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SQL executeUpdate() seems to commit data, but that is not the case. How can I find my error?

I curently work on few SQL queries (MSSQL 2O14), but only "SELECT" query works with executeQuery().
I had use execute() and executeUpdate() on "INSERT INTO" and "UPDATE" queries, but whereas it looks like working, no way.
FYI, in "UPDATE_PREVIOUS_H_LOT_STATUT,
int count= p.executeUpdate(); return 1. If h_lot_number is an unknown lot number, count = 0.
So, if I use wrong data in input, my query isn't executed(Until here, I agree) but when I use the expected data, the query is executed but there is no change in my DB.
How can I find where my error is ?
UPDATE Function :
public static boolean UPDATE_PREVIOUS_H_LOT_STATUT(String h_lot_number_old) {
try {
setUpConnexion("mainDB");
String baseQuery = "UPDATE valve_assembly_h SET statut = 'Expiré' WHERE h_lot_number = '" + h_lot_number_old + "'";
//PreparedStatement p = newTransact("UPDATE valve_assembly_h SET statut = 'Expiré' WHERE h_lot_number = '" + h_lot_number_old + "'", "mainDB");
PreparedStatement toReturn = (PreparedStatement) mainCon.prepareStatement(baseQuery);
int count = toReturn.executeUpdate();
if (count > 0) {
Log.d("Sucess : ", "Previous h_lot updated.");
closeCons();
return true;
} else {
Log.e("Error : ", "No lot found with this number.");
closeCons();
return false;
}
} catch (SQLException e) {
error = e.getMessage();
Log.e("Error :", error);
closeCons();
return false;
}
}
LOAD PREVIOUS NUMBER FUNCTION (works perfectly)
public static String LOAD_PREVIOUS_H_LOT_NUMBER(String machineNumber) {
String s = "";
try {
setUpConnexion("mainDB");
ResultSet RS = executeQuery("SELECT h_lot_number FROM valve_assembly_h WHERE machine_number = '" + machineNumber + "' AND statut = 'Actif'", "mainDB");
while (RS.next()) {
s = RS.getString(1);
Log.d("Success : ", "Lot number : " + s);
}
closeResultSet(RS);
} catch (Exception e) {
error = e.getMessage();
Log.e("Error :", error);
s = error;
}
closeCons();
return s;
}
Set up connection function : (works perfectly)
public static boolean setUpConnexion(String DBNAME) {
StrictMode.ThreadPolicy policy;
policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
StrictMode.setThreadPolicy(policy);
String connectURL;
try {
CONNECTION MS SQL SERVER
}
return true;
} catch (Exception e) {
System.out.println("SQL ERROR: " + e.getMessage());
e.printStackTrace();
return false;
}
}

Try to commit the transaction manually through the Connection object ,hope it helps.

How to extract specific information from the selected item in a JComboBox?

I have a form that has a ComboBox which it gets its items from a database. The combobox takes numerous column-items from a table inside the database.
I want to take only one of these items (from the combobox) and copy it to a JTextField.
Here's the code of the creation of the ComboBox in the Order.java file:
cbinv = new JComboBox<>();
cbinv.setModel(new InvComboModel(con));
and the code from the InvComboModel.java:
public InvComboModel(Connection con) {
try {
stmt = con.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE,
ResultSet.CONCUR_UPDATABLE);
String query = "SELECT * FROM inventory";
rs = stmt.executeQuery(query);
} catch (SQLException e) {
System.out.println("InvComboModel: " + e.getMessage());
}
}
#Override
public String getElementAt(int index) {
String lstn = null;
try {
rs.absolute(index + 1);
lstn = rs.getString("category") + ", " + rs.getString("description") + ", "
+ rs.getInt("price") + ", " + rs.getInt("quantity");
} catch (SQLException e) {
System.out.println("getElementAt(): " + e.getMessage());
}
return lstn;
}
#Override
public int getSize() {
int cnt = 0;
try {
rs.last();
cnt = rs.getRow();
} catch (SQLException ex) {
System.out.println("getSize(): " + ex.getMessage());
}
return cnt;
}
public int getIdInvAt(int index) {
int idInv = 0;
try {
rs.absolute(index + 1);
idInv = rs.getInt("idinv");
} catch (SQLException e) {
System.out.println("getElementAt(): " + e.getMessage());
}
return idInv;
}
So, I want when I select something on the Inventory Item to take the third value (which in this case is 500, example image) and copy it to the JTextField of the ItemPrice.
[example][1]: https://i.stack.imgur.com/BWQVw.jpg
In the Order.java file I have the following command but it copies all the selected item in the combobox:
tip.setText((String) cbinv.getSelectedItem());
and when I use the following command it takes the whole line again. It seems that I can't use any other method from the InvComboModel.java file
tip.setText((String) cbinv.getModel().getElementAt());
Thanks in advance.

