ABAP Select data from SAP table COAFPOINF into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM COAFPOINF
*  INTO TABLE @DATA(IT_COAFPOINF2).
*--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_COAFPOINF INDEX 1 INTO DATA(WA_COAFPOINF2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<COAFPOINF>-INSNC = 1.
<COAFPOINF>-USEQU = 1.
<COAFPOINF>-FHWTX = 1.
<COAFPOINF>-SOPNR = 1.
<COAFPOINF>-KUNNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_COAFPOINF-NAME1, sy-vline,
  WA_COAFPOINF-KWMENG, sy-vline,
  WA_COAFPOINF-VRKME, sy-vline,
  WA_COAFPOINF-BMENG, sy-vline,
  WA_COAFPOINF-VSMNG, sy-vline,
  WA_COAFPOINF-KETDAT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_COAFPOINF 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_COAFPOINF 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_COAFPOINF INTO WA_COAFPOINF.


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

*Conversion exit CUNIT, internal->external for field VRKME
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_COAFPOINF-VRKME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COAFPOINF-VRKME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field WMEINH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_COAFPOINF-WMEINH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COAFPOINF-WMEINH.
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_COAFPOINF_STR, 
INSNC TYPE STRING,
USEQU TYPE STRING,
FHWTX TYPE STRING,
SOPNR TYPE STRING,
KUNNR TYPE STRING,
NAME1 TYPE STRING,
KWMENG TYPE STRING,
VRKME TYPE STRING,
BMENG TYPE STRING,
VSMNG TYPE STRING,
KETDAT TYPE STRING,
BDATU TYPE STRING,
STTXP TYPE STRING,
ORT01 TYPE STRING,
VDATU TYPE STRING,
PARBK TYPE STRING,
WPSMNG TYPE STRING,
WMEINH TYPE STRING,
KZWSO TYPE STRING,
EDATU TYPE STRING,
SERCOM TYPE STRING,
COMP_RES TYPE STRING,
NO_KALKPOS TYPE STRING,
EXT_CONVERSION TYPE STRING,END OF T_EKKO_STR.
DATA: WA_COAFPOINF_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_COAFPOINF_STR-INSNC sy-vline 
WA_COAFPOINF_STR-USEQU sy-vline 
WA_COAFPOINF_STR-FHWTX sy-vline 
WA_COAFPOINF_STR-SOPNR sy-vline 
WA_COAFPOINF_STR-KUNNR sy-vline 
WA_COAFPOINF_STR-NAME1 sy-vline 
WA_COAFPOINF_STR-KWMENG sy-vline 
WA_COAFPOINF_STR-VRKME sy-vline 
WA_COAFPOINF_STR-BMENG sy-vline 
WA_COAFPOINF_STR-VSMNG sy-vline 
WA_COAFPOINF_STR-KETDAT sy-vline 
WA_COAFPOINF_STR-BDATU sy-vline 
WA_COAFPOINF_STR-STTXP sy-vline 
WA_COAFPOINF_STR-ORT01 sy-vline 
WA_COAFPOINF_STR-VDATU sy-vline 
WA_COAFPOINF_STR-PARBK sy-vline 
WA_COAFPOINF_STR-WPSMNG sy-vline 
WA_COAFPOINF_STR-WMEINH sy-vline 
WA_COAFPOINF_STR-KZWSO sy-vline 
WA_COAFPOINF_STR-EDATU sy-vline 
WA_COAFPOINF_STR-SERCOM sy-vline 
WA_COAFPOINF_STR-COMP_RES sy-vline 
WA_COAFPOINF_STR-NO_KALKPOS sy-vline 
WA_COAFPOINF_STR-EXT_CONVERSION sy-vline      INTO ld_text SEPARATED BY SPACE.

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