Read and write a item's value in running Form.
Hi everybody,
Could you help me?
I have a table name QUANTITY(store in Oracle database server), this table have 2 filed: Model name and Quantity
I created a oracle form(Store in oracle application server) to show Quantity. I running this form in a client.
Now i want read and write QUANTITY of one Model to text file in client. It is difficult to me!
Please help me,
Try something like this...
PROCEDURE load_data IS
outFile CLIENT_TEXT_IO.FILE_TYPE;
linebuf varchar2(1000);
X1 VARCHAR2(20) := ' ';
X2 VARCHAR2(15);
File_Not_Found EXCEPTION;
cursor c1 is
select col1, col2 from QUANTITY;
BEGIN
outFile := CLIENT_TEXT_IO.FOPEN('c:\tmp\Outputfile.txt','w');
if CLIENT_TEXT_IO.IS_OPEN(outFile) then
open c1;
LOOP
FETCH C1 INTO c1_rec;
EXIT WHEN C1%NOTFOUND;
X1 := c1_rec.col1;
x7 := c1_rec.col2;
linebuf := X1|| ' ' ||X2;
CLIENT_TEXT_IO.put(outFile,linebuf);
CLIENT_TEXT_IO.NEW_LINE(outfile);
END LOOP;
close c1;
end if;
CLIENT_TEXT_IO.FCLOSE(outfile);
END;Hope this helps,
Charan
Edited by: Charan on Oct 2, 2011 4:09 PM
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import java.io.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
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/////////////////////////////////////////////from read end
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super( "Employee Data" ); // appears in top of gui
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private void closeFile()
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try {
//you want to cycle through each recordand add them to store here.
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JOptionPane.showMessageDialog( this, "Error closing file",
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try {
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fieldValues[ BankUI.IDNUMBER ] );
String dob = fieldValues[ BankUI.DOB ];
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JOptionPane.showMessageDialog( this,
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JOptionPane.ERROR_MESSAGE );
// process exceptions from file output
catch ( ArrayIndexOutOfBoundsException ArrayException ) {
JOptionPane.showMessageDialog( this, "Error with Start Date or Date of Birth\nPlease enter like: 01-01-2001",
"IO Exception", JOptionPane.ERROR_MESSAGE );
// process exceptions from file output
catch ( IOException ioException ) {
JOptionPane.showMessageDialog( this, "Error writing to file",
"IO Exception", JOptionPane.ERROR_MESSAGE );
closeFile();
} // end if
} // end method addRecord
public static void main( String args[] )
new testing();
} // end class CreateSequentialFileSure you can read and write at the same time. But normally you would be reading from one place and writing to another place.
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index_fine++;
// copio dall'inizio fino alle virgolette
CopyString (stringa_destinazione, index_destinazione, stringa_sorgente[i], index_start, index_fine - index_start);
index_destinazione += index_fine - index_start;
// ne aggiungo una dopo
stringa_destinazione[index_destinazione++] = '"';
// aggiorno la posizione di start e riparto con il while
index_start = index_fine;
}while(index_fine != -1);
CopyString (stringa_destinazione, index_destinazione, stringa_sorgente[i], index_start, lunghezza_stringa - index_start);
index_destinazione += strlen(stringa_sorgente[i]) - index_start;
// alla fine della riga chiudo la parentesi
stringa_destinazione[index_destinazione++] = '"';
else{
// altrimenti la copio semplicemente e shifto l'indice della stringa di destinazione
