ABAP Select data from SAP table HRPAYCH_S_PYF_PLOG_ALV_PERIODR 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_PYF_PLOG_ALV_PERIODR 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_PYF_PLOG_ALV_PERIODR. 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_PYF_PLOG_ALV_PERIODR 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_PYF_PLOG_ALV_PERIODR TYPE STANDARD TABLE OF HRPAYCH_S_PYF_PLOG_ALV_PERIODR,
      WA_HRPAYCH_S_PYF_PLOG_ALV_PERIODR TYPE HRPAYCH_S_PYF_PLOG_ALV_PERIODR,
      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_PYF_PLOG_ALV_PERIODR> TYPE HRPAYCH_S_PYF_PLOG_ALV_PERIODR.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM HRPAYCH_S_PYF_PLOG_ALV_PERIODR
*  INTO TABLE @DATA(IT_HRPAYCH_S_PYF_PLOG_ALV_PERIODR2).
*--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_PYF_PLOG_ALV_PERIODR INDEX 1 INTO DATA(WA_HRPAYCH_S_PYF_PLOG_ALV_PERIODR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<HRPAYCH_S_PYF_PLOG_ALV_PERIODR>-GROUPING_REASON = 1.
<HRPAYCH_S_PYF_PLOG_ALV_PERIODR>-GROUPING_VALUE = 1.
<HRPAYCH_S_PYF_PLOG_ALV_PERIODR>-PYMAIN_PNR = 1.
<HRPAYCH_S_PYF_PLOG_ALV_PERIODR>-SEPOS = 1.
<HRPAYCH_S_PYF_PLOG_ALV_PERIODR>-CUMTY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_HRPAYCH_S_PYF_PLOG_ALV_PERIODR-CUMNO, sy-vline,
  WA_HRPAYCH_S_PYF_PLOG_ALV_PERIODR-CUMYR, sy-vline,
  WA_HRPAYCH_S_PYF_PLOG_ALV_PERIODR-CRT_BEGDA, sy-vline,
  WA_HRPAYCH_S_PYF_PLOG_ALV_PERIODR-CRT_ENDDA, sy-vline,
  WA_HRPAYCH_S_PYF_PLOG_ALV_PERIODR-AFUPER, sy-vline,
  WA_HRPAYCH_S_PYF_PLOG_ALV_PERIODR-AINPER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_HRPAYCH_S_PYF_PLOG_ALV_PERIODR 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_PYF_PLOG_ALV_PERIODR 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_PYF_PLOG_ALV_PERIODR INTO WA_HRPAYCH_S_PYF_PLOG_ALV_PERIODR.


*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 GJAHR, internal->external for field CUMYR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_HRPAYCH_S_PYF_PLOG_ALV_PERIODR-CUMYR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_HRPAYCH_S_PYF_PLOG_ALV_PERIODR-CUMYR.
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_HRPAYCH_S_PYF_PLOG_ALV_PERIODR_STR, 
GROUPING_REASON TYPE STRING,
GROUPING_VALUE TYPE STRING,
PYMAIN_PNR TYPE STRING,
SEPOS TYPE STRING,
CUMTY TYPE STRING,
CUMNO TYPE STRING,
CUMYR TYPE STRING,
CRT_BEGDA TYPE STRING,
CRT_ENDDA TYPE STRING,
AFUPER TYPE STRING,
AINPER TYPE STRING,
AFPBEG TYPE STRING,
ABARTLGA TYPE STRING,
LGARTLGA TYPE STRING,
APZNRLGA TYPE STRING,
CNTR1LGA TYPE STRING,
CNTR2LGA TYPE STRING,
CNTR3LGA TYPE STRING,
ALZNRLGA TYPE STRING,
C1ZNRLGA TYPE STRING,
BTZNRLGA TYPE STRING,
ABZNRLGA TYPE STRING,
V0TYPLGA TYPE STRING,
V0ZNRLGA TYPE STRING,
ZEINHLGA TYPE STRING,
BETPELGA TYPE STRING,
ANZHLLGA TYPE STRING,
BETRGLGA TYPE STRING,
RTE_CURRLGA TYPE STRING,
AMT_CURRLGA TYPE STRING,
