How to read\write text file into oracle database.

Hello,
I am having text file called getInfo in c:\temp folder. I would like to populate data from text file to data base. How to proceed. Could anybody help me out.
Thanks,
Shailu

Here is a web page with easy to follow instructions regarding external files: http://www.adp-gmbh.ch/ora/misc/ext_table.html.
Now I understand what all the excitement is over external tables.
"External tables can read flat files (that follow some rules) as though they were ordinary (although read-only) Oracle tables. Therefore, it is convenient to use external tables to load flat files into the DB." -from the above link.

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How to insert a image file into oracle database

hi all
can anyone guide me how to insert a image file into oracle database now
i have created table using
create table imagestore(image blob);
but when inserting i totally lost don't know what to do how to write query to insert image file

Hi I don't have time to explain really, I did have to do this a while ago though so I will post a code snippet. This is using the commons file upload framework.
Firstly you need a multi part form data (if you are using a web page). If you are not using a web page ignore this bit.
out.println("<form name=\"imgFrm\" method=\"post\" enctype=\"multipart/form-data\" action=\"FileUploadServlet?thisPageAction=reloaded\" onSubmit=\"return submitForm();\"><input type=\"FILE\" name=\"imgSource\" size='60' class='smalltext' onKeyPress='return stopUserInput();' onKeyUp='stopUserInput();' onKeyDown='stopUserInput();' onMouseDown='noMouseDown(event);'>");
out.println("   <input type='submit' name='submit' value='Submit' class='smalltext'>");
out.println("</form>"); Import this once you have the jar file:
import org.apache.commons.fileupload.*;Now a method I wrote to upload the file. I am not saying that this is correct, or its the best way to do this. I am just saying it works for me.
private boolean uploadFile(HttpServletRequest request, HttpSession session) throws Exception {
        boolean result = true;
        String fileName = null;
        byte fileData[] = null;
        String fileUploadError = null;
        String imageType = "";
        String error = "";
        DiskFileUpload fb = new DiskFileUpload();
        List fileItems = fb.parseRequest(request);
        Iterator it = fileItems.iterator();
        while(it.hasNext()){
            FileItem fileItem = (FileItem)it.next();
            if (!fileItem.isFormField()) {
                fileName = fileItem.getName();
                fileData = fileItem.get();
                // Get the imageType from the filename extension
                if (fileName != null) {
                    int dotPos = fileName.indexOf('.');
                    if (dotPos >= 0 && dotPos != fileName.length()-1) {
                        imageType = fileName.substring(dotPos+1).toLowerCase();
                        if (imageType.equals("jpg")) {
                            imageType = "jpeg";
        String filePath = request.getParameter("FILE_PATH");
        session.setAttribute("filePath", filePath);
        session.setAttribute("fileData", fileData);
        session.setAttribute("fileName", fileName);
        session.setAttribute("imageType", imageType);
        return result;
     } And now finally the method to actually write the file to the database:
private int writeImageFile(byte[] fileData, String fileName, String imageType, String mode, Integer signatureIDIn, HttpServletRequest request) throws Exception {
        //If the previous code found a file that can be uploaded then
        //save it into the database via a pstmt
        String sql = "";
        UtilDBquery udbq = getUser(request).connectToDatabase();
        Connection con = null;
        int signatureID = 0;
        PreparedStatement pstmt = null;
        try {
            udbq.setUsePreparedStatements(true);
            con = udbq.getPooledConnection();
            con.setAutoCommit(false);
            if((!mode.equals("U")) || (mode.equals("U") && signatureIDIn == 0)) {
                sql = "SELECT SEQ_SIGNATURE_ID.nextval FROM DUAL";
                pstmt = con.prepareStatement(sql);
                ResultSet rs = pstmt.executeQuery();
                while(rs.next()) {
                   signatureID = rs.getInt(1);
                if (fileName != null && imageType != null) {
                    sql = "INSERT INTO T_SIGNATURE (SIGNATURE_ID, SIGNATURE) values (?,?)";
                    InputStream is2 = new ByteArrayInputStream(fileData);
                    pstmt = con.prepareStatement(sql);
                    pstmt.setInt(1, signatureID);
                    pstmt.setBinaryStream(2, is2, (int)(fileData.length));
                    pstmt.executeUpdate();
                    pstmt.close();
                    con.commit();
                    con = null;
            if(mode.equals("U") && signatureIDIn != 0) {
                signatureID = signatureIDIn.intValue();
                if (fileName != null && imageType != null) {
                    sql = "UPDATE T_SIGNATURE SET SIGNATURE = ? WHERE SIGNATURE_ID = ?";
                    InputStream is2 = new ByteArrayInputStream(fileData);
                    pstmt = con.prepareStatement(sql);
                    pstmt.setBinaryStream(1, is2, (int)(fileData.length));
                    pstmt.setInt(2, signatureID);
                    pstmt.executeUpdate();
                    pstmt.close();
                    con.commit();
                    con = null;
        } catch (Exception e) {
            con = null;
            throw new Exception(e.toString());
        return signatureID;
   }

