ABAP Select data from SAP table WRMA_S_SELECTION into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP WRMA_S_SELECTION 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 WRMA_S_SELECTION. 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 WRMA_S_SELECTION 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_WRMA_S_SELECTION TYPE STANDARD TABLE OF WRMA_S_SELECTION,
      WA_WRMA_S_SELECTION TYPE WRMA_S_SELECTION,
      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: <WRMA_S_SELECTION> TYPE WRMA_S_SELECTION.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM WRMA_S_SELECTION
*  INTO TABLE @DATA(IT_WRMA_S_SELECTION2).
*--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_WRMA_S_SELECTION INDEX 1 INTO DATA(WA_WRMA_S_SELECTION2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<WRMA_S_SELECTION>-COMP_CODE = 1.
<WRMA_S_SELECTION>-SALESORG = 1.
<WRMA_S_SELECTION>-DISTR_CHAN = 1.
<WRMA_S_SELECTION>-PLANT_LOW = 1.
<WRMA_S_SELECTION>-PLANT_HIGH = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_WRMA_S_SELECTION-OBJECT, sy-vline,
  WA_WRMA_S_SELECTION-FISC_VAR, sy-vline,
  WA_WRMA_S_SELECTION-FISC_VAR_TXT, sy-vline,
  WA_WRMA_S_SELECTION-FISC_PER, sy-vline,
  WA_WRMA_S_SELECTION-FISC_PER_TXT, sy-vline,
  WA_WRMA_S_SELECTION-POSTING_DATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_WRMA_S_SELECTION 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_WRMA_S_SELECTION 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_WRMA_S_SELECTION INTO WA_WRMA_S_SELECTION.


*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 PERI7, internal->external for field FISC_PER
CALL FUNCTION 'CONVERSION_EXIT_PERI7_OUTPUT'
  EXPORTING
    input =                      WA_WRMA_S_SELECTION-FISC_PER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WRMA_S_SELECTION-FISC_PER.
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_WRMA_S_SELECTION_STR, 
COMP_CODE TYPE STRING,
SALESORG TYPE STRING,
DISTR_CHAN TYPE STRING,
PLANT_LOW TYPE STRING,
PLANT_HIGH TYPE STRING,
OBJECT TYPE STRING,
FISC_VAR TYPE STRING,
FISC_VAR_TXT TYPE STRING,
FISC_PER TYPE STRING,
FISC_PER_TXT TYPE STRING,
POSTING_DATE TYPE STRING,
RMA_OBJ_REL TYPE STRING,
HIER_LEVEL TYPE STRING,
PLANT TYPE STRING,
REF_PLANT TYPE STRING,
RMA_FLAG TYPE STRING,
LOC_CURRCY TYPE STRING,
PLANT_TXT TYPE STRING,
SALESORG_TXT TYPE STRING,
DISTR_CHAN_TXT TYPE STRING,
LOC_CURRCY_TXT TYPE STRING,
COMP_CODE_TXT TYPE STRING,
REF_PLANT_TXT TYPE STRING,
OBJECT_TXT TYPE STRING,
RMA_OBJ_REL_TXT TYPE STRING,
OBJECTMODEL TYPE STRING,
OBJECTMODEL_TXT TYPE STRING,
OBJECTLEV TYPE STRING,
OBJECTLEV_TXT TYPE STRING,
HELP TYPE STRING,
PLANT_SHRINK TYPE STRING,
CC_SHRINK TYPE STRING,
DC_SHRINK TYPE STRING,
PLT_OBJ_SHRINK TYPE STRING,
CC_OBJ_SHRINK TYPE STRING,
DC_OBJ_SHRINK TYPE STRING,
PLT_SHRINK_TXT TYPE STRING,
CC_SHRINK_TXT TYPE STRING,
DC_SHRINK_TXT TYPE STRING,
PLT_OBJ_SHRINK_TXT TYPE STRING,
CC_OBJ_SHRINK_TXT TYPE STRING,
DC_OBJ_SHRINK_TXT TYPE STRING,
CC_OBJ_LEV_TXT TYPE STRING,
CC_OBJ_MODEL_TXT TYPE STRING,
RMA_ALLOC TYPE STRING,END OF T_EKKO_STR.
