ABAP Select data from SAP table P0536 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP P0536 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 P0536. 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 P0536 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_P0536 TYPE STANDARD TABLE OF P0536,
      WA_P0536 TYPE P0536,
      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: <P0536> TYPE P0536.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P0536.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P0536
  INTO TABLE IT_P0536.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P0536
*  INTO TABLE @DATA(IT_P05362).
*--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_P0536 INDEX 1 INTO DATA(WA_P05362).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P0536 ASSIGNING <P0536>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P0536>-PERNR = 1.
<P0536>-INFTY = 1.
<P0536>-SUBTY = 1.
<P0536>-OBJPS = 1.
<P0536>-SPRPS = 1.

ENDLOOP.

LOOP AT IT_P0536 INTO WA_P0536.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P0536-ENDDA, sy-vline,
  WA_P0536-BEGDA, sy-vline,
  WA_P0536-SEQNR, sy-vline,
  WA_P0536-AEDTM, sy-vline,
  WA_P0536-UNAME, sy-vline,
  WA_P0536-HISTO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P0536 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_P0536 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_P0536 INTO WA_P0536.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_P0536_STR, 
PERNR TYPE STRING,
INFTY 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,
POSTY TYPE STRING,
POSNC TYPE STRING,
APPUT TYPE STRING,
APPMD TYPE STRING,
APPRS TYPE STRING,
APPNO TYPE STRING,
POSLV TYPE STRING,
JOBTY TYPE STRING,
APPRU TYPE STRING,
POSTT TYPE STRING,
POSSC TYPE STRING,
POSSQ TYPE STRING,
JOBDS TYPE STRING,
RMVMD TYPE STRING,
RMVRS TYPE STRING,
RMVNO TYPE STRING,
RMVAP TYPE STRING,
POSNO TYPE STRING,
PSHTY TYPE STRING,
PRIPS TYPE STRING,
HTPOS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P0536_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_P0536_STR-PERNR sy-vline 
WA_P0536_STR-INFTY sy-vline 
WA_P0536_STR-SUBTY sy-vline 
WA_P0536_STR-OBJPS sy-vline 
WA_P0536_STR-SPRPS sy-vline 
WA_P0536_STR-ENDDA sy-vline 
WA_P0536_STR-BEGDA sy-vline 
WA_P0536_STR-SEQNR sy-vline 
WA_P0536_STR-AEDTM sy-vline 
WA_P0536_STR-UNAME sy-vline 
WA_P0536_STR-HISTO sy-vline 
WA_P0536_STR-ITXEX sy-vline 
WA_P0536_STR-REFEX sy-vline 
WA_P0536_STR-ORDEX sy-vline 
WA_P0536_STR-ITBLD sy-vline 
WA_P0536_STR-PREAS sy-vline 
WA_P0536_STR-FLAG1 sy-vline 
WA_P0536_STR-FLAG2 sy-vline 
WA_P0536_STR-FLAG3 sy-vline 
WA_P0536_STR-FLAG4 sy-vline 
WA_P0536_STR-RESE1 sy-vline 
WA_P0536_STR-RESE2 sy-vline 
WA_P0536_STR-GRPVL sy-vline 
WA_P0536_STR-POSTY sy-vline 
WA_P0536_STR-POSNC sy-vline 
WA_P0536_STR-APPUT sy-vline 
WA_P0536_STR-APPMD sy-vline 
WA_P0536_STR-APPRS sy-vline 
WA_P0536_STR-APPNO sy-vline 
WA_P0536_STR-POSLV sy-vline 
WA_P0536_STR-JOBTY sy-vline 
WA_P0536_STR-APPRU sy-vline 
WA_P0536_STR-POSTT sy-vline 
WA_P0536_STR-POSSC sy-vline 
WA_P0536_STR-POSSQ sy-vline 
WA_P0536_STR-JOBDS sy-vline 
WA_P0536_STR-RMVMD sy-vline 
WA_P0536_STR-RMVRS sy-vline 
WA_P0536_STR-RMVNO sy-vline 
WA_P0536_STR-RMVAP sy-vline 
WA_P0536_STR-POSNO sy-vline 
WA_P0536_STR-PSHTY sy-vline 
WA_P0536_STR-PRIPS sy-vline 
WA_P0536_STR-HTPOS sy-vline      INTO ld_text SEPARATED BY SPACE.

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