ABAP Select data from SAP table FMCAWOH into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FMCAWOH
*  INTO TABLE @DATA(IT_FMCAWOH2).
*--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_FMCAWOH INDEX 1 INTO DATA(WA_FMCAWOH2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FMCAWOH>-W_OPBEL = 1.
<FMCAWOH>-W_OPUPW = 1.
<FMCAWOH>-W_OPUPK = 1.
<FMCAWOH>-W_OPUPZ = 1.
<FMCAWOH>-W_BLART = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FMCAWOH-W_STAKZ, sy-vline,
  WA_FMCAWOH-W_GPART, sy-vline,
  WA_FMCAWOH-NAME1, sy-vline,
  WA_FMCAWOH-NAME2, sy-vline,
  WA_FMCAWOH-STREET, sy-vline,
  WA_FMCAWOH-HOUSENUM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FMCAWOH 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_FMCAWOH 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_FMCAWOH INTO WA_FMCAWOH.


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

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

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

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

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

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

*Conversion exit FMCIL, internal->external for field FIPEX
CALL FUNCTION 'CONVERSION_EXIT_FMCIL_OUTPUT'
  EXPORTING
    input =                      WA_FMCAWOH-FIPEX
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMCAWOH-FIPEX.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit FMCIL, internal->external for field A_FIPEX
CALL FUNCTION 'CONVERSION_EXIT_FMCIL_OUTPUT'
  EXPORTING
    input =                      WA_FMCAWOH-A_FIPEX
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMCAWOH-A_FIPEX.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field A_XBLNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FMCAWOH-A_XBLNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMCAWOH-A_XBLNR.
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_FMCAWOH_STR, 
W_OPBEL TYPE STRING,
W_OPUPW TYPE STRING,
W_OPUPK TYPE STRING,
W_OPUPZ TYPE STRING,
W_BLART TYPE STRING,
W_STAKZ TYPE STRING,
W_GPART TYPE STRING,
NAME1 TYPE STRING,
NAME2 TYPE STRING,
STREET TYPE STRING,
HOUSENUM TYPE STRING,
POSTCODE TYPE STRING,
CITY TYPE STRING,
COUNTRY TYPE STRING,
W_VKONT TYPE STRING,
W_VTREF TYPE STRING,
W_SUBAP TYPE STRING,
W_WAERS TYPE STRING,
W_BETRW TYPE STRING,
W_ABGRD TYPE STRING,
ABTXT TYPE STRING,
W_ABDAT TYPE STRING,
W_ABBEL TYPE STRING,
W_HERKF TYPE STRING,
W_XRVSD TYPE STRING,
W_LAUFD TYPE STRING,
W_LAUFI TYPE STRING,
BUKRS TYPE STRING,
VTREF TYPE STRING,
SUBAP TYPE STRING,
HVORG TYPE STRING,
TVORG TYPE STRING,
ORIGFIKRS TYPE STRING,
FIPEX TYPE STRING,
FISTL TYPE STRING,
FONDS TYPE STRING,
