Text File Database

Hello,
i am a student at The Open University "APEIRON" Travnik (www.out.edu.ba), i am pursuing a Masters degree in IT, we have one Exam called Java programming.
My practical exam part is to create a program that should enable user to manipulate students grades. The app should allow these options:
- Read students data,
Read students data, needs to ask a user for students name and some ID (Surname etc.), and after that lists students grades and Courses.
- Inserting of new grades,
Inserting of new grades should have option to insert a new Course name, students name and grade for that Course.
- Change of existing grades.
Change of existing grades needs to ask for students name and/or ID, surname and the name of a Course and shows his present grade, Then it should have an option to change students grade for that Course.
For this App all of validations should be done.
All of the data (students names, Course names, Grades etc.), needs to be stored in text file database?! Now, i am a newb to Java, but i worked before with VB, and SQL, and i saw there are some similarities to acces and modify data in SQL database. But the problem is, i never worked with Flat text file databases and now i am stuck, i do not even know how to create a text database or even to connect Java to that database.
Please, if anyone can help me i would be very grateful!?

HaloOo wrote:
i am pursuing a Masters degree in ITPursuing as in commencing, or pursuing as in first/second year undergraduate student. If the former then I am abit worried at your lack of prior research (or is this how you research).
Please, if anyone can help me i would be very grateful!?You will need to invest some time in the basics of programming in Java and OOL. There are multiple tutorials available on reading/writing to text files. One thing to note: a text file is treated in the majority of cases like a wipe board. You can write a whole bunch of stuff on it, but if you decide you want to write a line in the middle, then unfortunately you need to read what is currently on the whiteboard, rewrite it, append your new message, then append the remainding text from the white board. IMHO a (RAF) is not applicable in this situation.
Task1: Java: hello world
Task2: Introductory tutorials
Task3: Read a text file/write a text file/display contents of file
You choose,
Mel

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Help needed in reading text file to database table

Hello experts,
i have to insert the values from the column of this text file and insert them in my database table.
I have done a few file to table insertions but i'm having some trouble with this one.
Any suggestions plz
thanks
liab_report      1.00                                                                                                                              Page: 1
CDC:00537 / Mon Jun-21-2010                           LIABILITY REPORT                               Mon Jun-21-2010 22:06:26
DRAW    1; SET    1; November 7, 2009
                     TOTAL       PAID ON         TOTAL    EXPIRED ON         TOTAL    FRAC   OUTSTANDING
                   WINNERS      06/21/10          PAID      06/21/10       EXPIRED   ROUND
DIVISION          AMOUNT        AMOUNT        AMOUNT        AMOUNT        AMOUNT AMOUNT        AMOUNT
    Div1              0.00          0.00          0.00          0.00          0.00    0.00          0.00
    Div2         701040.00          0.00     660146.00          0.00      40894.00    0.00          0.00
    Div3        1444128.00          0.00    1330056.00          0.00     114072.00    0.00          0.00
    Div4        4711900.00          0.00    3889700.00          0.00     822200.00    0.00          0.00
                6857068.00          0.00    5879902.00          0.00     977166.00    0.00          0.00
DRAW    2; SET    1; November 14, 2009
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                   WINNERS      06/21/10          PAID      06/21/10       EXPIRED   ROUND
DIVISION          AMOUNT        AMOUNT        AMOUNT        AMOUNT        AMOUNT AMOUNT        AMOUNT
    Div1              0.00          0.00          0.00          0.00          0.00    0.00          0.00
    Div2         817817.00          0.00     817817.00          0.00          0.00    0.00          0.00
    Div3        1687405.00          0.00    1611742.00          0.00      75663.00    0.00          0.00
    Div4        3402100.00          0.00    3034200.00          0.00     367900.00    0.00          0.00
                5907322.00          0.00    5463759.00          0.00     443563.00    0.00          0.00
DRAW    3; SET    1; November 21, 2009
                     TOTAL       PAID ON         TOTAL    EXPIRED ON         TOTAL    FRAC   OUTSTANDING
                   WINNERS      06/21/10          PAID      06/21/10       EXPIRED   ROUND
DIVISION          AMOUNT        AMOUNT        AMOUNT        AMOUNT        AMOUNT AMOUNT        AMOUNT
    Div1              0.00          0.00          0.00          0.00          0.00    0.00          0.00
    Div2         779933.00          0.00     769804.00          0.00      10129.00    0.00          0.00
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Plz clarify whether u want to load text file as a file into database or value of this text file into database. If values are to be loaded from this text file, U can better format the text file and use SQL loader to load the file into database. By formatting the database, i mean remove the unnecessary headings and characters, kee only the values to be loaded idelimited by ' '(space) or ','(comma). Create a control file and load it into the target table.