How to load excel-csv file into oracle database

Hi
I wanted to load excel file with csv extension(named as trial.csv) into
oracle database table(named as dept),I have given below my experiment here.
I am getting the following error,how should I rectify this?
For ID column I have defined as number(5) datatype, in my control file I have defined as interger external(5),where as in the Error log file why the datatype for ID column is comming as character?
1)my oracle database table is
SQL> desc dept;
Name Null? Type
ID NUMBER(5)
DNAME CHAR(20)
2)my data file is(trial.csv)
ID     DNAME
11     production
22     purchase
33     inspection
3)my control file is(trial.ctl)
LOAD DATA
INFILE 'trial.csv'
BADFILE 'trial.bad'
DISCARDFILE 'trial.dsc'
APPEND
INTO TABLE dept
FIELDS TERMINATED BY "," OPTIONALLY ENCLOSED BY '"'
TRAILING NULLCOLS
(ID POSITION(1:5) INTEGER EXTERNAL(5)
NULLIF ID=BLANKS,
DNAME POSITION(6:25) CHAR
     NULLIF DNAME=BLANKS
3)my syntax on cmd prompt is
c:\>sqlldr scott/tiger@xxx control=trial.ctl direct=true;
Load completed - logical record count 21.
4)my log file error message is
Column Name Position Len Term Encl Datatype
ID           1:5 5 , O(") CHARACTER
NULL if ID = BLANKS
DNAME 6:25 20 , O(") CHARACTER
NULL if DNAME = BLANKS
Record 1: Rejected - Error on table DEPT, column ID.
ORA-01722: invalid number
Record 21: Rejected - Error on table DEPT, column ID.
ORA-01722: invalid number
Table DEPT:
0 Rows successfully loaded.
21 Rows not loaded due to data errors.
0 Rows not loaded because all WHEN clauses were failed.
0 Rows not loaded because all fields were null.
Bind array size not used in direct path.
Column array rows : 5000
Stream buffer bytes: 256000
Read buffer bytes: 1048576
Total logical records skipped: 0
Total logical records read: 21
Total logical records rejected: 21
Total logical records discarded: 0
Total stream buffers loaded by SQL*Loader main thread: 0
Total stream buffers loaded by SQL*Loader load thread: 0
5)Result
SQL> select * from dept;
no rows selected
by
balamuralikrishnan.s

Hi everyone!
The following are the steps to load a excell sheet to oracle table.i tried to be as simple as possible.
thanks
Step # 1
Prapare a data file (excel sheet) that would be uploaded to oracle table.
"Save As" a excel sheet to ".csv" (comma seperated values) format.
Then save as to " .dat " file.
e.g datafile.bat
1,Category Wise Consumption Summary,Expected Receipts Report
2,Category Wise Receipts Summary,Forecast Detail Report
3,Current Stock List Category Wise,Forecast rule listing
4,Daily Production Report,Freight carrier listing
5,Daily Transactions Report,Inventory Value Report
Step # 2
Prapare a control file that define the data file to be loaded ,columns seperation value,name and type of the table columns to which data is to be loaded.The control file extension should be " .ctl " !
e.g i want to load the data into tasks table ,from the datafile.dat file and having controlfile.ctl control file.
SQL> desc tasks;
Name Null? Type
TASK_ID NOT NULL NUMBER(14)
TASK_NAME VARCHAR2(120)
TASK_CODE VARCHAR2(120)
: controlfile.ctl
LOAD DATA
INFILE 'e:\datafile.dat'
INTO TABLE tasks
FIELDS TERMINATED BY ',' OPTIONALLY ENCLOSED BY '"'
(TASK_ID INTEGER EXTERNAL,
TASK_NAME CHAR,
TASK_CODE CHAR)
The above is the structure for a control file.
Step # 3
the final step is to give the sqlldr command to execute the process.
sqlldr userid=scott/tiger@abc control=e:\controlfile.ctl log=e:\logfile.log
Message was edited by:
user578762

