ABAP Select data from SAP table WISP_CMFC into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP WISP_CMFC 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_CMFC. 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_CMFC 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_CMFC TYPE STANDARD TABLE OF WISP_CMFC,
      WA_WISP_CMFC TYPE WISP_CMFC,
      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_CMFC> TYPE WISP_CMFC.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM WISP_CMFC
*  INTO TABLE @DATA(IT_WISP_CMFC2).
*--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_CMFC INDEX 1 INTO DATA(WA_WISP_CMFC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<WISP_CMFC>-VKORG = 1.
<WISP_CMFC>-VTWEG = 1.
<WISP_CMFC>-CDT1 = 1.
<WISP_CMFC>-CDT2 = 1.
<WISP_CMFC>-CDT3 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_WISP_CMFC-CDT4, sy-vline,
  WA_WISP_CMFC-CDT5, sy-vline,
  WA_WISP_CMFC-CDT6, sy-vline,
  WA_WISP_CMFC-CDT7, sy-vline,
  WA_WISP_CMFC-MATNR, sy-vline,
  WA_WISP_CMFC-SSTUF, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_WISP_CMFC 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_CMFC 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_CMFC INTO WA_WISP_CMFC.


*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_WISP_CMFC-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WISP_CMFC-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field BASME
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_WISP_CMFC-BASME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WISP_CMFC-BASME.
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_CMFC_STR, 
VKORG TYPE STRING,
VTWEG TYPE STRING,
CDT1 TYPE STRING,
CDT2 TYPE STRING,
CDT3 TYPE STRING,
CDT4 TYPE STRING,
CDT5 TYPE STRING,
CDT6 TYPE STRING,
CDT7 TYPE STRING,
MATNR TYPE STRING,
SSTUF TYPE STRING,
BZIRK TYPE STRING,
BSTGEO TYPE STRING,
UMSGVO TYPE STRING,
PSWAE TYPE STRING,
BASME TYPE STRING,
UMSGVP TYPE STRING,
UMSGEO TYPE STRING,
UMSMNG TYPE STRING,
CM_RANK TYPE STRING,
CM_GUMSA_E TYPE STRING,
CM_SOANT_E TYPE STRING,
CM_UMANT_E TYPE STRING,
CM_LISTED TYPE STRING,
CM_AZART TYPE STRING,
CM_UMMKT_E TYPE STRING,
CM_AZART_E TYPE STRING,
CM_UMSTC_E TYPE STRING,
CM_TAVAL_E TYPE STRING,
CM_AZPRM TYPE STRING,
CM_PTRTC_E TYPE STRING,
CM_PFQTC_E TYPE STRING,
CM_SRVCLEV TYPE STRING,
CM_UMSVO_E TYPE STRING,
CM_PFQ_E TYPE STRING,
CM_GUMAN_E TYPE STRING,
CM_ABDSG_E TYPE STRING,
CM_ABDSS_E TYPE STRING,
CM_CLOSR_E TYPE STRING,
CM_STREV_E TYPE STRING,
BKIMVO TYPE STRING,
CM_SHLFSPC TYPE STRING,
CM_NSTORES TYPE STRING,
CM_SRVCLEL TYPE STRING,
CM_CUSTF_E TYPE STRING,
CM_AZKON_E TYPE STRING,
CM_AZKUN_E TYPE STRING,
CM_MGRWT_E TYPE STRING,
CM_AVGUB_E TYPE STRING,
CM_AVGPR_E TYPE STRING,
CM_PENTR_E TYPE STRING,
HIER_ID TYPE STRING,
CM_LAND1 TYPE STRING,
REGIO TYPE STRING,
REL_UMSMNG TYPE STRING,
REL_UMSGVO TYPE STRING,
REL_UMSGEO TYPE STRING,
REL_MARGE TYPE STRING,
INDEX1 TYPE STRING,
INDEX2 TYPE STRING,
