ABAP Select data from SAP table P01O_REHA into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP P01O_REHA 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 P01O_REHA. 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 P01O_REHA 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_P01O_REHA TYPE STANDARD TABLE OF P01O_REHA,
      WA_P01O_REHA TYPE P01O_REHA,
      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: <P01O_REHA> TYPE P01O_REHA.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P01O_REHA.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P01O_REHA
  INTO TABLE IT_P01O_REHA.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P01O_REHA
*  INTO TABLE @DATA(IT_P01O_REHA2).
*--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_P01O_REHA INDEX 1 INTO DATA(WA_P01O_REHA2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P01O_REHA ASSIGNING <P01O_REHA>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P01O_REHA>-AA_ADR = 1.
<P01O_REHA>-NAME1 = 1.
<P01O_REHA>-NAME2 = 1.
<P01O_REHA>-STRASSE = 1.
<P01O_REHA>-PLZ = 1.

ENDLOOP.

LOOP AT IT_P01O_REHA INTO WA_P01O_REHA.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P01O_REHA-ORT, sy-vline,
  WA_P01O_REHA-AG_ADR, sy-vline,
  WA_P01O_REHA-NAME1, sy-vline,
  WA_P01O_REHA-NAME2, sy-vline,
  WA_P01O_REHA-STRASSE, sy-vline,
  WA_P01O_REHA-PLZ, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P01O_REHA 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_P01O_REHA 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_P01O_REHA INTO WA_P01O_REHA.


*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_P01O_REHA_STR, 
AA_ADR TYPE STRING,
NAME1 TYPE STRING,
NAME2 TYPE STRING,
STRASSE TYPE STRING,
PLZ TYPE STRING,
ORT TYPE STRING,
AG_ADR TYPE STRING,
NAME1 TYPE STRING,
NAME2 TYPE STRING,
STRASSE TYPE STRING,
PLZ TYPE STRING,
ORT TYPE STRING,
BANK TYPE STRING,
KTO TYPE STRING,
BLZ TYPE STRING,
INSTITUT TYPE STRING,
ORT TYPE STRING,
IBAN TYPE STRING,
BIC TYPE STRING,
NAME TYPE STRING,
KUNDENNR TYPE STRING,
RVNUM TYPE STRING,
GRUPPE1 TYPE STRING,
GRUPPE2 TYPE STRING,
GRUPPE3 TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,
ERSTER_TAG TYPE STRING,
AENDA TYPE STRING,
ERSTATTUNG TYPE STRING,
BETRAG TYPE STRING,
WAERS TYPE STRING,
SACHBEARB TYPE STRING,
DATUM TYPE STRING,
KKASSE TYPE STRING,
KVSCH TYPE STRING,
KKTXT TYPE STRING,
KKORT TYPE STRING,
AEND_AB TYPE STRING,
AEND_AUF TYPE STRING,
BETRAG TYPE STRING,
WAERS TYPE STRING,
GRUPPE4 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P01O_REHA_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_P01O_REHA_STR-AA_ADR sy-vline 
WA_P01O_REHA_STR-NAME1 sy-vline 
WA_P01O_REHA_STR-NAME2 sy-vline 
WA_P01O_REHA_STR-STRASSE sy-vline 
WA_P01O_REHA_STR-PLZ sy-vline 
WA_P01O_REHA_STR-ORT sy-vline 
WA_P01O_REHA_STR-AG_ADR sy-vline 
WA_P01O_REHA_STR-NAME1 sy-vline 
WA_P01O_REHA_STR-NAME2 sy-vline 
WA_P01O_REHA_STR-STRASSE sy-vline 
WA_P01O_REHA_STR-PLZ sy-vline 
WA_P01O_REHA_STR-ORT sy-vline 
WA_P01O_REHA_STR-BANK sy-vline 
WA_P01O_REHA_STR-KTO sy-vline 
WA_P01O_REHA_STR-BLZ sy-vline 
WA_P01O_REHA_STR-INSTITUT sy-vline 
WA_P01O_REHA_STR-ORT sy-vline 
WA_P01O_REHA_STR-IBAN sy-vline 
WA_P01O_REHA_STR-BIC sy-vline 
WA_P01O_REHA_STR-NAME sy-vline 
WA_P01O_REHA_STR-KUNDENNR sy-vline 
WA_P01O_REHA_STR-RVNUM sy-vline 
WA_P01O_REHA_STR-GRUPPE1 sy-vline 
WA_P01O_REHA_STR-GRUPPE2 sy-vline 
WA_P01O_REHA_STR-GRUPPE3 sy-vline 
WA_P01O_REHA_STR-BEGDA sy-vline 
WA_P01O_REHA_STR-ENDDA sy-vline 
WA_P01O_REHA_STR-ERSTER_TAG sy-vline 
WA_P01O_REHA_STR-AENDA sy-vline 
WA_P01O_REHA_STR-ERSTATTUNG sy-vline 
WA_P01O_REHA_STR-BETRAG sy-vline 
WA_P01O_REHA_STR-WAERS sy-vline 
WA_P01O_REHA_STR-SACHBEARB sy-vline 
WA_P01O_REHA_STR-DATUM sy-vline 
WA_P01O_REHA_STR-KKASSE sy-vline 
WA_P01O_REHA_STR-KVSCH sy-vline 
WA_P01O_REHA_STR-KKTXT sy-vline 
WA_P01O_REHA_STR-KKORT sy-vline 
WA_P01O_REHA_STR-AEND_AB sy-vline 
WA_P01O_REHA_STR-AEND_AUF sy-vline 
WA_P01O_REHA_STR-BETRAG sy-vline 
WA_P01O_REHA_STR-WAERS sy-vline 
WA_P01O_REHA_STR-GRUPPE4 sy-vline      INTO ld_text SEPARATED BY SPACE.

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