Preparedstatement - parameterizing table name

Question

public Vector getTableColumns(String tblName) {         loadDriver();         t.removeAllColumns();         try {             pstmt = conn.prepareStatement("select * from ? where rownum < 1");             pstmt.setString(1, tblName);             rs = pstmt.executeQuery();             rsMetaData = rs.getMetaData();             numberOfColumns = rsMetaData.getColumnCount(); //get the number of columns             for (int i = 0; i < numberOfColumns; i++) {                 // get the designated column's table name.                 t.setColumn(rsMetaData.getColumnName(i + 1)); //get the columns and add them to Vector             }             conn.close();         } catch (SQLException e) {             e.printStackTrace();         } finally {             closeConnection(conn);         }         return t.getColumn(); //return the array of the column names     }
it says invalid table name
i tried hardcoding the table name inside and it works though

Answer 1

OnlyForJava wrote:
plz suggest another wayAs coded in your first post, presuming that you are not in fact trying to do something from the other thread...
There is no other way.
Parameterized types can not be used to represent DDL entities - they can only represent data.