INDEX3 TYPE STRING,
STRATEGY TYPE STRING,
CM_LISTTOP TYPE STRING,
CM_LISTCOV TYPE STRING,
CM_LISTACT TYPE STRING,
CM_EAN11 TYPE STRING,
CM_SHLFPRC TYPE STRING,
AUMGVO TYPE STRING,
AUMMNG TYPE STRING,
AUMGEO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_WISP_CMFC_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_CMFC_STR-VKORG sy-vline 
WA_WISP_CMFC_STR-VTWEG sy-vline 
WA_WISP_CMFC_STR-CDT1 sy-vline 
WA_WISP_CMFC_STR-CDT2 sy-vline 
WA_WISP_CMFC_STR-CDT3 sy-vline 
WA_WISP_CMFC_STR-CDT4 sy-vline 
WA_WISP_CMFC_STR-CDT5 sy-vline 
WA_WISP_CMFC_STR-CDT6 sy-vline 
WA_WISP_CMFC_STR-CDT7 sy-vline 
WA_WISP_CMFC_STR-MATNR sy-vline 
WA_WISP_CMFC_STR-SSTUF sy-vline 
WA_WISP_CMFC_STR-BZIRK sy-vline 
WA_WISP_CMFC_STR-BSTGEO sy-vline 
WA_WISP_CMFC_STR-UMSGVO sy-vline 
WA_WISP_CMFC_STR-PSWAE sy-vline 
WA_WISP_CMFC_STR-BASME sy-vline 
WA_WISP_CMFC_STR-UMSGVP sy-vline 
WA_WISP_CMFC_STR-UMSGEO sy-vline 
WA_WISP_CMFC_STR-UMSMNG sy-vline 
WA_WISP_CMFC_STR-CM_RANK sy-vline 
WA_WISP_CMFC_STR-CM_GUMSA_E sy-vline 
WA_WISP_CMFC_STR-CM_SOANT_E sy-vline 
WA_WISP_CMFC_STR-CM_UMANT_E sy-vline 
WA_WISP_CMFC_STR-CM_LISTED sy-vline 
WA_WISP_CMFC_STR-CM_AZART sy-vline 
WA_WISP_CMFC_STR-CM_UMMKT_E sy-vline 
WA_WISP_CMFC_STR-CM_AZART_E sy-vline 
WA_WISP_CMFC_STR-CM_UMSTC_E sy-vline 
WA_WISP_CMFC_STR-CM_TAVAL_E sy-vline 
WA_WISP_CMFC_STR-CM_AZPRM sy-vline 
WA_WISP_CMFC_STR-CM_PTRTC_E sy-vline 
WA_WISP_CMFC_STR-CM_PFQTC_E sy-vline 
WA_WISP_CMFC_STR-CM_SRVCLEV sy-vline 
WA_WISP_CMFC_STR-CM_UMSVO_E sy-vline 
WA_WISP_CMFC_STR-CM_PFQ_E sy-vline 
WA_WISP_CMFC_STR-CM_GUMAN_E sy-vline 
WA_WISP_CMFC_STR-CM_ABDSG_E sy-vline 
WA_WISP_CMFC_STR-CM_ABDSS_E sy-vline 
WA_WISP_CMFC_STR-CM_CLOSR_E sy-vline 
WA_WISP_CMFC_STR-CM_STREV_E sy-vline 
WA_WISP_CMFC_STR-BKIMVO sy-vline 
WA_WISP_CMFC_STR-CM_SHLFSPC sy-vline 
WA_WISP_CMFC_STR-CM_NSTORES sy-vline 
WA_WISP_CMFC_STR-CM_SRVCLEL sy-vline 
WA_WISP_CMFC_STR-CM_CUSTF_E sy-vline 
WA_WISP_CMFC_STR-CM_AZKON_E sy-vline 
WA_WISP_CMFC_STR-CM_AZKUN_E sy-vline 
WA_WISP_CMFC_STR-CM_MGRWT_E sy-vline 
WA_WISP_CMFC_STR-CM_AVGUB_E sy-vline 
WA_WISP_CMFC_STR-CM_AVGPR_E sy-vline 
WA_WISP_CMFC_STR-CM_PENTR_E sy-vline 
WA_WISP_CMFC_STR-HIER_ID sy-vline 
WA_WISP_CMFC_STR-CM_LAND1 sy-vline 
WA_WISP_CMFC_STR-REGIO sy-vline 
WA_WISP_CMFC_STR-REL_UMSMNG sy-vline 
WA_WISP_CMFC_STR-REL_UMSGVO sy-vline 
WA_WISP_CMFC_STR-REL_UMSGEO sy-vline 
WA_WISP_CMFC_STR-REL_MARGE sy-vline 
WA_WISP_CMFC_STR-INDEX1 sy-vline 
WA_WISP_CMFC_STR-INDEX2 sy-vline 
WA_WISP_CMFC_STR-INDEX3 sy-vline 
WA_WISP_CMFC_STR-STRATEGY sy-vline 
WA_WISP_CMFC_STR-CM_LISTTOP sy-vline 
WA_WISP_CMFC_STR-CM_LISTCOV sy-vline 
WA_WISP_CMFC_STR-CM_LISTACT sy-vline 
WA_WISP_CMFC_STR-CM_EAN11 sy-vline 
WA_WISP_CMFC_STR-CM_SHLFPRC sy-vline 
WA_WISP_CMFC_STR-AUMGVO sy-vline 
WA_WISP_CMFC_STR-AUMMNG sy-vline 
WA_WISP_CMFC_STR-AUMGEO sy-vline      INTO ld_text SEPARATED BY SPACE.

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