ABAP Select data from SAP table HRPAYCA_S_RPCGR1K0_ALV into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP HRPAYCA_S_RPCGR1K0_ALV 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 HRPAYCA_S_RPCGR1K0_ALV. 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 HRPAYCA_S_RPCGR1K0_ALV 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_HRPAYCA_S_RPCGR1K0_ALV TYPE STANDARD TABLE OF HRPAYCA_S_RPCGR1K0_ALV,
      WA_HRPAYCA_S_RPCGR1K0_ALV TYPE HRPAYCA_S_RPCGR1K0_ALV,
      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: <HRPAYCA_S_RPCGR1K0_ALV> TYPE HRPAYCA_S_RPCGR1K0_ALV.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_HRPAYCA_S_RPCGR1K0_ALV.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM HRPAYCA_S_RPCGR1K0_ALV
  INTO TABLE IT_HRPAYCA_S_RPCGR1K0_ALV.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM HRPAYCA_S_RPCGR1K0_ALV
*  INTO TABLE @DATA(IT_HRPAYCA_S_RPCGR1K0_ALV2).
*--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_HRPAYCA_S_RPCGR1K0_ALV INDEX 1 INTO DATA(WA_HRPAYCA_S_RPCGR1K0_ALV2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_HRPAYCA_S_RPCGR1K0_ALV ASSIGNING <HRPAYCA_S_RPCGR1K0_ALV>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<HRPAYCA_S_RPCGR1K0_ALV>-PERNR = 1.
<HRPAYCA_S_RPCGR1K0_ALV>-NAME = 1.
<HRPAYCA_S_RPCGR1K0_ALV>-PAREA = 1.
<HRPAYCA_S_RPCGR1K0_ALV>-PSARE = 1.
<HRPAYCA_S_RPCGR1K0_ALV>-EGROU = 1.

ENDLOOP.

LOOP AT IT_HRPAYCA_S_RPCGR1K0_ALV INTO WA_HRPAYCA_S_RPCGR1K0_ALV.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_HRPAYCA_S_RPCGR1K0_ALV-ESGRP, sy-vline,
  WA_HRPAYCA_S_RPCGR1K0_ALV-PERID, sy-vline,
  WA_HRPAYCA_S_RPCGR1K0_ALV-PERIDEXT, sy-vline,
  WA_HRPAYCA_S_RPCGR1K0_ALV-IONUM, sy-vline,
  WA_HRPAYCA_S_RPCGR1K0_ALV-GCATE, sy-vline,
  WA_HRPAYCA_S_RPCGR1K0_ALV-GCATX, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_HRPAYCA_S_RPCGR1K0_ALV 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_HRPAYCA_S_RPCGR1K0_ALV 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_HRPAYCA_S_RPCGR1K0_ALV INTO WA_HRPAYCA_S_RPCGR1K0_ALV.


