CODEWITHSUNDEEP
javamysqloracle11gsyntax-error
Sayantan Chandra
Sayantan Chandra

Reputation: 79

ORA-01747: invalid user.table.column, table.column, or column specification in java

I am getting this error- ORA-01747: invalid user.table.column, table.column, or column specification

And this is my block of code-

private void updateAttendance(){
    MyQuery mq=new MyQuery();
    Connection con=mq.getConnection();
    Statement st;
    ResultSet rs;
    try{
        st=con.createStatement();
        rs=st.executeQuery("Select STU_ID FROM STUDENT WHERE NAME='"+cmbName.getSelectedItem()+"'");
        if(rs.next()){
            //System.out.println("getting student name");
            int id=rs.getInt("STU_ID");
            System.out.println(id);
            String sql="UPDATE STUDENT SET CURRENT_DATE='"+lblTime.getText()+"',SUBJECT='"+cmbSub.getSelectedItem()+"',ATTENDANCE=";

            if(rdbtnPresent.isSelected())
                sql+= "'"+Atdnc[0]+"',";
            else
                sql+= "'"+Atdnc[1]+"'";

            sql+="WHERE STU_ID='"+id+"'";
          st.executeUpdate(sql);
            //cmbName.removeAllItems();
        }

    }catch(SQLException ex){
        Logger.getLogger(Student.class.getName()).log(Level.SEVERE, null, ex);
    }

}

when I am executing this query(UPDATE STUDENT SET CURRENT_DATE='27TH MAY',SUBJECT='CRYPTOGRAPHY',ATTENDANCE='ABSENT' WHERE STU_ID='40';) in oracle 11g it works fine...but the same sql in eclipse returns error.

Upvotes: 1

Views: 663

Answers (1)

Nicolas Filotto
Nicolas Filotto

Reputation: 44965

Your problem should be here:

if (rdbtnPresent.isSelected())
    sql+= "'"+Atdnc[0]+"',"; // --> this should be "'" as there is no more field
else
    sql+= "'"+Atdnc[1]+"'";
sql+="WHERE STU_ID='"+id+"'"; // --> this should start with a space sql+=" WHERE..

So you have 2 issues:

  1. If rdbtnPresent.isSelected() return true, there is a comma that has nothing to do here
  2. There is no space before your WHERE

NB: Consider using PrepareStatement instead to avoid this kind of issue, to avoid having to escape your values and to avoid SQL injection attacks.

Upvotes: 1

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