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jdbc application update sql isnt working for me, any ideas

public void Update(String name, String mobile, String email, String car, String model, String year, String color, String plate_no, String plateletters,String gear, String km, String date,String licesnse,String status, String notes){
Connection conn = null;
try{
conn = DriverManager.getConnection(CONN_STRING, USERNAME, PASSWORD);
System.out.println("connected");
Statement stmt = (Statement) conn.createStatement();
String ins = "update car"
+ "set Name = '"+name+"' , "
+ "Email = '"+email+"' , "
+ "Car = '"+car+"' , "
+ "Model = '"+model+"' , "
+ "Year = '"+year+"' , "
+ "Color = '"+color+"' , "
+ "Plateno = '"+plate_no+"' , "
+ "Plateletters = '"+plateletters+"' , "
+ "Gearbox = '"+gear+"' , "
+ "Km = '"+km+"' , "
+ "Date = '"+date+"' , "
+ "License = '"+licesnse+"' , "
+ "Status = '"+status+"' , "
+ "Notes = '"+notes+"' "
+ "where Mobile = '"+mobile+"' ";
stmt.execute(ins);
}catch(SQLException e){
JOptionPane.showMessageDialog(null, e.getMessage());
System.err.println(e);
return;
}
}
**i have tried prepared statment and stmt.executeUpdate(ins); but nothing workes !!
Please help!**
the error :
java.sql.SQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '= 'ahmed' , Email = 'ahmed#hotmail.com' , Car = 'honda' , Model = 'hondaz' , Yea' at line 1

You need to make sure you add proper space between elements in your SQL query:
String ins = "update car"
should be
String ins = "update car "
A good approach to doing this is to write and execute your SQL in your database query tool (SQL developer, phpMyAdmin, whatever) and make sure your syntax is good before trying to re-write it in Java.

Use a preparedStatement instaed of a Statement.
Connection conn = null;
try{
conn = DriverManager.getConnection(CONN_STRING, USERNAME, PASSWORD);
PreparedStatement pstm = conn.prepareStatement(
"update car "
+ "set Name = ? ,"
+ "Email = ? ,"
+ "Car = ? ,"
+ "Model = ? ,"
+ "Year = ? ,"
+ "Color = ? ,"
+ "Plateno = ? ,"
+ "Plateletters = ? ,"
+ "Gearbox = ? ,"
+ "Km = ?,"
+ "Date = ?,"
+ "License = ?, "
+ "Status = ?, "
+ "Notes = ? "
+ "where mobile = ?"
);
pstm.setObject(1, name);
pstm.setObject(2, email);
pstm.setObject(3, car);
pstm.setObject(4, model);
pstm.setObject(5, year);
pstm.setObject(6, color);
pstm.setObject(7, plate_no);
pstm.setObject(8, plateletters);
pstm.setObject(9, gear);
pstm.setObject(10, km);
pstm.setObject(11, date);
pstm.setObject(12, licesnse);
pstm.setObject(13, status);
pstm.setObject(14, notes);
pstm.setObject(15, mobile);
pstm.executeUpdate();
}catch(SQLException e){
e.printStackTrace();
}

sql Command has not properly ended

I'm using sql developer and netbeans when ever i try to insert data into the table this error "sql Command has not properly ended".
This is what i tried.
private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {
dbconnection db = new dbconnection();
try {
db.connect();
db.stm = db.con.createStatement();
int result = db.stm.executeUpdate(
"insert into payment values'" + txt_paymentid.getText() + "','" + txt_reservation.getText() +"',
" + "'"+txt_fname.getText()+"',
'"+txt_lname.getText()+"' ,'"+txt_roomid.getText()+"' ,'"+txt_rate.getText()+"' ," + " '"+((JTextField)txt_datein.getDateEditor().getUiComponent()).getText()+"' ,"
+ "'"
((JTextField
)txt_dateout.getDateEditor().getUiComponent()).getText() + "'," + "'" + txt_days.getText() + "','" + txt_payment.getText() + "','" + txt_balance.getText() + "'"
);
if (result > 0) {
JOptionPane.showMessageDialog(this, "Data has been saved succesfully");
} else {
JOptionPane.showMessageDialog(this, "no data has been saved");
}
} catch (SQLException e) {
JOptionPane.showMessageDialog(this, e.toString());
}
}

