form 2 called and because of common fields between the 2 forms...data should be populated from the database to form 2 (data that was entered from form1).
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This is typically implemented as a LiveCycle orchestration:
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www.avoka.com

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categoryArray.add(cc);
rs.close();
stmt.close();
con.close();
catch (Exception e) {
//catch exception }
return categoryArray;
CourseCategory File has the necessary accessor methods, and a toString method to display out the category name.
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public DisplayCoursesGUI() {
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courseDB.getCategory();
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Hi,
If you read my first post, I wanted to achieve this effect.
----CategoryName1
----------SubCategoryItem1
----CategoryName2
----------SubCategoryItem2
My Table Structure.
CATEGORY TABLE
ID (autonumber), Name(string)
COURSES TABLE
ID(autonumber),Name(string), CategoryID(int)(A Relationship is link to Category Table-ID)
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Now my array prints out as follows
e.g.
[CategoryName1,CategoryName2]
And if i put a for look into my application to display a JTREE,
My end results is
------[CategoryName1, CategoryName2]
------[CategoryName1, CategoryName2]
How should I ammend my codes to get:
-------CategoryName1
-------CategoryName2

Read and display data from PC COM1 & COM2

Hello, I am looking for help in order to use LabView to do the following:
I want to read from RS232 dataloguer output information and write
this in a text file format and then another LabView rutine should read
de information from the file and present the data in a graph. This
basically what my Meteorology interface is doing at the moment but I
want to use LabView for this purpose.
I've been doing some tests but unfortunatelly I haven't gone very far.
Many thanks, regards. Jose Carlos
Hola, buzco ayuda para hacer una peque~na aplicaci'on con LabView:
Necesito leer la salida del puerto RS232 de un dataloguer usando el
puerto de comunicaci'on del ordenador COM1 y escribir estos datos en
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deberia leer la informaci'on desde el citado fichero de texto y luego
presentar estos datos en una grafica.
He estado trabajando en este tema desde hace tiempo pero sin mucho
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Hi,
I send two links where you can see how to communicate with your instrument using RS-232 port and other example where the data are saved into a file after being acquired.
http://sine.ni.com/apps/we/niepd_web_display.display_epd4?p_guid=C3279BDB00F42BEBE034080020E74861&p_node=DZ52363&p_source=External
http://venus.ni.com/stage/we/niepd_web_display.DISPLAY_EPD4?p_answer=&p_guid=B45EACE3E8BB56A4E034080020E74861&p_node=DZ52058&p_rank=&p_source=Internal&p_submitted=N
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Diego M.

Help with writing and retrieving data from a table field with type "LCHR"

Hi Experts,
I need help with writing and reading data from a database table field which has a type of "LCHR". I have given an example of the original code but don't know what to change it to in order to fix it and still read in the original data that's stored in the LCHR field.
Basically we have two Function modules, one that saves list data to a database table and one that reads in this data. Both Function modules have an identicle table which has an array of fields from type INT4, CHAR, and type P. The INT4 field is the first one.
Incidentally this worked in the 4.7 non-unicode system but is now dumping in the new ECC6 Unicode system.
Thanks in advance,
C
SAVING THE LIST DATA TO DB
DATA: L_WA(800).
LOOP AT T_TAB into L_WA.
ZDBTAB-DATALEN = STRLEN( L_WA ).
MOVE: L_WA to ZDBTAB-RAWDATA.
ZDBTAB-LINENUM = SY-TABIX.
INSERT ZDBTAB.
READING THE DATA FROM DB
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Select the data.
SELECT linenum rawdata from ZDBTAB into table T_DATA
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     ORDER BY linenum.
Populate calling Internal Table.
LOOP AT T-DATA.
APPEND T_DATA to T_TAB.
ENDLOOP.

Hi Anuj,
The unicode flag is active.
When I run our report and then to try and save the list data a dump is happening at the following point
LOOP AT T_TAB into L_WA.
As I say, T_TAB consists of different fields and field types whereas L_WA is CHAR 800. The dump mentions UC_OBJECTS_NOT_CONVERTIBLE
When I try to load a saved list the dump is happening at the following point
APPEND T_DATA-RAWDATA to T_TAB.
T_DATA-RAWDATA is type LCHR and T_TAB consists of different fields and field types.
In both examples the dumps mention UC_OBJECTS_NOT_CONVERTIBLE
Regards
C

How to I convert data from oracle database into excel sheet

how to I convert data from oracle database into excel sheet.
I need to import columns and there datas from oracle database to microsoft excel sheet.
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Thanks.

asktom.oracle.com has an excellent article on writing a PL/SQL procedure that dumps data to an Excel spreadsheet-- search for 'Excel' and it'll come up.
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Arabic data from Sybase database fails to display correctly in Crystal Reports XI

