ABAP Select data from SAP table P0561 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP P0561 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 P0561. 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 P0561 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_P0561 TYPE STANDARD TABLE OF P0561,
      WA_P0561 TYPE P0561,
      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: <P0561> TYPE P0561.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P0561.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P0561
  INTO TABLE IT_P0561.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P0561
*  INTO TABLE @DATA(IT_P05612).
*--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_P0561 INDEX 1 INTO DATA(WA_P05612).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P0561 ASSIGNING <P0561>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P0561>-PERNR = 1.
<P0561>-INFTY = 1.
<P0561>-SUBTY = 1.
<P0561>-OBJPS = 1.
<P0561>-SPRPS = 1.

ENDLOOP.

LOOP AT IT_P0561 INTO WA_P0561.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P0561-ENDDA, sy-vline,
  WA_P0561-BEGDA, sy-vline,
  WA_P0561-SEQNR, sy-vline,
  WA_P0561-AEDTM, sy-vline,
  WA_P0561-UNAME, sy-vline,
  WA_P0561-HISTO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P0561 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_P0561 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_P0561 INTO WA_P0561.


*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_P0561_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,
ODECL TYPE STRING,
IACRE TYPE STRING,
TYP01 TYPE STRING,
MET01 TYPE STRING,
TAB01 TYPE STRING,
TYP02 TYPE STRING,
MET02 TYPE STRING,
TAB02 TYPE STRING,
TYP03 TYPE STRING,
MET03 TYPE STRING,
TAB03 TYPE STRING,
TYP04 TYPE STRING,
MET04 TYPE STRING,
TAB04 TYPE STRING,
TYP05 TYPE STRING,
MET05 TYPE STRING,
TAB05 TYPE STRING,
TYP06 TYPE STRING,
MET06 TYPE STRING,
TAB06 TYPE STRING,
TYP07 TYPE STRING,
MET07 TYPE STRING,
TAB07 TYPE STRING,
TYP08 TYPE STRING,
MET08 TYPE STRING,
TAB08 TYPE STRING,
TYP09 TYPE STRING,
MET09 TYPE STRING,
TAB09 TYPE STRING,
TYP10 TYPE STRING,
MET10 TYPE STRING,
TAB10 TYPE STRING,
ZOECO TYPE STRING,
ESTAD TYPE STRING,
HESTE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P0561_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_P0561_STR-PERNR sy-vline 
WA_P0561_STR-INFTY sy-vline 
WA_P0561_STR-SUBTY sy-vline 
WA_P0561_STR-OBJPS sy-vline 
WA_P0561_STR-SPRPS sy-vline 
WA_P0561_STR-ENDDA sy-vline 
WA_P0561_STR-BEGDA sy-vline 
WA_P0561_STR-SEQNR sy-vline 
WA_P0561_STR-AEDTM sy-vline 
WA_P0561_STR-UNAME sy-vline 
WA_P0561_STR-HISTO sy-vline 
WA_P0561_STR-ITXEX sy-vline 
WA_P0561_STR-REFEX sy-vline 
WA_P0561_STR-ORDEX sy-vline 
WA_P0561_STR-ITBLD sy-vline 
WA_P0561_STR-PREAS sy-vline 
WA_P0561_STR-FLAG1 sy-vline 
WA_P0561_STR-FLAG2 sy-vline 
WA_P0561_STR-FLAG3 sy-vline 
WA_P0561_STR-FLAG4 sy-vline 
WA_P0561_STR-RESE1 sy-vline 
WA_P0561_STR-RESE2 sy-vline 
WA_P0561_STR-GRPVL sy-vline 
WA_P0561_STR-ODECL sy-vline 
WA_P0561_STR-IACRE sy-vline 
WA_P0561_STR-TYP01 sy-vline 
WA_P0561_STR-MET01 sy-vline 
WA_P0561_STR-TAB01 sy-vline 
WA_P0561_STR-TYP02 sy-vline 
WA_P0561_STR-MET02 sy-vline 
WA_P0561_STR-TAB02 sy-vline 
WA_P0561_STR-TYP03 sy-vline 
WA_P0561_STR-MET03 sy-vline 
WA_P0561_STR-TAB03 sy-vline 
WA_P0561_STR-TYP04 sy-vline 
WA_P0561_STR-MET04 sy-vline 
WA_P0561_STR-TAB04 sy-vline 
WA_P0561_STR-TYP05 sy-vline 
WA_P0561_STR-MET05 sy-vline 
WA_P0561_STR-TAB05 sy-vline 
WA_P0561_STR-TYP06 sy-vline 
WA_P0561_STR-MET06 sy-vline 
WA_P0561_STR-TAB06 sy-vline 
WA_P0561_STR-TYP07 sy-vline 
WA_P0561_STR-MET07 sy-vline 
WA_P0561_STR-TAB07 sy-vline 
WA_P0561_STR-TYP08 sy-vline 
WA_P0561_STR-MET08 sy-vline 
WA_P0561_STR-TAB08 sy-vline 
WA_P0561_STR-TYP09 sy-vline 
WA_P0561_STR-MET09 sy-vline 
WA_P0561_STR-TAB09 sy-vline 
WA_P0561_STR-TYP10 sy-vline 
WA_P0561_STR-MET10 sy-vline 
WA_P0561_STR-TAB10 sy-vline 
WA_P0561_STR-ZOECO sy-vline 
WA_P0561_STR-ESTAD sy-vline 
WA_P0561_STR-HESTE sy-vline      INTO ld_text SEPARATED BY SPACE.

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