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Java prepared statement get generated keys do not work in DB2 but work in mySQL?

I have a very simple table that is in both MySQL and DB2 called STUDENT. The columns are: ID (primary key, auto incrementing), FIRST_NAME, LAST_NAME, AGE.
The table is replicated in both databases, so they should be the same syntactically. However, I have spent the entire day trying to figure out why, when I write a simple Java program to insert into the database, the MySQL version returns back the generated key via PreparedStatement.getGeneratedKeys(), while the DB2 version does not return anything.
My code looks like:
String sql = "INSERT INTO STUDENT (FIRST_NAME, LAST_NAME, AGE) VALUES ('Jacob', 'Eldy', 19)"
final Connection connection = getConnection(dataSource.get());
int[] insertedRows = null;
ResultSet rs = null;
PreparedStatement ps = null;
try {
ps = connection.prepareStatement(sql, Statement.RETURN_GENERATED_KEYS);
ps.addBatch();
insertedRows = ps.executeBatch();
rs = ps.getGeneratedKeys();
while(rs.next()) {
LOGGER.info(rs.getString(1));
}
connection.commit();
} catch (Exception e) {
try {
connection.rollback();
} catch (SQLException e) {
e.printStackTrace();
}
} finally {
close(ps, connection);
}
After committing the connection for both databases DB2 and MySQL, both actually show the row being inserted, and the more I insert, a new row appears with an auto incremented ID, however only the MySQL database has a value in while(rs.next()), the DB2 version just skips over it since it is empty.
Am I doing something wrong? Is this just an incompatibility issue with DB2 and it just does not return the generated value? If so, what would be the best solution for tackling this issue?
UPDATE, adding the two DDLs for DB2 & mySQL:
mySQL DDL:
CREATE TABLE 'STUDENT'
...
`ID` int NOT NULL AUTO_INCREMENT
PRIMARY KEY('ID')
AUTO_INCREMENT=19073
DB2 DDL:
CREATE TABLE STUDENT
(
ID INTEGER DEFAULT IDENTITY GENERATED ALWAYS NOT NULL
PRIMARY KEY (ID)
)

CREATE TABLE STUDENT
(
ID INT NOT NULL GENERATED BY DEFAULT AS IDENTITY PRIMARY KEY
, FIRST_NAME VARCHAR (20)
, LAST_NAME VARCHAR (20)
, AGE SMALLINT
);
The following code based on the Making batch updates in JDBC applications links (this one is for Db2 for LUW) provided by others works as expected with the table definition above:
PreparedStatement ps = con.prepareStatement
(
"INSERT INTO STUDENT (FIRST_NAME, LAST_NAME, AGE) " +
"VALUES (?,?,?)"
, Statement.RETURN_GENERATED_KEYS
);
ps.setString (1, "Jacob");
ps.setString (2, "Eldy");
ps.setShort (3, (short) 19);
ps.addBatch();
ps.setString (1, "Jacob");
ps.setString (2, "Eldy");
ps.setShort (3, (short) 19);
ps.addBatch();
int [] numUpdates = ps.executeBatch();
for (int i=0; i < numUpdates.length; i++)
if (numUpdates[i] == Statement.SUCCESS_NO_INFO)
System.out.println("Execution " + i + ": unknown number of rows updated");
else
System.out.println("Execution " + i + " successful: " + numUpdates[i] + " rows updated");
ResultSet[] resultList = ((com.ibm.db2.jcc.DB2PreparedStatement) ps).getDBGeneratedKeys();
if (resultList.length != 0)
for (int i = 0; i < resultList.length; i++)
{
while (resultList[i].next())
System.out.println("Automatically generated key value = " + resultList[i].getBigDecimal(1));
resultList[i].close();
}
else
System.out.println("Error retrieving automatically generated keys");

Am I doing something wrong? Is this just an incompatibility issue with DB2 and it just does not return the generated value? If so, what would be the best solution for tackling this issue?
Yes, you are doing wrong. It's not incompatibility issue, and it's not an issue. DB2 is different than MySQL. You can't handle both because you have incompatible DDL. Since no records are inserted into DB2 the value of the key is not available.
The solution to the issue is to create a trigger on insert a record to make sure the primary key is inserted into DB. If you are missing a key then select it from the sequence and substitute the value.
Now if identity is generated into DB2 like this
CREATE TABLE STUDENT
(
ID INTEGER DEFAULT IDENTITY GENERATED ALWAYS NOT NULL
PRIMARY KEY (ID)
)
So it will always return getGeneratedKeys().

