Extract data from Oracle Database and store it into a CSV file format

Hello.
I'm trying to export a table from an Oracle Database into CSV file format with any Oracle adaptor and store it into a HDFS system.
How could I do it?
Thanks in advance!

Xavi wrote:
HI Charles. Could I use.. Oracle Data Integrator Application Adapter for Hadoop? For this purpose?
Thanks in advancePerhaps. I have to confess that I am not familiar enough with ODI to know if that is within its capabilities.
You might see if there is a forum for ODI and post your question to that.
Charles Lamb

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http://help.sap.com/saphelp_nw04/helpdata/en/78/ef1441a509064abee6ffd6f38278fd/content.htm
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Hi,
I am also trying to use ERPI adapter to directly extract data from Oracle GL. I am not finding sufficient information on this. It would be great if anyone can help me in this.
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Hi,
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Retrieving data from oracle database and displaying using servlets

//DataRetrieving.class file
import java.io.*;
import java.sql.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class DataRetrieving extends HttpServlet{
public void doGet(HttpServletRequest request, HttpServletResponse response)throws
ServletException, IOException{
response.setContentType("text/html");
PrintWriter out = response.getWriter();
out.println("A program for connecting oracle database");
try
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Connection con = DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:ORCL", "scott","tiger");
Statement stmt = con.createStatement();
ResultSet r = stmt.executeQuery ("SELECT ename,job,sal,comm,deptno FROM emp");
while ( r.next() )
     String bar = r.getString("ename");
     String bar1 = r.getString("job");
     float bar2 = r.getInt("sal");
     float bar3 = r.getInt("comm");
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     //out.println(r.getString(0)+" "+r.getString("ename"));
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//web.xml file
<?xml version="1.0" encoding="ISO-8859-1"?>

<web-app>
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<servlet-name>Hello</servlet-name>
<servlet-class>DataRetrieving</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>Hello</servlet-name>
<url-pattern>/DataRetrieval</url-pattern>
</servlet-mapping>
</web-app>
while running the servlet , i am unable to retrieve the data
The error message i am getting is
A program for connecting oracle database
ERROR : java.lang.ClassNotFoundException: oracle.jdbc.driver.OracleDriver
after running the servlet.
what could be the problem?

import java.io.*;
import java.sql.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class myserv extends HttpServlet
public void doGet(HttpServletRequest req,HttpServletResponse res)throws ServletException,IOException
res.setContentType("text/html");
PrintWriter pw=res.getwriter();
pw.println("Connecting data base");
     try
     Class.forName("oracle.jdbc.driver.OracleDriver");
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     }catch(Exception e)
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How to extract image from oracle database and display at html page

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Thanks for ur reply Mr.Rajasekhar
I tried as u said,
i tried without converting to sql date ,but still i din't get any results
java.text.SimpleDateFormat dateFormat=new java.text.SimpleDateFormat("dd/MM/yyyy");
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//From main method
databaseConnection("prasu","1/12/2005","31/12/2005");I got the output as
---------- java ----------
select MTName,Date,MTLineCount from linecountdetails where mtname='prasu' and Date >='Thu Dec 01 00:00:00 GMT+05:30 2005' and Date <='Sat Dec 31 00:00:00 GMT+05:30 2005'
java.lang.NullPointerException
null
null
java.lang.NullPointerException
Output completed (4 sec consumed) - Normal TerminationThanks
Prasanna.B

Extracting date from oracle/other databases exactly to java

Hello Friends,
Iam creating a simple program which extracts data from any database and stores it in an XML file and also it can extract data from an XML file and updates the database.
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I want my program to work with any database engine, which may have their own date formats. Kindly can anyone suggest me a way to extract date from any database exactly as it is to java.
NOTE:: I can't use to_char(datefield) type commands in SQLQUERY as the only input to my program is tablename and my query is, select * from tablename.
Regards,
Ch.Praveen.

HI Friends,
Thanks for your fast replies. My program is extracting data from a database and generating an XML file for it, which is as follows.
<?xml version="1.0" encoding="UTF-8"?>
<table tableName="EMP">
<row>
<column columnName="EMPNO" columnType="NUMBER">7369</column>
<column columnName="ENAME" columnType="VARCHAR2">'SMITH'</column>
<column columnName="JOB" columnType="VARCHAR2">'CLERK'</column>
<column columnName="MGR" columnType="NUMBER">7902</column>
<column columnName="HIREDATE" columnType="DATE">'1980-12-17'</column>
<column columnName="SAL" columnType="NUMBER">800</column>
<column columnName="COMM" columnType="NUMBER" />
<column columnName="DEPTNO" columnType="NUMBER">20</column>
</row>
<row>
<column columnName="EMPNO" columnType="NUMBER">7499</column>
<column columnName="ENAME" columnType="VARCHAR2">'ALLEN'</column>
<column columnName="JOB" columnType="VARCHAR2">'SALESMAN'</column>
<column columnName="MGR" columnType="NUMBER">7698</column>
<column columnName="HIREDATE" columnType="DATE">'1981-02-20'</column>
<column columnName="SAL" columnType="NUMBER">1600</column>
<column columnName="COMM" columnType="NUMBER">300</column>
<column columnName="DEPTNO" columnType="NUMBER">30</column>
</row>
</table>
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Extract data from Oracle in excel file

