ABAP Select data from SAP table PA0391 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PA0391 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 PA0391. 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 PA0391 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_PA0391 TYPE STANDARD TABLE OF PA0391,
      WA_PA0391 TYPE PA0391,
      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: <PA0391> TYPE PA0391.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PA0391.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PA0391
  INTO TABLE IT_PA0391.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PA0391
*  INTO TABLE @DATA(IT_PA03912).
*--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_PA0391 INDEX 1 INTO DATA(WA_PA03912).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PA0391 ASSIGNING <PA0391>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PA0391>-MANDT = 1.
<PA0391>-PERNR = 1.
<PA0391>-SUBTY = 1.
<PA0391>-OBJPS = 1.
<PA0391>-SPRPS = 1.

ENDLOOP.

LOOP AT IT_PA0391 INTO WA_PA0391.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PA0391-ENDDA, sy-vline,
  WA_PA0391-BEGDA, sy-vline,
  WA_PA0391-SEQNR, sy-vline,
  WA_PA0391-AEDTM, sy-vline,
  WA_PA0391-UNAME, sy-vline,
  WA_PA0391-HISTO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PA0391 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_PA0391 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_PA0391 INTO WA_PA0391.


*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_PA0391_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,
ICTYP TYPE STRING,
ICNUM TYPE STRING,
NOMBR TYPE STRING,
STRAS TYPE STRING,
HSNMR TYPE STRING,
FLOOR TYPE STRING,
POSTA TYPE STRING,
PSTLZ TYPE STRING,
ORT01 TYPE STRING,
ORT02 TYPE STRING,
STATE TYPE STRING,
LAND1 TYPE STRING,
WAERS TYPE STRING,
LGA01 TYPE STRING,
IMP01 TYPE STRING,
LGA02 TYPE STRING,
IMP02 TYPE STRING,
LGA03 TYPE STRING,
IMP03 TYPE STRING,
LGA04 TYPE STRING,
IMP04 TYPE STRING,
LGA05 TYPE STRING,
IMP05 TYPE STRING,
LGA06 TYPE STRING,
IMP06 TYPE STRING,
LGA07 TYPE STRING,
IMP07 TYPE STRING,
LGA08 TYPE STRING,
IMP08 TYPE STRING,
LGA09 TYPE STRING,
IMP09 TYPE STRING,
LGA10 TYPE STRING,
IMP10 TYPE STRING,
LGA11 TYPE STRING,
IMP11 TYPE STRING,
LGA12 TYPE STRING,
IMP12 TYPE STRING,
LGA13 TYPE STRING,
IMP13 TYPE STRING,
LGA14 TYPE STRING,
IMP14 TYPE STRING,
LGA15 TYPE STRING,
IMP15 TYPE STRING,
LGA16 TYPE STRING,
IMP16 TYPE STRING,
LGA17 TYPE STRING,
IMP17 TYPE STRING,
LGA18 TYPE STRING,
IMP18 TYPE STRING,
LGA19 TYPE STRING,
IMP19 TYPE STRING,
LGA20 TYPE STRING,
IMP20 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PA0391_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_PA0391_STR-MANDT sy-vline 
WA_PA0391_STR-PERNR sy-vline 
WA_PA0391_STR-SUBTY sy-vline 
WA_PA0391_STR-OBJPS sy-vline 
WA_PA0391_STR-SPRPS sy-vline 
WA_PA0391_STR-ENDDA sy-vline 
WA_PA0391_STR-BEGDA sy-vline 
WA_PA0391_STR-SEQNR sy-vline 
WA_PA0391_STR-AEDTM sy-vline 
WA_PA0391_STR-UNAME sy-vline 
WA_PA0391_STR-HISTO sy-vline 
WA_PA0391_STR-ITXEX sy-vline 
WA_PA0391_STR-REFEX sy-vline 
WA_PA0391_STR-ORDEX sy-vline 
WA_PA0391_STR-ITBLD sy-vline 
WA_PA0391_STR-PREAS sy-vline 
WA_PA0391_STR-FLAG1 sy-vline 
WA_PA0391_STR-FLAG2 sy-vline 
WA_PA0391_STR-FLAG3 sy-vline 
WA_PA0391_STR-FLAG4 sy-vline 
WA_PA0391_STR-RESE1 sy-vline 
WA_PA0391_STR-RESE2 sy-vline 
WA_PA0391_STR-GRPVL sy-vline 
WA_PA0391_STR-ICTYP sy-vline 
WA_PA0391_STR-ICNUM sy-vline 
WA_PA0391_STR-NOMBR sy-vline 
WA_PA0391_STR-STRAS sy-vline 
WA_PA0391_STR-HSNMR sy-vline 
WA_PA0391_STR-FLOOR sy-vline 
WA_PA0391_STR-POSTA sy-vline 
WA_PA0391_STR-PSTLZ sy-vline 
WA_PA0391_STR-ORT01 sy-vline 
WA_PA0391_STR-ORT02 sy-vline 
WA_PA0391_STR-STATE sy-vline 
WA_PA0391_STR-LAND1 sy-vline 
WA_PA0391_STR-WAERS sy-vline 
WA_PA0391_STR-LGA01 sy-vline 
WA_PA0391_STR-IMP01 sy-vline 
WA_PA0391_STR-LGA02 sy-vline 
WA_PA0391_STR-IMP02 sy-vline 
WA_PA0391_STR-LGA03 sy-vline 
WA_PA0391_STR-IMP03 sy-vline 
WA_PA0391_STR-LGA04 sy-vline 
WA_PA0391_STR-IMP04 sy-vline 
WA_PA0391_STR-LGA05 sy-vline 
WA_PA0391_STR-IMP05 sy-vline 
WA_PA0391_STR-LGA06 sy-vline 
WA_PA0391_STR-IMP06 sy-vline 
WA_PA0391_STR-LGA07 sy-vline 
WA_PA0391_STR-IMP07 sy-vline 
WA_PA0391_STR-LGA08 sy-vline 
WA_PA0391_STR-IMP08 sy-vline 
WA_PA0391_STR-LGA09 sy-vline 
WA_PA0391_STR-IMP09 sy-vline 
WA_PA0391_STR-LGA10 sy-vline 
WA_PA0391_STR-IMP10 sy-vline 
WA_PA0391_STR-LGA11 sy-vline 
WA_PA0391_STR-IMP11 sy-vline 
WA_PA0391_STR-LGA12 sy-vline 
WA_PA0391_STR-IMP12 sy-vline 
WA_PA0391_STR-LGA13 sy-vline 
WA_PA0391_STR-IMP13 sy-vline 
WA_PA0391_STR-LGA14 sy-vline 
WA_PA0391_STR-IMP14 sy-vline 
WA_PA0391_STR-LGA15 sy-vline 
WA_PA0391_STR-IMP15 sy-vline 
WA_PA0391_STR-LGA16 sy-vline 
WA_PA0391_STR-IMP16 sy-vline 
WA_PA0391_STR-LGA17 sy-vline 
WA_PA0391_STR-IMP17 sy-vline 
WA_PA0391_STR-LGA18 sy-vline 
WA_PA0391_STR-IMP18 sy-vline 
WA_PA0391_STR-LGA19 sy-vline 
WA_PA0391_STR-IMP19 sy-vline 
WA_PA0391_STR-LGA20 sy-vline 
WA_PA0391_STR-IMP20 sy-vline      INTO ld_text SEPARATED BY SPACE.

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