Post Author: shajad
CA Forum: Crystal Reports
In Crystal Reports XI, reports created with a ODBC (SQL server) connection to a Sybase data source fails to show Arabic data correctly. Arabic data is stored in Sybase under character set Windows-1256, but fails to display as Arabic in Crystal Reports 10. Some junk values like 'ÕæÑÉÇáÓÌá ÇáÊÌÇÑí ÓÇÑíÉÇáãÝÚæá' appears in the report.
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Hi Raju
Please let us know the following information:
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- The type and the version of the database.
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Hope this helps!
Thanks

Inserting and retrieving data from a al32UTF8 database USING SQL Developer

hi guys,
Before i post my questions , i think its better for me to provide you guys with my understandings first so that it easier to understand where/if i have gone wrong..
I am using Window XP and Oracle 10g
Non-unicode client - a client program that need to use the OS code page for mapping of the retrieved unicode data from the database as well as the support of displaying/inserting the characters from that code page to the database.
E.G sqlplusw.exe
Therefore, when using a non-unicode client
1) we have to set the OS code page (Control panel - regional and language setting - advance - language for non unicode program ) to the code page that contain the characters we are going to display/insert.
2) we will also have to set the NLS_LANG characterset to the character set of the code page we are going to insert so that when we do a insert (for e.g in thai ) , oracle will know, and auto conversion to UNICODE can take place. This is also true when we retrieve unicode data from the database so that conversion to the correct character set can take place.
INSERTING
THAI ---> conversion ----> UNICODE
RETRIEVING
THAI <---- conversion <---- UNICODE
I hope my basic understanding is correct up till this point.
Unicode client - a client program that supports the displaying/inserting of unicode characters without the need of setting the OS code page (Control panel - regional and language setting - advance - language for non unicode program )
E.G isqlplus http or SQL developer
However,
1) There is still a need to set the NLS_LANG so that correct conversion can take place between the client and the database.
For e.g, when retrieving if we set the NLS_LANG character set to ZHS16GBK (chinese) and the data store in unicode in database is E.G (THAI) , then the conversion would be wrong .
Since it is a unicode supported client, then the NLS_LANG character set should be set to UNICODE as well.
Here come my questions
*Important - please help if you are busy and have no other time to answer the rest of the questions
*Q1) If i were to use a unicode client, what should i set my NLS_LANG character set to ?
AMERICAN_AMERICA.UTF8 ?
*Q2) Where do i set the NLS_LANG character set information in SQL Developer, i know there is a metalink for setting NLS_LANG using isqlplus but i cant seems to google any result for SQL developer.
Q3) Is my basic understanding right until this point ? If not, please explain in a more generalised term as i am really not familiar with character sets, code page, unicode , glyphs and fonts..
Q4) If a unicode client does not need to refer to the OS code page (set in regional and language) , is there a UNICODE code page for the client to refer to , or is there any Window API available ?
Q5)
There is still a need to set the NLS_LANG so that correct conversion can take place between the client and the >>database.
For e.g, when retrieving if we set the NLS_LANG character set to ZHS16GBK (chinese) and the data store in >>unicode in database is E.G (THAI) , then the conversion would be wrong .am i right on this point for UNICODE supported client ?
Thanks for spending time to read my questions and i hope to hear advices from you guys soon.
Million thanks again for sharing.
Best Regards,
Noob but willing to learn

The requirement to always set NLS_LANG is not true for JDBC, which ignores NLS_LANG altogether. Java programs fetch text data into String variables, which use Unicode UTF-16 by design. JDBC sets character set conversion so that data is converted between UTF-16 and the database or national character set.
The requirement to set NLS_LANG is not generally true for OCI, either. The first call in an OCI problem can be OCIEnvNlsCreate(). This call has two parameters that allow the caller to define the character set to use for VARCHAR2/CHAR/LONG/CLOB/statement text and the character set to use for NVARCHAR2/NCHAR/NCLOB. Only if these character sets are specified as 0, NLS_LANG character set is used. Also, OCI programs can specify different character sets for each bind or define variable (i.e. input/output buffer). Note: OCI programs always use NLS_LANG to initialize the language and territory settings for the client program and the database session. Only the character set can be specified is OCIEnvNlsCreate().
OCIEnvNlsCreate() can specify the client character set as UTF-16 (in platform endianess). This is not possible with NLS_LANG.
Various interfaces building on OCI, such as Oracle ODBC and ODP .NET, explicitly initialize OCI with Unicode character set, and thus ignore the NLS_LANG character set as well.
Thnx,
Sergiusz

Querying and displaying data from a database

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