ABAP Select data from SAP table WRMA_S_DOCUMENT 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_DOCUMENT 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_DOCUMENT. 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_DOCUMENT 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_DOCUMENT TYPE STANDARD TABLE OF WRMA_S_DOCUMENT,
      WA_WRMA_S_DOCUMENT TYPE WRMA_S_DOCUMENT,
      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_DOCUMENT> TYPE WRMA_S_DOCUMENT.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM WRMA_S_DOCUMENT
*  INTO TABLE @DATA(IT_WRMA_S_DOCUMENT2).
*--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_DOCUMENT INDEX 1 INTO DATA(WA_WRMA_S_DOCUMENT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<WRMA_S_DOCUMENT>-0DOC_NUM = 1.
<WRMA_S_DOCUMENT>-0DOC_YEAR = 1.
<WRMA_S_DOCUMENT>-0DOC_ITEM = 1.
<WRMA_S_DOCUMENT>-0COMP_CODE = 1.
<WRMA_S_DOCUMENT>-0FISCYEAR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_WRMA_S_DOCUMENT-0FISCVARNT, sy-vline,
  WA_WRMA_S_DOCUMENT-0RPA_RSN, sy-vline,
  WA_WRMA_S_DOCUMENT-0RPA_DTG, sy-vline,
  WA_WRMA_S_DOCUMENT-0RPA_DTC, sy-vline,
  WA_WRMA_S_DOCUMENT-0RPA_DRC, sy-vline,
  WA_WRMA_S_DOCUMENT-0PROCESSKEY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_WRMA_S_DOCUMENT 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_DOCUMENT 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_DOCUMENT INTO WA_WRMA_S_DOCUMENT.


*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 0RPA_DTG
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_WRMA_S_DOCUMENT-0RPA_DTG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WRMA_S_DOCUMENT-0RPA_DTG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field 0RPA_DTC
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_WRMA_S_DOCUMENT-0RPA_DTC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WRMA_S_DOCUMENT-0RPA_DTC.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field 0MATERIAL
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_WRMA_S_DOCUMENT-0MATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WRMA_S_DOCUMENT-0MATERIAL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field 0LOGSYS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_WRMA_S_DOCUMENT-0LOGSYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WRMA_S_DOCUMENT-0LOGSYS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field 0PO_UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_WRMA_S_DOCUMENT-0PO_UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WRMA_S_DOCUMENT-0PO_UNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field 0BASE_UOM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_WRMA_S_DOCUMENT-0BASE_UOM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WRMA_S_DOCUMENT-0BASE_UOM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field 0SALES_UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_WRMA_S_DOCUMENT-0SALES_UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WRMA_S_DOCUMENT-0SALES_UNIT.
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_DOCUMENT_STR, 
0DOC_NUM TYPE STRING,
0DOC_YEAR TYPE STRING,
0DOC_ITEM TYPE STRING,
0COMP_CODE TYPE STRING,
0FISCYEAR TYPE STRING,
0FISCVARNT TYPE STRING,
0RPA_RSN TYPE STRING,
0RPA_DTG TYPE STRING,
0RPA_DTC TYPE STRING,
0RPA_DRC TYPE STRING,
0PROCESSKEY TYPE STRING,
0BWCOUNTER TYPE STRING,
0MATERIAL TYPE STRING,
0PLANT TYPE STRING,
0RMA_PLANT TYPE STRING,
0RMA_OBJ TYPE STRING,
0PSTNG_DATE TYPE STRING,
0LOGSYS TYPE STRING,
0RTINSADIVT TYPE STRING,
