ABAP Select data from SAP table HRPAYCH_S_SI_REF_LOHN_TAB into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM HRPAYCH_S_SI_REF_LOHN_TAB
*  INTO TABLE @DATA(IT_HRPAYCH_S_SI_REF_LOHN_TAB2).
*--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_HRPAYCH_S_SI_REF_LOHN_TAB INDEX 1 INTO DATA(WA_HRPAYCH_S_SI_REF_LOHN_TAB2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<HRPAYCH_S_SI_REF_LOHN_TAB>-PERNR = 1.
<HRPAYCH_S_SI_REF_LOHN_TAB>-ABART = 1.
<HRPAYCH_S_SI_REF_LOHN_TAB>-LGART = 1.
<HRPAYCH_S_SI_REF_LOHN_TAB>-APZNR = 1.
<HRPAYCH_S_SI_REF_LOHN_TAB>-CNTR1 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_HRPAYCH_S_SI_REF_LOHN_TAB-CNTR2, sy-vline,
  WA_HRPAYCH_S_SI_REF_LOHN_TAB-CNTR3, sy-vline,
  WA_HRPAYCH_S_SI_REF_LOHN_TAB-ALZNR, sy-vline,
  WA_HRPAYCH_S_SI_REF_LOHN_TAB-C1ZNR, sy-vline,
  WA_HRPAYCH_S_SI_REF_LOHN_TAB-BTZNR, sy-vline,
  WA_HRPAYCH_S_SI_REF_LOHN_TAB-ABZNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_HRPAYCH_S_SI_REF_LOHN_TAB 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_HRPAYCH_S_SI_REF_LOHN_TAB 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_HRPAYCH_S_SI_REF_LOHN_TAB INTO WA_HRPAYCH_S_SI_REF_LOHN_TAB.


*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_HRPAYCH_S_SI_REF_LOHN_TAB_STR, 
PERNR TYPE STRING,
ABART TYPE STRING,
LGART TYPE STRING,
APZNR TYPE STRING,
CNTR1 TYPE STRING,
CNTR2 TYPE STRING,
CNTR3 TYPE STRING,
ALZNR TYPE STRING,
C1ZNR TYPE STRING,
BTZNR TYPE STRING,
ABZNR TYPE STRING,
V0TYP TYPE STRING,
V0ZNR TYPE STRING,
ZEINH TYPE STRING,
BETPE TYPE STRING,
ANZHL TYPE STRING,
BETRG TYPE STRING,
RTE_CURR TYPE STRING,
AMT_CURR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_HRPAYCH_S_SI_REF_LOHN_TAB_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_HRPAYCH_S_SI_REF_LOHN_TAB_STR-PERNR sy-vline 
WA_HRPAYCH_S_SI_REF_LOHN_TAB_STR-ABART sy-vline 
WA_HRPAYCH_S_SI_REF_LOHN_TAB_STR-LGART sy-vline 
WA_HRPAYCH_S_SI_REF_LOHN_TAB_STR-APZNR sy-vline 
WA_HRPAYCH_S_SI_REF_LOHN_TAB_STR-CNTR1 sy-vline 
WA_HRPAYCH_S_SI_REF_LOHN_TAB_STR-CNTR2 sy-vline 
WA_HRPAYCH_S_SI_REF_LOHN_TAB_STR-CNTR3 sy-vline 
WA_HRPAYCH_S_SI_REF_LOHN_TAB_STR-ALZNR sy-vline 
WA_HRPAYCH_S_SI_REF_LOHN_TAB_STR-C1ZNR sy-vline 
WA_HRPAYCH_S_SI_REF_LOHN_TAB_STR-BTZNR sy-vline 
WA_HRPAYCH_S_SI_REF_LOHN_TAB_STR-ABZNR sy-vline 
WA_HRPAYCH_S_SI_REF_LOHN_TAB_STR-V0TYP sy-vline 
WA_HRPAYCH_S_SI_REF_LOHN_TAB_STR-V0ZNR sy-vline 
WA_HRPAYCH_S_SI_REF_LOHN_TAB_STR-ZEINH sy-vline 
WA_HRPAYCH_S_SI_REF_LOHN_TAB_STR-BETPE sy-vline 
WA_HRPAYCH_S_SI_REF_LOHN_TAB_STR-ANZHL sy-vline 
WA_HRPAYCH_S_SI_REF_LOHN_TAB_STR-BETRG sy-vline 
WA_HRPAYCH_S_SI_REF_LOHN_TAB_STR-RTE_CURR sy-vline 
WA_HRPAYCH_S_SI_REF_LOHN_TAB_STR-AMT_CURR sy-vline      INTO ld_text SEPARATED BY SPACE.

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