ABAP Select data from SAP table PA0645 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PA0645 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 PA0645. 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 PA0645 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_PA0645 TYPE STANDARD TABLE OF PA0645,
      WA_PA0645 TYPE PA0645,
      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: <PA0645> TYPE PA0645.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PA0645.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PA0645
  INTO TABLE IT_PA0645.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PA0645
*  INTO TABLE @DATA(IT_PA06452).
*--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_PA0645 INDEX 1 INTO DATA(WA_PA06452).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PA0645 ASSIGNING <PA0645>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PA0645>-MANDT = 1.
<PA0645>-PERNR = 1.
<PA0645>-SUBTY = 1.
<PA0645>-OBJPS = 1.
<PA0645>-SPRPS = 1.

ENDLOOP.

LOOP AT IT_PA0645 INTO WA_PA0645.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PA0645-ENDDA, sy-vline,
  WA_PA0645-BEGDA, sy-vline,
  WA_PA0645-SEQNR, sy-vline,
  WA_PA0645-AEDTM, sy-vline,
  WA_PA0645-UNAME, sy-vline,
  WA_PA0645-HISTO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PA0645 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_PA0645 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_PA0645 INTO WA_PA0645.


*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_PA0645_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,
TIPTE TYPE STRING,
EGGRP TYPE STRING,
WAERS TYPE STRING,
PREAV TYPE STRING,
PREAT TYPE STRING,
COI01 TYPE STRING,
NUM01 TYPE STRING,
AMT01 TYPE STRING,
PCT01 TYPE STRING,
COI02 TYPE STRING,
NUM02 TYPE STRING,
AMT02 TYPE STRING,
PCT02 TYPE STRING,
COI03 TYPE STRING,
NUM03 TYPE STRING,
AMT03 TYPE STRING,
PCT03 TYPE STRING,
COI04 TYPE STRING,
NUM04 TYPE STRING,
AMT04 TYPE STRING,
PCT04 TYPE STRING,
COI05 TYPE STRING,
NUM05 TYPE STRING,
AMT05 TYPE STRING,
PCT05 TYPE STRING,
COI06 TYPE STRING,
NUM06 TYPE STRING,
AMT06 TYPE STRING,
PCT06 TYPE STRING,
COI07 TYPE STRING,
NUM07 TYPE STRING,
AMT07 TYPE STRING,
PCT07 TYPE STRING,
COI08 TYPE STRING,
NUM08 TYPE STRING,
AMT08 TYPE STRING,
PCT08 TYPE STRING,
COI09 TYPE STRING,
NUM09 TYPE STRING,
AMT09 TYPE STRING,
PCT09 TYPE STRING,
COI10 TYPE STRING,
NUM10 TYPE STRING,
AMT10 TYPE STRING,
PCT10 TYPE STRING,
COI11 TYPE STRING,
NUM11 TYPE STRING,
AMT11 TYPE STRING,
PCT11 TYPE STRING,
COI12 TYPE STRING,
NUM12 TYPE STRING,
AMT12 TYPE STRING,
PCT12 TYPE STRING,
COI13 TYPE STRING,
NUM13 TYPE STRING,
AMT13 TYPE STRING,
PCT13 TYPE STRING,
COI14 TYPE STRING,
NUM14 TYPE STRING,
AMT14 TYPE STRING,
PCT14 TYPE STRING,
COI15 TYPE STRING,
NUM15 TYPE STRING,
AMT15 TYPE STRING,
PCT15 TYPE STRING,
COI16 TYPE STRING,
NUM16 TYPE STRING,
AMT16 TYPE STRING,
PCT16 TYPE STRING,
COI17 TYPE STRING,
NUM17 TYPE STRING,
AMT17 TYPE STRING,
PCT17 TYPE STRING,
COI18 TYPE STRING,
NUM18 TYPE STRING,
AMT18 TYPE STRING,
PCT18 TYPE STRING,
COI19 TYPE STRING,
NUM19 TYPE STRING,
AMT19 TYPE STRING,
PCT19 TYPE STRING,
COI20 TYPE STRING,
NUM20 TYPE STRING,
AMT20 TYPE STRING,
PCT20 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PA0645_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_PA0645_STR-MANDT sy-vline 