CopyString (stringa_destinazione, index_destinazione, stringa_sorgente[i], 0, lunghezza_stringa);
index_destinazione += strlen(stringa_sorgente[i]);
memset(stringa_sorgente[i], 0, strlen(stringa_sorgente[i]));
errore = WriteLine (file_handle, stringa_destinazione, strlen(stringa_destinazione));
if(errore == -1){
errore = GetFmtIOError();
MessagePopup("WriteLine -> WriteLine", GetFmtIOErrorString(errore));
return;
here how to read the file
char *stringhe_sorgenti[10] = {0};
for(i = 0; i < sizeof(stringhe_sorgenti)/sizeof(char*); i++){
stringhe_sorgenti[i] = (char*)calloc(200, sizeof(char));
out = OpenFile(nomearchivio, VAL_READ_ONLY, VAL_OPEN_AS_IS, VAL_BINARY);
leggi_riga_csv(out, stringhe_sorgenti, sizeof(stringhe_sorgenti)/sizeof(char*), formato);
strcpy(intestazione.data, stringhe_sorgenti[1]);
for(i = 0; i < sizeof(stringhe_sorgenti)/sizeof(char*); i++){
free(stringhe_sorgenti[i]);
CloseFile(out);
and here the reader
void leggi_riga_csv(int file_handle, char *stringa_destinazione[], int numero_stringhe, int formato)
char delimitatore[2][2] = {{',', '\0'},
{';', '\0'}};
char stringa_sorgente[1024] = {0};
int stringa_in_corso = {0};
int index_inizio_valore = {0};
int index_doublequote = {0};
int offset_stringa_destinazione = {0};
size_t lunghezza_stringa = {0};
int inquote = {0};
int errore = {0};
int i = {0};
for(i = 0; i < numero_stringhe; i++){
lunghezza_stringa = strlen(stringa_destinazione[i]);
memset(stringa_destinazione[i], 0, lunghezza_stringa);
do{ memset(&stringa_sorgente, 0, sizeof(stringa_sorgente));
errore = ReadLine(file_handle, stringa_sorgente, sizeof(stringa_sorgente) - 1);
// If ReadLine reads no bytes because it has already reached the end of the file, it returns –2.
// If an I/O error occurs, possibly because of a bad file handle, ReadLine returns –1.
// You can use GetFmtIOError to get more information about the type of error that occurred.
// A value of 0 indicates that ReadLine read an empty line.
if(errore == -1){
errore = GetFmtIOError();
MessagePopup("leggi_riga_csv -> ReadLine", GetFmtIOErrorString(errore));
return;
else if(errore == -2){
errore = GetFmtIOError();
MessagePopup("leggi_riga_csv -> ReadLine", "already reached the end of the file");
return;
else{
lunghezza_stringa = errore;
index_inizio_valore = 0;
// metodo find pattern, piu' complesso ma piu' performante
for(i = 0; i <= lunghezza_stringa; i++){
// se come primo carattere ho una " allora e' una stringa speciale
if(inquote == 0){
if(stringa_sorgente[i] == '\"'){
inquote = 1;
index_inizio_valore = ++i;
else{
// altrimenti cerco il delimitatore senza il ciclo for
i = FindPattern(stringa_sorgente, i, lunghezza_stringa - index_inizio_valore, delimitatore[formato], 0, 0);
if(i == -1){
// se non lo trovo ho finito la riga
i = lunghezza_stringa;
if(stringa_sorgente[i - 1] == '\r'){
i--;
if(stringa_in_corso < numero_stringhe){
CopyString (stringa_destinazione[stringa_in_corso], 0, stringa_sorgente, index_inizio_valore, i - index_inizio_valore);
offset_stringa_destinazione = 0;
stringa_in_corso++;
if(stringa_sorgente[i] == '\r'){
i++;
index_inizio_valore = i + 1;
if(inquote == 1){
// se sono nelle parentesi cerco le virgolette
i = 1 + FindPattern(stringa_sorgente, i, lunghezza_stringa - index_inizio_valore, "\"", 0, 0);
if(i == 0){
if(stringa_sorgente[lunghezza_stringa - 1] == '\r'){
lunghezza_stringa--;
// se non le trovo ho finito la riga, esco dal ciclo for
break;
// se incontro una doppia parentesi salto avanti
else if(stringa_sorgente[i] == '\"'){
continue;
// !!!! fondamentale non cambiare l'ordine di questi else if !!!!!
