ABAP Select data from SAP table HCMT_BSP_PA_KW_R0021 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP HCMT_BSP_PA_KW_R0021 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 HCMT_BSP_PA_KW_R0021. 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 HCMT_BSP_PA_KW_R0021 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_HCMT_BSP_PA_KW_R0021 TYPE STANDARD TABLE OF HCMT_BSP_PA_KW_R0021,
      WA_HCMT_BSP_PA_KW_R0021 TYPE HCMT_BSP_PA_KW_R0021,
      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: <HCMT_BSP_PA_KW_R0021> TYPE HCMT_BSP_PA_KW_R0021.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_HCMT_BSP_PA_KW_R0021.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM HCMT_BSP_PA_KW_R0021
  INTO TABLE IT_HCMT_BSP_PA_KW_R0021.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM HCMT_BSP_PA_KW_R0021
*  INTO TABLE @DATA(IT_HCMT_BSP_PA_KW_R00212).
*--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_HCMT_BSP_PA_KW_R0021 INDEX 1 INTO DATA(WA_HCMT_BSP_PA_KW_R00212).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_HCMT_BSP_PA_KW_R0021 ASSIGNING <HCMT_BSP_PA_KW_R0021>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<HCMT_BSP_PA_KW_R0021>-OBJECT_KEY = 1.
<HCMT_BSP_PA_KW_R0021>-PERNR = 1.
<HCMT_BSP_PA_KW_R0021>-AEDTM = 1.
<HCMT_BSP_PA_KW_R0021>-UNAME = 1.
<HCMT_BSP_PA_KW_R0021>-SPRPS = 1.

ENDLOOP.

LOOP AT IT_HCMT_BSP_PA_KW_R0021 INTO WA_HCMT_BSP_PA_KW_R0021.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_HCMT_BSP_PA_KW_R0021-SPRTX, sy-vline,
  WA_HCMT_BSP_PA_KW_R0021-ITBLD, sy-vline,
  WA_HCMT_BSP_PA_KW_R0021-ITXEX, sy-vline,
  WA_HCMT_BSP_PA_KW_R0021-BEGDA, sy-vline,
  WA_HCMT_BSP_PA_KW_R0021-ENDDA, sy-vline,
  WA_HCMT_BSP_PA_KW_R0021-OBJPS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_HCMT_BSP_PA_KW_R0021 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_HCMT_BSP_PA_KW_R0021 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_HCMT_BSP_PA_KW_R0021 INTO WA_HCMT_BSP_PA_KW_R0021.


*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 PDATE, internal->external for field FGBDT
CALL FUNCTION 'CONVERSION_EXIT_PDATE_OUTPUT'
  EXPORTING
    input =                      WA_HCMT_BSP_PA_KW_R0021-FGBDT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_HCMT_BSP_PA_KW_R0021-FGBDT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AHVNR, internal->external for field AHVNR
CALL FUNCTION 'CONVERSION_EXIT_AHVNR_OUTPUT'
  EXPORTING
    input =                      WA_HCMT_BSP_PA_KW_R0021-AHVNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_HCMT_BSP_PA_KW_R0021-AHVNR.
