ABAP Select data from SAP table GSHCM_HR_NL_WP_ACT_001_STR3 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP GSHCM_HR_NL_WP_ACT_001_STR3 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 GSHCM_HR_NL_WP_ACT_001_STR3. 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 GSHCM_HR_NL_WP_ACT_001_STR3 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_GSHCM_HR_NL_WP_ACT_001_STR3 TYPE STANDARD TABLE OF GSHCM_HR_NL_WP_ACT_001_STR3,
      WA_GSHCM_HR_NL_WP_ACT_001_STR3 TYPE GSHCM_HR_NL_WP_ACT_001_STR3,
      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: <GSHCM_HR_NL_WP_ACT_001_STR3> TYPE GSHCM_HR_NL_WP_ACT_001_STR3.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_GSHCM_HR_NL_WP_ACT_001_STR3.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM GSHCM_HR_NL_WP_ACT_001_STR3
  INTO TABLE IT_GSHCM_HR_NL_WP_ACT_001_STR3.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM GSHCM_HR_NL_WP_ACT_001_STR3
*  INTO TABLE @DATA(IT_GSHCM_HR_NL_WP_ACT_001_STR32).
*--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_GSHCM_HR_NL_WP_ACT_001_STR3 INDEX 1 INTO DATA(WA_GSHCM_HR_NL_WP_ACT_001_STR32).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_GSHCM_HR_NL_WP_ACT_001_STR3 ASSIGNING <GSHCM_HR_NL_WP_ACT_001_STR3>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<GSHCM_HR_NL_WP_ACT_001_STR3>-DATUM = 1.
<GSHCM_HR_NL_WP_ACT_001_STR3>-UZEIT = 1.
<GSHCM_HR_NL_WP_ACT_001_STR3>-RECORD = 1.
<GSHCM_HR_NL_WP_ACT_001_STR3>-PERNR = 1.
<GSHCM_HR_NL_WP_ACT_001_STR3>-ENAME = 1.

ENDLOOP.

LOOP AT IT_GSHCM_HR_NL_WP_ACT_001_STR3 INTO WA_GSHCM_HR_NL_WP_ACT_001_STR3.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_GSHCM_HR_NL_WP_ACT_001_STR3-STLTX, sy-vline,
  WA_GSHCM_HR_NL_WP_ACT_001_STR3-ORGTX, sy-vline,
  WA_GSHCM_HR_NL_WP_ACT_001_STR3-ATEXT, sy-vline,
  WA_GSHCM_HR_NL_WP_ACT_001_STR3-VORNA, sy-vline,
  WA_GSHCM_HR_NL_WP_ACT_001_STR3-INITS, sy-vline,
  WA_GSHCM_HR_NL_WP_ACT_001_STR3-NACHN, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_GSHCM_HR_NL_WP_ACT_001_STR3 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_GSHCM_HR_NL_WP_ACT_001_STR3 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_GSHCM_HR_NL_WP_ACT_001_STR3 INTO WA_GSHCM_HR_NL_WP_ACT_001_STR3.


