public String sql_insertPreparedStatement(String vendorName,String catalogName,String schemaName,String tableName,ArrayList<String> columnNames){
  return sql_insert(vendorName,catalogName,schemaName,tableName,columnNames,null);
}

public String sql_insertPreparedStatement ( String vendorName , String catalogName , String schemaName , String tableName , ArrayList < String > columnNames ) { return sql_insert ( vendorName , catalogName , schemaName , tableName , columnNames , null ) ; }
gets the database specific sql command to insert records as prepared statement