For a start
The sql should be in the ()
executeUpdate()("insert...
->
executeUpdate("insert...)
second it looks like the insert command itself it not valid
insert into table values (' ....

android sql update not working

This is how the table and row look like :
public static final String DATABASE_CREATE = "CREATE TABLE " + TABLE_NAME +
"(" + COLUMN_ID + " integer primary key autoincrement, " + COLUMN_INSTANT +
" TINYINT not null, " + COLUMN_CHANCE + " int not null);";
public static final String TABLE_INSERT = "INSERT INTO " + TABLE_NAME + " (" +
COLUMN_ID+"," + COLUMN_INSTANT +","+ COLUMN_CHANCE
+") VALUES (" +
"1," + "0," + "10"
+");";
And this is how I try to update them :
try {
open();
ContentValues values = new ContentValues();
values.put(column_name, value);
database.beginTransaction();
database.update(MySQLiteHelper.TABLE_NAME, values, MySQLiteHelper.COLUMN_ID + " = " + whereClause,null);
database.setTransactionSuccessful();
} catch (SQLException e) {
e.printStackTrace();
} finally {
database.endTransaction();
}
close();
The previous code would be equal to this query :
UPDATE options SET instant = 0 WHERE _id = 1
But the change is never applied. I check the table before and after the update but the values are the same, can anyone suggest anything?

You can make method to update...here is an example, change column name accordingly.
public int updateDetail(String new_name,String surname) {
ContentValues values = new ContentValues();
values.put("name", new_name);
return Db.update(TABLE_NAME ,values, SURNAME +"=?",new String[]{surname});
}