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_HCMT_BSP_PA_KW_R0021_STR, 
OBJECT_KEY TYPE STRING,
PERNR TYPE STRING,
AEDTM TYPE STRING,
UNAME TYPE STRING,
SPRPS TYPE STRING,
SPRTX TYPE STRING,
ITBLD TYPE STRING,
ITXEX TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,
OBJPS TYPE STRING,
FAMSA TYPE STRING,
STEXT TYPE STRING,
FGBDT TYPE STRING,
FGBLD TYPE STRING,
FGLTX TYPE STRING,
FANAT TYPE STRING,
FANTX TYPE STRING,
FASEX TYPE STRING,
SETXT TYPE STRING,
FAVOR TYPE STRING,
FANAM TYPE STRING,
FGBOT TYPE STRING,
FGDEP TYPE STRING,
ERBNR TYPE STRING,
FGBNA TYPE STRING,
FNAC2 TYPE STRING,
FCNAM TYPE STRING,
FKNZN TYPE STRING,
FINIT TYPE STRING,
FVRSW TYPE STRING,
FVRS2 TYPE STRING,
FNMZU TYPE STRING,
AHVNR TYPE STRING,
KDSVH TYPE STRING,
KDBSL TYPE STRING,
KDUTB TYPE STRING,
KDGBR TYPE STRING,
KDART TYPE STRING,
KDZUG TYPE STRING,
KDZUL TYPE STRING,
KDVBE TYPE STRING,
ERMNR TYPE STRING,
AUSVL TYPE STRING,
AUSVG TYPE STRING,
FASDT TYPE STRING,
FASAR TYPE STRING,
FASIN TYPE STRING,
EGAGA TYPE STRING,
FANA2 TYPE STRING,
F2NAT TYPE STRING,
FANA3 TYPE STRING,
F3NAT TYPE STRING,
BETRG TYPE STRING,
TITEL TYPE STRING,
EMRGN TYPE STRING,
ARFNM TYPE STRING,
ARSNM TYPE STRING,
ARTNM TYPE STRING,
ARLNM TYPE STRING,
VSNUM TYPE STRING,
VSEXP TYPE STRING,
IQNUM TYPE STRING,
IQEXP TYPE STRING,
DLNUM TYPE STRING,
DLEXP TYPE STRING,
LPAPD TYPE STRING,
KTART TYPE STRING,
VSISS TYPE STRING,
IQISS TYPE STRING,
DLISS TYPE STRING,
PSNUM TYPE STRING,
PSISS TYPE STRING,
PSEXP TYPE STRING,
DOCT1 TYPE STRING,
DC1TX TYPE STRING,
IDNUM TYPE STRING,
IDISS TYPE STRING,
IDEXP TYPE STRING,
LPAPQ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_HCMT_BSP_PA_KW_R0021_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_HCMT_BSP_PA_KW_R0021_STR-OBJECT_KEY sy-vline 
WA_HCMT_BSP_PA_KW_R0021_STR-PERNR sy-vline 
WA_HCMT_BSP_PA_KW_R0021_STR-AEDTM sy-vline 
WA_HCMT_BSP_PA_KW_R0021_STR-UNAME sy-vline 
WA_HCMT_BSP_PA_KW_R0021_STR-SPRPS sy-vline 
WA_HCMT_BSP_PA_KW_R0021_STR-SPRTX sy-vline 
WA_HCMT_BSP_PA_KW_R0021_STR-ITBLD sy-vline 
WA_HCMT_BSP_PA_KW_R0021_STR-ITXEX sy-vline 
WA_HCMT_BSP_PA_KW_R0021_STR-BEGDA sy-vline 
WA_HCMT_BSP_PA_KW_R0021_STR-ENDDA sy-vline 
WA_HCMT_BSP_PA_KW_R0021_STR-OBJPS sy-vline 
WA_HCMT_BSP_PA_KW_R0021_STR-FAMSA sy-vline 
WA_HCMT_BSP_PA_KW_R0021_STR-STEXT sy-vline 
WA_HCMT_BSP_PA_KW_R0021_STR-FGBDT sy-vline 
WA_HCMT_BSP_PA_KW_R0021_STR-FGBLD sy-vline 
WA_HCMT_BSP_PA_KW_R0021_STR-FGLTX sy-vline 
WA_HCMT_BSP_PA_KW_R0021_STR-FANAT sy-vline 
WA_HCMT_BSP_PA_KW_R0021_STR-FANTX sy-vline 
WA_HCMT_BSP_PA_KW_R0021_STR-FASEX sy-vline 
WA_HCMT_BSP_PA_KW_R0021_STR-SETXT sy-vline 
WA_HCMT_BSP_PA_KW_R0021_STR-FAVOR sy-vline 