Importing text file into database

Hi again,
Could anyone give me any pointers on how to take a text file or csv file (or any other delimeted text file) and read the contents into java and then use the read in data to then insert the delimeted data into the table.
i assume i have to read the delimeted data into a variable then parse the complete string with the delimeter and split the data up maybe in an array. Maybe this is completely wrong, im really unsure.
any help would be greatly appreciated even a point in the right direction would be great :)
kind regards.

Well, atleast i dont know of a single method, which does this kind of nonhomogenous task!! Its not hard to impliment what you want-->
//open the text file using FileInputStream & get the contents in a String variable
//Tokenise it
StringTokenizer st=new StringTokenizer(your_string_retrieved_from_file,delimiter);
int i=0;
while(st.hasMoreTokens())
i++;
//SQL Statement that inserts a string into database table(integer, varchar2)
insert into test_table values(i,st.nextToken());
Unless you are talking about putting the tokens as coloums in a single row, i dont find why this is a problem & if you are actually doing the above case, then you might wanna rethink your design

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import java.awt.event.*;
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gui.show();
gui.pack();
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exitWindow(1); }
inputLabel_lastname.setLabelFor(inputText_lastname);
inputText_lastname.setHorizontalAlignment(JTextField.RIGHT);
inputText_lastname.addActionListener(this);
inputLabel_firstname.setLabelFor(inputText_firstname);
inputText_firstname.setHorizontalAlignment(JTextField.RIGHT);
inputText_firstname.addActionListener(this);
inputLabel_middleinitial.setLabelFor(inputText_middleinitial);
inputText_middleinitial.setHorizontalAlignment(JTextField.RIGHT);
inputText_middleinitial.addActionListener(this);
inputButton.addActionListener(this);
inputLayout.add(inputLabel_lastname);
inputLayout.add(inputText_lastname);
inputLayout.add(inputLabel_firstname);
inputLayout.add(inputText_firstname);
inputLayout.add(inputLabel_middleinitial);
inputLayout.add(inputText_middleinitial);
inputLayout.add(inputButton);
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dataTableScrollPane.setViewportView(dataTable);
getContentPane().add("Center",dataTableScrollPane);
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String hold;
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System.out.println("Uh oh, got an IOException error!" + e.getMessage());
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System.exit(i);
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try {
jbInit();
catch(Exception e) {
e.printStackTrace();
private void jbInit() throws Exception {
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Nothing happens because in the actionPerformed() method you are creating a new version of GUIdirectory. You just want to execute the dbTest() method of the current instance of GUIdirectory.
The code should be:
public void actionPerformed(ActionEvent evt)
//GUIdirectory gui = new GUIdirectory();
//gui.dbTest();
dbTest();

