ABAP Select data from SAP table PA3424 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PA3424 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 PA3424. 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 PA3424 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_PA3424 TYPE STANDARD TABLE OF PA3424,
      WA_PA3424 TYPE PA3424,
      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: <PA3424> TYPE PA3424.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PA3424.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PA3424
  INTO TABLE IT_PA3424.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PA3424
*  INTO TABLE @DATA(IT_PA34242).
*--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_PA3424 INDEX 1 INTO DATA(WA_PA34242).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PA3424 ASSIGNING <PA3424>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PA3424>-MANDT = 1.
<PA3424>-PERNR = 1.
<PA3424>-SUBTY = 1.
<PA3424>-OBJPS = 1.
<PA3424>-SPRPS = 1.

ENDLOOP.

LOOP AT IT_PA3424 INTO WA_PA3424.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PA3424-ENDDA, sy-vline,
  WA_PA3424-BEGDA, sy-vline,
  WA_PA3424-SEQNR, sy-vline,
  WA_PA3424-AEDTM, sy-vline,
  WA_PA3424-UNAME, sy-vline,
  WA_PA3424-HISTO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PA3424 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_PA3424 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_PA3424 INTO WA_PA3424.


*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 PDATE, internal->external for field GBDAT_EE
CALL FUNCTION 'CONVERSION_EXIT_PDATE_OUTPUT'
  EXPORTING
    input =                      WA_PA3424-GBDAT_EE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PA3424-GBDAT_EE.
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_PA3424_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,
NOTID TYPE STRING,
CERID TYPE STRING,
SICKS TYPE STRING,
SICKC TYPE STRING,
SICKE TYPE STRING,
HLTH_SP TYPE STRING,
DNAME TYPE STRING,
STREE_ICPE TYPE STRING,
HSNBR_ICPE TYPE STRING,
STNBR_ICPE TYPE STRING,
MUNI1_ICPE TYPE STRING,
PCODE_ICPE TYPE STRING,
LCODE_ICPE TYPE STRING,
SICKT TYPE STRING,
WKACC TYPE STRING,
OPACC TYPE STRING,
ANARC TYPE STRING,
STREE_STAY TYPE STRING,
HSNBR_STAY TYPE STRING,
STNBR_STAY TYPE STRING,
MUNI1_STAY TYPE STRING,
MUNI2_STAY TYPE STRING,
PCODE_STAY TYPE STRING,
LCODE_STAY TYPE STRING,
WALKS TYPE STRING,
WALKE TYPE STRING,
WST01 TYPE STRING,
WET01 TYPE STRING,
WST02 TYPE STRING,
WET02 TYPE STRING,
WST03 TYPE STRING,
WET03 TYPE STRING,
WST04 TYPE STRING,
WET04 TYPE STRING,
WST05 TYPE STRING,
WET05 TYPE STRING,
VSORG TYPE STRING,
FNAME_EE TYPE STRING,
SNAME_EE TYPE STRING,
GBDAT_EE TYPE STRING,
PERID_EE TYPE STRING,
NAME_EER TYPE STRING,
