ABAP Select data from SAP table WSOL_STUFE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM WSOL_STUFE
*  INTO TABLE @DATA(IT_WSOL_STUFE2).
*--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_WSOL_STUFE INDEX 1 INTO DATA(WA_WSOL_STUFE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<WSOL_STUFE>-MANDT = 1.
<WSOL_STUFE>-MATNR = 1.
<WSOL_STUFE>-LIFNR = 1.
<WSOL_STUFE>-WERKS = 1.
<WSOL_STUFE>-LOCNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_WSOL_STUFE-MATKL, sy-vline,
  WA_WSOL_STUFE-EKORG, sy-vline,
  WA_WSOL_STUFE-VKORG, sy-vline,
  WA_WSOL_STUFE-VTWEG, sy-vline,
  WA_WSOL_STUFE-INFNR, sy-vline,
  WA_WSOL_STUFE-ALDAT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_WSOL_STUFE 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_WSOL_STUFE 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_WSOL_STUFE INTO WA_WSOL_STUFE.


*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 MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_WSOL_STUFE-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WSOL_STUFE-MATNR.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit ALPHA, internal->external for field INFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_WSOL_STUFE-INFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WSOL_STUFE-INFNR.
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_WSOL_STUFE_STR, 
MANDT TYPE STRING,
MATNR TYPE STRING,
LIFNR TYPE STRING,
WERKS TYPE STRING,
LOCNR TYPE STRING,
MATKL TYPE STRING,
EKORG TYPE STRING,
VKORG TYPE STRING,
VTWEG TYPE STRING,
INFNR TYPE STRING,
ALDAT TYPE STRING,
BSPER TYPE STRING,
VSPER TYPE STRING,
LGORT TYPE STRING,
LGNUM TYPE STRING,
BWTAR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_WSOL_STUFE_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_WSOL_STUFE_STR-MANDT sy-vline 
WA_WSOL_STUFE_STR-MATNR sy-vline 
WA_WSOL_STUFE_STR-LIFNR sy-vline 
WA_WSOL_STUFE_STR-WERKS sy-vline 
WA_WSOL_STUFE_STR-LOCNR sy-vline 
WA_WSOL_STUFE_STR-MATKL sy-vline 
WA_WSOL_STUFE_STR-EKORG sy-vline 
WA_WSOL_STUFE_STR-VKORG sy-vline 
WA_WSOL_STUFE_STR-VTWEG sy-vline 
WA_WSOL_STUFE_STR-INFNR sy-vline 
WA_WSOL_STUFE_STR-ALDAT sy-vline 
WA_WSOL_STUFE_STR-BSPER sy-vline 
WA_WSOL_STUFE_STR-VSPER sy-vline 
WA_WSOL_STUFE_STR-LGORT sy-vline 
WA_WSOL_STUFE_STR-LGNUM sy-vline 
WA_WSOL_STUFE_STR-BWTAR sy-vline      INTO ld_text SEPARATED BY SPACE.

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