*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_GSHCM_HR_NL_WP_ACT_001_STR3-GBDAT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GSHCM_HR_NL_WP_ACT_001_STR3-GBDAT.
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_GSHCM_HR_NL_WP_ACT_001_STR3_STR, 
DATUM TYPE STRING,
UZEIT TYPE STRING,
RECORD TYPE STRING,
PERNR TYPE STRING,
ENAME TYPE STRING,
STLTX TYPE STRING,
ORGTX TYPE STRING,
ATEXT TYPE STRING,
VORNA TYPE STRING,
INITS TYPE STRING,
NACHN TYPE STRING,
NAME2 TYPE STRING,
GBDAT TYPE STRING,
SOFIN TYPE STRING,
STRAS TYPE STRING,
HSNMR TYPE STRING,
POSTA TYPE STRING,
PSTLZ TYPE STRING,
ORT01 TYPE STRING,
TELNR TYPE STRING,
SACHN TYPE STRING,
TELCM TYPE STRING,
AR_ANSNR TYPE STRING,
AR_KNAAM TYPE STRING,
AR_GESLA TYPE STRING,
AR_KPERS TYPE STRING,
AR_STRAS TYPE STRING,
AR_HSNMR TYPE STRING,
AR_POSTA TYPE STRING,
AR_PSTLZ TYPE STRING,
AR_ORT01 TYPE STRING,
AR_TELNR TYPE STRING,
AR_FAXNR TYPE STRING,
WG_UVI_AANSLUITNR TYPE STRING,
WG_UVI_KNAAM TYPE STRING,
WG_UVI_VORGS TYPE STRING,
WG_UVI_GESLA TYPE STRING,
WG_UVI_KPERS TYPE STRING,
WG_UVI_STRAS TYPE STRING,
WG_UVI_HSNMR TYPE STRING,
WG_UVI_POSTA TYPE STRING,
WG_UVI_PSTLZ TYPE STRING,
WG_UVI_ORT01 TYPE STRING,
WG_UVI_TELNR TYPE STRING,
WG_UVI_FAXNR TYPE STRING,
UV_ANSNR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_GSHCM_HR_NL_WP_ACT_001_STR3_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_GSHCM_HR_NL_WP_ACT_001_STR3_STR-DATUM sy-vline 
WA_GSHCM_HR_NL_WP_ACT_001_STR3_STR-UZEIT sy-vline 
WA_GSHCM_HR_NL_WP_ACT_001_STR3_STR-RECORD sy-vline 
WA_GSHCM_HR_NL_WP_ACT_001_STR3_STR-PERNR sy-vline 
WA_GSHCM_HR_NL_WP_ACT_001_STR3_STR-ENAME sy-vline 
WA_GSHCM_HR_NL_WP_ACT_001_STR3_STR-STLTX sy-vline 
WA_GSHCM_HR_NL_WP_ACT_001_STR3_STR-ORGTX sy-vline 
WA_GSHCM_HR_NL_WP_ACT_001_STR3_STR-ATEXT sy-vline 
WA_GSHCM_HR_NL_WP_ACT_001_STR3_STR-VORNA sy-vline 
WA_GSHCM_HR_NL_WP_ACT_001_STR3_STR-INITS sy-vline 
WA_GSHCM_HR_NL_WP_ACT_001_STR3_STR-NACHN sy-vline 
WA_GSHCM_HR_NL_WP_ACT_001_STR3_STR-NAME2 sy-vline 
WA_GSHCM_HR_NL_WP_ACT_001_STR3_STR-GBDAT sy-vline 
WA_GSHCM_HR_NL_WP_ACT_001_STR3_STR-SOFIN sy-vline 
WA_GSHCM_HR_NL_WP_ACT_001_STR3_STR-STRAS sy-vline 
WA_GSHCM_HR_NL_WP_ACT_001_STR3_STR-HSNMR sy-vline 
WA_GSHCM_HR_NL_WP_ACT_001_STR3_STR-POSTA sy-vline 
WA_GSHCM_HR_NL_WP_ACT_001_STR3_STR-PSTLZ sy-vline 
WA_GSHCM_HR_NL_WP_ACT_001_STR3_STR-ORT01 sy-vline 
WA_GSHCM_HR_NL_WP_ACT_001_STR3_STR-TELNR sy-vline 
WA_GSHCM_HR_NL_WP_ACT_001_STR3_STR-SACHN sy-vline 
WA_GSHCM_HR_NL_WP_ACT_001_STR3_STR-TELCM sy-vline 
WA_GSHCM_HR_NL_WP_ACT_001_STR3_STR-AR_ANSNR sy-vline 
WA_GSHCM_HR_NL_WP_ACT_001_STR3_STR-AR_KNAAM sy-vline 
WA_GSHCM_HR_NL_WP_ACT_001_STR3_STR-AR_GESLA sy-vline 
WA_GSHCM_HR_NL_WP_ACT_001_STR3_STR-AR_KPERS sy-vline 
WA_GSHCM_HR_NL_WP_ACT_001_STR3_STR-AR_STRAS sy-vline 
WA_GSHCM_HR_NL_WP_ACT_001_STR3_STR-AR_HSNMR sy-vline 
WA_GSHCM_HR_NL_WP_ACT_001_STR3_STR-AR_POSTA sy-vline 
WA_GSHCM_HR_NL_WP_ACT_001_STR3_STR-AR_PSTLZ sy-vline 
WA_GSHCM_HR_NL_WP_ACT_001_STR3_STR-AR_ORT01 sy-vline 
WA_GSHCM_HR_NL_WP_ACT_001_STR3_STR-AR_TELNR sy-vline 
WA_GSHCM_HR_NL_WP_ACT_001_STR3_STR-AR_FAXNR sy-vline 
WA_GSHCM_HR_NL_WP_ACT_001_STR3_STR-WG_UVI_AANSLUITNR sy-vline 
WA_GSHCM_HR_NL_WP_ACT_001_STR3_STR-WG_UVI_KNAAM sy-vline 
WA_GSHCM_HR_NL_WP_ACT_001_STR3_STR-WG_UVI_VORGS sy-vline 
WA_GSHCM_HR_NL_WP_ACT_001_STR3_STR-WG_UVI_GESLA sy-vline 
WA_GSHCM_HR_NL_WP_ACT_001_STR3_STR-WG_UVI_KPERS sy-vline 
WA_GSHCM_HR_NL_WP_ACT_001_STR3_STR-WG_UVI_STRAS sy-vline 
WA_GSHCM_HR_NL_WP_ACT_001_STR3_STR-WG_UVI_HSNMR sy-vline 
WA_GSHCM_HR_NL_WP_ACT_001_STR3_STR-WG_UVI_POSTA sy-vline 
WA_GSHCM_HR_NL_WP_ACT_001_STR3_STR-WG_UVI_PSTLZ sy-vline 
WA_GSHCM_HR_NL_WP_ACT_001_STR3_STR-WG_UVI_ORT01 sy-vline 
WA_GSHCM_HR_NL_WP_ACT_001_STR3_STR-WG_UVI_TELNR sy-vline 
WA_GSHCM_HR_NL_WP_ACT_001_STR3_STR-WG_UVI_FAXNR sy-vline 
WA_GSHCM_HR_NL_WP_ACT_001_STR3_STR-UV_ANSNR sy-vline      INTO ld_text SEPARATED BY SPACE.

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