DRCI_EER TYPE STRING,
DRCIT_EER TYPE STRING,
EVENT_ID TYPE STRING,
REMARK TYPE STRING,
VERS TYPE STRING,
STAYS TYPE STRING,
STAYE TYPE STRING,
DAT_TMST TYPE STRING,
TIME_TMST TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PA3424_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_PA3424_STR-MANDT sy-vline 
WA_PA3424_STR-PERNR sy-vline 
WA_PA3424_STR-SUBTY sy-vline 
WA_PA3424_STR-OBJPS sy-vline 
WA_PA3424_STR-SPRPS sy-vline 
WA_PA3424_STR-ENDDA sy-vline 
WA_PA3424_STR-BEGDA sy-vline 
WA_PA3424_STR-SEQNR sy-vline 
WA_PA3424_STR-AEDTM sy-vline 
WA_PA3424_STR-UNAME sy-vline 
WA_PA3424_STR-HISTO sy-vline 
WA_PA3424_STR-ITXEX sy-vline 
WA_PA3424_STR-REFEX sy-vline 
WA_PA3424_STR-ORDEX sy-vline 
WA_PA3424_STR-ITBLD sy-vline 
WA_PA3424_STR-PREAS sy-vline 
WA_PA3424_STR-FLAG1 sy-vline 
WA_PA3424_STR-FLAG2 sy-vline 
WA_PA3424_STR-FLAG3 sy-vline 
WA_PA3424_STR-FLAG4 sy-vline 
WA_PA3424_STR-RESE1 sy-vline 
WA_PA3424_STR-RESE2 sy-vline 
WA_PA3424_STR-GRPVL sy-vline 
WA_PA3424_STR-NOTID sy-vline 
WA_PA3424_STR-CERID sy-vline 
WA_PA3424_STR-SICKS sy-vline 
WA_PA3424_STR-SICKC sy-vline 
WA_PA3424_STR-SICKE sy-vline 
WA_PA3424_STR-HLTH_SP sy-vline 
WA_PA3424_STR-DNAME sy-vline 
WA_PA3424_STR-STREE_ICPE sy-vline 
WA_PA3424_STR-HSNBR_ICPE sy-vline 
WA_PA3424_STR-STNBR_ICPE sy-vline 
WA_PA3424_STR-MUNI1_ICPE sy-vline 
WA_PA3424_STR-PCODE_ICPE sy-vline 
WA_PA3424_STR-LCODE_ICPE sy-vline 
WA_PA3424_STR-SICKT sy-vline 
WA_PA3424_STR-WKACC sy-vline 
WA_PA3424_STR-OPACC sy-vline 
WA_PA3424_STR-ANARC sy-vline 
WA_PA3424_STR-STREE_STAY sy-vline 
WA_PA3424_STR-HSNBR_STAY sy-vline 
WA_PA3424_STR-STNBR_STAY sy-vline 
WA_PA3424_STR-MUNI1_STAY sy-vline 
WA_PA3424_STR-MUNI2_STAY sy-vline 
WA_PA3424_STR-PCODE_STAY sy-vline 
WA_PA3424_STR-LCODE_STAY sy-vline 
WA_PA3424_STR-WALKS sy-vline 
WA_PA3424_STR-WALKE sy-vline 
WA_PA3424_STR-WST01 sy-vline 
WA_PA3424_STR-WET01 sy-vline 
WA_PA3424_STR-WST02 sy-vline 
WA_PA3424_STR-WET02 sy-vline 
WA_PA3424_STR-WST03 sy-vline 
WA_PA3424_STR-WET03 sy-vline 
WA_PA3424_STR-WST04 sy-vline 
WA_PA3424_STR-WET04 sy-vline 
WA_PA3424_STR-WST05 sy-vline 
WA_PA3424_STR-WET05 sy-vline 
WA_PA3424_STR-VSORG sy-vline 
WA_PA3424_STR-FNAME_EE sy-vline 
WA_PA3424_STR-SNAME_EE sy-vline 
WA_PA3424_STR-GBDAT_EE sy-vline 
WA_PA3424_STR-PERID_EE sy-vline 
WA_PA3424_STR-NAME_EER sy-vline 
WA_PA3424_STR-DRCI_EER sy-vline 
WA_PA3424_STR-DRCIT_EER sy-vline 
WA_PA3424_STR-EVENT_ID sy-vline 
WA_PA3424_STR-REMARK sy-vline 
WA_PA3424_STR-VERS sy-vline 
WA_PA3424_STR-STAYS sy-vline 
WA_PA3424_STR-STAYE sy-vline 
WA_PA3424_STR-DAT_TMST sy-vline 
WA_PA3424_STR-TIME_TMST sy-vline      INTO ld_text SEPARATED BY SPACE.

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