How to only execute database updates at the end of a while cycle

How can I only make my application execute the changes to a database at the end of the while cycle?
I have this rollback method but I only the changes to be made to the database at the end of it because of inconsistent data handling
I have tried to set auto commit to false but even though the exception was thrown at the second iteration of the while cycle, the changes were still in the database(until the point before the interruption, the tables after that didn't suffer changes).
Am I doing something wrong?
#Override
public void rollback(Database database) throws CustomChangeException {
JdbcConnection connection = (JdbcConnection) database.getConnection();
try {
connection.setAutoCommit(false);
ResultSet rs = getTables(connection);
//if the user chose to use a suffix
if (this.getSuffix() != null) {
while (rs.next()) {
String tableName = rs.getString(3);
if (tableName.endsWith(this.getSuffix())) {
if (!checkColumnsExists(connection, tableName, newName)) {
throw new CustomChangeException("The column " + newName + " doesn't exist in the table " + tableName + " anymore.Please fix this");
}
PreparedStatement s = connection.prepareStatement(getRollbackQuery(tableName));
s.executeUpdate();
logger.info("Column name reversed to " + this.getColumnName() + " in table" + tableName);
}
}
}
//if the user chose to use a regex
if (this.getRegex() != null) {
Pattern pattern = Pattern.compile(this.getRegex());
while (rs.next()) {
String tableName = rs.getString(3);
Matcher matcher = pattern.matcher(tableName);
boolean matches = matcher.matches();
if (matches) {
if (!checkColumnsExists(connection, tableName, newName)) {
logger.error("The column " + newName + " doesn't exist in the table " + tableName + " anymore.Please fix this");
throw new CustomChangeException();
}
PreparedStatement s = connection.prepareStatement(getRollbackQuery(tableName));
s.executeUpdate();
logger.info("Column name reversed to " + this.getColumnName() + " in table" + tableName);
}
}
}
connection.commit();
} catch (SQLException | DatabaseException | DifferentDataTypeException e) {
logger.error(e.getMessage());
throw new CustomChangeException();
}
}

statement.executeQuery returning resultset with no rows

My problem is that when I fire a query directly into Oracle, it returns me the rows with proper data. But when I try to fire the same query via Statement, its fetching me a resultset with no rows.
My code is as follows :
public void sendSMStoMobile() {
if (smsGatewayStatus.equals("STOPPED")) {
stringBuilder.append("The control is returning" + "\n");
jTextArea1.setText(stringBuilder.toString());
return;
}
DBCP dbcp = DBCP.getInstance(database_url, username, password);
Connection connection = null;
Statement statement = null;
try {
connection = dbcp.getConnection();
statement = connection.createStatement();
} catch (SQLException ex) {
Logger.getLogger(Send_SMS_Form.class.getName()).log(Level.SEVERE, null, ex);
System.out.println("Message : " + ex.getMessage());
} catch (InterruptedException ex) {
Logger.getLogger(Send_SMS_Form.class.getName()).log(Level.SEVERE, null, ex);
System.out.println("Message : " + ex.getMessage());
}
ResultSet resultSet = null;
try {
sql = new StringBuffer();
sql.append("SELECT SMS_ID, MOBILE_NO, SMS_CONTENT ");
sql.append("FROM SMSDATA.SMS_DATA ");
//sql.append("WHERE SENT_STATUS = 'N' AND Message_Code IN('LOANREPAY') " );
//sql.append("WHERE SENT_STATUS = 'N' AND Message_Code IN('SPECIAL') " );
sql.append("WHERE SENT_STATUS = 'N' ");
//sql.append("WHERE tranum <= (select max(tranum) -25 from smsgtway.sms_all_tran where SENT_STATUS = 'N' AND Message_Code IN('MEMDEP','MEMGRANT','SAMGRANT')) and SENT_STATUS = 'N' AND Message_Code IN('MEMDEP','MEMGRANT','SAMGRANT') " );
sql.append("ORDER BY SMS_ID desc ");
// sql.append("ORDER BY SENT_TIMSTAMP " );
// For Test
//sql.append("SELECT customer_Code,MOBILE_NO, SMS_CONTENT,SMS_ID " );
//sql.append("FROM MB_SMS_DTL ");
//sql.append("WHERE SENT_STATUS = 'N' ");
//sql.append("ORDER BY SMS_ID " );
// End Test
resultSet = statement.executeQuery(sql.toString());
System.out.println("Code comes here");
/* if(!resultSet.next()){
stringBuilder.append("No Data Found" +"\n");
jTextArea1.setText(stringBuilder.toString());
} */
if (!resultSet.next()) {
System.out.println("no data");
} else {
System.out.println("Data Found...");
do {
//statement(s)
} while (resultSet.next());
}
while (resultSet.next()) {
System.out.println("Data Found...");
String smsId = resultSet.getString(1);
String destMobileNo = resultSet.getString(2);
String message = resultSet.getString(3);
OutboundMessage sms = new OutboundMessage(destMobileNo, message);
System.out.println("Code comes here" + smsId);
//System.out.println("sms = " + sms);
try {
Service.getInstance().sendMessage(sms);
} catch (TimeoutException timeoutException) {
System.out.println("1");
stringBuilder.append("Exception : " + timeoutException.getMessage() + "\n");
jTextArea1.setText(stringBuilder.toString());
} catch (GatewayException gatewayException) {
System.out.println("2");
stringBuilder.append("Exception : " + gatewayException.getMessage() + "\n");
jTextArea1.setText(stringBuilder.toString());
} catch (IOException iOException) {
System.out.println("3");
stringBuilder.append("Exception : " + iOException.getMessage() + "\n");
jTextArea1.setText(stringBuilder.toString());
} catch (InterruptedException interruptedException) {
System.out.println("4");
stringBuilder.append("Exception : " + interruptedException.getMessage() + "\n");
jTextArea1.setText(stringBuilder.toString());
} catch (java.lang.StringIndexOutOfBoundsException siobe) {
System.out.println("5");
stringBuilder.append("Exception : " + siobe.getMessage() + "\n");
jTextArea1.setText(stringBuilder.toString());
}
//Update Table After Send Message
String updateQuery = "UPDATE SMSDATA.SMS_DATA SET SENT_STATUS = 'Y', SENT_DATE = sysdate WHERE SMS_ID = " + smsId;
//String updateQuery = "UPDATE MB_SMS_DTL SET SENT_STATUS = 'Y' WHERE SMS_ID = " + tranNumber ;
//System.out.println("Update Query: " + updateQuery);
if (i < 10) {
System.out.print(smsId + ": Y, ");
}
if (i == 10) {
System.out.print(smsId + ": Y, " + "\n");
i = 0;
}
statement.executeUpdate(updateQuery);
connection.commit();
i = i + 1;
}
} catch (Exception e) {
System.out.println("Message: " + e.getMessage());
System.out.println("Cause: " + e.getCause());
stringBuilder.append("Message: " + e.getMessage() + "\n");
stringBuilder.append("Cause: " + e.getCause() + "\n");
jTextArea1.setText(stringBuilder.toString());
e.printStackTrace();
} finally {
if (resultSet != null) {
try {
resultSet.close();
} catch (SQLException ex) {
Logger.getLogger(Send_SMS_Form.class.getName()).log(Level.SEVERE, null, ex);
}
}
if (statement != null) {
try {
statement.close();
} catch (SQLException ex) {
Logger.getLogger(Send_SMS_Form.class.getName()).log(Level.SEVERE, null, ex);
}
}
dbcp.releaseConnection(connection);
//Service.getInstance().stopService();
}
}
When I call this function , "no data" is printed in Console . The sql is correct . When I run the sql in Toad , I have found 2 rows .
Please help me .