How to read/write .CSV file into CLOB column in a table of Oracle 10g

I have a requirement which is nothing but a table has two column
create table emp_data (empid number, report clob)
Here REPORT column is CLOB data type which used to load the data from the .csv file.
The requirement here is
1) How to load data from .CSV file into CLOB column along with empid using DBMS_lob utility
2) How to read report columns which should return all the columns present in the .CSV file (dynamically because every csv file may have different number of columns) along with the primariy key empid).
eg: empid report_field1 report_field2
1 x y
Any help would be appreciated.

If I understand you right, you want each row in your table to contain an emp_id and the complete text of a multi-record .csv file.
It's not clear how you relate emp_id to the appropriate file to be read. Is the emp_id stored in the csv file?
To read the file, you can use functions from [UTL_FILE|http://download.oracle.com/docs/cd/B19306_01/appdev.102/b14258/u_file.htm#BABGGEDF] (as long as the file is in a directory accessible to the Oracle server):
declare
    lt_report_clob CLOB;
    l_max_line_length integer := 1024;   -- set as high as the longest line in your file
    l_infile UTL_FILE.file_type;
    l_buffer varchar2(1024);
    l_emp_id report_table.emp_id%type := 123; -- not clear where emp_id comes from
    l_filename varchar2(200) := 'my_file_name.csv';   -- get this from somewhere
begin
   -- open the file; we assume an Oracle directory has already been created
    l_infile := utl_file.fopen('CSV_DIRECTORY', l_filename, 'r', l_max_line_length);
    -- initialise the empty clob
    dbms_lob.createtemporary(lt_report_clob, TRUE, DBMS_LOB.session);
    loop
      begin
         utl_file.get_line(l_infile, l_buffer);
         dbms_lob.append(lt_report_clob, l_buffer);
      exception
         when no_data_found then
             exit;
      end;
    end loop;
    insert into report_table (emp_id, report)
    values (l_emp_id, lt_report_clob);
    -- free the temporary lob
    dbms_lob.freetemporary(lt_report_clob);
   -- close the file
   UTL_FILE.fclose(l_infile);
end;This simple line-by-line approach is easy to understand, and gives you an opportunity (if you want) to take each line in the file and transform it (for example, you could transform it into a nested table, or into XML). However it can be rather slow if there are many records in the csv file - the lob_append operation is not particularly efficient. I was able to improve the efficiency by caching the lines in a VARCHAR2 up to a maximum cache size, and only then appending to the LOB - see [three posts on my blog|http://preferisco.blogspot.com/search/label/lob].
There is at least one other possibility:
- you could use [DBMS_LOB.loadclobfromfile|http://download.oracle.com/docs/cd/B19306_01/appdev.102/b14258/d_lob.htm#i998978]. I've not tried this before myself, but I think the procedure is described [here in the 9i docs|http://download.oracle.com/docs/cd/B10501_01/appdev.920/a96591/adl12bfl.htm#879711]. This is likely to be faster than UTL_FILE (because it is all happening in the underlying DBMS_LOB package, possibly in a native way).
That's all for now. I haven't yet answered your question on how to report data back out of the CLOB. I would like to know how you associate employees with files; what happens if there is > 1 file per employee, etc.
HTH
Regards Nigel
Edited by: nthomas on Mar 2, 2009 11:22 AM - don't forget to fclose the file...

How to read a text file into a String?

and also write a text file from a String. I searched the forum and found this folowing code:
// Read and append... by Example
try{
String fileName = "text.txt"; // Filename
// Make the inputfile object
FileInputStream fi = new FileInputStream(fileName);
byte inData[] = new byte[fi.available()];
fi.read(inData); // Read
fi.close(); // Close
String text = new String(inData); // Make a textstring...
// Now, do whatever you want with the data... and append...
String textToAppend = "kjkjhjhKJ";
byte outData[] = textToAppend.getBytes();
// Make the outputfile (whith the 'append' boolean set to true
FileOutputStream fo = new FileOutputStream(fileName,true);
fo.write(outData);
fo.close();
}catch(Exception oops){}but it returns funny characters to the String from the text file and vice versa in writting the text file. Can anybody please help? Thank you.
kindo

