ABAP Select data from SAP table HRMS_BIW_TV_DOC_HD_IT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM HRMS_BIW_TV_DOC_HD_IT
*  INTO TABLE @DATA(IT_HRMS_BIW_TV_DOC_HD_IT2).
*--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_HRMS_BIW_TV_DOC_HD_IT INDEX 1 INTO DATA(WA_HRMS_BIW_TV_DOC_HD_IT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<HRMS_BIW_TV_DOC_HD_IT>-PERNR = 1.
<HRMS_BIW_TV_DOC_HD_IT>-REINR = 1.
<HRMS_BIW_TV_DOC_HD_IT>-PERIO = 1.
<HRMS_BIW_TV_DOC_HD_IT>-PDVRS = 1.
<HRMS_BIW_TV_DOC_HD_IT>-AWREF = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_HRMS_BIW_TV_DOC_HD_IT-AWORG, sy-vline,
  WA_HRMS_BIW_TV_DOC_HD_IT-AWLIN, sy-vline,
  WA_HRMS_BIW_TV_DOC_HD_IT-ROT_LINE, sy-vline,
  WA_HRMS_BIW_TV_DOC_HD_IT-GLVOR, sy-vline,
  WA_HRMS_BIW_TV_DOC_HD_IT-BUKRS, sy-vline,
  WA_HRMS_BIW_TV_DOC_HD_IT-BUDAT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_HRMS_BIW_TV_DOC_HD_IT 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_HRMS_BIW_TV_DOC_HD_IT 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_HRMS_BIW_TV_DOC_HD_IT INTO WA_HRMS_BIW_TV_DOC_HD_IT.