Importing a Text File to Database

Hi There,
Years ago with limited Coldfusion experience I created a Cold fusion process (below) that deletes the contents of a database table and inserts the contents of a 7mb text file which is passed via FTP down to our web server at regular intervals. Admittingly the code below is probably clunky to the more experienced, however i have found this process to work for the last 4 years without a problem. Recently my web server (shared hosted environment) has been throwing this error when this page runs,
"Request aborted due to heavy system load.",
I asked my host if there has been any changes, extra sites recently added to the server that may be causing this congestion which they naturally replied "no". I even tried reducing the text file size to about 3mb but still got the same issue. Is there any other more efficient coldfusion code options I can try that may be quicker and prevent the error from being thrown?
Im on Coldfusion 7 and using MS SQL server, database and coldfusion are on differnt boxes in a shared environment.The text file can contain null values and is delimeted by a pipe character "|"
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<cfqueryparam value='#test.column_2#' cfsqltype="cf_sql_varchar">,
<cfqueryparam value='#test.column_3#' cfsqltype="cf_sql_varchar">,
<cfqueryparam value='#test.column_4#' cfsqltype="cf_sql_varchar">,
<cfqueryparam value='#test.column_5#' cfsqltype="cf_sql_varchar">,
<cfqueryparam value='#test.column_6#' cfsqltype="cf_sql_varchar">,
<cfqueryparam value='#test.column_7#' cfsqltype="cf_sql_varchar">,
<cfqueryparam value='#test.column_8#' cfsqltype="cf_sql_varchar">,
<cfqueryparam value='#test.column_9#' cfsqltype="cf_sql_varchar">,
<cfqueryparam value='#test.column_10#' cfsqltype="cf_sql_varchar">,
<cfqueryparam value='#test.column_11#' cfsqltype="cf_sql_float">,
<cfqueryparam value='#test.column_12#' cfsqltype="cf_sql_float">,
<cfqueryparam value='#test.column_13#' cfsqltype="cf_sql_float">,
<cfqueryparam value='#test.column_14#' cfsqltype="cf_sql_varchar">,
<cfqueryparam value='#test.column_15#' cfsqltype="cf_sql_varchar">,
<cfqueryparam value='#test.column_16#' cfsqltype="cf_sql_varchar">,
<cfqueryparam value='#test.column_17#' cfsqltype="cf_sql_varchar">,
<cfqueryparam value='#test.column_18#' cfsqltype="cf_sql_varchar">,
<cfqueryparam value='#test.column_19#' cfsqltype="cf_sql_varchar">,
<cfqueryparam value='#test.column_20#' cfsqltype="cf_sql_varchar">,
<cfqueryparam value='#test.column_21#' cfsqltype="cf_sql_varchar">,
<cfqueryparam value='#test.column_22#' cfsqltype="cf_sql_varchar">,
<cfqueryparam value='#test.column_23#' cfsqltype="cf_sql_varchar">,
<cfqueryparam value='#test.column_24#' cfsqltype="cf_sql_varchar">
</cfquery>
</cfloop>
<cfparam name="OZ" default=""><cfset OZ=#dateAdd("h",18,now())#>
<cfset OZ=#CreateODBCDateTime(OZ)#>
<cfquery datasource="#client.dsn#" username="#client.username#" password="#client.password#">
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UpdateTimes
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time=#OZ#
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Girish Sharma wrote:
"I would be really grateful."
But now OP will not really grateful to you; because;
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Regards
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Hi Corona,
"Corona Fang" <[email protected]> wrote in message
news:3f3b0ea3$[email protected]..
We need to develop an on-line application which requires us to load inputdata
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Hi,
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ömer faruk akyüzlü
in Turkey

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grant read on directory &1 to public;
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col3 VARCHAR2(250),
col4 VARCHAR2(250),
col5 VARCHAR2(250),
col6 VARCHAR2(250),
col7 VARCHAR2(250),
col8 VARCHAR2(250),
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col10 VARCHAR2(250),
col11 VARCHAR2(250),
col12 VARCHAR2(250),
col13 VARCHAR2(250),
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OPTIONALLY ENCLOSED BY '"'
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Hi.
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Hi quitte ,
Thanks for replying. I just want to pick names randomly from file or database to name each and every customer in my application dynamically.
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hi all.
please i need to read data seperated by coma from a text file and insert it in oracle database. how can i do this
thanx

Use this function (with Forms : TEXT_IO)
(Change PIPE-delimited line with comma -delimited )
create a FUNCTION in Program Unit
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/* Returns the first token from the PIPE-delimited line */
/* passed as linebuf. Linebuf then has that token stripped */
/* so that subsequent calls return the second, third, etc. */
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PIPE_POS NUMBER;
BEGIN
PIPE_POS := INSTR(LINEBUF, ',');
IF PIPE_POS = 0 THEN
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LINEBUF := null;
ELSE
FIRST_TOKEN := SUBSTR(LINEBUF, 1, PIPE_POS - 1);
LINEBUF := SUBSTR(LINEBUF, PIPE_POS + 1);
END IF;
RETURN FIRST_TOKEN;
END;
Or If you are using 10gR2
Look
http://www.oracle.com/technology/products/forms/htdocs/webutil/webutil.htm
or
http://www.oracle.com/technology/sample_code/products/forms/index.html
or Francois Degrelle Blog(There is a example)
http://fdegrelle.over-blog.com/
Regards

Reading text file from database server in OA Page

Hi Guys,
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Regards,
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If the file to be read is on the database, then it makes sense to use the pl/sql code to read the file. Make a call to this pl/sql code from page controller to get back the values.
--Shiv

How to extract data from text file to database table

Hi ,
I am trying to upload data in text file to database table using GUI_UPLOAD function .what would be the program for that.
thanks in advance.