// se incontro una parentesi seguita dal delimitatore
// o se incontro una parentesi seguita dal terminatore
// \r = CR = 0x0D = 13
// \n = LF = 0x0A = 10
// a capo = CR + LF
else if( (stringa_sorgente[i] == delimitatore[formato][0])
|| (stringa_sorgente[i] == '\r')
|| (stringa_sorgente[i] == '\0')
// salvo il valore
inquote = 0;
if(stringa_in_corso < numero_stringhe){
CopyString (stringa_destinazione[stringa_in_corso], offset_stringa_destinazione, stringa_sorgente, index_inizio_valore, i - 1 - index_inizio_valore);
offset_stringa_destinazione = 0;
stringa_in_corso++;
if(stringa_sorgente[i] == '\r'){
i++;
index_inizio_valore = i;
// se sono andato a capo scrivo fino a dove sono e poi procedo con la nuova riga
if(inquote){
if(stringa_in_corso < numero_stringhe){
CopyString (stringa_destinazione[stringa_in_corso], offset_stringa_destinazione, stringa_sorgente, index_inizio_valore, lunghezza_stringa - index_inizio_valore);
strcat(stringa_destinazione[stringa_in_corso], "\n");
offset_stringa_destinazione += lunghezza_stringa - index_inizio_valore;
offset_stringa_destinazione++;
}while(inquote == 1);
// elimino le doppie parentesi
for(i = 0; i < numero_stringhe; i++){
index_doublequote = 0;
do{ lunghezza_stringa = strlen(stringa_destinazione[i]);
index_doublequote = FindPattern(stringa_destinazione[i], index_doublequote, lunghezza_stringa - index_doublequote, "\"\"", 0, 0); // contiene doppia parentesi
if(index_doublequote != -1){
index_doublequote++;
memmove (stringa_destinazione[i] + index_doublequote, stringa_destinazione[i] + index_doublequote + 1, lunghezza_stringa - index_doublequote);
}while(index_doublequote != -1);
return;the format is CSV, i try to explain better what i'm doing.
our client asked to save acquisition data with header description in an excel readable format, i've decided to use .CSV and not .TDM because it's a simple txt file and we never used .TMD but i will propose to use it.
after some research on the internet i've found nothing to handle .CSV in CVI except from this csv_parse but i've found it difficult to be maintained so i've write it by my own hand.
i've written two example of how to use my function to read or write and i've copyed my function used to read and write.
in the write function i check with FindPattern if the string to be write contain some special character, if i find this i have to quote the string to respect the standard RFC4180 and if i find a quote i have to double it. aftere i've done this check i write the line in the file.
in the read function, that is more complicated, i:
check if the first character is a quote.
if it's not i copy the string until the delimitier or until the end of the line.
if it is i have a string with special character inside so:
i find the first quote in the string. when i've found i check if it's follwed by another quote. this means that in the starting message i was writing a single quote.
if it's not followed by another quote but it's followed by a delimiter or a carriage return i've finished the special line.
if i don't find it it means that the special quote have a carriage return inside and i have to check the next line. before checking the next line i save this in my string.
after this loop i check in every string if i have a double quote and i delete one.
the main problem is in the speed of this, i'm acquiring data at 1000 S/s with 8 active channel for 60 second so i have 480000 data to be stored, divided in 60.000 row and 8 column. to read a file like that my pc stay "locked" for 15 second or more.
i've tried to use the arraytofile function and it's extremly fast and i can also put header because the function can start from the last position in the file but the filetoarray function start from the beginning and i cannot read the header correctly. also if i'm using the european CSV with semicolon as delimiter with arraytofile i cannot select the semicolon but only the coma -
How can I read and write text in rings that are inside an array?
Hello All!!!
How can I read and write text in rings that are inside an array?
Regards and thanks in advance.Use a Property Node linked to the Ring inside the array.
Of course, all elements in the array will have the same text values.
B-)
Message Edited by LabViewGuruWannabe on 12-13-2007 09:47 AM
Message Edited by LabViewGuruWannabe on 12-13-2007 09:48 AM
Message Edited by LabViewGuruWannabe on 12-13-2007 09:49 AM
Attachments:
Strings-BD.PNG 17 KB
Strings-FP1.PNG 23 KB -
Read and write existing xml file trouble !