WA_PA0645_STR-PERNR sy-vline 
WA_PA0645_STR-SUBTY sy-vline 
WA_PA0645_STR-OBJPS sy-vline 
WA_PA0645_STR-SPRPS sy-vline 
WA_PA0645_STR-ENDDA sy-vline 
WA_PA0645_STR-BEGDA sy-vline 
WA_PA0645_STR-SEQNR sy-vline 
WA_PA0645_STR-AEDTM sy-vline 
WA_PA0645_STR-UNAME sy-vline 
WA_PA0645_STR-HISTO sy-vline 
WA_PA0645_STR-ITXEX sy-vline 
WA_PA0645_STR-REFEX sy-vline 
WA_PA0645_STR-ORDEX sy-vline 
WA_PA0645_STR-ITBLD sy-vline 
WA_PA0645_STR-PREAS sy-vline 
WA_PA0645_STR-FLAG1 sy-vline 
WA_PA0645_STR-FLAG2 sy-vline 
WA_PA0645_STR-FLAG3 sy-vline 
WA_PA0645_STR-FLAG4 sy-vline 
WA_PA0645_STR-RESE1 sy-vline 
WA_PA0645_STR-RESE2 sy-vline 
WA_PA0645_STR-GRPVL sy-vline 
WA_PA0645_STR-TIPTE sy-vline 
WA_PA0645_STR-EGGRP sy-vline 
WA_PA0645_STR-WAERS sy-vline 
WA_PA0645_STR-PREAV sy-vline 
WA_PA0645_STR-PREAT sy-vline 
WA_PA0645_STR-COI01 sy-vline 
WA_PA0645_STR-NUM01 sy-vline 
WA_PA0645_STR-AMT01 sy-vline 
WA_PA0645_STR-PCT01 sy-vline 
WA_PA0645_STR-COI02 sy-vline 
WA_PA0645_STR-NUM02 sy-vline 
WA_PA0645_STR-AMT02 sy-vline 
WA_PA0645_STR-PCT02 sy-vline 
WA_PA0645_STR-COI03 sy-vline 
WA_PA0645_STR-NUM03 sy-vline 
WA_PA0645_STR-AMT03 sy-vline 
WA_PA0645_STR-PCT03 sy-vline 
WA_PA0645_STR-COI04 sy-vline 
WA_PA0645_STR-NUM04 sy-vline 
WA_PA0645_STR-AMT04 sy-vline 
WA_PA0645_STR-PCT04 sy-vline 
WA_PA0645_STR-COI05 sy-vline 
WA_PA0645_STR-NUM05 sy-vline 
WA_PA0645_STR-AMT05 sy-vline 
WA_PA0645_STR-PCT05 sy-vline 
WA_PA0645_STR-COI06 sy-vline 
WA_PA0645_STR-NUM06 sy-vline 
WA_PA0645_STR-AMT06 sy-vline 
WA_PA0645_STR-PCT06 sy-vline 
WA_PA0645_STR-COI07 sy-vline 
WA_PA0645_STR-NUM07 sy-vline 
WA_PA0645_STR-AMT07 sy-vline 
WA_PA0645_STR-PCT07 sy-vline 
WA_PA0645_STR-COI08 sy-vline 
WA_PA0645_STR-NUM08 sy-vline 
WA_PA0645_STR-AMT08 sy-vline 
WA_PA0645_STR-PCT08 sy-vline 
WA_PA0645_STR-COI09 sy-vline 
WA_PA0645_STR-NUM09 sy-vline 
WA_PA0645_STR-AMT09 sy-vline 
WA_PA0645_STR-PCT09 sy-vline 
WA_PA0645_STR-COI10 sy-vline 
WA_PA0645_STR-NUM10 sy-vline 
WA_PA0645_STR-AMT10 sy-vline 
WA_PA0645_STR-PCT10 sy-vline 
WA_PA0645_STR-COI11 sy-vline 
WA_PA0645_STR-NUM11 sy-vline 
WA_PA0645_STR-AMT11 sy-vline 
WA_PA0645_STR-PCT11 sy-vline 
WA_PA0645_STR-COI12 sy-vline 
WA_PA0645_STR-NUM12 sy-vline 
WA_PA0645_STR-AMT12 sy-vline 
WA_PA0645_STR-PCT12 sy-vline 
WA_PA0645_STR-COI13 sy-vline 
WA_PA0645_STR-NUM13 sy-vline 
WA_PA0645_STR-AMT13 sy-vline 
WA_PA0645_STR-PCT13 sy-vline 
WA_PA0645_STR-COI14 sy-vline 
WA_PA0645_STR-NUM14 sy-vline 
WA_PA0645_STR-AMT14 sy-vline 
WA_PA0645_STR-PCT14 sy-vline 
WA_PA0645_STR-COI15 sy-vline 
WA_PA0645_STR-NUM15 sy-vline 
WA_PA0645_STR-AMT15 sy-vline 
WA_PA0645_STR-PCT15 sy-vline 
WA_PA0645_STR-COI16 sy-vline 
WA_PA0645_STR-NUM16 sy-vline 
WA_PA0645_STR-AMT16 sy-vline 
WA_PA0645_STR-PCT16 sy-vline 
WA_PA0645_STR-COI17 sy-vline 
WA_PA0645_STR-NUM17 sy-vline 
WA_PA0645_STR-AMT17 sy-vline 
WA_PA0645_STR-PCT17 sy-vline 
WA_PA0645_STR-COI18 sy-vline 
WA_PA0645_STR-NUM18 sy-vline 
WA_PA0645_STR-AMT18 sy-vline 
WA_PA0645_STR-PCT18 sy-vline 
WA_PA0645_STR-COI19 sy-vline 
WA_PA0645_STR-NUM19 sy-vline 
WA_PA0645_STR-AMT19 sy-vline 
WA_PA0645_STR-PCT19 sy-vline 
WA_PA0645_STR-COI20 sy-vline 
WA_PA0645_STR-NUM20 sy-vline 
WA_PA0645_STR-AMT20 sy-vline 
WA_PA0645_STR-PCT20 sy-vline      INTO ld_text SEPARATED BY SPACE.

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