How to automatically insert date and time into sql table

I've created a table name EventLog7 in SQL Server 2008 :
create table EventLog7(
EventId int not null identity(1,1),
EventDate datetimeconstraint DF_myDate DEFAULT (getdate()),
ObjectId varchar(50),
Name varchar(50),
Value varchar (50)
)
In NetBeans, there are three jtextfields which help to insert data into EventLog SQL Table (ObjectId, Name, Value) when I press the button.
Mentioned below action button code:
String objectid=jTextField1.getText();
String value=jTextField2.getText();
String name=jTextField3.getText();
try{
DoConnect();
st=conn.createStatement();
String sql = "insert into EventLog7 values('"+objectid+"','"+name+"','"+value+"')";
pst = conn.prepareStatement(sql);
pst.execute();
rs=st.executeQuery("select * from EventLog7");
jTable1.setModel(net.proteanit.sql.DbUtils.resultSetToTableModel(rs));
}
catch(Exception e){
JOptionPane.showMessageDialog(null,e);
}
So, i want that when I insert values of ObjectId,Name,Value in three jtextfiles then Sql table will insert automatically date and time with these data.
But according to my code, it's showing error
Column names or number of supplied values does not match table definition
So please provide me right way.

String sql = "insert into EventLog7 values('"+objectid+"','"+name+"','"+value+"')";
line will be
String sql = "insert into EventLog7(ObjectId, Name, Value, EventDate) values('"+objectid+"','"+name+"','"+value+"',GETDATE())";
I do not know how the IDs is generated sql-server , you may need to set it as well if that is not auto assign/increment.
And I can say this is not secure, you need to use ?s instead of your variables and use set methods to set them as a_horse_with_no_name reminds. Use what I suggested only for mitigating the error you have now.

Prepared Statement Primary Key store seed 1 and increment

Okay, so I just started JDBC with derby client and I'm kind of new with it.
I set column ID as primary key with int as it's data type. However, I'm not sure if I should include myStatement.setString(1, ?); because I thought it should Auto Increment but it looks like it's not doing it.
Here's my Grab file details:
create table "ADMIN1".STUDENTPERSONALDETAILS
(
ID INTEGER not null primary key,
STUDENTID VARCHAR(10) not null,
LASTNAME VARCHAR(50) not null,
FIRSTNAME VARCHAR(50) not null,
MIDDLENAME VARCHAR(50) not null,
PLACEOFBIRTH VARCHAR(200) not null,
DOB VARCHAR(50) not null,
GENDER VARCHAR(4) not null,
CIVILSTATUS VARCHAR(7) not null,
RELIGION VARCHAR(15) not null,
NATIONALITY VARCHAR(20) not null
)
How can I correct my PreparedStatement or My Table in such a way that adding of value for column ID will be automatic so that I can start setString(2, studentID) and avoid getting error about the number of columns not matching with what was supplied?
Here's my code:
addButton.addActionListener(new ActionListener () {
#Override
public void actionPerformed(ActionEvent e) {
try {
String myDbUrl = "jdbc:derby://localhost:1527/Enrollment"; //stores url to string
String userName = "admin1";
String Password = "admin1";
Connection myDBConnection = DriverManager.getConnection(myDbUrl, userName, Password);
String myQuery = "INSERT INTO STUDENTPERSONALDETAILS"
+ "(STUDENTID,LASTNAME,FIRSTNAME,MIDDLENAME,PLACEOFBIRTH,DOB,GENDER,CIVILSTATUS,RELIGION,NATIONALITY) "
+ "VALUES(?,?,?,?,?,?,?,?,?,?) ";
String adminissionNo ;
String studentID = tfStudentId.getText().toString();
String lastName = tfLastName.getText().toString();
String firstName = tfFirstName.getText().toString();
String middleName = tfMiddleName.getText().toString();
String placeOfBirth = tfPob.getText().toString();
String dateOfBirth = listDOB.getSelectedItem().toString();
String gender = listGender.getSelectedItem().toString();
String civilStatus = listCivilStatus.getSelectedItem().toString();
String religion = listReligion.getSelectedItem().toString();
String nationality = listNationality.getSelectedItem().toString();
PreparedStatement myStatement = myDBConnection.prepareStatement(myQuery);
myStatement.setString(2, lastName);
myStatement.setString(3, firstName);
myStatement.setString(4, middleName);
myStatement.setString(5, placeOfBirth);
myStatement.setString(6, dateOfBirth);
myStatement.setString(7, gender);
myStatement.setString(8, civilStatus);
myStatement.setString(9, religion);
myStatement.setString(10, nationality);
boolean insertResult = myStatement.execute();
if(insertResult == true)
JOptionPane.showMessageDialog(null, "Successfully Added Information");
else
JOptionPane.showMessageDialog(null, "Encountered an error while inserting data");
}
catch(SQLException ex) {
JOptionPane.showMessageDialog(null, ex.toString());
}
}
});
Is it necessary to include myStatement.setString(1, integervaluehere) for Primary Keys? Isn't it supposed to autoincrement?
I'd appreciate any explanation because I just started learning the basics of PreparedStatements recently.
I tried counting the columns and tried 10 and 11 lines of myStatement.setString(), but still can't get it to insert data because of mismatch.
Thanks in advance.