Hi everyone !
i'm trying to save hight score of user in my game by using a xml file , in my xml file has element <best_score>0<best_score/>
and my code to do it is :
XElement best=XElement.Load("Assets/best.xml");
IEnumerable<XElement> loc = best.Elements("best_score");
foreach (XElement elem in loc)
int check=Convert.ToInt32(elem.Value.ToString());
int score_user = Convert.ToInt32(scores.ToString());
if (score_user >= check)
hight_score.Text = score.ToString();
elem.Value = scores.ToString();
// what code to save this xml file after modify ?????
else
list_box.Text = check.ToString();
i down know what method can help me save my xml file after update hight score of user in this case .
Anyone has an idea to solve it for me ? please , thanks you !
sorry about my english !Hi,
It is not recommended to update a file withing the project, so you need to store it in the IsolatedStorage.
Here is a sample to read and write file in IsolatedStorage,
XDocument xDoc;
var file = Util.ReadFile("XMLFile.xml");
if (file != null)
xDoc = XDocument.Parse(file);
var bestScore = xDoc.Element("best_score").Value;
//do calculation
xDoc.Element("best_score").Value = "200";
Util.SaveFile("XMLFile.xml", xDoc.ToString());
For the above code to work, you need to have a file named "XMLFile.xml" in your IsolatedStorage, with data as "<best_scrore>200</best_scrore>"
To read and write file:
public static class Util
public static void SaveFile(string filename, string data)
try
using (var store = System.IO.IsolatedStorage.IsolatedStorageFile.GetUserStoreForApplication())
using (var stream = new IsolatedStorageFileStream(filename, FileMode.Create, FileAccess.ReadWrite, store))
StreamWriter writer = new StreamWriter(stream);
writer.Write(data);
writer.Close();
catch (Exception)
Debug.WriteLine("Couldn't save the file.");
public static string ReadFile(string filename)
try
String data;
if (!IsolatedStorageFile.GetUserStoreForApplication().FileExists(filename)) return null;
using (var store = System.IO.IsolatedStorage.IsolatedStorageFile.GetUserStoreForApplication())
using (var stream = new IsolatedStorageFileStream(filename, FileMode.Open, FileAccess.ReadWrite, store))
StreamReader stmReader = new StreamReader(stream);
data = stmReader.ReadToEnd();
stmReader.Close();
return data;
catch (Exception)
return null;
Pradeep AJ -
Fast way to read and write console
hi guys
what's the fastest way to read and write from console?
For writing I'm using (I think thats the fastest way)
System.out.println(foo)and I have to read the following - all numbers are ints (that means m + n + 1 lines):
1 * "<n> <m>"
n * "<a> <b> <c>"
m * "<a> <b>"Actual I'm reading (the second line for example) with
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
String[] items = br.readLine().split("[^\\-\\.0-9]+");
Target mainTarget = new Target(Integer.parseInt(items[0]), Integer.parseInt(items[1]), Integer.parseInt(items[2]));
for (int i = 1; i < m; i++) {
items = br.readLine().split("[^\\-\\.0-9]+");
mainTarget.addTarget(Integer.parseInt(items[0]), Integer.parseInt(items[1]), Integer.parseInt(items[2]));
} But that isn't really fast...
have you any idea?
grz faetzminatorfaetzminator wrote:
right, I have 1 + 1 + 1 =3 up to 10^6-1 + 10^6-1 + 1 =2*10^6-1 input lines with max 4999997 integers (and I have to store 2999999 of them)
ok, if that is the fastest way... (maybe the reading of the input file is so slow; I run eg "java Foo < input > output")All those br.readLine calls where you never check if the return is null are dangerous.
I really don't understand what you are doing. You mentioned System.in at first and now reading from files.
I also am pretty sure that you are in fact running out of memory. -
Read and write data from content repository .
Hi All,
We are using content repository to store some document and images on web center server .
So we have created/setup a content repository on web center .
Please proivde me some documnet /wiki page to get some idea how can i read and write date in
content repository .
You are most welocme to provide some idea /suggestion .
Thanks,
Arun.Have you already configured webcenter spaces so it can use content server?
Have you installed the content server seperatly from webcenter or as a part of the webcenter installation?
Check if you have the webcenter spaces component installed in content server because without i don't think it will work...
If you already have configured UCM to work with spaces it's quiet easy.
