ABAP Select data from SAP table PA3254 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PA3254 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 PA3254. 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 PA3254 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_PA3254 TYPE STANDARD TABLE OF PA3254,
      WA_PA3254 TYPE PA3254,
      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: <PA3254> TYPE PA3254.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PA3254.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PA3254
  INTO TABLE IT_PA3254.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PA3254
*  INTO TABLE @DATA(IT_PA32542).
*--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_PA3254 INDEX 1 INTO DATA(WA_PA32542).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PA3254 ASSIGNING <PA3254>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PA3254>-MANDT = 1.
<PA3254>-PERNR = 1.
<PA3254>-SUBTY = 1.
<PA3254>-OBJPS = 1.
<PA3254>-SPRPS = 1.

ENDLOOP.

LOOP AT IT_PA3254 INTO WA_PA3254.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PA3254-ENDDA, sy-vline,
  WA_PA3254-BEGDA, sy-vline,
  WA_PA3254-SEQNR, sy-vline,
  WA_PA3254-AEDTM, sy-vline,
  WA_PA3254-UNAME, sy-vline,
  WA_PA3254-HISTO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PA3254 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_PA3254 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_PA3254 INTO WA_PA3254.


*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 GDATE, internal->external for field DLEPD
CALL FUNCTION 'CONVERSION_EXIT_GDATE_OUTPUT'
  EXPORTING
    input =                      WA_PA3254-DLEPD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PA3254-DLEPD.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GDATE, internal->external for field VSEPD
CALL FUNCTION 'CONVERSION_EXIT_GDATE_OUTPUT'
  EXPORTING
    input =                      WA_PA3254-VSEPD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PA3254-VSEPD.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GDATE, internal->external for field PSPED
CALL FUNCTION 'CONVERSION_EXIT_GDATE_OUTPUT'
  EXPORTING
    input =                      WA_PA3254-PSPED
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PA3254-PSPED.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GDATE, internal->external for field IQEPD
CALL FUNCTION 'CONVERSION_EXIT_GDATE_OUTPUT'
  EXPORTING
    input =                      WA_PA3254-IQEPD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PA3254-IQEPD.
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_PA3254_STR, 
MANDT TYPE STRING,
PERNR TYPE STRING,
SUBTY TYPE STRING,
OBJPS TYPE STRING,
SPRPS TYPE STRING,
ENDDA TYPE STRING,
BEGDA TYPE STRING,
SEQNR TYPE STRING,
AEDTM TYPE STRING,
UNAME TYPE STRING,
HISTO TYPE STRING,
ITXEX TYPE STRING,
REFEX TYPE STRING,
ORDEX TYPE STRING,
ITBLD TYPE STRING,
PREAS TYPE STRING,
FLAG1 TYPE STRING,
FLAG2 TYPE STRING,
FLAG3 TYPE STRING,
FLAG4 TYPE STRING,
RESE1 TYPE STRING,
RESE2 TYPE STRING,
GRPVL TYPE STRING,
ARFNM TYPE STRING,
ARSNM TYPE STRING,
ARTNM TYPE STRING,
ARLNM TYPE STRING,
HIRDT TYPE STRING,
SCHNM TYPE STRING,
DRLNB TYPE STRING,
DLEPD TYPE STRING,
VSNUM TYPE STRING,
VSEPD TYPE STRING,
PSPNM TYPE STRING,
PSPED TYPE STRING,
IQNUM TYPE STRING,
IQEPD TYPE STRING,
BLGRP TYPE STRING,
BORDR TYPE STRING,
EPORT TYPE STRING,
ENTRD TYPE STRING,
LPAPD TYPE STRING,
KTART TYPE STRING,
FDELG TYPE STRING,
SPOID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PA3254_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_PA3254_STR-MANDT sy-vline 
WA_PA3254_STR-PERNR sy-vline 
WA_PA3254_STR-SUBTY sy-vline 
WA_PA3254_STR-OBJPS sy-vline 
WA_PA3254_STR-SPRPS sy-vline 
WA_PA3254_STR-ENDDA sy-vline 
WA_PA3254_STR-BEGDA sy-vline 
WA_PA3254_STR-SEQNR sy-vline 
WA_PA3254_STR-AEDTM sy-vline 
WA_PA3254_STR-UNAME sy-vline 
WA_PA3254_STR-HISTO sy-vline 
WA_PA3254_STR-ITXEX sy-vline 
WA_PA3254_STR-REFEX sy-vline 
WA_PA3254_STR-ORDEX sy-vline 
WA_PA3254_STR-ITBLD sy-vline 
WA_PA3254_STR-PREAS sy-vline 
WA_PA3254_STR-FLAG1 sy-vline 
WA_PA3254_STR-FLAG2 sy-vline 
WA_PA3254_STR-FLAG3 sy-vline 
WA_PA3254_STR-FLAG4 sy-vline 
WA_PA3254_STR-RESE1 sy-vline 
WA_PA3254_STR-RESE2 sy-vline 
WA_PA3254_STR-GRPVL sy-vline 
WA_PA3254_STR-ARFNM sy-vline 
WA_PA3254_STR-ARSNM sy-vline 
WA_PA3254_STR-ARTNM sy-vline 
WA_PA3254_STR-ARLNM sy-vline 
WA_PA3254_STR-HIRDT sy-vline 
WA_PA3254_STR-SCHNM sy-vline 
WA_PA3254_STR-DRLNB sy-vline 
WA_PA3254_STR-DLEPD sy-vline 
WA_PA3254_STR-VSNUM sy-vline 
WA_PA3254_STR-VSEPD sy-vline 
WA_PA3254_STR-PSPNM sy-vline 
WA_PA3254_STR-PSPED sy-vline 
WA_PA3254_STR-IQNUM sy-vline 
WA_PA3254_STR-IQEPD sy-vline 
WA_PA3254_STR-BLGRP sy-vline 
WA_PA3254_STR-BORDR sy-vline 
WA_PA3254_STR-EPORT sy-vline 
WA_PA3254_STR-ENTRD sy-vline 
WA_PA3254_STR-LPAPD sy-vline 
WA_PA3254_STR-KTART sy-vline 
WA_PA3254_STR-FDELG sy-vline 
WA_PA3254_STR-SPOID sy-vline      INTO ld_text SEPARATED BY SPACE.

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