ABAP Select data from SAP table PAEP_ELIG_PERNR_LIST into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PAEP_ELIG_PERNR_LIST
*  INTO TABLE @DATA(IT_PAEP_ELIG_PERNR_LIST2).
*--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_PAEP_ELIG_PERNR_LIST INDEX 1 INTO DATA(WA_PAEP_ELIG_PERNR_LIST2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PAEP_ELIG_PERNR_LIST>-PERNR = 1.
<PAEP_ELIG_PERNR_LIST>-EFFDA = 1.
<PAEP_ELIG_PERNR_LIST>-PAY_FREQ = 1.
<PAEP_ELIG_PERNR_LIST>-PERNR_INFO = 1.
<PAEP_ELIG_PERNR_LIST>-PERNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PAEP_ELIG_PERNR_LIST-ENAME, sy-vline,
  WA_PAEP_ELIG_PERNR_LIST-SNAME, sy-vline,
  WA_PAEP_ELIG_PERNR_LIST-BEGDA, sy-vline,
  WA_PAEP_ELIG_PERNR_LIST-ENDDA, sy-vline,
  WA_PAEP_ELIG_PERNR_LIST-KOSTL, sy-vline,
  WA_PAEP_ELIG_PERNR_LIST-KTEXT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PAEP_ELIG_PERNR_LIST 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_PAEP_ELIG_PERNR_LIST 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_PAEP_ELIG_PERNR_LIST INTO WA_PAEP_ELIG_PERNR_LIST.


*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 ALPHA, internal->external for field KOSTL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PAEP_ELIG_PERNR_LIST-KOSTL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PAEP_ELIG_PERNR_LIST-KOSTL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PDATE, internal->external for field GBDAT
CALL FUNCTION 'CONVERSION_EXIT_PDATE_OUTPUT'
  EXPORTING
    input =                      WA_PAEP_ELIG_PERNR_LIST-GBDAT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PAEP_ELIG_PERNR_LIST-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_PAEP_ELIG_PERNR_LIST_STR, 
PERNR TYPE STRING,
EFFDA TYPE STRING,
PAY_FREQ TYPE STRING,
PERNR_INFO TYPE STRING,
PERNR TYPE STRING,
ENAME TYPE STRING,
SNAME TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,
KOSTL TYPE STRING,
KTEXT TYPE STRING,
KOKRS TYPE STRING,
ORGEH TYPE STRING,
ORGTX TYPE STRING,
STELL TYPE STRING,
JOBTX TYPE STRING,
PLANS TYPE STRING,
POSTX TYPE STRING,
CAREA TYPE STRING,
MPERNR TYPE STRING,
MNAME TYPE STRING,
WERKS TYPE STRING,
BTRTL TYPE STRING,
PERSG TYPE STRING,
PERSK TYPE STRING,
MOLGA TYPE STRING,
CPIND TYPE STRING,
TRFAR TYPE STRING,
TRFGB TYPE STRING,
TRFGR TYPE STRING,
TRFST TYPE STRING,
TRFKZ TYPE STRING,
WAERS TYPE STRING,
ANSAL TYPE STRING,
ANCUR TYPE STRING,
BSGRD TYPE STRING,
DIVGV TYPE STRING,
PERFR TYPE STRING,
PDATE TYPE STRING,
ELOCK TYPE STRING,
ENTDA TYPE STRING,
LEVDA TYPE STRING,
FAMST TYPE STRING,
BUKRS TYPE STRING,
ADD_PERNR_INFO TYPE STRING,
MASSN TYPE STRING,
MASSG TYPE STRING,
ACTION_BEGDA TYPE STRING,
GBDAT TYPE STRING,
GESCH TYPE STRING,
NATIO TYPE STRING,
NATI2 TYPE STRING,
NATI3 TYPE STRING,
KONFE TYPE STRING,
REGIO TYPE STRING,
ANZKD TYPE STRING,
PACAT TYPE STRING,
GNGRP TYPE STRING,
CGRSR TYPE STRING,
GRADE TYPE STRING,
JOBBA TYPE STRING,
DTYPE TYPE STRING,
PLSTX TYPE STRING,
PROB_END TYPE STRING,
PROB_CHK TYPE STRING,
CKSPOID TYPE STRING,
DEP_POSITION TYPE STRING,
DEP_WORKLOAD TYPE STRING,
DEP_GRADE TYPE STRING,
DEP_MNTH TYPE STRING,
PERNR_SC TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PAEP_ELIG_PERNR_LIST_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_PAEP_ELIG_PERNR_LIST_STR-PERNR sy-vline 
