ABAP Select data from SAP table HRCM_FIXED into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM HRCM_FIXED
*  INTO TABLE @DATA(IT_HRCM_FIXED2).
*--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_HRCM_FIXED INDEX 1 INTO DATA(WA_HRCM_FIXED2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<HRCM_FIXED>-BEGDA = 1.
<HRCM_FIXED>-ENDDA = 1.
<HRCM_FIXED>-CAREA = 1.
<HRCM_FIXED>-CTYPE = 1.
<HRCM_FIXED>-CPLAN = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_HRCM_FIXED-CSTAT, sy-vline,
  WA_HRCM_FIXED-CPROC, sy-vline,
  WA_HRCM_FIXED-CPIND, sy-vline,
  WA_HRCM_FIXED-TRFAR, sy-vline,
  WA_HRCM_FIXED-TRFGB, sy-vline,
  WA_HRCM_FIXED-TRFGR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_HRCM_FIXED 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_HRCM_FIXED 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_HRCM_FIXED INTO WA_HRCM_FIXED.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_HRCM_FIXED_STR, 
BEGDA TYPE STRING,
ENDDA TYPE STRING,
CAREA TYPE STRING,
CTYPE TYPE STRING,
CPLAN TYPE STRING,
CSTAT TYPE STRING,
CPROC TYPE STRING,
CPIND TYPE STRING,
TRFAR TYPE STRING,
TRFGB TYPE STRING,
TRFGR TYPE STRING,
TRFST TYPE STRING,
BSWGT TYPE STRING,
BSSAL TYPE STRING,
BSCUR TYPE STRING,
BSDTE TYPE STRING,
INTVL TYPE STRING,
ADINT TYPE STRING,
UNITS TYPE STRING,
WAERS TYPE STRING,
LGA01 TYPE STRING,
PCT01 TYPE STRING,
BET01 TYPE STRING,
ANZ01 TYPE STRING,
LGA02 TYPE STRING,
PCT02 TYPE STRING,
BET02 TYPE STRING,
ANZ02 TYPE STRING,
LGA03 TYPE STRING,
PCT03 TYPE STRING,
BET03 TYPE STRING,
ANZ03 TYPE STRING,
LGA04 TYPE STRING,
PCT04 TYPE STRING,
BET04 TYPE STRING,
ANZ04 TYPE STRING,
LGA05 TYPE STRING,
PCT05 TYPE STRING,
BET05 TYPE STRING,
ANZ05 TYPE STRING,
LGA06 TYPE STRING,
PCT06 TYPE STRING,
BET06 TYPE STRING,
ANZ06 TYPE STRING,
LGA07 TYPE STRING,
PCT07 TYPE STRING,
BET07 TYPE STRING,
ANZ07 TYPE STRING,
LGA08 TYPE STRING,
PCT08 TYPE STRING,
BET08 TYPE STRING,
ANZ08 TYPE STRING,
LGA09 TYPE STRING,
PCT09 TYPE STRING,
BET09 TYPE STRING,
ANZ09 TYPE STRING,
LGA10 TYPE STRING,
PCT10 TYPE STRING,
BET10 TYPE STRING,
ANZ10 TYPE STRING,
EFFDA TYPE STRING,
CTEXT TYPE STRING,
BUDGET TYPE STRING,
ALLOC TYPE STRING,
CURCY TYPE STRING,
NBSAL TYPE STRING,
BPCNT TYPE STRING,
APCNT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_HRCM_FIXED_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_HRCM_FIXED_STR-BEGDA sy-vline 
