ABAP Select data from SAP table PA0256 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PA0256 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 PA0256. 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 PA0256 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_PA0256 TYPE STANDARD TABLE OF PA0256,
      WA_PA0256 TYPE PA0256,
      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: <PA0256> TYPE PA0256.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PA0256.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PA0256
  INTO TABLE IT_PA0256.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PA0256
*  INTO TABLE @DATA(IT_PA02562).
*--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_PA0256 INDEX 1 INTO DATA(WA_PA02562).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PA0256 ASSIGNING <PA0256>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PA0256>-MANDT = 1.
<PA0256>-PERNR = 1.
<PA0256>-SUBTY = 1.
<PA0256>-OBJPS = 1.
<PA0256>-SPRPS = 1.

ENDLOOP.

LOOP AT IT_PA0256 INTO WA_PA0256.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PA0256-ENDDA, sy-vline,
  WA_PA0256-BEGDA, sy-vline,
  WA_PA0256-SEQNR, sy-vline,
  WA_PA0256-AEDTM, sy-vline,
  WA_PA0256-UNAME, sy-vline,
  WA_PA0256-HISTO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PA0256 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_PA0256 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_PA0256 INTO WA_PA0256.


*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_PA0256_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,
KDFBT TYPE STRING,
LGA_001 TYPE STRING,
BET_001 TYPE STRING,
LGA_002 TYPE STRING,
BET_002 TYPE STRING,
LGA_003 TYPE STRING,
BET_003 TYPE STRING,
LGA_004 TYPE STRING,
BET_004 TYPE STRING,
LGA_005 TYPE STRING,
BET_005 TYPE STRING,
LGA_006 TYPE STRING,
BET_006 TYPE STRING,
LGA_007 TYPE STRING,
BET_007 TYPE STRING,
LGA_008 TYPE STRING,
BET_008 TYPE STRING,
LGA_009 TYPE STRING,
BET_009 TYPE STRING,
LGA_010 TYPE STRING,
BET_010 TYPE STRING,
LGA_011 TYPE STRING,
BET_011 TYPE STRING,
LGA_012 TYPE STRING,
BET_012 TYPE STRING,
LGA_013 TYPE STRING,
BET_013 TYPE STRING,
LGA_014 TYPE STRING,
BET_014 TYPE STRING,
LGA_015 TYPE STRING,
BET_015 TYPE STRING,
LGA_016 TYPE STRING,
BET_016 TYPE STRING,
LGA_017 TYPE STRING,
BET_017 TYPE STRING,
LGA_018 TYPE STRING,
BET_018 TYPE STRING,
LGA_019 TYPE STRING,
BET_019 TYPE STRING,
LGA_020 TYPE STRING,
BET_020 TYPE STRING,
WAERS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PA0256_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_PA0256_STR-MANDT sy-vline 
WA_PA0256_STR-PERNR sy-vline 
WA_PA0256_STR-SUBTY sy-vline 
WA_PA0256_STR-OBJPS sy-vline 
WA_PA0256_STR-SPRPS sy-vline 
WA_PA0256_STR-ENDDA sy-vline 
WA_PA0256_STR-BEGDA sy-vline 
WA_PA0256_STR-SEQNR sy-vline 
WA_PA0256_STR-AEDTM sy-vline 
WA_PA0256_STR-UNAME sy-vline 
WA_PA0256_STR-HISTO sy-vline 
WA_PA0256_STR-ITXEX sy-vline 
WA_PA0256_STR-REFEX sy-vline 
WA_PA0256_STR-ORDEX sy-vline 
WA_PA0256_STR-ITBLD sy-vline 
WA_PA0256_STR-PREAS sy-vline 
WA_PA0256_STR-FLAG1 sy-vline 
WA_PA0256_STR-FLAG2 sy-vline 
WA_PA0256_STR-FLAG3 sy-vline 
WA_PA0256_STR-FLAG4 sy-vline 
WA_PA0256_STR-RESE1 sy-vline 
WA_PA0256_STR-RESE2 sy-vline 
WA_PA0256_STR-GRPVL sy-vline 
WA_PA0256_STR-KDFBT sy-vline 
WA_PA0256_STR-LGA_001 sy-vline 
WA_PA0256_STR-BET_001 sy-vline 
WA_PA0256_STR-LGA_002 sy-vline 
WA_PA0256_STR-BET_002 sy-vline 
WA_PA0256_STR-LGA_003 sy-vline 
WA_PA0256_STR-BET_003 sy-vline 
WA_PA0256_STR-LGA_004 sy-vline 
WA_PA0256_STR-BET_004 sy-vline 
WA_PA0256_STR-LGA_005 sy-vline 
WA_PA0256_STR-BET_005 sy-vline 
WA_PA0256_STR-LGA_006 sy-vline 
WA_PA0256_STR-BET_006 sy-vline 
WA_PA0256_STR-LGA_007 sy-vline 
WA_PA0256_STR-BET_007 sy-vline 
WA_PA0256_STR-LGA_008 sy-vline 
WA_PA0256_STR-BET_008 sy-vline 
WA_PA0256_STR-LGA_009 sy-vline 
WA_PA0256_STR-BET_009 sy-vline 
WA_PA0256_STR-LGA_010 sy-vline 
WA_PA0256_STR-BET_010 sy-vline 
WA_PA0256_STR-LGA_011 sy-vline 
WA_PA0256_STR-BET_011 sy-vline 
WA_PA0256_STR-LGA_012 sy-vline 
WA_PA0256_STR-BET_012 sy-vline 
WA_PA0256_STR-LGA_013 sy-vline 
WA_PA0256_STR-BET_013 sy-vline 
WA_PA0256_STR-LGA_014 sy-vline 
WA_PA0256_STR-BET_014 sy-vline 
WA_PA0256_STR-LGA_015 sy-vline 
WA_PA0256_STR-BET_015 sy-vline 
WA_PA0256_STR-LGA_016 sy-vline 
WA_PA0256_STR-BET_016 sy-vline 
WA_PA0256_STR-LGA_017 sy-vline 
WA_PA0256_STR-BET_017 sy-vline 
WA_PA0256_STR-LGA_018 sy-vline 
WA_PA0256_STR-BET_018 sy-vline 
WA_PA0256_STR-LGA_019 sy-vline 
WA_PA0256_STR-BET_019 sy-vline 
WA_PA0256_STR-LGA_020 sy-vline 
WA_PA0256_STR-BET_020 sy-vline 
WA_PA0256_STR-WAERS sy-vline      INTO ld_text SEPARATED BY SPACE.

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