ABAP Select data from SAP table HCMT_BSP_PA_DK_R0442 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_DK_R0442 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_DK_R0442. 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_DK_R0442 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_DK_R0442 TYPE STANDARD TABLE OF HCMT_BSP_PA_DK_R0442,
      WA_HCMT_BSP_PA_DK_R0442 TYPE HCMT_BSP_PA_DK_R0442,
      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_DK_R0442> TYPE HCMT_BSP_PA_DK_R0442.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_HCMT_BSP_PA_DK_R0442.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM HCMT_BSP_PA_DK_R0442
  INTO TABLE IT_HCMT_BSP_PA_DK_R0442.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM HCMT_BSP_PA_DK_R0442
*  INTO TABLE @DATA(IT_HCMT_BSP_PA_DK_R04422).
*--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_DK_R0442 INDEX 1 INTO DATA(WA_HCMT_BSP_PA_DK_R04422).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_HCMT_BSP_PA_DK_R0442 ASSIGNING <HCMT_BSP_PA_DK_R0442>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<HCMT_BSP_PA_DK_R0442>-OBJECT_KEY = 1.
<HCMT_BSP_PA_DK_R0442>-PERNR = 1.
<HCMT_BSP_PA_DK_R0442>-AEDTM = 1.
<HCMT_BSP_PA_DK_R0442>-UNAME = 1.
<HCMT_BSP_PA_DK_R0442>-SPRPS = 1.

ENDLOOP.

LOOP AT IT_HCMT_BSP_PA_DK_R0442 INTO WA_HCMT_BSP_PA_DK_R0442.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_HCMT_BSP_PA_DK_R0442-SPRTX, sy-vline,
  WA_HCMT_BSP_PA_DK_R0442-ITBLD, sy-vline,
  WA_HCMT_BSP_PA_DK_R0442-ITXEX, sy-vline,
  WA_HCMT_BSP_PA_DK_R0442-BEGDA, sy-vline,
  WA_HCMT_BSP_PA_DK_R0442-ENDDA, sy-vline,
  WA_HCMT_BSP_PA_DK_R0442-VEHCL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_HCMT_BSP_PA_DK_R0442 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_DK_R0442 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_DK_R0442 INTO WA_HCMT_BSP_PA_DK_R0442.