See here for info on encodings:
http://java.sun.com/j2se/1.3/docs/guide/intl/encoding.doc.html
Some common US encodings and common uses:
ASCII (DOS)
Cp1252 (Windows 9x)
UTF8 (XML)
import java.io.*;
public class TextFile extends File
private static String DEFAULT_ENCODING = "ASCII";
private File file;
private String encoding;
public TextFile(File file, String encoding)
     super(file.getPath());
     this.file = file;
     this.encoding = encoding;
public TextFile(File file)
     this(file, DEFAULT_ENCODING);
public String load() throws Exception
     FileInputStream fis = new FileInputStream(file);
     byte[] barr = new byte[fis.available()];
     fis.read(barr);
     fis.close();
     return new String(barr, encoding);
public void save(String str) throws Exception
     FileOutputStream fos = new FileOutputStream(file);
     fos.write(str.getBytes(encoding));
     fos.close();
}

How to read/write text file to db2 by using java code

Hai
I created the table to insert a clob data as follows
db2 => create table ctest(datas clob(65536))
DB20000I The SQL command completed successfully.
db2 => describe table ctest
Column Type Type
name schema name Length Scale Nulls
DATAS SYSIBM CLOB 65536 0 Yes
1 record(s) selected.
I tried the following java code to insert a clob data.
public static synchronized Connection getConnection() throws Exception {
Connection m_connectionDatabase = null;
try {
Class.forName("COM.ibm.db2.jdbc.app.DB2Driver");
// Get the connection to the database.
m_connectionDatabase = DriverManager.getConnection(
"jdbc b2 ps","","");
}catch (Exception e) {
throw new Exception("Failed to connect to the database. ", e);
return m_connectionDatabase;
public static void main(String a[]) {
File file = new File("d:\\a.txt");
InputStream fis = new FileInputStream(file);
Connection con = getConnection();
PreparedStatement pstmt = con.prepareStatement("insert into ctest values(?)");
//try 1
pstmt.setAsciiStream(1,fis,(int)file.length());
// try 2
pstmt.setCharacterStream(1,fis,(int)(file.length()));
// try 3
pstmt.setBinaryStream(1,fis,(int)(file.length()));
// try 4
byte[] b = new byte[fis.available()];
fis.read(b);
pstmt.setBytes(1, b);
// try 5
byte[] b = new byte[fis.available()];
fis.read(b);
pstmt.setString(1, new String(b));
pstmt.executeUpdate();
pstmt.close();
fis.close();
Result:
If the file size is less than 32kb, it inserted successfully.
but if more than 32kb, it throws follwing exception
COM.ibm.db2.jdbc.DB2Exception: [IBM][CLI Driver][DB2/NT] SQL0352N An unsupported SQLTYPE was encountered in position "1" of the input list (SQLDA). SQLSTATE=56084
at COM.ibm.db2.jdbc.app.SQLExceptionGenerator.throw_SQLException(Unknown Source)
at COM.ibm.db2.jdbc.app.SQLExceptionGenerator.throw_SQLException(Unknown Source)
at COM.ibm.db2.jdbc.app.SQLExceptionGenerator.check_return_code(Unknown Source)
at COM.ibm.db2.jdbc.app.DB2PreparedStatement.loadParameters(Unknown Source)
at COM.ibm.db2.jdbc.app.DB2PreparedStatement.execute2(Unknown Source)
at COM.ibm.db2.jdbc.app.DB2PreparedStatement.executeUpdate(Unknown Source)
Can any body please help out to insert clob value.
Thanks in advance
V.Shan

Normally I would be happy to help you, but after several years of trying to help here, I've decided not to contribute anymore because of the piss-poor way in which this site is being administered.
Others are still helping, but more may leave if things don't improve. May I recommend devshed or javaranch?
http://www.devshed.com/
http://www.javaranch.com/
If you would like to complain to the admins of this forum, either click the "Report Abuse" link or the "Feedback" link.
-- foofoo (shamelessly stolen the text from jverd).

