ABAP Select data from SAP table WSOH into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM WSOH
*  INTO TABLE @DATA(IT_WSOH2).
*--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_WSOH INDEX 1 INTO DATA(WA_WSOH2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<WSOH>-MANDT = 1.
<WSOH>-SKOPF = 1.
<WSOH>-DATAB = 1.
<WSOH>-DATUB = 1.
<WSOH>-STYPB = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_WSOH-LVORM, sy-vline,
  WA_WSOH-ERSDA, sy-vline,
  WA_WSOH-ERNAM, sy-vline,
  WA_WSOH-PFLKN, sy-vline,
  WA_WSOH-STAT1, sy-vline,
  WA_WSOH-STAT2, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_WSOH 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_WSOH 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_WSOH INTO WA_WSOH.


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

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

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

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

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

*Conversion exit WLMV, internal->external for field LAYMOD_VER
CALL FUNCTION 'CONVERSION_EXIT_WLMV_OUTPUT'
  EXPORTING
    input =                      WA_WSOH-LAYMOD_VER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WSOH-LAYMOD_VER.
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_WSOH_STR, 
MANDT TYPE STRING,
SKOPF TYPE STRING,
DATAB TYPE STRING,
DATUB TYPE STRING,
STYPB TYPE STRING,
LVORM TYPE STRING,
ERSDA TYPE STRING,
ERNAM TYPE STRING,
PFLKN TYPE STRING,
STAT1 TYPE STRING,
STAT2 TYPE STRING,
STAT3 TYPE STRING,
DATAE TYPE STRING,
AENAM TYPE STRING,
AKTIO TYPE STRING,
THEMA TYPE STRING,
FILIA TYPE STRING,
WAGRP TYPE STRING,
LOKAL TYPE STRING,
TYPIN TYPE STRING,
WKLOK TYPE STRING,
WKWAG TYPE STRING,
LIFNR TYPE STRING,
RJPRO TYPE STRING,
LAYGR TYPE STRING,
LAYMOD_VER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_WSOH_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_WSOH_STR-MANDT sy-vline 
WA_WSOH_STR-SKOPF sy-vline 
WA_WSOH_STR-DATAB sy-vline 
WA_WSOH_STR-DATUB sy-vline 
WA_WSOH_STR-STYPB sy-vline 
WA_WSOH_STR-LVORM sy-vline 
WA_WSOH_STR-ERSDA sy-vline 
WA_WSOH_STR-ERNAM sy-vline 
WA_WSOH_STR-PFLKN sy-vline 
WA_WSOH_STR-STAT1 sy-vline 
WA_WSOH_STR-STAT2 sy-vline 
WA_WSOH_STR-STAT3 sy-vline 
WA_WSOH_STR-DATAE sy-vline 
WA_WSOH_STR-AENAM sy-vline 
WA_WSOH_STR-AKTIO sy-vline 
WA_WSOH_STR-THEMA sy-vline 
WA_WSOH_STR-FILIA sy-vline 
WA_WSOH_STR-WAGRP sy-vline 
WA_WSOH_STR-LOKAL sy-vline 
WA_WSOH_STR-TYPIN sy-vline 
WA_WSOH_STR-WKLOK sy-vline 
WA_WSOH_STR-WKWAG sy-vline 
WA_WSOH_STR-LIFNR sy-vline 
WA_WSOH_STR-RJPRO sy-vline 
WA_WSOH_STR-LAYGR sy-vline 
WA_WSOH_STR-LAYMOD_VER sy-vline      INTO ld_text SEPARATED BY SPACE.

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