*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 MAINNO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_HCMT_BSP_PA_DK_R0442-MAINNO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_HCMT_BSP_PA_DK_R0442-MAINNO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SUBNO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_HCMT_BSP_PA_DK_R0442-SUBNO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_HCMT_BSP_PA_DK_R0442-SUBNO.
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_DK_R0442_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,
VEHCL TYPE STRING,
STEXT TYPE STRING,
FACTO TYPE STRING,
FTEXT TYPE STRING,
EGTXT TYPE STRING,
MODEL TYPE STRING,
MTEXT TYPE STRING,
CUBIC TYPE STRING,
TTYDP TYPE STRING,
TDTXT TYPE STRING,
CO2EM TYPE STRING,
REGNO TYPE STRING,
RGNDA TYPE STRING,
BUYDA TYPE STRING,
BUKRS TYPE STRING,
ASTNO TYPE STRING,
MAINNO TYPE STRING,
SUBNO TYPE STRING,
TEXT TYPE STRING,
RANGE TYPE STRING,
UAVAL TYPE STRING,
REASN TYPE STRING,
LISTP TYPE STRING,
CLSTP TYPE STRING,
DSCNT TYPE STRING,
TDSCT TYPE STRING,
ACCSS TYPE STRING,
CACCS TYPE STRING,
ADDAC TYPE STRING,
LABEL_PAIDP TYPE STRING,
PAIDP TYPE STRING,
CPAID TYPE STRING,
LABEL_ONEPD TYPE STRING,
ONEPD TYPE STRING,
CALCB TYPE STRING,
BNFTV TYPE STRING,
CBNFT TYPE STRING,
LABEL_REGPD TYPE STRING,
REGPD TYPE STRING,
CRNCY TYPE STRING,
PAYMO TYPE STRING,
MODTX TYPE STRING,
CARRG TYPE STRING,
PKWTX TYPE STRING,
LABEL_CCSSC TYPE STRING,
CCSSC TYPE STRING,
PERTX TYPE STRING,END OF T_EKKO_STR.
DATA: WA_HCMT_BSP_PA_DK_R0442_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_DK_R0442_STR-OBJECT_KEY sy-vline 
WA_HCMT_BSP_PA_DK_R0442_STR-PERNR sy-vline 
WA_HCMT_BSP_PA_DK_R0442_STR-AEDTM sy-vline 
WA_HCMT_BSP_PA_DK_R0442_STR-UNAME sy-vline 
WA_HCMT_BSP_PA_DK_R0442_STR-SPRPS sy-vline 
WA_HCMT_BSP_PA_DK_R0442_STR-SPRTX sy-vline 
WA_HCMT_BSP_PA_DK_R0442_STR-ITBLD sy-vline 
WA_HCMT_BSP_PA_DK_R0442_STR-ITXEX sy-vline 
WA_HCMT_BSP_PA_DK_R0442_STR-BEGDA sy-vline 
WA_HCMT_BSP_PA_DK_R0442_STR-ENDDA sy-vline 
WA_HCMT_BSP_PA_DK_R0442_STR-VEHCL sy-vline 
WA_HCMT_BSP_PA_DK_R0442_STR-STEXT sy-vline 
WA_HCMT_BSP_PA_DK_R0442_STR-FACTO sy-vline 
WA_HCMT_BSP_PA_DK_R0442_STR-FTEXT sy-vline 
WA_HCMT_BSP_PA_DK_R0442_STR-EGTXT sy-vline 
WA_HCMT_BSP_PA_DK_R0442_STR-MODEL sy-vline 
WA_HCMT_BSP_PA_DK_R0442_STR-MTEXT sy-vline 
WA_HCMT_BSP_PA_DK_R0442_STR-CUBIC sy-vline 
WA_HCMT_BSP_PA_DK_R0442_STR-TTYDP sy-vline 
WA_HCMT_BSP_PA_DK_R0442_STR-TDTXT sy-vline 
WA_HCMT_BSP_PA_DK_R0442_STR-CO2EM sy-vline 
WA_HCMT_BSP_PA_DK_R0442_STR-REGNO sy-vline 
WA_HCMT_BSP_PA_DK_R0442_STR-RGNDA sy-vline 
WA_HCMT_BSP_PA_DK_R0442_STR-BUYDA sy-vline 
WA_HCMT_BSP_PA_DK_R0442_STR-BUKRS sy-vline 
WA_HCMT_BSP_PA_DK_R0442_STR-ASTNO sy-vline 
WA_HCMT_BSP_PA_DK_R0442_STR-MAINNO sy-vline 
WA_HCMT_BSP_PA_DK_R0442_STR-SUBNO sy-vline 
WA_HCMT_BSP_PA_DK_R0442_STR-TEXT sy-vline 
WA_HCMT_BSP_PA_DK_R0442_STR-RANGE sy-vline 
WA_HCMT_BSP_PA_DK_R0442_STR-UAVAL sy-vline 
WA_HCMT_BSP_PA_DK_R0442_STR-REASN sy-vline 
WA_HCMT_BSP_PA_DK_R0442_STR-LISTP sy-vline 
WA_HCMT_BSP_PA_DK_R0442_STR-CLSTP sy-vline 
WA_HCMT_BSP_PA_DK_R0442_STR-DSCNT sy-vline 
WA_HCMT_BSP_PA_DK_R0442_STR-TDSCT sy-vline 
WA_HCMT_BSP_PA_DK_R0442_STR-ACCSS sy-vline 
WA_HCMT_BSP_PA_DK_R0442_STR-CACCS sy-vline 
WA_HCMT_BSP_PA_DK_R0442_STR-ADDAC sy-vline 
WA_HCMT_BSP_PA_DK_R0442_STR-LABEL_PAIDP sy-vline 
WA_HCMT_BSP_PA_DK_R0442_STR-PAIDP sy-vline 
WA_HCMT_BSP_PA_DK_R0442_STR-CPAID sy-vline 
WA_HCMT_BSP_PA_DK_R0442_STR-LABEL_ONEPD sy-vline 
WA_HCMT_BSP_PA_DK_R0442_STR-ONEPD sy-vline 
WA_HCMT_BSP_PA_DK_R0442_STR-CALCB sy-vline 
WA_HCMT_BSP_PA_DK_R0442_STR-BNFTV sy-vline 
WA_HCMT_BSP_PA_DK_R0442_STR-CBNFT sy-vline 
WA_HCMT_BSP_PA_DK_R0442_STR-LABEL_REGPD sy-vline 
WA_HCMT_BSP_PA_DK_R0442_STR-REGPD sy-vline 
WA_HCMT_BSP_PA_DK_R0442_STR-CRNCY sy-vline 
WA_HCMT_BSP_PA_DK_R0442_STR-PAYMO sy-vline 
WA_HCMT_BSP_PA_DK_R0442_STR-MODTX sy-vline 
WA_HCMT_BSP_PA_DK_R0442_STR-CARRG sy-vline 
WA_HCMT_BSP_PA_DK_R0442_STR-PKWTX sy-vline 
WA_HCMT_BSP_PA_DK_R0442_STR-LABEL_CCSSC sy-vline 
WA_HCMT_BSP_PA_DK_R0442_STR-CCSSC sy-vline 
WA_HCMT_BSP_PA_DK_R0442_STR-PERTX sy-vline      INTO ld_text SEPARATED BY SPACE.

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