ABAP Select data from SAP table HRMS_BW_IO_APPLICANT into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP HRMS_BW_IO_APPLICANT 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_BW_IO_APPLICANT. 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_BW_IO_APPLICANT 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_BW_IO_APPLICANT TYPE STANDARD TABLE OF HRMS_BW_IO_APPLICANT,
      WA_HRMS_BW_IO_APPLICANT TYPE HRMS_BW_IO_APPLICANT,
      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_BW_IO_APPLICANT> TYPE HRMS_BW_IO_APPLICANT.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM HRMS_BW_IO_APPLICANT
*  INTO TABLE @DATA(IT_HRMS_BW_IO_APPLICANT2).
*--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_BW_IO_APPLICANT INDEX 1 INTO DATA(WA_HRMS_BW_IO_APPLICANT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<HRMS_BW_IO_APPLICANT>-BEGDA = 1.
<HRMS_BW_IO_APPLICANT>-ENDDA = 1.
<HRMS_BW_IO_APPLICANT>-PERNR = 1.
<HRMS_BW_IO_APPLICANT>-EMPNR = 1.
<HRMS_BW_IO_APPLICANT>-WERKS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_HRMS_BW_IO_APPLICANT-BTRTL, sy-vline,
  WA_HRMS_BW_IO_APPLICANT-APGRP, sy-vline,
  WA_HRMS_BW_IO_APPLICANT-APTYP, sy-vline,
  WA_HRMS_BW_IO_APPLICANT-RESRF, sy-vline,
  WA_HRMS_BW_IO_APPLICANT-PLANS, sy-vline,
  WA_HRMS_BW_IO_APPLICANT-GESCH, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_HRMS_BW_IO_APPLICANT 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_BW_IO_APPLICANT 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_BW_IO_APPLICANT INTO WA_HRMS_BW_IO_APPLICANT.


*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_HRMS_BW_IO_APPLICANT-GBDAT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_HRMS_BW_IO_APPLICANT-GBDAT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field SPRSL
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_HRMS_BW_IO_APPLICANT-SPRSL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_HRMS_BW_IO_APPLICANT-SPRSL.
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_BW_IO_APPLICANT_STR, 
BEGDA TYPE STRING,
ENDDA TYPE STRING,
PERNR TYPE STRING,
EMPNR TYPE STRING,
WERKS TYPE STRING,
BTRTL TYPE STRING,
APGRP TYPE STRING,
APTYP TYPE STRING,
RESRF TYPE STRING,
PLANS TYPE STRING,
GESCH TYPE STRING,
GBDAT TYPE STRING,
NATIO TYPE STRING,
SPRSL TYPE STRING,
APSTA TYPE STRING,
ORT01 TYPE STRING,
PSTLZ TYPE STRING,
LAND1 TYPE STRING,
STATE TYPE STRING,
COUNC TYPE STRING,END OF T_EKKO_STR.
DATA: WA_HRMS_BW_IO_APPLICANT_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_BW_IO_APPLICANT_STR-BEGDA sy-vline 
WA_HRMS_BW_IO_APPLICANT_STR-ENDDA sy-vline 
WA_HRMS_BW_IO_APPLICANT_STR-PERNR sy-vline 
WA_HRMS_BW_IO_APPLICANT_STR-EMPNR sy-vline 
WA_HRMS_BW_IO_APPLICANT_STR-WERKS sy-vline 
WA_HRMS_BW_IO_APPLICANT_STR-BTRTL sy-vline 
WA_HRMS_BW_IO_APPLICANT_STR-APGRP sy-vline 
WA_HRMS_BW_IO_APPLICANT_STR-APTYP sy-vline 
WA_HRMS_BW_IO_APPLICANT_STR-RESRF sy-vline 
WA_HRMS_BW_IO_APPLICANT_STR-PLANS sy-vline 
WA_HRMS_BW_IO_APPLICANT_STR-GESCH sy-vline 
WA_HRMS_BW_IO_APPLICANT_STR-GBDAT sy-vline 
WA_HRMS_BW_IO_APPLICANT_STR-NATIO sy-vline 
WA_HRMS_BW_IO_APPLICANT_STR-SPRSL sy-vline 
WA_HRMS_BW_IO_APPLICANT_STR-APSTA sy-vline 
WA_HRMS_BW_IO_APPLICANT_STR-ORT01 sy-vline 
WA_HRMS_BW_IO_APPLICANT_STR-PSTLZ sy-vline 
WA_HRMS_BW_IO_APPLICANT_STR-LAND1 sy-vline 
WA_HRMS_BW_IO_APPLICANT_STR-STATE sy-vline 
WA_HRMS_BW_IO_APPLICANT_STR-COUNC sy-vline      INTO ld_text SEPARATED BY SPACE.

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