FKBER TYPE STRING,
MEASURE TYPE STRING,
HERKF TYPE STRING,
ERNAM TYPE STRING,
CPUDT TYPE STRING,
XBLNR TYPE STRING,
OPORD TYPE STRING,
OPTXT TYPE STRING,
A_HKONT TYPE STRING,
A_ORIGFIKRS TYPE STRING,
A_FIPEX TYPE STRING,
A_FISTL TYPE STRING,
A_FONDS TYPE STRING,
A_FKBER TYPE STRING,
A_MEASURE TYPE STRING,
A_BLART TYPE STRING,
A_ERNAM TYPE STRING,
A_CPUDT TYPE STRING,
A_XBLNR TYPE STRING,
RESUBMIT_DATE TYPE STRING,
STATE TYPE STRING,
STATETXT TYPE STRING,
WORKSTATE TYPE STRING,
WORKSTATETXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FMCAWOH_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_FMCAWOH_STR-W_OPBEL sy-vline 
WA_FMCAWOH_STR-W_OPUPW sy-vline 
WA_FMCAWOH_STR-W_OPUPK sy-vline 
WA_FMCAWOH_STR-W_OPUPZ sy-vline 
WA_FMCAWOH_STR-W_BLART sy-vline 
WA_FMCAWOH_STR-W_STAKZ sy-vline 
WA_FMCAWOH_STR-W_GPART sy-vline 
WA_FMCAWOH_STR-NAME1 sy-vline 
WA_FMCAWOH_STR-NAME2 sy-vline 
WA_FMCAWOH_STR-STREET sy-vline 
WA_FMCAWOH_STR-HOUSENUM sy-vline 
WA_FMCAWOH_STR-POSTCODE sy-vline 
WA_FMCAWOH_STR-CITY sy-vline 
WA_FMCAWOH_STR-COUNTRY sy-vline 
WA_FMCAWOH_STR-W_VKONT sy-vline 
WA_FMCAWOH_STR-W_VTREF sy-vline 
WA_FMCAWOH_STR-W_SUBAP sy-vline 
WA_FMCAWOH_STR-W_WAERS sy-vline 
WA_FMCAWOH_STR-W_BETRW sy-vline 
WA_FMCAWOH_STR-W_ABGRD sy-vline 
WA_FMCAWOH_STR-ABTXT sy-vline 
WA_FMCAWOH_STR-W_ABDAT sy-vline 
WA_FMCAWOH_STR-W_ABBEL sy-vline 
WA_FMCAWOH_STR-W_HERKF sy-vline 
WA_FMCAWOH_STR-W_XRVSD sy-vline 
WA_FMCAWOH_STR-W_LAUFD sy-vline 
WA_FMCAWOH_STR-W_LAUFI sy-vline 
WA_FMCAWOH_STR-BUKRS sy-vline 
WA_FMCAWOH_STR-VTREF sy-vline 
WA_FMCAWOH_STR-SUBAP sy-vline 
WA_FMCAWOH_STR-HVORG sy-vline 
WA_FMCAWOH_STR-TVORG sy-vline 
WA_FMCAWOH_STR-ORIGFIKRS sy-vline 
WA_FMCAWOH_STR-FIPEX sy-vline 
WA_FMCAWOH_STR-FISTL sy-vline 
WA_FMCAWOH_STR-FONDS sy-vline 
WA_FMCAWOH_STR-FKBER sy-vline 
WA_FMCAWOH_STR-MEASURE sy-vline 
WA_FMCAWOH_STR-HERKF sy-vline 
WA_FMCAWOH_STR-ERNAM sy-vline 
WA_FMCAWOH_STR-CPUDT sy-vline 
WA_FMCAWOH_STR-XBLNR sy-vline 
WA_FMCAWOH_STR-OPORD sy-vline 
WA_FMCAWOH_STR-OPTXT sy-vline 
WA_FMCAWOH_STR-A_HKONT sy-vline 
WA_FMCAWOH_STR-A_ORIGFIKRS sy-vline 
WA_FMCAWOH_STR-A_FIPEX sy-vline 
WA_FMCAWOH_STR-A_FISTL sy-vline 
WA_FMCAWOH_STR-A_FONDS sy-vline 
WA_FMCAWOH_STR-A_FKBER sy-vline 
WA_FMCAWOH_STR-A_MEASURE sy-vline 
WA_FMCAWOH_STR-A_BLART sy-vline 
WA_FMCAWOH_STR-A_ERNAM sy-vline 
WA_FMCAWOH_STR-A_CPUDT sy-vline 
WA_FMCAWOH_STR-A_XBLNR sy-vline 
WA_FMCAWOH_STR-RESUBMIT_DATE sy-vline 
WA_FMCAWOH_STR-STATE sy-vline 
WA_FMCAWOH_STR-STATETXT sy-vline 
WA_FMCAWOH_STR-WORKSTATE sy-vline 
WA_FMCAWOH_STR-WORKSTATETXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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