WA_HCMT_BSP_PA_KW_R0021_STR-FANAM sy-vline 
WA_HCMT_BSP_PA_KW_R0021_STR-FGBOT sy-vline 
WA_HCMT_BSP_PA_KW_R0021_STR-FGDEP sy-vline 
WA_HCMT_BSP_PA_KW_R0021_STR-ERBNR sy-vline 
WA_HCMT_BSP_PA_KW_R0021_STR-FGBNA sy-vline 
WA_HCMT_BSP_PA_KW_R0021_STR-FNAC2 sy-vline 
WA_HCMT_BSP_PA_KW_R0021_STR-FCNAM sy-vline 
WA_HCMT_BSP_PA_KW_R0021_STR-FKNZN sy-vline 
WA_HCMT_BSP_PA_KW_R0021_STR-FINIT sy-vline 
WA_HCMT_BSP_PA_KW_R0021_STR-FVRSW sy-vline 
WA_HCMT_BSP_PA_KW_R0021_STR-FVRS2 sy-vline 
WA_HCMT_BSP_PA_KW_R0021_STR-FNMZU sy-vline 
WA_HCMT_BSP_PA_KW_R0021_STR-AHVNR sy-vline 
WA_HCMT_BSP_PA_KW_R0021_STR-KDSVH sy-vline 
WA_HCMT_BSP_PA_KW_R0021_STR-KDBSL sy-vline 
WA_HCMT_BSP_PA_KW_R0021_STR-KDUTB sy-vline 
WA_HCMT_BSP_PA_KW_R0021_STR-KDGBR sy-vline 
WA_HCMT_BSP_PA_KW_R0021_STR-KDART sy-vline 
WA_HCMT_BSP_PA_KW_R0021_STR-KDZUG sy-vline 
WA_HCMT_BSP_PA_KW_R0021_STR-KDZUL sy-vline 
WA_HCMT_BSP_PA_KW_R0021_STR-KDVBE sy-vline 
WA_HCMT_BSP_PA_KW_R0021_STR-ERMNR sy-vline 
WA_HCMT_BSP_PA_KW_R0021_STR-AUSVL sy-vline 
WA_HCMT_BSP_PA_KW_R0021_STR-AUSVG sy-vline 
WA_HCMT_BSP_PA_KW_R0021_STR-FASDT sy-vline 
WA_HCMT_BSP_PA_KW_R0021_STR-FASAR sy-vline 
WA_HCMT_BSP_PA_KW_R0021_STR-FASIN sy-vline 
WA_HCMT_BSP_PA_KW_R0021_STR-EGAGA sy-vline 
WA_HCMT_BSP_PA_KW_R0021_STR-FANA2 sy-vline 
WA_HCMT_BSP_PA_KW_R0021_STR-F2NAT sy-vline 
WA_HCMT_BSP_PA_KW_R0021_STR-FANA3 sy-vline 
WA_HCMT_BSP_PA_KW_R0021_STR-F3NAT sy-vline 
WA_HCMT_BSP_PA_KW_R0021_STR-BETRG sy-vline 
WA_HCMT_BSP_PA_KW_R0021_STR-TITEL sy-vline 
WA_HCMT_BSP_PA_KW_R0021_STR-EMRGN sy-vline 
WA_HCMT_BSP_PA_KW_R0021_STR-ARFNM sy-vline 
WA_HCMT_BSP_PA_KW_R0021_STR-ARSNM sy-vline 
WA_HCMT_BSP_PA_KW_R0021_STR-ARTNM sy-vline 
WA_HCMT_BSP_PA_KW_R0021_STR-ARLNM sy-vline 
WA_HCMT_BSP_PA_KW_R0021_STR-VSNUM sy-vline 
WA_HCMT_BSP_PA_KW_R0021_STR-VSEXP sy-vline 
WA_HCMT_BSP_PA_KW_R0021_STR-IQNUM sy-vline 
WA_HCMT_BSP_PA_KW_R0021_STR-IQEXP sy-vline 
WA_HCMT_BSP_PA_KW_R0021_STR-DLNUM sy-vline 
WA_HCMT_BSP_PA_KW_R0021_STR-DLEXP sy-vline 
WA_HCMT_BSP_PA_KW_R0021_STR-LPAPD sy-vline 
WA_HCMT_BSP_PA_KW_R0021_STR-KTART sy-vline 
WA_HCMT_BSP_PA_KW_R0021_STR-VSISS sy-vline 
WA_HCMT_BSP_PA_KW_R0021_STR-IQISS sy-vline 
WA_HCMT_BSP_PA_KW_R0021_STR-DLISS sy-vline 
WA_HCMT_BSP_PA_KW_R0021_STR-PSNUM sy-vline 
WA_HCMT_BSP_PA_KW_R0021_STR-PSISS sy-vline 
WA_HCMT_BSP_PA_KW_R0021_STR-PSEXP sy-vline 
WA_HCMT_BSP_PA_KW_R0021_STR-DOCT1 sy-vline 
WA_HCMT_BSP_PA_KW_R0021_STR-DC1TX sy-vline 
WA_HCMT_BSP_PA_KW_R0021_STR-IDNUM sy-vline 
WA_HCMT_BSP_PA_KW_R0021_STR-IDISS sy-vline 
WA_HCMT_BSP_PA_KW_R0021_STR-IDEXP sy-vline 
WA_HCMT_BSP_PA_KW_R0021_STR-LPAPQ sy-vline      INTO ld_text SEPARATED BY SPACE.

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