From your groupspace, open the settings page of your groupspace. Go to the services tab. In the left hand side you can enable the documents services. WHen you have done that, you are able to add the document services taskflows to your pages. Just go to a page in your pagegroup and edit it. Open the resource catalog and you will find some extra taskflows you can add.
If you haven't configured UCM and webcenter to work together, here some steps that will help you:
* Integrating UCM with Spaces
* They both need to use the same LDAP store.
* Since there is no LDAP server available, we choose for embedded WLS LDAP.
* Integrating the ucm into apache
* Stop UCM
* In /oracle/product/wls10320/WebCenter/ucm/config/config.cfg, check the SocketHostAddressSecurityFilter to contain 127.0.0.1
* Add the SocketHostAddressSecurityFilter to /oracle/product/wls10320/WebCenter/ucm/admin/bin/intradoc.cfg
* Add to /oracle/product/wls10320/WebTier/instances/instance1/config/OHS/ohs1/httpd.conf
include /oracle/product/wls10320/WebCenter/ucm/data/users/apache22/apache.conf
* Change the mod_wl_ohs.conf file to
<IfModule weblogic_module>
WebLogicHost localhost
WebLogicPort 7001
Debug ON
WLLogFile /tmp/weblogic.log
</IfModule>
<Location /webcenter>
SetHandler weblogic-handler
WebLogicCluster localhost:8888
</Location>
<Location /webcenterhelp>
SetHandler weblogic-handler
WebLogicCluster localhost:8888
</Location>
<Location /owc_discussions>
SetHandler weblogic-handler
WebLogicCluster localhost:8890
</Location>
<Location /em>
SetHandler weblogic-handler
</Location>
<Location /console>
SetHandler weblogic-handler
</Location>
<Location /consolehelp>
SetHandler weblogic-handler
</Location>
* Restart UCM & WebTier
* Test URL: http://yourServer:7777/idc
* Configure the Identity Store for UCM & WebCenter
* Set the password for the embedded ldap in WLS
Console => Domain Name => Security tab => Embedded LDAP tab => reset credentials
* Restart AdminServer
* Stop UCM
* Add the following to /oracle/product/wls10320/WebCenter/ucm/config/jps-config.xml
<serviceInstance name="idstore.oid" provider="idstore.ldap.provider">
<property name="subscriber.name" value="ou=myrealm,dc=webcenter_domain"/>
<property name="idstore.type" value="WLS_OVD"/>
<property name="security.principal.key" value="ldap.credential"/>
<property name="security.principal.alias" value="JPS"/>
<property name="ldap.url" value="ldap://yourServer:7001"/>
<extendedProperty>
<name>user.search.bases</name>
<values><value>ou=people,ou=myrealm,dc=webcenter_domain</value></values>
</extendedProperty>
<extendedProperty>
<name>group.search.bases</name>
<values><value>ou=groups,ou=myrealm,dc=webcenter_domain</value></values>
</extendedProperty>
<property name="username.attr" value="uid"/>
<property name="user.login.attr" value="uid"/>
<property name="groupname.attr" value="cn"/>
</serviceInstance>
* In the same file, change the serviceInstanceRef ref="idstore.ldap" to "idstore.oid"
* Go to /oracle/product/wls10320/WebCenter/ucm/custom/FustionLibraries/tools
* ./run_credtool.sh
Alias: default
Key: default
User Name: cn=Admin
Password: weblogic123
JPS Config: default
* Start UCM
* Check Provider:
* Go to http://yourServer:7777/idc
* Login : sysadmin/idc
* Administration -> Providers
* jpsuser should be good
* When a ldapuser exist, disable it!!