Hi,
I don't think you have a standard sap program to upload data from file to database table...
Instead you can create a custom program like this..
DATA: T_FILEDATA(1000) OCCURS 0 WITH HEADER LINE.
DATA: T_ZTABLE LIKE ZTABLE OCCURS 0 WITH HEADER LINE.
CALL FUNCTION 'GUI_UPLOAD'
EXPORTING
    filename                      = 'C:\TEST.TXT'
tables
    data_tab                      = T_FILEDATA
EXCEPTIONS
   FILE_OPEN_ERROR               = 1
   FILE_READ_ERROR               = 2
   NO_BATCH                      = 3
   GUI_REFUSE_FILETRANSFER       = 4
   INVALID_TYPE                  = 5
   NO_AUTHORITY                  = 6
   UNKNOWN_ERROR                 = 7
   BAD_DATA_FORMAT               = 8
   HEADER_NOT_ALLOWED            = 9
   SEPARATOR_NOT_ALLOWED         = 10
   HEADER_TOO_LONG               = 11
   UNKNOWN_DP_ERROR              = 12
   ACCESS_DENIED                 = 13
   DP_OUT_OF_MEMORY              = 14
   DISK_FULL                     = 15
   DP_TIMEOUT                    = 16
   OTHERS                        = 17
IF sy-subrc <> 0.
MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
        WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.
LOOP AT T_FILEDATA.
T_ZTABLE = T_FILEDATA.
APPEND T_ZTABLE.
ENDLOOP.
MODIFY ZTABLE FROM TABLE T_ZTABLE.
COMMIT WORK..
Thanks,
Naren

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Hi Paul,
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$emailBody = "Daily/Weekly/Monthly report on Content & Config databases"
$webapps = Get-SPWebApplication
$configDB = Get-SPDatabase | ?{$_.Name -eq ((Get-SPFarm).Name)}
$ConfigDBSize = [Math]::Round(($configDB.disksizerequired/1GB),2)
Add-Content -Path $TXTFile -Value "Config Database size: $($ConfigDBSize)GB"
Add-Content -Path $TXTFile -Value ""
foreach($webapp in $webapps)
$ContentDatabases = $webapp.ContentDatabases
Add-Content -Path $TXTFile -Value "Content databases for $($webapp.url)"
foreach($ContentDatabase in $ContentDatabases)
$ContentDatabaseSize = [Math]::Round(($ContentDatabase.disksizerequired/1GB),2)
Add-Content -Path $TXTFile -Value "- $($ContentDatabase.Name): $($ContentDatabaseSize)GB"
if(!($SMTPServer) -OR !($emailFrom) -OR !($emailTo))
Write-Host "No e-mail being sent, if you do want to send an e-mail, please enter the values for the following variables: $SMTPServer, $emailFrom and $emailTo."
else
Send-MailMessage -SmtpServer $SMTPServer -From $emailFrom -To $emailTo -Subject $subject -Body $emailBody -Attachment $TXTFile
Nico Martens - MCTS, MCITP
SharePoint 2010 Infrastructure Consultant / Trainer

Text file storing in a database table

I have a text file, that contains so many lines in it,..
Now the problem is that.. I want to store my text file with the pl/sql code in a database table....
plz suggest, how to create a table and how to store that text file in a database table.....

The following code is tested and get the correct result (forms 10.1.2.0):
Connected to:
Oracle Database 11g Enterprise Edition Release 11.1.0.7.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
SQL> create table tclob (col_lob clob);
Table created.
Declare
file TEXT_IO.FILE_TYPE;
text varchar2(10000);
L$Clob CLOB;
Begin
-- prepare CLOB object --
dbms_lob.createtemporary( L$Clob, TRUE ) ;
-- open text file --
file := TEXT_IO.FOPEN( 'c:\forms.css', 'R' ) ;
If TEXT_IO.IS_OPEN( file) Then
    -- start reazding file --
     Begin
       Loop
         TEXT_IO.GET_LINE( file, text );
         -- add the line to the CLOB variable --
            dbms_lob.writeappend (L$Clob, length(text), text);
       End loop;
    Exception
      when no_data_found then
        -- end of text file --
        TEXT_IO.FCLOSE(file);
      when others then
       null;
    End ;
    -- store the CLOB in the database --
    --Update tclob Set col_lob = L$Clob ;
    insert into tclob (col_lob) values (L$Clob);
    forms_ddl('commit');
       dbms_lob.freetemporary( L$Clob ) ;
End if ;
exception
     when others then
     message(error_code || '-' || error_text);
End;Francois

Text File Database

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