SQLite java.lang.NullPointerException in only select query

i added sqlite-jdbc-3.7.2.jar to build path. I used insert query. when i opened the wellec.db with notepad, i can see records. But my select is not working.
HERE WellInfo class properties
public Integer wellID;
public Integer measurement;
public String wellname;
public Integer wellstatus;
public String licenseno;
public String gl;
public String kb;
public String spuddate;
public String drillingenddate;
public String totaldepth;
public String notes;
public String easting;
public String northing;
public String coordinatesystem;
public Integer islogadd;
here is my createtable sql
Class.forName("org.sqlite.JDBC");
c = DriverManager.getConnection("jdbc:sqlite:wellec.db");
c.setAutoCommit(false);
System.out.println("Opened database successfully");
stmt = c.createStatement();
String sql = "CREATE TABLE IF NOT EXISTS WELLINFO " +
"(ID INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL ," +
" WELLNAME CHAR(90) NOT NULL, " +
" WELLSTATUS INT NOT NULL," +
" MEASUREMENT INT NOT NULL," +
" ISLOGADD INT NOT NULL," +
" GL CHAR(50) NOT NULL, " +
" KB CHAR(50) NOT NULL, " +
" SPUDDATE CHAR(50) NOT NULL, " +
" TOTALDEPTH CHAR(50) NOT NULL, " +
" LICENSENO CHAR(50) NOT NULL, " +
" DRILLINGENDDATE CHAR(50) NOT NULL, " +
" NOTES CHAR(150) NOT NULL, " +
" EASTING CHAR(50) NOT NULL, " +
" NORTHING CHAR(50) NOT NULL, " +
" COORDINATESYSTEM CHAR(50) NOT NULL)";
stmt.executeUpdate(sql);
...//other tables sql and stmt.executeUpdate(sql)
stmt.close();
c.commit();
here is my insert query which is working. WellInfo wi as parameter
Connection c = null;
Statement stmt = null;
try {
Class.forName("org.sqlite.JDBC");
c = DriverManager.getConnection("jdbc:sqlite:wellec.db");
c.setAutoCommit(false);
System.out.println("Opened database successfully");
stmt = c.createStatement();
String sql = "INSERT INTO WELLINFO " +
"(ID, WELLNAME, WELLSTATUS , MEASUREMENT, ISLOGADD , GL, KB, SPUDDATE, TOTALDEPTH, " +
"LICENSENO , DRILLINGENDDATE, NOTES, EASTING, NORTHING, COORDINATESYSTEM) " +
"VALUES (NULL,'" + wi.wellname + "'," + wi.wellstatus + "," + wi.measurement + "," +
"" + wi.islogadd +",'" + wi.gl + "','" + wi.kb + "','" + wi.spuddate + "'," +
"'" + wi.totaldepth + "','" + wi.licenseno + "','" + wi.drillingenddate + "', " +
"'" + wi.notes + "','" + wi.easting + "','" + wi.northing + "','" + wi.coordinatesystem + "');";
stmt.executeUpdate(sql);
stmt.close();
c.commit();
} catch ( Exception e ) {
System.err.println( e.getClass().getName() + ": " + e.getMessage() );
System.exit(0);
}
System.out.println("Records created successfully");
return 0;
here is my select
Connection c = null;
Statement stmt = null;
WellInfo[] wi = new WellInfo[60000];
WellInfo[] wi2 = new WellInfo[0];
int i = 0;
try {
Class.forName("org.sqlite.JDBC");
c = DriverManager.getConnection("jdbc:sqlite:wellec.db");
//c.setAutoCommit(false);
System.out.println("Opened database successfully");
stmt = c.createStatement();
ResultSet rs = stmt.executeQuery("select * from WELLINFO");
//c.commit();
//if(rs.getRow() > 0)
while ( rs.next() ) { //HERE IS THE PROBLEM
wi[i].wellID = rs.getInt("ID");
i++;
}
wi2 = new WellInfo[i];
for(int j = 0; j < i - 1; j++){
wi2[j] = wi[j];
}
rs.close();
stmt.close();
return wi2;
} catch ( Exception e ) {
System.err.println( e.getClass().getName() + ": " + e.getMessage() );
System.exit(0);
}
System.out.println("Operation done successfully");
return wi2;
Sorry not specify the problem. Here it is:
SELECT QUERY problem when i call rs.next(), i got the error java.lang.NullPointerException.

wi[i] is null => you can't call wi[i].wellID before you instantiate wi[i], you should do something like
wi[i] = new WellInfo() then call wi[i].wellID

MySQLSyntaxErrorException: Unknown column ' ____ ' in 'field list'