How to insert an image file in Oracle database

hi
can you please tell me how to insert an image file into oracle database????
suppose there is one image file in c:\pictures\rose.jpg. how to insert that file into database? theoretically i know that will be BFILE type but i dont know how to insert that.
will be waiting for your reply........
thanks & regards,
Priyatosh

Hello,
The easiest way to load a blob is to use SQL loader.
This example comes from the utilities guide:
LOAD DATA
INFILE 'sample.dat'
INTO TABLE person_table
FIELDS TERMINATED BY ','
(name CHAR(20),
1 ext_fname FILLER CHAR(40),
2 "RESUME" LOBFILE(ext_fname) TERMINATED BY EOF)
Datafile (sample.dat)
Johny Quest,jqresume.txt,
Speed Racer,'/private/sracer/srresume.txt',
Secondary Datafile (jqresume.txt)
Johny Quest
500 Oracle Parkway
Secondary Datafile (srresume.txt)
Loading LOBs
10-18 Oracle Database Utilities
Speed Racer
400 Oracle Parkway
regards,
Ivo

How to read several text files at a time

Dear all
Read and write one text file is not a problem, but what confusies me is how to read several text files at one time, in the meanwhile,
is it possible to display the name of the text file?
For example, assuming I want to load file" cha 1, cha 2 , cha 3, " at one time and show their names, how to hadle with it
I have reviewed some files and it is not helpful

Either with a 'for' loop like in the lib you have attached, or like this attached VI
that's it
Message Edited by devchander on 05-30-2006 05:11 AM
Attachments:
MULTIPLE READ.vi ‏44 KB

"how to load a text file to oracle table"

hi to all
can anybody help me "how to load a text file to oracle table", this is first time i am doing, plz give me steps.
Regards
MKhaleel

Usage: SQLLOAD keyword=value [,keyword=value,...]
Valid Keywords:
userid -- ORACLE username/password
control -- Control file name
log -- Log file name
bad -- Bad file name
data -- Data file name
discard -- Discard file name
discardmax -- Number of discards to allow (Default all)
skip -- Number of logical records to skip (Default 0)
load -- Number of logical records to load (Default all)
errors -- Number of errors to allow (Default 50)
rows -- Number of rows in conventional path bind array or between direct path data saves (Default: Conventional path 64, Direct path all)
bindsize -- Size of conventional path bind array in bytes (Default 256000)
silent -- Suppress messages during run (header, feedback, errors, discards, partitions)
direct -- use direct path (Default FALSE)
parfile -- parameter file: name of file that contains parameter specifications
parallel -- do parallel load (Default FALSE)
file -- File to allocate extents from
skip_unusable_indexes -- disallow/allow unusable indexes or index partitions (Default FALSE)
skip_index_maintenance -- do not maintain indexes, mark affected indexes as unusable (Default FALSE)
commit_discontinued -- commit loaded rows when load is discontinued (Default FALSE)
readsize -- Size of Read buffer (Default 1048576)
external_table -- use external table for load; NOT_USED, GENERATE_ONLY, EXECUTE
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columnarrayrows -- Number of rows for direct path column array (Default 5000)
streamsize -- Size of direct path stream buffer in bytes (Default 256000)
multithreading -- use multithreading in direct path
resumable -- enable or disable resumable for current session (Default FALSE)
resumable_name -- text string to help identify resumable statement
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SQLLDR USERID=GROWSTAR/[email protected] CONTROL=D:\PFS2004.CTL LOG=D:\PFS2004.LOG BAD=D:\PFS2004.BAD DATA=D:\PFS2004.CSV
SQLLDR USERID=GROWSTAR/[email protected] CONTROL=D:\CLAB2004.CTL LOG=D:\CLAB2004.LOG BAD=D:\CLAB2004.BAD DATA=D:\CLAB2004.CSV
SQLLDR USERID=GROWSTAR/[email protected] CONTROL=D:\GROW\DEACTIVATESTAFF\DEACTIVATESTAFF.CTL LOG=D:\GROW\DEACTIVATESTAFF\DEACTIVATESTAFF.LOG BAD=D:\GROW\DEACTIVATESTAFF\DEACTIVATESTAFF.BAD DATA=D:\GROW\DEACTIVATESTAFF\DEACTIVATESTAFF.CSV

How to read a text file using Java

Guys,
Good day!
Please help me how to read a text file using Java and create/convert that text file into XML.
Thanks and God Bless.
Regards,
I-Talk

     public void fileRead(){
             File aFile =new File("myFile.txt");
         BufferedReader input = null;
         try {
           input = new BufferedReader( new FileReader(aFile) );
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cheers
Mohammed Jubaer Arif.

