Prob.. in the increasing of sring values..

Question

i have the following query which insert Voucher No. that is string like that BP0101001..
when i insert voucher no it select maximum voucher no. from database and then increase the voucher no by 1..i.e. its incresing the voucher no..automatically by taking voucher no from the database..
It increases like that...
BP0101001
BP0101002
BP0101003
BP0101004
but its coming error of:
Exception:[Oracle][ODBC][Ora]ORA-01401: inserted value too large for column
as i have already checked the insertion of all the vales size..its with in the size of database..
is there an prob.. in my following query..
plz.. make my query working for me...
Statement stmt=conn.createStatement();
stmt.execute("SELECT max(vou_no) as max_id FROM pay_header ");
results = stmt.getResultSet();
if(results.next())
Voucher_No=results.getString("max_id") + 1;
conn.setAutoCommit(false);
PreparedStatement pstmt = conn.prepareStatement(
("INSERT INTO pay_header VALUES (?)"));
pstmt.setString(1,Voucher_No);
pstmt.executeUpdate();
conn.commit();
conn.setAutoCommit(true);

Answer 1

You store the voucher nos as String, dont u ?
if(results.next())
Voucher_No=results.getString("max_id") + 1;
}if the current value is say BP1001 , then the above will return BP10011 and not BP1002 as you expect.
ram.
Note:Next time, pls put ur code between code tags