C3_CHAR TYPE STRING,
AHVPFSV TYPE STRING,
FAMKASV TYPE STRING,
ALTCDSV TYPE STRING,
AKTIVJNWPB TYPE STRING,
STAT2WPB TYPE STRING,
KANTOST TYPE STRING,
QSTPFST TYPE STRING,
FAMKAFAK TYPE STRING,
MODIFCHV TYPE STRING,
BEREICHCHV TYPE STRING,
C3_C2_CHAR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_HRPAYCH_S_PYF_PLOG_ALV_PERIODR_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_PYF_PLOG_ALV_PERIODR_STR-GROUPING_REASON sy-vline 
WA_HRPAYCH_S_PYF_PLOG_ALV_PERIODR_STR-GROUPING_VALUE sy-vline 
WA_HRPAYCH_S_PYF_PLOG_ALV_PERIODR_STR-PYMAIN_PNR sy-vline 
WA_HRPAYCH_S_PYF_PLOG_ALV_PERIODR_STR-SEPOS sy-vline 
WA_HRPAYCH_S_PYF_PLOG_ALV_PERIODR_STR-CUMTY sy-vline 
WA_HRPAYCH_S_PYF_PLOG_ALV_PERIODR_STR-CUMNO sy-vline 
WA_HRPAYCH_S_PYF_PLOG_ALV_PERIODR_STR-CUMYR sy-vline 
WA_HRPAYCH_S_PYF_PLOG_ALV_PERIODR_STR-CRT_BEGDA sy-vline 
WA_HRPAYCH_S_PYF_PLOG_ALV_PERIODR_STR-CRT_ENDDA sy-vline 
WA_HRPAYCH_S_PYF_PLOG_ALV_PERIODR_STR-AFUPER sy-vline 
WA_HRPAYCH_S_PYF_PLOG_ALV_PERIODR_STR-AINPER sy-vline 
WA_HRPAYCH_S_PYF_PLOG_ALV_PERIODR_STR-AFPBEG sy-vline 
WA_HRPAYCH_S_PYF_PLOG_ALV_PERIODR_STR-ABARTLGA sy-vline 
WA_HRPAYCH_S_PYF_PLOG_ALV_PERIODR_STR-LGARTLGA sy-vline 
WA_HRPAYCH_S_PYF_PLOG_ALV_PERIODR_STR-APZNRLGA sy-vline 
WA_HRPAYCH_S_PYF_PLOG_ALV_PERIODR_STR-CNTR1LGA sy-vline 
WA_HRPAYCH_S_PYF_PLOG_ALV_PERIODR_STR-CNTR2LGA sy-vline 
WA_HRPAYCH_S_PYF_PLOG_ALV_PERIODR_STR-CNTR3LGA sy-vline 
WA_HRPAYCH_S_PYF_PLOG_ALV_PERIODR_STR-ALZNRLGA sy-vline 
WA_HRPAYCH_S_PYF_PLOG_ALV_PERIODR_STR-C1ZNRLGA sy-vline 
WA_HRPAYCH_S_PYF_PLOG_ALV_PERIODR_STR-BTZNRLGA sy-vline 
WA_HRPAYCH_S_PYF_PLOG_ALV_PERIODR_STR-ABZNRLGA sy-vline 
WA_HRPAYCH_S_PYF_PLOG_ALV_PERIODR_STR-V0TYPLGA sy-vline 
WA_HRPAYCH_S_PYF_PLOG_ALV_PERIODR_STR-V0ZNRLGA sy-vline 
WA_HRPAYCH_S_PYF_PLOG_ALV_PERIODR_STR-ZEINHLGA sy-vline 
WA_HRPAYCH_S_PYF_PLOG_ALV_PERIODR_STR-BETPELGA sy-vline 
WA_HRPAYCH_S_PYF_PLOG_ALV_PERIODR_STR-ANZHLLGA sy-vline 
WA_HRPAYCH_S_PYF_PLOG_ALV_PERIODR_STR-BETRGLGA sy-vline 
WA_HRPAYCH_S_PYF_PLOG_ALV_PERIODR_STR-RTE_CURRLGA sy-vline 
WA_HRPAYCH_S_PYF_PLOG_ALV_PERIODR_STR-AMT_CURRLGA sy-vline 
WA_HRPAYCH_S_PYF_PLOG_ALV_PERIODR_STR-C3_CHAR sy-vline 
WA_HRPAYCH_S_PYF_PLOG_ALV_PERIODR_STR-AHVPFSV sy-vline 
WA_HRPAYCH_S_PYF_PLOG_ALV_PERIODR_STR-FAMKASV sy-vline 
WA_HRPAYCH_S_PYF_PLOG_ALV_PERIODR_STR-ALTCDSV sy-vline 
WA_HRPAYCH_S_PYF_PLOG_ALV_PERIODR_STR-AKTIVJNWPB sy-vline 
WA_HRPAYCH_S_PYF_PLOG_ALV_PERIODR_STR-STAT2WPB sy-vline 
WA_HRPAYCH_S_PYF_PLOG_ALV_PERIODR_STR-KANTOST sy-vline 
WA_HRPAYCH_S_PYF_PLOG_ALV_PERIODR_STR-QSTPFST sy-vline 
WA_HRPAYCH_S_PYF_PLOG_ALV_PERIODR_STR-FAMKAFAK sy-vline 
WA_HRPAYCH_S_PYF_PLOG_ALV_PERIODR_STR-MODIFCHV sy-vline 
WA_HRPAYCH_S_PYF_PLOG_ALV_PERIODR_STR-BEREICHCHV sy-vline 
WA_HRPAYCH_S_PYF_PLOG_ALV_PERIODR_STR-C3_C2_CHAR sy-vline      INTO ld_text SEPARATED BY SPACE.

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