DATA: WA_WRMA_S_SELECTION_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_WRMA_S_SELECTION_STR-COMP_CODE sy-vline 
WA_WRMA_S_SELECTION_STR-SALESORG sy-vline 
WA_WRMA_S_SELECTION_STR-DISTR_CHAN sy-vline 
WA_WRMA_S_SELECTION_STR-PLANT_LOW sy-vline 
WA_WRMA_S_SELECTION_STR-PLANT_HIGH sy-vline 
WA_WRMA_S_SELECTION_STR-OBJECT sy-vline 
WA_WRMA_S_SELECTION_STR-FISC_VAR sy-vline 
WA_WRMA_S_SELECTION_STR-FISC_VAR_TXT sy-vline 
WA_WRMA_S_SELECTION_STR-FISC_PER sy-vline 
WA_WRMA_S_SELECTION_STR-FISC_PER_TXT sy-vline 
WA_WRMA_S_SELECTION_STR-POSTING_DATE sy-vline 
WA_WRMA_S_SELECTION_STR-RMA_OBJ_REL sy-vline 
WA_WRMA_S_SELECTION_STR-HIER_LEVEL sy-vline 
WA_WRMA_S_SELECTION_STR-PLANT sy-vline 
WA_WRMA_S_SELECTION_STR-REF_PLANT sy-vline 
WA_WRMA_S_SELECTION_STR-RMA_FLAG sy-vline 
WA_WRMA_S_SELECTION_STR-LOC_CURRCY sy-vline 
WA_WRMA_S_SELECTION_STR-PLANT_TXT sy-vline 
WA_WRMA_S_SELECTION_STR-SALESORG_TXT sy-vline 
WA_WRMA_S_SELECTION_STR-DISTR_CHAN_TXT sy-vline 
WA_WRMA_S_SELECTION_STR-LOC_CURRCY_TXT sy-vline 
WA_WRMA_S_SELECTION_STR-COMP_CODE_TXT sy-vline 
WA_WRMA_S_SELECTION_STR-REF_PLANT_TXT sy-vline 
WA_WRMA_S_SELECTION_STR-OBJECT_TXT sy-vline 
WA_WRMA_S_SELECTION_STR-RMA_OBJ_REL_TXT sy-vline 
WA_WRMA_S_SELECTION_STR-OBJECTMODEL sy-vline 
WA_WRMA_S_SELECTION_STR-OBJECTMODEL_TXT sy-vline 
WA_WRMA_S_SELECTION_STR-OBJECTLEV sy-vline 
WA_WRMA_S_SELECTION_STR-OBJECTLEV_TXT sy-vline 
WA_WRMA_S_SELECTION_STR-HELP sy-vline 
WA_WRMA_S_SELECTION_STR-PLANT_SHRINK sy-vline 
WA_WRMA_S_SELECTION_STR-CC_SHRINK sy-vline 
WA_WRMA_S_SELECTION_STR-DC_SHRINK sy-vline 
WA_WRMA_S_SELECTION_STR-PLT_OBJ_SHRINK sy-vline 
WA_WRMA_S_SELECTION_STR-CC_OBJ_SHRINK sy-vline 
WA_WRMA_S_SELECTION_STR-DC_OBJ_SHRINK sy-vline 
WA_WRMA_S_SELECTION_STR-PLT_SHRINK_TXT sy-vline 
WA_WRMA_S_SELECTION_STR-CC_SHRINK_TXT sy-vline 
WA_WRMA_S_SELECTION_STR-DC_SHRINK_TXT sy-vline 
WA_WRMA_S_SELECTION_STR-PLT_OBJ_SHRINK_TXT sy-vline 
WA_WRMA_S_SELECTION_STR-CC_OBJ_SHRINK_TXT sy-vline 
WA_WRMA_S_SELECTION_STR-DC_OBJ_SHRINK_TXT sy-vline 
WA_WRMA_S_SELECTION_STR-CC_OBJ_LEV_TXT sy-vline 
WA_WRMA_S_SELECTION_STR-CC_OBJ_MODEL_TXT sy-vline 
WA_WRMA_S_SELECTION_STR-RMA_ALLOC sy-vline      INTO ld_text SEPARATED BY SPACE.

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