I get the following MySQL exception:
com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Unknown column 'book.call_Number' in 'field list'.
What does that mean and how can I solve it?
Here is the code responsible for this exception:
public void actionPerformed(ActionEvent e) {
list.clearSelection();
String selectString = " ";
String afName = auth_fName.getText();
String aMI = auth_MI.getText();
String alName = auth_lName.getText();
String tField = titleField.getText();
String sField = subjectField.getText();
try {
Connection conn = Database.getConnection();
Statement s = conn.createStatement();
if (!afName.equals("") && (!aMI.equals("")) && (!alName.equals("")) && (!tField.equals("")) && (!sField.equals(""))) {
selectString = "SELECT a.call_Number as callNbr "
+ "FROM book a "
+ "FULL JOIN transaction b "
+ "ON a.call_Number=b.call_Number";
}
s = conn.createStatement();
System.out.println(selectString);
ResultSet rs = s.executeQuery(selectString);
while (rs.next()) {
String call_Num = rs.getString("call_Number");
String title = rs.getString("title");
String auth_lName = rs.getString("auth_lName");
String auth_MI = rs.getString ("auth_MI");
String auth_fName = rs.getString("auth_fName");
String availability = rs.getString("availability");
view = new View(call_Num, title, auth_lName, auth_MI, auth_fName, availability);
vList.add(view);
System.out.println(view);
}
rs.close();
s.close();
conn.close();
list.setListData(vList.toArray());
} catch (Exception ex) {
ex.printStackTrace();
}
}
Here is the DDL and content:
s.executeUpdate (
"CREATE TABLE book ("
+ "call_Number CHAR(10),"
+ "PRIMARY KEY (call_Number),"
+ "auth_fName CHAR(30)NOT NULL, auth_MI CHAR(2),"
+ "auth_lName CHAR(50)NOT NULL, title CHAR(100) NOT NULL,"
+ "subject CHAR(30) NOT NULL)");
count = s.executeUpdate (
"INSERT INTO book"
+ " VALUES"
+ "('MY.111.000', 'Mark', 'M','Bradshaw','Mystery Under the Sun','mystery'),"
+ "('MY.111.001', 'Mark','','Twain','The Adventures of Huckleberry Finn','mystery'),"
+ "('SF.111.002', 'Kito', 'M','Bradford','Mr. Roboto','science fiction'),"
+ "('SF.111.003', 'Eric','','Laslow','Science Fiction - Can It Happen?','science fiction'),"
+ "('AV.111.004', 'Rashad','','Cheeks','Fire Under the Bridge','adventure'),"
+ "('AV.111.005', 'Samantha','A','Appleby','The Open Sea','adventure'),"
+ "('CO.111.006', 'Lindsey', '','Butterby','What? We cant spend anymore!?','comedy'),"
+ "('CO.111.007', 'Judy', 'S','Yates','So this is life?','comedy'),"
+ "('IN.111.008', 'Elizabeth', 'J','Lee','Mystery Under the Sun','international'),"
+ "('IN.111.009', 'Gabriella', 'M','Rodriguez','Love in Brazil','international')");
*******t_action table***************************
//create transaction table
s.executeUpdate (
"CREATE TABLE t_action ("
+ "patron_ID CHAR(10) NOT NULL,"
+ "call_Number CHAR(10) NOT NULL, check_Out_Date DATE NOT NULL, check_In_Date DATE NOT NULL,"
+ "PRIMARY KEY (patron_ID, call_Number),"
+ "avail CHAR(15), total_Charge FLOAT)");
count3 = s.executeUpdate (
"INSERT INTO t_action"
+ " VALUES"
+ "('P222200000','MY.111.000','2011-03-08','2011-03-15','AVAILABLE',5.00),"
+ "('P222200001','MY.111.001','2011-03-31','2011-04-6','DUE 2011-04-6',5.00),"
+ "('P222200002','SF.111.002','2011-03-30','2011-04-5','DUE 2011-04-5',5.00),"
+ "('P222200003','SF.111.003','2011-03-29','2011-04-4','DUE 2011-04-4',5.00),"
+ "('P222200004','AV.111.004','2011-03-28','2011-04-3','DUE 2011-04-3',5.00),"
+ "('P222200005','AV.111.005','2011-03-27','2011-04-2','DUE 2011-04-2',5.00),"
+ "('P222200006','CO.111.006','2011-03-26','2011-04-1','DUE 2011-04-1',5.00),"
+ "('P222200007','CO.111.007','2011-01-06','2011-01-12','AVAILABLE',5.00),"
+ "('P222200008','IN.111.008','2011-02-06','2011-02-12','AVAILABLE',5.00),"
+ "('P222200009','IN.111.009','2011-03-06','2011-03-12','AVAILABLE',5.00)");

Use a <column> as predicate like below:-
selectString = "SELECT a.call_Number as callNbr, ... "
+ "FROM book a"
+ "FULL JOIN transaction b"
+ "ON a.call_Number=b.call_Number";
And then change the code to look for callNbr :-
String call_Num = rs.getString("callNbr");
HTH.

Change your query to this:
selectString = "SELECT a.call_Number "
+ "FROM book a "
+ "INNER JOIN transaction b "
+ "ON a.call_Number=b.call_Number";
MySQL does not support FULL OUTER JOIN. If you really need the effect of that - you'll need 2 selects with a UNION. Although from looks of it - does not seem like that would be necessary.