Hi,
I have a requirement where in I need to extract data from Oracle in excel file and the excel worksheet name should be "Data".
for eg. excel file name "AR Data_DDMMYY" and excel worksheet name "Data"
I have used the UTL_FILE API to extract the tab delimited data which can be opened in excel but it is not exactly an excel file as the worksheet name is same as the file name.
I tried using utl_file.fcopy and frename.
Is there any way to do this using PLSQL?
select * from v$version;
Oracle Database 10g Enterprise Edition Release 10.2.0.5.0 - 64bi
PL/SQL Release 10.2.0.5.0 - Production
"CORE 10.2.0.5.0 Production"
TNS for HPUX: Version 10.2.0.5.0 - Production
NLSRTL Version 10.2.0.5.0 - ProductionSample Code:
declare
cursor c is
select * from scott.emp;
v varchar2(100);
f utl_file.file_type;
file_name varchar2(100) := 'AR Data.xls';
dir varchar2(50) := 'CESDIR191710';
--select * from dba_directories
begin
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utl_file.put_line(f, v);
end loop;
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Imran

Imran Soudagar wrote:
Hi,
I was able to generate the excel 2007 file with the data using the package from below link;
http://technology.amis.nl/2011/02/19/create-an-excel-file-with-plsql/
but the requirement is to generate excel 2003 file.
I tried changing the .xlsx to .xls and it gives a note while opening the file "The file you are trying to open, abc.xls, is in a different format than specified by the file extension. Verify that the file is not corrupted and is from a trusted source before opening the file. Do you want to open the file now?"Then you have three options:
1) stop using anton's package and find another one that supports the old and deprecated version of Excel 2003
2) write your own package to produce an Excel file.
3) Upgrade your version of Excel to a recent version
I tried the programs from other links on the forum but I am still getting this message. The client does not want this message to be displayed as the excel file works as an input to another system.
Can anyone help me with the issue?
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If you want to write your own, the easiest thing to do is to start with a blank workbook in Excel, and put in your basic requirements e.g. a couple of named sheets, and some data in different formats (number, date, text etc.) and different formatting options etc. Save that file in XML format from Excel and then open up the file using notepad/wordpad to look at the structure. There'll be a whole load of redundant rubbish Microsoft put in there, but you should be able to figure out the basic structure of XML required to give you what you want.

Retriving data from oracle database

hi all,
i have connected to oracle database and i want retrieve data from that database.can u please give the procedure how to retrieve data and how to load it into info cube

Hi,
You can use either DB connect or UD connect for extracting data from external database.
DB Connect:
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/2f0fea94-0501-0010-829c-d6b5c2ae5e40
UD Connect:
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regards,
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hi,
I am trying to Extract Data from Oracle DB using DBconnect. and looks like its not working. Not able to connect to Database.
thanks

Hi,
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DB password: Your pwd
Conn. Info: sql*net string
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It can be help full.
Regards,

How to I convert data from oracle database into excel sheet

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Thanks.

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hi,
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http://help.sap.com/saphelp_nw04/helpdata/en/a1/89786c3df35c4ea930a994e884bb4c/content.htm
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To fetch data from Oracle Database

Hi Gents,
Any alternative option other than SQL to fetch data from Oracle DAtabase. ( My manager worked on Mainframes he is telling other than SQL there should be some options.. Gents pls guide if any options.......
REgards
Fento

>
Any alternative option other than SQL to fetch data from Oracle DAtabase. ( My manager worked on Mainframes he is telling other than SQL there should be some options.. Gents pls guide if any options.......
>
There is no other (supported) way to get data from Oracle Databases as SQL. No matter what third-party tool you use to access Oracle Databases, they all will use (embedded) SQL.
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In short: No :-)
Kind regards
Uwe
http://uhesse.wordpress.com

Want to see on screen data from oracle database using php

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Extract data from Oracle Database and store it into a CSV file format

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