ABAP Select data from SAP table WISP_KEYS_SAP_M00 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP WISP_KEYS_SAP_M00 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 WISP_KEYS_SAP_M00. 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 WISP_KEYS_SAP_M00 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_WISP_KEYS_SAP_M00 TYPE STANDARD TABLE OF WISP_KEYS_SAP_M00,
      WA_WISP_KEYS_SAP_M00 TYPE WISP_KEYS_SAP_M00,
      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: <WISP_KEYS_SAP_M00> TYPE WISP_KEYS_SAP_M00.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_WISP_KEYS_SAP_M00.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM WISP_KEYS_SAP_M00
  INTO TABLE IT_WISP_KEYS_SAP_M00.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM WISP_KEYS_SAP_M00
*  INTO TABLE @DATA(IT_WISP_KEYS_SAP_M002).
*--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_WISP_KEYS_SAP_M00 INDEX 1 INTO DATA(WA_WISP_KEYS_SAP_M002).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_WISP_KEYS_SAP_M00 ASSIGNING <WISP_KEYS_SAP_M00>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<WISP_KEYS_SAP_M00>-VRSIO = 1.
<WISP_KEYS_SAP_M00>-SPMON = 1.
<WISP_KEYS_SAP_M00>-SPWOC = 1.
<WISP_KEYS_SAP_M00>-SPBUP = 1.
<WISP_KEYS_SAP_M00>-SPBUP3 = 1.

ENDLOOP.

LOOP AT IT_WISP_KEYS_SAP_M00 INTO WA_WISP_KEYS_SAP_M00.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_WISP_KEYS_SAP_M00-SPWOC3, sy-vline,
  WA_WISP_KEYS_SAP_M00-SPMON3, sy-vline,
  WA_WISP_KEYS_SAP_M00-GJAHR, sy-vline,
  WA_WISP_KEYS_SAP_M00-SPTAG, sy-vline,
  WA_WISP_KEYS_SAP_M00-SPTAG3, sy-vline,
ENDLOOP.
   
*Add any further fields from structure WA_WISP_KEYS_SAP_M00 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_WISP_KEYS_SAP_M00 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_WISP_KEYS_SAP_M00 INTO WA_WISP_KEYS_SAP_M00.


*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 VRSIO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_WISP_KEYS_SAP_M00-VRSIO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WISP_KEYS_SAP_M00-VRSIO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PERI7, internal->external for field SPMON
CALL FUNCTION 'CONVERSION_EXIT_PERI7_OUTPUT'
  EXPORTING
    input =                      WA_WISP_KEYS_SAP_M00-SPMON
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WISP_KEYS_SAP_M00-SPMON.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PERI7, internal->external for field SPWOC
CALL FUNCTION 'CONVERSION_EXIT_PERI7_OUTPUT'
  EXPORTING
    input =                      WA_WISP_KEYS_SAP_M00-SPWOC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WISP_KEYS_SAP_M00-SPWOC.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PERI7, internal->external for field SPBUP
CALL FUNCTION 'CONVERSION_EXIT_PERI7_OUTPUT'
  EXPORTING
    input =                      WA_WISP_KEYS_SAP_M00-SPBUP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WISP_KEYS_SAP_M00-SPBUP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_WISP_KEYS_SAP_M00-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WISP_KEYS_SAP_M00-GJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PERI7, internal->external for field SPTAG
CALL FUNCTION 'CONVERSION_EXIT_PERI7_OUTPUT'
  EXPORTING
    input =                      WA_WISP_KEYS_SAP_M00-SPTAG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WISP_KEYS_SAP_M00-SPTAG.
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_WISP_KEYS_SAP_M00_STR, 
VRSIO TYPE STRING,
SPMON TYPE STRING,
SPWOC TYPE STRING,
SPBUP TYPE STRING,
SPBUP3 TYPE STRING,
SPWOC3 TYPE STRING,
SPMON3 TYPE STRING,
GJAHR TYPE STRING,
SPTAG TYPE STRING,
SPTAG3 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_WISP_KEYS_SAP_M00_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_WISP_KEYS_SAP_M00_STR-VRSIO sy-vline 
WA_WISP_KEYS_SAP_M00_STR-SPMON sy-vline 
WA_WISP_KEYS_SAP_M00_STR-SPWOC sy-vline 
WA_WISP_KEYS_SAP_M00_STR-SPBUP sy-vline 
WA_WISP_KEYS_SAP_M00_STR-SPBUP3 sy-vline 
WA_WISP_KEYS_SAP_M00_STR-SPWOC3 sy-vline 
WA_WISP_KEYS_SAP_M00_STR-SPMON3 sy-vline 
WA_WISP_KEYS_SAP_M00_STR-GJAHR sy-vline 
WA_WISP_KEYS_SAP_M00_STR-SPTAG sy-vline 
WA_WISP_KEYS_SAP_M00_STR-SPTAG3 sy-vline      INTO ld_text SEPARATED BY SPACE.

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