*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 PIDEX, internal->external for field PERIDEXT
CALL FUNCTION 'CONVERSION_EXIT_PIDEX_OUTPUT'
  EXPORTING
    input =                      WA_HRPAYCA_S_RPCGR1K0_ALV-PERIDEXT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_HRPAYCA_S_RPCGR1K0_ALV-PERIDEXT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LIFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_HRPAYCA_S_RPCGR1K0_ALV-LIFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_HRPAYCA_S_RPCGR1K0_ALV-LIFNR.
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_HRPAYCA_S_RPCGR1K0_ALV_STR, 
PERNR TYPE STRING,
NAME TYPE STRING,
PAREA TYPE STRING,
PSARE TYPE STRING,
EGROU TYPE STRING,
ESGRP TYPE STRING,
PERID TYPE STRING,
PERIDEXT TYPE STRING,
IONUM TYPE STRING,
GCATE TYPE STRING,
GCATX TYPE STRING,
LIFNR TYPE STRING,
VNAME TYPE STRING,
DBCOD TYPE STRING,
DBTXT TYPE STRING,
RCDAT TYPE STRING,
RCDRL TYPE STRING,
RCCAT TYPE STRING,
RCTXT TYPE STRING,
IOCN1 TYPE STRING,
IDBAL TYPE STRING,
IDOPA TYPE STRING,
IDOPU TYPE STRING,
ABREM TYPE STRING,
RCAMT TYPE STRING,
ABPAY TYPE STRING,
ACPRP TYPE STRING,
AMTOD TYPE STRING,
AYTOD TYPE STRING,
ATTOD TYPE STRING,
DMTDL TYPE STRING,
ADJNO TYPE STRING,
LIFSG TYPE STRING,
BUKRS TYPE STRING,
GSBER TYPE STRING,
CRETY TYPE STRING,
CRENR TYPE STRING,
RDATN TYPE STRING,
PAYTY TYPE STRING,
PAYTX TYPE STRING,
RMSTS TYPE STRING,
RMSTX TYPE STRING,
RUNDT TYPE STRING,
RUNTM TYPE STRING,
DUEDT TYPE STRING,
VOID TYPE STRING,
SEQNR TYPE STRING,
OBJPS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_HRPAYCA_S_RPCGR1K0_ALV_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_HRPAYCA_S_RPCGR1K0_ALV_STR-PERNR sy-vline 
WA_HRPAYCA_S_RPCGR1K0_ALV_STR-NAME sy-vline 
WA_HRPAYCA_S_RPCGR1K0_ALV_STR-PAREA sy-vline 
WA_HRPAYCA_S_RPCGR1K0_ALV_STR-PSARE sy-vline 
WA_HRPAYCA_S_RPCGR1K0_ALV_STR-EGROU sy-vline 
WA_HRPAYCA_S_RPCGR1K0_ALV_STR-ESGRP sy-vline 
WA_HRPAYCA_S_RPCGR1K0_ALV_STR-PERID sy-vline 
WA_HRPAYCA_S_RPCGR1K0_ALV_STR-PERIDEXT sy-vline 
WA_HRPAYCA_S_RPCGR1K0_ALV_STR-IONUM sy-vline 
WA_HRPAYCA_S_RPCGR1K0_ALV_STR-GCATE sy-vline 
WA_HRPAYCA_S_RPCGR1K0_ALV_STR-GCATX sy-vline 
WA_HRPAYCA_S_RPCGR1K0_ALV_STR-LIFNR sy-vline 
WA_HRPAYCA_S_RPCGR1K0_ALV_STR-VNAME sy-vline 
WA_HRPAYCA_S_RPCGR1K0_ALV_STR-DBCOD sy-vline 
WA_HRPAYCA_S_RPCGR1K0_ALV_STR-DBTXT sy-vline 
WA_HRPAYCA_S_RPCGR1K0_ALV_STR-RCDAT sy-vline 
WA_HRPAYCA_S_RPCGR1K0_ALV_STR-RCDRL sy-vline 
WA_HRPAYCA_S_RPCGR1K0_ALV_STR-RCCAT sy-vline 
WA_HRPAYCA_S_RPCGR1K0_ALV_STR-RCTXT sy-vline 
WA_HRPAYCA_S_RPCGR1K0_ALV_STR-IOCN1 sy-vline 
WA_HRPAYCA_S_RPCGR1K0_ALV_STR-IDBAL sy-vline 
WA_HRPAYCA_S_RPCGR1K0_ALV_STR-IDOPA sy-vline 
WA_HRPAYCA_S_RPCGR1K0_ALV_STR-IDOPU sy-vline 
WA_HRPAYCA_S_RPCGR1K0_ALV_STR-ABREM sy-vline 
WA_HRPAYCA_S_RPCGR1K0_ALV_STR-RCAMT sy-vline 
WA_HRPAYCA_S_RPCGR1K0_ALV_STR-ABPAY sy-vline 
WA_HRPAYCA_S_RPCGR1K0_ALV_STR-ACPRP sy-vline 
WA_HRPAYCA_S_RPCGR1K0_ALV_STR-AMTOD sy-vline 
WA_HRPAYCA_S_RPCGR1K0_ALV_STR-AYTOD sy-vline 
WA_HRPAYCA_S_RPCGR1K0_ALV_STR-ATTOD sy-vline 
WA_HRPAYCA_S_RPCGR1K0_ALV_STR-DMTDL sy-vline 
WA_HRPAYCA_S_RPCGR1K0_ALV_STR-ADJNO sy-vline 
WA_HRPAYCA_S_RPCGR1K0_ALV_STR-LIFSG sy-vline 
WA_HRPAYCA_S_RPCGR1K0_ALV_STR-BUKRS sy-vline 
WA_HRPAYCA_S_RPCGR1K0_ALV_STR-GSBER sy-vline 
WA_HRPAYCA_S_RPCGR1K0_ALV_STR-CRETY sy-vline 
WA_HRPAYCA_S_RPCGR1K0_ALV_STR-CRENR sy-vline 
WA_HRPAYCA_S_RPCGR1K0_ALV_STR-RDATN sy-vline 
WA_HRPAYCA_S_RPCGR1K0_ALV_STR-PAYTY sy-vline 
WA_HRPAYCA_S_RPCGR1K0_ALV_STR-PAYTX sy-vline 
WA_HRPAYCA_S_RPCGR1K0_ALV_STR-RMSTS sy-vline 
WA_HRPAYCA_S_RPCGR1K0_ALV_STR-RMSTX sy-vline 
WA_HRPAYCA_S_RPCGR1K0_ALV_STR-RUNDT sy-vline 
WA_HRPAYCA_S_RPCGR1K0_ALV_STR-RUNTM sy-vline 
WA_HRPAYCA_S_RPCGR1K0_ALV_STR-DUEDT sy-vline 
WA_HRPAYCA_S_RPCGR1K0_ALV_STR-VOID sy-vline 
WA_HRPAYCA_S_RPCGR1K0_ALV_STR-SEQNR sy-vline 
WA_HRPAYCA_S_RPCGR1K0_ALV_STR-OBJPS sy-vline      INTO ld_text SEPARATED BY SPACE.

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