ABAP Select data from SAP table /PLMU/S_WCC_MYRBB into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /PLMU/S_WCC_MYRBB 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 /PLMU/S_WCC_MYRBB. 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 /PLMU/S_WCC_MYRBB 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_/PLMU/S_WCC_MYRBB TYPE STANDARD TABLE OF /PLMU/S_WCC_MYRBB,
      WA_/PLMU/S_WCC_MYRBB TYPE /PLMU/S_WCC_MYRBB,
      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: </PLMU/S_WCC_MYRBB> TYPE /PLMU/S_WCC_MYRBB.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /PLMU/S_WCC_MYRBB
  INTO TABLE IT_/PLMU/S_WCC_MYRBB.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /PLMU/S_WCC_MYRBB
*  INTO TABLE @DATA(IT_/PLMU/S_WCC_MYRBB2).
*--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_/PLMU/S_WCC_MYRBB INDEX 1 INTO DATA(WA_/PLMU/S_WCC_MYRBB2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/PLMU/S_WCC_MYRBB ASSIGNING </PLMU/S_WCC_MYRBB>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</PLMU/S_WCC_MYRBB>-INTID = 1.
</PLMU/S_WCC_MYRBB>-DISPLAY_KEY = 1.
</PLMU/S_WCC_MYRBB>-SUBID = 1.
</PLMU/S_WCC_MYRBB>-ALT_NO = 1.
</PLMU/S_WCC_MYRBB>-VERS_NO = 1.

ENDLOOP.

LOOP AT IT_/PLMU/S_WCC_MYRBB INTO WA_/PLMU/S_WCC_MYRBB.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/PLMU/S_WCC_MYRBB-SUBRECN, sy-vline,
  WA_/PLMU/S_WCC_MYRBB-RCP_BB_DESCR, sy-vline,
  WA_/PLMU/S_WCC_MYRBB-RCP_BB_TYPE_ID_DESC, sy-vline,
  WA_/PLMU/S_WCC_MYRBB-STATUS, sy-vline,
  WA_/PLMU/S_WCC_MYRBB-RCP_BB_USAGE, sy-vline,
  WA_/PLMU/S_WCC_MYRBB-ECN, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/PLMU/S_WCC_MYRBB 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_/PLMU/S_WCC_MYRBB 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_/PLMU/S_WCC_MYRBB INTO WA_/PLMU/S_WCC_MYRBB.


*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.

*Conversion exit ALPHA, internal->external for field ECN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/PLMU/S_WCC_MYRBB-ECN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/PLMU/S_WCC_MYRBB-ECN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field UOM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/PLMU/S_WCC_MYRBB-UOM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/PLMU/S_WCC_MYRBB-UOM.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

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

TYPES: BEGIN OF T_/PLMU/S_WCC_MYRBB_STR, 
INTID TYPE STRING,
DISPLAY_KEY TYPE STRING,
SUBID TYPE STRING,
ALT_NO TYPE STRING,
VERS_NO TYPE STRING,
SUBRECN TYPE STRING,
RCP_BB_DESCR TYPE STRING,
RCP_BB_TYPE_ID_DESC TYPE STRING,
STATUS TYPE STRING,
RCP_BB_USAGE TYPE STRING,
ECN TYPE STRING,
ECN_DESCR TYPE STRING,
VALID_FROM TYPE STRING,
VALID_TO TYPE STRING,
QTY_FROM TYPE STRING,
QTY_TO TYPE STRING,
UOM TYPE STRING,
CREATED_ON TYPE STRING,
CREATED_BY TYPE STRING,
CHANGED_ON TYPE STRING,
CHANGED_BY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/PLMU/S_WCC_MYRBB_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_/PLMU/S_WCC_MYRBB_STR-INTID sy-vline 
WA_/PLMU/S_WCC_MYRBB_STR-DISPLAY_KEY sy-vline 
WA_/PLMU/S_WCC_MYRBB_STR-SUBID sy-vline 
WA_/PLMU/S_WCC_MYRBB_STR-ALT_NO sy-vline 
WA_/PLMU/S_WCC_MYRBB_STR-VERS_NO sy-vline 
WA_/PLMU/S_WCC_MYRBB_STR-SUBRECN sy-vline 
WA_/PLMU/S_WCC_MYRBB_STR-RCP_BB_DESCR sy-vline 
WA_/PLMU/S_WCC_MYRBB_STR-RCP_BB_TYPE_ID_DESC sy-vline 
WA_/PLMU/S_WCC_MYRBB_STR-STATUS sy-vline 
WA_/PLMU/S_WCC_MYRBB_STR-RCP_BB_USAGE sy-vline 
WA_/PLMU/S_WCC_MYRBB_STR-ECN sy-vline 
WA_/PLMU/S_WCC_MYRBB_STR-ECN_DESCR sy-vline 
WA_/PLMU/S_WCC_MYRBB_STR-VALID_FROM sy-vline 
WA_/PLMU/S_WCC_MYRBB_STR-VALID_TO sy-vline 
WA_/PLMU/S_WCC_MYRBB_STR-QTY_FROM sy-vline 
WA_/PLMU/S_WCC_MYRBB_STR-QTY_TO sy-vline 
WA_/PLMU/S_WCC_MYRBB_STR-UOM sy-vline 
WA_/PLMU/S_WCC_MYRBB_STR-CREATED_ON sy-vline 
WA_/PLMU/S_WCC_MYRBB_STR-CREATED_BY sy-vline 
WA_/PLMU/S_WCC_MYRBB_STR-CHANGED_ON sy-vline 
WA_/PLMU/S_WCC_MYRBB_STR-CHANGED_BY sy-vline      INTO ld_text SEPARATED BY SPACE.

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