ABAP Select data from SAP table UMK_YS_BMK_MEAS_MAP into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP UMK_YS_BMK_MEAS_MAP table and store it within an internal table, including using the newer @DATA inline declaration methods. It also shows you various ways to process this data using ABAP work area, inline declaration or field symbols including executing all the relevant CONVERSION_EXIT routines specific to UMK_YS_BMK_MEAS_MAP. See here for more generic Select statement tips.

Sometimes data within SAP is stored within the database table in a different format to what it is displayed to the user. These input/output conversation FM routines are what translates the data between the two formats.

There is also a full declaration of the UMK_YS_BMK_MEAS_MAP table where each field has a char/string type for you to simply copy and paste. This allows you to use processing that is only available to these field types such as the CONCATENATE statement.

DATA: IT_UMK_YS_BMK_MEAS_MAP TYPE STANDARD TABLE OF UMK_YS_BMK_MEAS_MAP,
      WA_UMK_YS_BMK_MEAS_MAP TYPE UMK_YS_BMK_MEAS_MAP,
      GD_STR TYPE STRING.

DATA: lo_typedescr type REF TO cl_abap_typedescr.
DATA: lv_fieldname type fieldname.

FIELD-SYMBOLS: <FIELD> TYPE any.
FIELD-SYMBOLS: <UMK_YS_BMK_MEAS_MAP> TYPE UMK_YS_BMK_MEAS_MAP.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_UMK_YS_BMK_MEAS_MAP.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM UMK_YS_BMK_MEAS_MAP
  INTO TABLE IT_UMK_YS_BMK_MEAS_MAP.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM UMK_YS_BMK_MEAS_MAP
*  INTO TABLE @DATA(IT_UMK_YS_BMK_MEAS_MAP2).
*--Further methods of using ABAP code to  select data from SAP database tables

*You can also declare the header/work area using the in-line DATA declaration method
READ TABLE IT_UMK_YS_BMK_MEAS_MAP INDEX 1 INTO DATA(WA_UMK_YS_BMK_MEAS_MAP2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_UMK_YS_BMK_MEAS_MAP ASSIGNING <UMK_YS_BMK_MEAS_MAP>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<UMK_YS_BMK_MEAS_MAP>-MARK = 1.
<UMK_YS_BMK_MEAS_MAP>-MEAS = 1.
<UMK_YS_BMK_MEAS_MAP>-OBJVERS = 1.
<UMK_YS_BMK_MEAS_MAP>-TXTLG = 1.
<UMK_YS_BMK_MEAS_MAP>-REFMEAS = 1.

ENDLOOP.

LOOP AT IT_UMK_YS_BMK_MEAS_MAP INTO WA_UMK_YS_BMK_MEAS_MAP.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_UMK_YS_BMK_MEAS_MAP-REFMEASTXT, sy-vline,
  WA_UMK_YS_BMK_MEAS_MAP-MSGICON, sy-vline,
  WA_UMK_YS_BMK_MEAS_MAP-NOTE, sy-vline,
  WA_UMK_YS_BMK_MEAS_MAP-MSGTY, sy-vline,
  WA_UMK_YS_BMK_MEAS_MAP-MSGNO, sy-vline,
  WA_UMK_YS_BMK_MEAS_MAP-NO_MAPPING, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_UMK_YS_BMK_MEAS_MAP you want to display...

  WRITE:/ sy-uline.
* Aternatively use generic code to Write field values (and NAME) to screen report
  DO.
    ASSIGN COMPONENT sy-index OF STRUCTURE wa_UMK_YS_BMK_MEAS_MAP TO <field>.
    IF sy-subrc <> 0. EXIT. ENDIF.
    WRITE:/ 'Field Value', <field>, sy-vline.
    gd_str = <field> .
    lo_typedescr ?= CL_ABAP_DATADESCR=>DESCRIBE_BY_DATA( <field> ).
    lv_fieldname = lo_typedescr->GET_RELATIVE_NAME( ).
    WRITE:/ 'Field Name', lv_fieldname.
  ENDDO.

  
*Redo loop but convert all fields from internal to out value  
LOOP AT IT_UMK_YS_BMK_MEAS_MAP INTO WA_UMK_YS_BMK_MEAS_MAP.


*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Convert all fields to display/output versions using conversion routines
  PERFORM convert_all_field_values CHANGING wa_EKKO.
	 
ENDLOOP.

  
*&---------------------------------------------------------------------*
*& Form convert_all_field_values
*&---------------------------------------------------------------------*
FORM convert_all_field_values CHANGING p_EKKO LIKE wa_EKKO.
DATA: ld_input(1000) TYPE c, ld_output(1000) TYPE C.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_UMK_YS_BMK_MEAS_MAP_STR, 
MARK TYPE STRING,
MEAS TYPE STRING,
OBJVERS TYPE STRING,
TXTLG TYPE STRING,
REFMEAS TYPE STRING,
REFMEASTXT TYPE STRING,
MSGICON TYPE STRING,
NOTE TYPE STRING,
MSGTY TYPE STRING,
MSGNO TYPE STRING,
NO_MAPPING TYPE STRING,END OF T_EKKO_STR.
DATA: WA_UMK_YS_BMK_MEAS_MAP_STR type T_EKKO_STR.

DATA: ld_text TYPE string.

LOOP AT IT_EKKO INTO WA_EKKO.
  MOVE-CORRESPONDING wa_EKKO TO WA_EKKO_STR.
  CONCATENATE: sy-vline
WA_UMK_YS_BMK_MEAS_MAP_STR-MARK sy-vline 
WA_UMK_YS_BMK_MEAS_MAP_STR-MEAS sy-vline 
WA_UMK_YS_BMK_MEAS_MAP_STR-OBJVERS sy-vline 
WA_UMK_YS_BMK_MEAS_MAP_STR-TXTLG sy-vline 
WA_UMK_YS_BMK_MEAS_MAP_STR-REFMEAS sy-vline 
WA_UMK_YS_BMK_MEAS_MAP_STR-REFMEASTXT sy-vline 
WA_UMK_YS_BMK_MEAS_MAP_STR-MSGICON sy-vline 
WA_UMK_YS_BMK_MEAS_MAP_STR-NOTE sy-vline 
WA_UMK_YS_BMK_MEAS_MAP_STR-MSGTY sy-vline 
WA_UMK_YS_BMK_MEAS_MAP_STR-MSGNO sy-vline 
WA_UMK_YS_BMK_MEAS_MAP_STR-NO_MAPPING sy-vline      INTO ld_text SEPARATED BY SPACE.

*Add any further fields from structure WA_EKKO_STR you want to CONCATENATE...
ENDLOOP.
ENDFORM.