ABAP Select data from SAP table HRDEAVLIST into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM HRDEAVLIST
*  INTO TABLE @DATA(IT_HRDEAVLIST2).
*--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_HRDEAVLIST INDEX 1 INTO DATA(WA_HRDEAVLIST2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<HRDEAVLIST>-AINTX = 1.
<HRDEAVLIST>-ANNUM = 1.
<HRDEAVLIST>-AINSL = 1.
<HRDEAVLIST>-PERNR = 1.
<HRDEAVLIST>-NACHN = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_HRDEAVLIST-VORNA, sy-vline,
  WA_HRDEAVLIST-GBDAT, sy-vline,
  WA_HRDEAVLIST-BEITE, sy-vline,
  WA_HRDEAVLIST-BEITF, sy-vline,
  WA_HRDEAVLIST-BEITR, sy-vline,
  WA_HRDEAVLIST-BEITS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_HRDEAVLIST 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_HRDEAVLIST 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_HRDEAVLIST INTO WA_HRDEAVLIST.


*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 GBDAT
CALL FUNCTION 'CONVERSION_EXIT_PDATE_OUTPUT'
  EXPORTING
    input =                      WA_HRDEAVLIST-GBDAT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_HRDEAVLIST-GBDAT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field FABRJ
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_HRDEAVLIST-FABRJ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_HRDEAVLIST-FABRJ.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field IABRJ
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_HRDEAVLIST-IABRJ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_HRDEAVLIST-IABRJ.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KOSTL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_HRDEAVLIST-KOSTL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_HRDEAVLIST-KOSTL.
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_HRDEAVLIST_STR, 
AINTX TYPE STRING,
ANNUM TYPE STRING,
AINSL TYPE STRING,
PERNR TYPE STRING,
NACHN TYPE STRING,
VORNA TYPE STRING,
GBDAT TYPE STRING,
BEITE TYPE STRING,
BEITF TYPE STRING,
BEITR TYPE STRING,
BEITS TYPE STRING,
BEITP TYPE STRING,
BEITI TYPE STRING,
BEITZ TYPE STRING,
BEITW TYPE STRING,
BEITG TYPE STRING,
WAERS TYPE STRING,
FABRJ TYPE STRING,
FABRP TYPE STRING,
IABRJ TYPE STRING,
IABRP TYPE STRING,
BUKRS TYPE STRING,
BUKRS_TXT TYPE STRING,
WERKS TYPE STRING,
WERKS_TXT TYPE STRING,
BTRTL TYPE STRING,
BTRTL_TXT TYPE STRING,
JUPER TYPE STRING,
PERSG TYPE STRING,
PERSG_TXT TYPE STRING,
PERSK TYPE STRING,
PERSK_TXT TYPE STRING,
ABKRS TYPE STRING,
ABKRS_TXT TYPE STRING,
KOSTL TYPE STRING,
KOSTL_TXT TYPE STRING,
ANLAR TYPE STRING,
BAUST TYPE STRING,
LGART TYPE STRING,
LGART_TXT TYPE STRING,
BANKL TYPE STRING,
BANKN TYPE STRING,
EMFTX TYPE STRING,
EUKNZ TYPE STRING,
KNZRR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_HRDEAVLIST_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_HRDEAVLIST_STR-AINTX sy-vline 
WA_HRDEAVLIST_STR-ANNUM sy-vline 
WA_HRDEAVLIST_STR-AINSL sy-vline 
WA_HRDEAVLIST_STR-PERNR sy-vline 
WA_HRDEAVLIST_STR-NACHN sy-vline 
WA_HRDEAVLIST_STR-VORNA sy-vline 
WA_HRDEAVLIST_STR-GBDAT sy-vline 
WA_HRDEAVLIST_STR-BEITE sy-vline 
WA_HRDEAVLIST_STR-BEITF sy-vline 
WA_HRDEAVLIST_STR-BEITR sy-vline 
WA_HRDEAVLIST_STR-BEITS sy-vline 
WA_HRDEAVLIST_STR-BEITP sy-vline 
WA_HRDEAVLIST_STR-BEITI sy-vline 
WA_HRDEAVLIST_STR-BEITZ sy-vline 
WA_HRDEAVLIST_STR-BEITW sy-vline 
WA_HRDEAVLIST_STR-BEITG sy-vline 
WA_HRDEAVLIST_STR-WAERS sy-vline 
WA_HRDEAVLIST_STR-FABRJ sy-vline 
WA_HRDEAVLIST_STR-FABRP sy-vline 
WA_HRDEAVLIST_STR-IABRJ sy-vline 
WA_HRDEAVLIST_STR-IABRP sy-vline 
WA_HRDEAVLIST_STR-BUKRS sy-vline 
WA_HRDEAVLIST_STR-BUKRS_TXT sy-vline 
WA_HRDEAVLIST_STR-WERKS sy-vline 
WA_HRDEAVLIST_STR-WERKS_TXT sy-vline 
WA_HRDEAVLIST_STR-BTRTL sy-vline 
WA_HRDEAVLIST_STR-BTRTL_TXT sy-vline 
WA_HRDEAVLIST_STR-JUPER sy-vline 
WA_HRDEAVLIST_STR-PERSG sy-vline 
WA_HRDEAVLIST_STR-PERSG_TXT sy-vline 
WA_HRDEAVLIST_STR-PERSK sy-vline 
WA_HRDEAVLIST_STR-PERSK_TXT sy-vline 
WA_HRDEAVLIST_STR-ABKRS sy-vline 
WA_HRDEAVLIST_STR-ABKRS_TXT sy-vline 
WA_HRDEAVLIST_STR-KOSTL sy-vline 
WA_HRDEAVLIST_STR-KOSTL_TXT sy-vline 
WA_HRDEAVLIST_STR-ANLAR sy-vline 
WA_HRDEAVLIST_STR-BAUST sy-vline 
WA_HRDEAVLIST_STR-LGART sy-vline 
WA_HRDEAVLIST_STR-LGART_TXT sy-vline 
WA_HRDEAVLIST_STR-BANKL sy-vline 
WA_HRDEAVLIST_STR-BANKN sy-vline 
WA_HRDEAVLIST_STR-EMFTX sy-vline 
WA_HRDEAVLIST_STR-EUKNZ sy-vline 
WA_HRDEAVLIST_STR-KNZRR sy-vline      INTO ld_text SEPARATED BY SPACE.

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