You need to mention 'auto increment' explicitly.
Or you can write your own java code to track the Id for each table and whenever you ask the method to give the ID it will return lastID + 1.
But, I think now you can go with auto_increment option.

If you want it to autoincrement you need to say so in the column definition, and you haven't.
I don't know what 'default 1' in your title is supposed to mean, as you haven't mentioned it in your question, but you can't have a default value and autoincrement. It doesn't make sense.
I don't know what 'store seed 1' means either, in your edit.
When you have a column with a default value you want to rely on, or autoincrement, you don't mention it at all in the INSERT statement, so there is no positional argument to set.

First, set the primary identifier column to autoincrement. Since your query already excludes the primary key, you then only have to change the PreparedStatement indexes to match the number of parameters in your query starting from one.
Since you have 10 columns in addition to the primary ID column, your PreparedStatement might look something like the following:
PreparedStatement myStatement = myDBConnection.prepareStatement(myQuery);
myStatement.setString(1, studentId);
myStatement.setString(2, lastName);
myStatement.setString(3, firstName);
myStatement.setString(4, middleName);
myStatement.setString(5, placeOfBirth);
myStatement.setString(6, dateOfBirth);
myStatement.setString(7, gender);
myStatement.setString(8, civilStatus);
myStatement.setString(9, religion);
myStatement.setString(10, nationality);
Note that you do not need to have the instruction, myStatement.setInt(1, primaryId);, once you have changed the primary key in your table to auto-increment. However, if you elect to keep the primary key as non-autoincrementing, then you must explicitly specify the primary key value and provide a parameter in your query to insert that data.

If you're using MySQL Workbench, which if you're not, I highly recommend because it just works. You have to choose Auto-Increment as a characteristic of that column. If you want your column to auto increment, when creating columns in your database, check the option Auto-Increment, sometimes written as AI.

Get inserted row to Oracle with java

I am building a java program to insert data to my oracle database.
My problem is that I need to insert into two tables, and to reach unique rows I use in TABLE_A triggers for id before insert get next val in a sequence.
But i need the same id for the TABLE_B for connection.
( i cant get getval because what if another user uses the program... )
So I need to reach somehow that when I use executeql(sql) command in return I see what I have submit.
Now I use that I have name and date, so I select the id where name and date is the just inserted.
But its not the best because in one day I can insert more names. So now this will not unique.
like :
insert into table a ( name,date) val ( 'Ryan','2014.01.01')
id here is autoincremented by sequence
than another sql run:
inert into table_b ( id,someval) val ( select id from table_a where
name ='Ryan', date='2014.01.01, 23)
so i need something like:
system.out.println(smtp.executesql(sql).whatIinsertednow())
*than console:* '1 row insered (id,name,date) : ( 1, Ryan, 2014.01.01)