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How to read a text file through pl/sql

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Before I had an iPhone, I owned a copy of The Missing Sync for Windows Mobile. It was a pretty decent app. In my opinion, though, their app for the iPhone is NOT worth the price ($40 new, $25 for a cross-grade).
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" How to upload a Flat file into sap database if the file is in Application Server.
what is Path for that ?
Plz Tel Me its Urgent
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Hi,
ABAP code for uploading a TAB delimited file into an internal table. See code below for structures.
*& Report ZUPLOADTAB                                                  *
*& Example of Uploading tab delimited file                             *
REPORT zuploadtab                    .
PARAMETERS: p_infile LIKE rlgrap-filename
                        OBLIGATORY DEFAULT '/usr/sap/'..
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    name2 like pa0002-name2,
    age   type i,
    END OF t_record.
DATA: it_record TYPE STANDARD TABLE OF t_record INITIAL SIZE 0,
      wa_record TYPE t_record.
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name1(10) type c,
name2(15) type c,
age(5) type c,
end of t_uploadtxt.
DATA: wa_uploadtxt TYPE t_uploadtxt.
*String value to data in initially.
DATA: wa_string(255) type c.
constants: con_tab TYPE x VALUE '09'.
*If you have Unicode check active in program attributes then you will
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*class cl_abap_char_utilities definition load.
*constants:
*    con_tab type c value cl_abap_char_utilities=>HORIZONTAL_TAB.
*START-OF-SELECTION
START-OF-SELECTION.
ld_file = p_infile.
OPEN DATASET ld_file FOR INPUT IN TEXT MODE ENCODING DEFAULT.
IF sy-subrc NE 0.
ELSE.
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    READ DATASET ld_file INTO wa_string.
    IF sy-subrc NE 0.
      EXIT.
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      SPLIT wa_string AT con_tab INTO wa_uploadtxt-name1
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ENDIF.
*END-OF-SELECTION
END-OF-SELECTION.
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loop at it_record into wa_record.
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How to generate .SQL format file from oracle database?

How to generate .SQL format file from oracle database?
I have a database of Oracle 8.1.6,now want to generate script file (including table structure,index,etc.) from it,What should I do?
Thanks.

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I have a text file A look like this:
0 0
0 A B C
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2 D G G
10
1 A R T
2 T Y U
3 G H J
4 T H K
20
1 G H J
2 G H J
I want to always get rid of last letter and select only the first and last line and save it to another text file B. The output should like this
0 A B
2 D G
1 A R
4 T H
1 G H
2 G H
I know how to read and write a text file, but how can I select the text when I am reading a text file. Can anyone give me an example?
Thank you

If the text file A look like that
0 0
0 3479563,41166 6756595,64723 78,31 1,#QNAN
1 3479515,89803 6756588,20824 77,81 1,#QNAN
2 3479502,91618 6756582,6984 77,94 1,#QNAN
3 3479516,16334 6756507,11687 84,94 1,#QNAN
4 3479519,14188 6756498,54413 85,67 1,#QNAN
5 3479525,61721 6756493,89255 86,02 1,#QNAN
6 3479649,5546 6756453,21824 89,57 1,#QNAN
1 0
0 3478762,36013 6755006,54907 54,8 1,#QNAN
1 3478756,19538 6755078,16787 53,63 1,#QNAN
2 0
3 0
N 0
I want to read the line that before and after 1 0, 2 0, ...N 0 line to arraylist. I have programed the following code
public ArrayList<String>save2;
public BufferedWriter bufwriter;
File writefile;
String filepath, filecontent, read;
String readStr = "" ;
String[]temp = null;
public String readfile(String path) {
int i = 0;
ArrayList<String> save = new ArrayList <String>();
try {
filepath = "D:\\thesis\\Material\\data\\CriticalNetwork\\test3.txt";
File file = new File(filepath);
FileReader fileread = new FileReader(file);
BufferedReader bufread = new BufferedReader(fileread);
this.read = null;
// read text file and save each line content to arraylist
while ((read = bufread.readLine()) != null ) {
save.add(read);
// split each arraylist[i] element by space and save it to String[]
for(i=0; i< save.size();i++){
this.temp = save.get(i).split(" ") ;
// if String[] contain N 0 such as 0 0, 1 0, 2 0 then save its previous and next line from save arraylist to save2 arraylist
if (temp.equals(i+"0")){
this.save2.add(save.get(i));
System.out.println(save2.get(i));
} catch (Exception d) {
System.out.println(d.getMessage());
return readStr;
My code has something wrong. It always printout null. Can anyone help me?
Best Regards,
Zhang

How to read\write text file into oracle database.

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