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

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

*Conversion exit ALPHA, internal->external for field HKONT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_HRMS_BIW_TV_DOC_HD_IT-HKONT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_HRMS_BIW_TV_DOC_HD_IT-HKONT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LIFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_HRMS_BIW_TV_DOC_HD_IT-LIFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_HRMS_BIW_TV_DOC_HD_IT-LIFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KOSTL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_HRMS_BIW_TV_DOC_HD_IT-KOSTL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_HRMS_BIW_TV_DOC_HD_IT-KOSTL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AUFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_HRMS_BIW_TV_DOC_HD_IT-AUFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_HRMS_BIW_TV_DOC_HD_IT-AUFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSP, internal->external for field POSNR
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_HRMS_BIW_TV_DOC_HD_IT-POSNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_HRMS_BIW_TV_DOC_HD_IT-POSNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KDAUF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_HRMS_BIW_TV_DOC_HD_IT-KDAUF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_HRMS_BIW_TV_DOC_HD_IT-KDAUF.
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_HRMS_BIW_TV_DOC_HD_IT_STR, 
PERNR TYPE STRING,
REINR TYPE STRING,
PERIO TYPE STRING,
PDVRS TYPE STRING,
AWREF TYPE STRING,
AWORG TYPE STRING,
AWLIN TYPE STRING,
ROT_LINE TYPE STRING,
GLVOR TYPE STRING,
BUKRS TYPE STRING,
BUDAT TYPE STRING,
BLDAT TYPE STRING,
GJHAR TYPE STRING,
MONAT TYPE STRING,
BLART TYPE STRING,
RUNID TYPE STRING,
LEADING_BUKRS TYPE STRING,
KTOPL TYPE STRING,
UEBNR TYPE STRING,
KTOSL TYPE STRING,
HKONT TYPE STRING,
MWSKZ TYPE STRING,
LIFNR TYPE STRING,
GSBER TYPE STRING,
KOKRS TYPE STRING,
KOSTL TYPE STRING,
AUFNR TYPE STRING,
POSNR TYPE STRING,
KDAUF TYPE STRING,
FISTL TYPE STRING,
GEBER TYPE STRING,
DATV1 TYPE STRING,
DATB1 TYPE STRING,
WAERS TYPE STRING,
WRBTR TYPE STRING,
MOLGA TYPE STRING,
PYPER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_HRMS_BIW_TV_DOC_HD_IT_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_HRMS_BIW_TV_DOC_HD_IT_STR-PERNR sy-vline 
WA_HRMS_BIW_TV_DOC_HD_IT_STR-REINR sy-vline 
WA_HRMS_BIW_TV_DOC_HD_IT_STR-PERIO sy-vline 
WA_HRMS_BIW_TV_DOC_HD_IT_STR-PDVRS sy-vline 
WA_HRMS_BIW_TV_DOC_HD_IT_STR-AWREF sy-vline 
WA_HRMS_BIW_TV_DOC_HD_IT_STR-AWORG sy-vline 
WA_HRMS_BIW_TV_DOC_HD_IT_STR-AWLIN sy-vline 
WA_HRMS_BIW_TV_DOC_HD_IT_STR-ROT_LINE sy-vline 
WA_HRMS_BIW_TV_DOC_HD_IT_STR-GLVOR sy-vline 
WA_HRMS_BIW_TV_DOC_HD_IT_STR-BUKRS sy-vline 
WA_HRMS_BIW_TV_DOC_HD_IT_STR-BUDAT sy-vline 
WA_HRMS_BIW_TV_DOC_HD_IT_STR-BLDAT sy-vline 
WA_HRMS_BIW_TV_DOC_HD_IT_STR-GJHAR sy-vline 
WA_HRMS_BIW_TV_DOC_HD_IT_STR-MONAT sy-vline 
WA_HRMS_BIW_TV_DOC_HD_IT_STR-BLART sy-vline 
WA_HRMS_BIW_TV_DOC_HD_IT_STR-RUNID sy-vline 
WA_HRMS_BIW_TV_DOC_HD_IT_STR-LEADING_BUKRS sy-vline 
WA_HRMS_BIW_TV_DOC_HD_IT_STR-KTOPL sy-vline 
WA_HRMS_BIW_TV_DOC_HD_IT_STR-UEBNR sy-vline 
WA_HRMS_BIW_TV_DOC_HD_IT_STR-KTOSL sy-vline 
WA_HRMS_BIW_TV_DOC_HD_IT_STR-HKONT sy-vline 
WA_HRMS_BIW_TV_DOC_HD_IT_STR-MWSKZ sy-vline 
WA_HRMS_BIW_TV_DOC_HD_IT_STR-LIFNR sy-vline 
WA_HRMS_BIW_TV_DOC_HD_IT_STR-GSBER sy-vline 
WA_HRMS_BIW_TV_DOC_HD_IT_STR-KOKRS sy-vline 
WA_HRMS_BIW_TV_DOC_HD_IT_STR-KOSTL sy-vline 
WA_HRMS_BIW_TV_DOC_HD_IT_STR-AUFNR sy-vline 
WA_HRMS_BIW_TV_DOC_HD_IT_STR-POSNR sy-vline 
WA_HRMS_BIW_TV_DOC_HD_IT_STR-KDAUF sy-vline 
WA_HRMS_BIW_TV_DOC_HD_IT_STR-FISTL sy-vline 
WA_HRMS_BIW_TV_DOC_HD_IT_STR-GEBER sy-vline 
WA_HRMS_BIW_TV_DOC_HD_IT_STR-DATV1 sy-vline 
WA_HRMS_BIW_TV_DOC_HD_IT_STR-DATB1 sy-vline 
WA_HRMS_BIW_TV_DOC_HD_IT_STR-WAERS sy-vline 
WA_HRMS_BIW_TV_DOC_HD_IT_STR-WRBTR sy-vline 
WA_HRMS_BIW_TV_DOC_HD_IT_STR-MOLGA sy-vline 
WA_HRMS_BIW_TV_DOC_HD_IT_STR-PYPER sy-vline      INTO ld_text SEPARATED BY SPACE.

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