CSV into MySQL Database

i have the following snippet:
String insertSql = "LOAD DATA INFILE 'C:/thomsonReuters/compressed/premium-world-check-day.csv'"
+ " INTO TABLE thomsenreuters.worldcheck "
+ " FIELDS TERMINATED BY '\t' "
+ " ENCLOSED BY '\"' "
+ " LINES TERMINATED BY '\r\n' "
+ " IGNORE 1 ROWS;";
This file has 4567 total rows. The fields are terminated by a tab and enclosed by double quotes. I try to insert the csv file by a Prepared-Update stmt. But Java only insert the first 4 rows into MySQL. What is the misstake i've done?
Thanks for help
EDIT
Full Class Code:
Connection con = null;
PreparedStatement stmt = null;
String truncateTable = "Truncate table thomsenreuters.worldcheck;";
String insertSql = "LOAD DATA INFILE 'C:/thomsonReuters/compressed/premium-world-check-day.csv'"
+ " INTO TABLE thomsenreuters.worldcheck "
+ " FIELDS TERMINATED BY '\t' "
+ " ENCLOSED BY '\"' "
+ " LINES TERMINATED BY '\r\n' "
+ " IGNORE 1 ROWS;";
try {
Class.forName("com.mysql.jdbc.Driver");
} catch (ClassNotFoundException e) {
e.printStackTrace();
}
System.out.println("Driver was found");
try {
con = DriverManager.getConnection("jdbc:mysql://localhost:3306/thomsenreuters","XXXXXXX","XXXXXXX");
} catch (SQLException e) {
e.printStackTrace();
}
System.out.println("Connection to Database");
System.out.println("Start insert...");
try {
con.setAutoCommit(false);
stmt = con.prepareStatement(truncateTable);
stmt = con.prepareStatement(insertSql);
int total = stmt.executeUpdate();
con.commit();
con.setAutoCommit(true);
System.out.println("Total Rows insert " + total);
} catch (SQLException e) {
e.printStackTrace();
}
finally{
if(stmt != null)
{
try {
stmt.close();
} catch (SQLException e) {
e.printStackTrace();
}
}
if(con != null)
{
try {
con.close();
} catch (SQLException e) {
e.printStackTrace();
}
}
}
}