tabl1.setQuery( new  com.borland.dx.sql.dataset.QueryDescriptor(
                database1, "SELECT TABL1.A,TABL1.B FROM DB.TABL1",  null , true, Load.ALL));
//...
        column1.setCaption("Колонка 1");
        column1.setColumnName("A");
        column1.setDataType(com.borland.dx.dataset.Variant.STRING);
        column1.setPrecision( 10 );
        column1.setRowId(true);
        column1.setSchemaName("DB");
        column1.setTableName("TABL1");
        column1.setServerColumnName("A");
        column1.setSqlType( 1 );

        column2.setCaption("Колонка 2");
        column2.setColumnName("B");
        column2.setDataType(com.borland.dx.dataset.Variant.STRING);
        column2.setPrecision( 10 );
        column2.setRowId(true);
        column2.setSchemaName("DB");
        column2.setTableName("TABL1");
        column2.setServerColumnName("B");
        column2.setSqlType( 1 );

   tabl1.setColumns( new  Column[] {column1, column2});

 Column column1 =  new  Column();