* Configuring UCM for content search
* Change the file /products/WebCenter11gR1/WebCenter/ucm/config/config.cfg
SearchIndexerEngineName=DATABASE.METADATA to SearchIndexerEngineName=DATABASE.FULLTEXT
* Restart UCM server
* Run the /products/WebCenter11gR1/WebCenter/ucm/database/oracle/admin/batchsnippet.sql in the wcbepsc_ocserver schema
* Restart UCM server
* Open the /products/WebCenter11gR1/WebCenter/ucm/bin/RepositoryManager (sysadmin/idc)
* Recreate the indexes
* Registering UCM with WebCenter
* Go to http://yourServer:7777/em
* Login with weblogic/weblogicPassword
* Go to WebCenter - WebCenter Spaces - webcenter (WLS_Spaces)
* From the top menu, select Settings - Service Configuration
* Select Content Repository
* Add
Connection Name: ucm_connection
Repository Type: Oracle Content Server
Active Connection: checked
Administrator User Name: sysadmin
Root Folder: /WebCenterSpaces
Application Name: Spaces
CIS Socket Type: Socket
Server Host: localhost
Server Port: 4444
Authentication Method: Identity Propagation
* Restart WLS_Spaces
* Test the connection by creating a new group space and upload a document to the document page of this group spaceHope this helps. -
Which is better? To wire a URL or a reference into Datasocket read/write?
Does wiring in the reference save processor effort/time? Do I have to close the DS reference before I can do other things to either the same DS connection or other connections? The examples I have looked at tend to use URL's, why is this?
(I am running Labview 7.0 on Windows 2000)I'd like to bring this thread back up because I'm having the same issue as Michael here.....
I'm stumped on a the functionality of the Read/Write mode for the Datasockets Open VI.
I've attached a picture below showing the 2 different methods of
opening Datasocket references....In one case, I use the Read/Write mode
for DS open, in the other case, I use 2 DS opens: One for READ and
another for WRITE. For some reason, only the latter program works
properly (when I open READ and WRITE separately). Why is this?
I
thought that if the READ/WRITE MODE was used, the output reference can
be used with the Datasocket READ and Datasocket WRITE Vi's as shown in
Top Vi of picture. Instead, It seems I'm unable to "change" the state
of the Datasocket tag using the the Top Vi.
FYI: I'm using
DS server manager to create the item. I've also gave proper privileges
to each computer so that they can communicate with the DS server. It
obviously works since using the bottom VI, I get the desired results.
What am i doing wrong? Are my expectations for the Rea/dWrite functionality correct?
Message Edited by RegisPhilbin on 07-15-2005 11:11 AM -
Hot Data Block with concurrent read and write
Hi,
This is from ADDM Report.
FINDING 8: 2% impact (159 seconds)
A hot data block with concurrent read and write activity was found. The block
belongs to segment "SIEBEL.S_SRM_REQUEST" and is block 8138 in file 7.
RECOMMENDATION 1: Application Analysis, 2% benefit (159 seconds)
ACTION: Investigate application logic to find the cause of high
concurrent read and write activity to the data present in this block.
RELEVANT OBJECT: database block with object# 73759, file# 7 and
block# 8138
RATIONALE: The SQL statement with SQL_ID "f1dhpm6pnmmzq" spent
significant time on "buffer busy" waits for the hot block.
RELEVANT OBJECT: SQL statement with SQL_ID f1dhpm6pnmmzq
DELETE FROM SIEBEL.S_SRM_REQUEST WHERE ROW_ID = :B1
RECOMMENDATION 2: Schema, 2% benefit (159 seconds)
ACTION: Consider rebuilding the TABLE "SIEBEL.S_SRM_REQUEST" with object
id 73759 using a higher value for PCTFREE.
RELEVANT OBJECT: database object with id 73759
SYMPTOMS THAT LED TO THE FINDING:
SYMPTOM: Wait class "Concurrency" was consuming significant database
time. (4% impact [322 seconds])
what does it mean by hot block with concurrent read and write??
is rebuilding the table solves the problem as per addm report?Hi,
You must suffer from buffer busy waits.
When a buffer is updated, the buffer will be latched, and other sessions can not read it or write it.
You must have multiple sessions reading and writing that one block.
Recommendation 2 results in fewer records per block, so less chance multiple sessions are modifying and reading 1 block. It will also result in a bigger table.
The recommendation doesn't make sense for tablespaces with segment storage management auto, as for those tablespaces pctfree does not apply.
Buffer busy waits will also occur if the blocksize of your database is set too high.
Sybrand Bakker
Senior Oracle DBA
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