PreparedStatement prepareStatement = connection.prepareStatement("insert...",
new String[] { "your_primary_key_column_name" });
prepareStatement.executeUpdate();
ResultSet generatedKeys = prepareStatement.getGeneratedKeys();
if (null != generatedKeys && generatedKeys.next()) {
Long primaryKey = generatedKeys.getLong(1);
}
I have found the answer this is perfectly works. I can insert from JAVA and its return with the key.
Full version:
CREATE TABLE STUDENTS
(
STUDENT_ID NUMBER NOT NULL PRIMARY KEY,
NAME VARCHAR2 (50 BYTE),
EMAIL VARCHAR2 (50 BYTE),
BIRTH_DATE DATE
);
CREATE SEQUENCE STUDENT_SEQ
START WITH 0
MAXVALUE 9999999999999999999999999999
MINVALUE 0;
And the Java code
String QUERY = "INSERT INTO students "+
" VALUES (student_seq.NEXTVAL,"+
" 'Harry', 'harry#hogwarts.edu', '31-July-1980')";
// load oracle driver
Class.forName("oracle.jdbc.driver.OracleDriver");
// get database connection from connection string
Connection connection = DriverManager.getConnection(
"jdbc:oracle:thin:#localhost:1521:sample", "scott", "tiger");
// prepare statement to execute insert query
// note the 2nd argument passed to prepareStatement() method
// pass name of primary key column, in this case student_id is
// generated from sequence
PreparedStatement ps = connection.prepareStatement(QUERY,
new String[] { "student_id" });
// local variable to hold auto generated student id
Long studentId = null;
// execute the insert statement, if success get the primary key value
if (ps.executeUpdate() > 0) {
// getGeneratedKeys() returns result set of keys that were auto
// generated
// in our case student_id column
ResultSet generatedKeys = ps.getGeneratedKeys();
// if resultset has data, get the primary key value
// of last inserted record
if (null != generatedKeys && generatedKeys.next()) {
// voila! we got student id which was generated from sequence
studentId = generatedKeys.getLong(1);
}
}
source : http://viralpatel.net/blogs/oracle-java-jdbc-get-primary-key-insert-sql/

You can accomplish that by using the RETURNING clause in your INSERT statement:
INSERT INTO table_a ( name,date) val ( 'Ryan','2014.01.01') RETURNING id INTO ?

Set Auto-Increment into previous value JAVA PreparedStatement MYSQL

I have 3 buttons (add, save, cancel). If I press the add button, it automatically generates an auto-incremented value and is displayed in a text field. If I press the save button, it updates the record. My problem is when I press the cancel button, I want to be able to delete the current data added and set the auto-increment key to the primary key of the deleted data. Is it possible to do this?
dc.connect();
try {
PreparedStatement st=dc.getConnection().prepareStatement("Delete from Employeemaster where empno = '" + empno.getText() + "'");
i=st.executeUpdate();
if (i>0) {
dc.getConnection().commit();
}
} catch (Exception e) {
JOptionPane msg=new JOptionPane();
msg.showMessageDialog(this,"Database Error: "+e.getMessage());
}
dc.disconnect();
dc.connect();
try {
PreparedStatement st=dc.getConnection().prepareStatement("ALTER TABLE employeemaster AUTO_INCREMENT ='" + empno.getText() + "'");
i=st.executeUpdate();
if (i>0) {
dc.getConnection().commit();
}
} catch (Exception e) {
JOptionPane msg=new JOptionPane();
msg.showMessageDialog(this,"Database Error: "+e.getMessage());
}
I tried replacing
ALTER TABLE employeemaster AUTO_INCREMENT ='" + empno.getText() + "'"
into
ALTER TABLE employeemaster AUTO_INCREMENT = 10003;
and it worked. Is it possible to set the auto-incremented value to the one contained/entered in a textfield?
Additional info:
The error I get is
"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 "10003" at line 1."

The use of single quote will cause mysql cast the auto_increment value (integer) into string, which is not desirable
Strip the single quote, like
"ALTER TABLE employeemaster AUTO_INCREMENT=" + empno.getText()
Or
cast empno.getText() into integer