WA_PAEP_ELIG_PERNR_LIST_STR-EFFDA sy-vline 
WA_PAEP_ELIG_PERNR_LIST_STR-PAY_FREQ sy-vline 
WA_PAEP_ELIG_PERNR_LIST_STR-PERNR_INFO sy-vline 
WA_PAEP_ELIG_PERNR_LIST_STR-PERNR sy-vline 
WA_PAEP_ELIG_PERNR_LIST_STR-ENAME sy-vline 
WA_PAEP_ELIG_PERNR_LIST_STR-SNAME sy-vline 
WA_PAEP_ELIG_PERNR_LIST_STR-BEGDA sy-vline 
WA_PAEP_ELIG_PERNR_LIST_STR-ENDDA sy-vline 
WA_PAEP_ELIG_PERNR_LIST_STR-KOSTL sy-vline 
WA_PAEP_ELIG_PERNR_LIST_STR-KTEXT sy-vline 
WA_PAEP_ELIG_PERNR_LIST_STR-KOKRS sy-vline 
WA_PAEP_ELIG_PERNR_LIST_STR-ORGEH sy-vline 
WA_PAEP_ELIG_PERNR_LIST_STR-ORGTX sy-vline 
WA_PAEP_ELIG_PERNR_LIST_STR-STELL sy-vline 
WA_PAEP_ELIG_PERNR_LIST_STR-JOBTX sy-vline 
WA_PAEP_ELIG_PERNR_LIST_STR-PLANS sy-vline 
WA_PAEP_ELIG_PERNR_LIST_STR-POSTX sy-vline 
WA_PAEP_ELIG_PERNR_LIST_STR-CAREA sy-vline 
WA_PAEP_ELIG_PERNR_LIST_STR-MPERNR sy-vline 
WA_PAEP_ELIG_PERNR_LIST_STR-MNAME sy-vline 
WA_PAEP_ELIG_PERNR_LIST_STR-WERKS sy-vline 
WA_PAEP_ELIG_PERNR_LIST_STR-BTRTL sy-vline 
WA_PAEP_ELIG_PERNR_LIST_STR-PERSG sy-vline 
WA_PAEP_ELIG_PERNR_LIST_STR-PERSK sy-vline 
WA_PAEP_ELIG_PERNR_LIST_STR-MOLGA sy-vline 
WA_PAEP_ELIG_PERNR_LIST_STR-CPIND sy-vline 
WA_PAEP_ELIG_PERNR_LIST_STR-TRFAR sy-vline 
WA_PAEP_ELIG_PERNR_LIST_STR-TRFGB sy-vline 
WA_PAEP_ELIG_PERNR_LIST_STR-TRFGR sy-vline 
WA_PAEP_ELIG_PERNR_LIST_STR-TRFST sy-vline 
WA_PAEP_ELIG_PERNR_LIST_STR-TRFKZ sy-vline 
WA_PAEP_ELIG_PERNR_LIST_STR-WAERS sy-vline 
WA_PAEP_ELIG_PERNR_LIST_STR-ANSAL sy-vline 
WA_PAEP_ELIG_PERNR_LIST_STR-ANCUR sy-vline 
WA_PAEP_ELIG_PERNR_LIST_STR-BSGRD sy-vline 
WA_PAEP_ELIG_PERNR_LIST_STR-DIVGV sy-vline 
WA_PAEP_ELIG_PERNR_LIST_STR-PERFR sy-vline 
WA_PAEP_ELIG_PERNR_LIST_STR-PDATE sy-vline 
WA_PAEP_ELIG_PERNR_LIST_STR-ELOCK sy-vline 
WA_PAEP_ELIG_PERNR_LIST_STR-ENTDA sy-vline 
WA_PAEP_ELIG_PERNR_LIST_STR-LEVDA sy-vline 
WA_PAEP_ELIG_PERNR_LIST_STR-FAMST sy-vline 
WA_PAEP_ELIG_PERNR_LIST_STR-BUKRS sy-vline 
WA_PAEP_ELIG_PERNR_LIST_STR-ADD_PERNR_INFO sy-vline 
WA_PAEP_ELIG_PERNR_LIST_STR-MASSN sy-vline 
WA_PAEP_ELIG_PERNR_LIST_STR-MASSG sy-vline 
WA_PAEP_ELIG_PERNR_LIST_STR-ACTION_BEGDA sy-vline 
WA_PAEP_ELIG_PERNR_LIST_STR-GBDAT sy-vline 
WA_PAEP_ELIG_PERNR_LIST_STR-GESCH sy-vline 
WA_PAEP_ELIG_PERNR_LIST_STR-NATIO sy-vline 
WA_PAEP_ELIG_PERNR_LIST_STR-NATI2 sy-vline 
WA_PAEP_ELIG_PERNR_LIST_STR-NATI3 sy-vline 
WA_PAEP_ELIG_PERNR_LIST_STR-KONFE sy-vline 
WA_PAEP_ELIG_PERNR_LIST_STR-REGIO sy-vline 
WA_PAEP_ELIG_PERNR_LIST_STR-ANZKD sy-vline 
WA_PAEP_ELIG_PERNR_LIST_STR-PACAT sy-vline 
WA_PAEP_ELIG_PERNR_LIST_STR-GNGRP sy-vline 
WA_PAEP_ELIG_PERNR_LIST_STR-CGRSR sy-vline 
WA_PAEP_ELIG_PERNR_LIST_STR-GRADE sy-vline 
WA_PAEP_ELIG_PERNR_LIST_STR-JOBBA sy-vline 
WA_PAEP_ELIG_PERNR_LIST_STR-DTYPE sy-vline 
WA_PAEP_ELIG_PERNR_LIST_STR-PLSTX sy-vline 
WA_PAEP_ELIG_PERNR_LIST_STR-PROB_END sy-vline 
WA_PAEP_ELIG_PERNR_LIST_STR-PROB_CHK sy-vline 
WA_PAEP_ELIG_PERNR_LIST_STR-CKSPOID sy-vline 
WA_PAEP_ELIG_PERNR_LIST_STR-DEP_POSITION sy-vline 
WA_PAEP_ELIG_PERNR_LIST_STR-DEP_WORKLOAD sy-vline 
WA_PAEP_ELIG_PERNR_LIST_STR-DEP_GRADE sy-vline 
WA_PAEP_ELIG_PERNR_LIST_STR-DEP_MNTH sy-vline 
WA_PAEP_ELIG_PERNR_LIST_STR-PERNR_SC sy-vline      INTO ld_text SEPARATED BY SPACE.

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