0RTINSADIST TYPE STRING,
0MOVETYPE TYPE STRING,
0STOCKCAT TYPE STRING,
0RT_REVREAS TYPE STRING,
0MOVE_PLANT TYPE STRING,
0VENDOR TYPE STRING,
0MATMREA TYPE STRING,
0CPSVLC TYPE STRING,
0CPSTLC TYPE STRING,
0CPPVLC TYPE STRING,
0RT_VP_BT TYPE STRING,
0RT_VP_NT TYPE STRING,
0RT_OPB_MPT TYPE STRING,
0RT_OPN_MPT TYPE STRING,
0CPQUABU TYPE STRING,
0RPA_RLQ TYPE STRING,
0CPDEOGQUOU TYPE STRING,
0PO_UNIT TYPE STRING,
0BASE_UOM TYPE STRING,
0SALES_UNIT TYPE STRING,
0LOC_CURRCY TYPE STRING,
0OI_EBELN TYPE STRING,
0RT_VWAERBT TYPE STRING,
0RT_VWAERNT TYPE STRING,
0RT_VKSPO TYPE STRING,
0RT_VKSNO TYPE STRING,
0RT_SPRCHTY TYPE STRING,
0RPA_PA2 TYPE STRING,
0SIGN TYPE STRING,
0RMA_XCC TYPE STRING,
0RT_REV_SRC TYPE STRING,
0OI_EBELP TYPE STRING,
0AB_NETVAL TYPE STRING,
0AB_GRSVAL TYPE STRING,
0AB_CURRCY TYPE STRING,
0RT_PRDIFF TYPE STRING,
0EXCHG_RATE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_WRMA_S_DOCUMENT_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_DOCUMENT_STR-0DOC_NUM sy-vline 
WA_WRMA_S_DOCUMENT_STR-0DOC_YEAR sy-vline 
WA_WRMA_S_DOCUMENT_STR-0DOC_ITEM sy-vline 
WA_WRMA_S_DOCUMENT_STR-0COMP_CODE sy-vline 
WA_WRMA_S_DOCUMENT_STR-0FISCYEAR sy-vline 
WA_WRMA_S_DOCUMENT_STR-0FISCVARNT sy-vline 
WA_WRMA_S_DOCUMENT_STR-0RPA_RSN sy-vline 
WA_WRMA_S_DOCUMENT_STR-0RPA_DTG sy-vline 
WA_WRMA_S_DOCUMENT_STR-0RPA_DTC sy-vline 
WA_WRMA_S_DOCUMENT_STR-0RPA_DRC sy-vline 
WA_WRMA_S_DOCUMENT_STR-0PROCESSKEY sy-vline 
WA_WRMA_S_DOCUMENT_STR-0BWCOUNTER sy-vline 
WA_WRMA_S_DOCUMENT_STR-0MATERIAL sy-vline 
WA_WRMA_S_DOCUMENT_STR-0PLANT sy-vline 
WA_WRMA_S_DOCUMENT_STR-0RMA_PLANT sy-vline 
WA_WRMA_S_DOCUMENT_STR-0RMA_OBJ sy-vline 
WA_WRMA_S_DOCUMENT_STR-0PSTNG_DATE sy-vline 
WA_WRMA_S_DOCUMENT_STR-0LOGSYS sy-vline 
WA_WRMA_S_DOCUMENT_STR-0RTINSADIVT sy-vline 
WA_WRMA_S_DOCUMENT_STR-0RTINSADIST sy-vline 
WA_WRMA_S_DOCUMENT_STR-0MOVETYPE sy-vline 
WA_WRMA_S_DOCUMENT_STR-0STOCKCAT sy-vline 
WA_WRMA_S_DOCUMENT_STR-0RT_REVREAS sy-vline 
WA_WRMA_S_DOCUMENT_STR-0MOVE_PLANT sy-vline 
WA_WRMA_S_DOCUMENT_STR-0VENDOR sy-vline 
WA_WRMA_S_DOCUMENT_STR-0MATMREA sy-vline 
WA_WRMA_S_DOCUMENT_STR-0CPSVLC sy-vline 
WA_WRMA_S_DOCUMENT_STR-0CPSTLC sy-vline 
WA_WRMA_S_DOCUMENT_STR-0CPPVLC sy-vline 
WA_WRMA_S_DOCUMENT_STR-0RT_VP_BT sy-vline 
WA_WRMA_S_DOCUMENT_STR-0RT_VP_NT sy-vline 
WA_WRMA_S_DOCUMENT_STR-0RT_OPB_MPT sy-vline 
WA_WRMA_S_DOCUMENT_STR-0RT_OPN_MPT sy-vline 
WA_WRMA_S_DOCUMENT_STR-0CPQUABU sy-vline 
WA_WRMA_S_DOCUMENT_STR-0RPA_RLQ sy-vline 
WA_WRMA_S_DOCUMENT_STR-0CPDEOGQUOU sy-vline 
WA_WRMA_S_DOCUMENT_STR-0PO_UNIT sy-vline 
WA_WRMA_S_DOCUMENT_STR-0BASE_UOM sy-vline 
WA_WRMA_S_DOCUMENT_STR-0SALES_UNIT sy-vline 
WA_WRMA_S_DOCUMENT_STR-0LOC_CURRCY sy-vline 
WA_WRMA_S_DOCUMENT_STR-0OI_EBELN sy-vline 
WA_WRMA_S_DOCUMENT_STR-0RT_VWAERBT sy-vline 
WA_WRMA_S_DOCUMENT_STR-0RT_VWAERNT sy-vline 
WA_WRMA_S_DOCUMENT_STR-0RT_VKSPO sy-vline 
WA_WRMA_S_DOCUMENT_STR-0RT_VKSNO sy-vline 
WA_WRMA_S_DOCUMENT_STR-0RT_SPRCHTY sy-vline 
WA_WRMA_S_DOCUMENT_STR-0RPA_PA2 sy-vline 
WA_WRMA_S_DOCUMENT_STR-0SIGN sy-vline 
WA_WRMA_S_DOCUMENT_STR-0RMA_XCC sy-vline 
WA_WRMA_S_DOCUMENT_STR-0RT_REV_SRC sy-vline 
WA_WRMA_S_DOCUMENT_STR-0OI_EBELP sy-vline 
WA_WRMA_S_DOCUMENT_STR-0AB_NETVAL sy-vline 
WA_WRMA_S_DOCUMENT_STR-0AB_GRSVAL sy-vline 
WA_WRMA_S_DOCUMENT_STR-0AB_CURRCY sy-vline 
WA_WRMA_S_DOCUMENT_STR-0RT_PRDIFF sy-vline 
WA_WRMA_S_DOCUMENT_STR-0EXCHG_RATE sy-vline      INTO ld_text SEPARATED BY SPACE.

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