WA_HRCM_FIXED_STR-ENDDA sy-vline 
WA_HRCM_FIXED_STR-CAREA sy-vline 
WA_HRCM_FIXED_STR-CTYPE sy-vline 
WA_HRCM_FIXED_STR-CPLAN sy-vline 
WA_HRCM_FIXED_STR-CSTAT sy-vline 
WA_HRCM_FIXED_STR-CPROC sy-vline 
WA_HRCM_FIXED_STR-CPIND sy-vline 
WA_HRCM_FIXED_STR-TRFAR sy-vline 
WA_HRCM_FIXED_STR-TRFGB sy-vline 
WA_HRCM_FIXED_STR-TRFGR sy-vline 
WA_HRCM_FIXED_STR-TRFST sy-vline 
WA_HRCM_FIXED_STR-BSWGT sy-vline 
WA_HRCM_FIXED_STR-BSSAL sy-vline 
WA_HRCM_FIXED_STR-BSCUR sy-vline 
WA_HRCM_FIXED_STR-BSDTE sy-vline 
WA_HRCM_FIXED_STR-INTVL sy-vline 
WA_HRCM_FIXED_STR-ADINT sy-vline 
WA_HRCM_FIXED_STR-UNITS sy-vline 
WA_HRCM_FIXED_STR-WAERS sy-vline 
WA_HRCM_FIXED_STR-LGA01 sy-vline 
WA_HRCM_FIXED_STR-PCT01 sy-vline 
WA_HRCM_FIXED_STR-BET01 sy-vline 
WA_HRCM_FIXED_STR-ANZ01 sy-vline 
WA_HRCM_FIXED_STR-LGA02 sy-vline 
WA_HRCM_FIXED_STR-PCT02 sy-vline 
WA_HRCM_FIXED_STR-BET02 sy-vline 
WA_HRCM_FIXED_STR-ANZ02 sy-vline 
WA_HRCM_FIXED_STR-LGA03 sy-vline 
WA_HRCM_FIXED_STR-PCT03 sy-vline 
WA_HRCM_FIXED_STR-BET03 sy-vline 
WA_HRCM_FIXED_STR-ANZ03 sy-vline 
WA_HRCM_FIXED_STR-LGA04 sy-vline 
WA_HRCM_FIXED_STR-PCT04 sy-vline 
WA_HRCM_FIXED_STR-BET04 sy-vline 
WA_HRCM_FIXED_STR-ANZ04 sy-vline 
WA_HRCM_FIXED_STR-LGA05 sy-vline 
WA_HRCM_FIXED_STR-PCT05 sy-vline 
WA_HRCM_FIXED_STR-BET05 sy-vline 
WA_HRCM_FIXED_STR-ANZ05 sy-vline 
WA_HRCM_FIXED_STR-LGA06 sy-vline 
WA_HRCM_FIXED_STR-PCT06 sy-vline 
WA_HRCM_FIXED_STR-BET06 sy-vline 
WA_HRCM_FIXED_STR-ANZ06 sy-vline 
WA_HRCM_FIXED_STR-LGA07 sy-vline 
WA_HRCM_FIXED_STR-PCT07 sy-vline 
WA_HRCM_FIXED_STR-BET07 sy-vline 
WA_HRCM_FIXED_STR-ANZ07 sy-vline 
WA_HRCM_FIXED_STR-LGA08 sy-vline 
WA_HRCM_FIXED_STR-PCT08 sy-vline 
WA_HRCM_FIXED_STR-BET08 sy-vline 
WA_HRCM_FIXED_STR-ANZ08 sy-vline 
WA_HRCM_FIXED_STR-LGA09 sy-vline 
WA_HRCM_FIXED_STR-PCT09 sy-vline 
WA_HRCM_FIXED_STR-BET09 sy-vline 
WA_HRCM_FIXED_STR-ANZ09 sy-vline 
WA_HRCM_FIXED_STR-LGA10 sy-vline 
WA_HRCM_FIXED_STR-PCT10 sy-vline 
WA_HRCM_FIXED_STR-BET10 sy-vline 
WA_HRCM_FIXED_STR-ANZ10 sy-vline 
WA_HRCM_FIXED_STR-EFFDA sy-vline 
WA_HRCM_FIXED_STR-CTEXT sy-vline 
WA_HRCM_FIXED_STR-BUDGET sy-vline 
WA_HRCM_FIXED_STR-ALLOC sy-vline 
WA_HRCM_FIXED_STR-CURCY sy-vline 
WA_HRCM_FIXED_STR-NBSAL sy-vline 
WA_HRCM_FIXED_STR-BPCNT sy-vline 
WA_HRCM_FIXED_STR-APCNT sy-vline      INTO ld_text SEPARATED BY SPACE.

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