Preparedstatement problem in oracle jdbc 10.1.0, 10.2.0

Question

Hello,
Im using oracle jdbc to connect oracle9.0.1.0.1
i have a table like
id-NUMBER
RESULT-VARCHAR2(100)
E_DATE-DATE
STATE-VARCHAR2(1)
when i write the code like
"update TBMIS_AUDIT_ISSUE_PROJECT set RESULT=? , E_DATE=?      where PROJ_ID=? and ISSUE_NO=?"
pstmt.setstring(1, "Test");using preparedstatement, the result column will not be updated correct(ex:%|st).
but if i change the order of columns like:
"update TBMIS_AUDIT_ISSUE_PROJECT set E_DATE=?  RESULT=?   where PROJ_ID=? and ISSUE_NO=?"
pstmt.setstring(2, "Test");it will be correct.
when i put the column which type is VARCHAR2 in the first place like:
"update TBMIS_AUDIT_ISSUE_PROJECT set STATE=?, E_DATE=?  RESULT=?   where PROJ_ID=? and ISSUE_NO=?"
pstmt.setstring(1, "1");the same, the state column will not be updated correct(ex:%)
but result column will be correct
looks something wrong in preparedstatement at jdbc 10.1.0 or 10.2.0
it works well when the driver is jdbc 8.1.7(classes12.zip)
or working without preparedstatement
so. is it the bug? or something i missed
thanks

Answer 1

and..
it happened when
VARCHAR2( size ) less then 1829
when varchar2 ( size > 1829)
it doen not happend..
my table scheme like this
create table TBMIS_AUDIT  (
   ID                   NUMBER(10)                     not null,
   S_DATE               DATE,
   E_DATE               DATE,
   NOTE                 VARCHAR2(200),
   STATUS             VARCHAR2(1)
);my code is
String sql = "update TBMIS_AUDIT set  NOTE=? , S_DATE=?"
                + ",  STATUS=? where ISSUE_NO=?";
PreparedStatement pstmt = con.prepareStatement(sql);
pstmt.setString(1, "ok!!");
pstmt.setTimestamp(2, new Timestamp(System.currentTimeMillis()));
pstmt.setString(3, "1");
pstmt.setString(4, "1");the note column will be filled with some wrong character
if NOTE is VARCHAR2(2000), it works well again..
or changing E_DATE to Timestamp in oracle