ABAP Select data from SAP table P2RH_TB into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

Below is a number of ABAP code snippets to demonstrate how to select data from SAP P2RH_TB 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 P2RH_TB. 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 P2RH_TB 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_P2RH_TB TYPE STANDARD TABLE OF P2RH_TB,
      WA_P2RH_TB TYPE P2RH_TB,
      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: <P2RH_TB> TYPE P2RH_TB.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P2RH_TB.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P2RH_TB
  INTO TABLE IT_P2RH_TB.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P2RH_TB
*  INTO TABLE @DATA(IT_P2RH_TB2).
*--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_P2RH_TB INDEX 1 INTO DATA(WA_P2RH_TB2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P2RH_TB ASSIGNING <P2RH_TB>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P2RH_TB>-MANDT = 1.
<P2RH_TB>-DCT_PERNR = 1.
<P2RH_TB>-DCT_SEQNR = 1.
<P2RH_TB>-DCT_ROWID = 1.
<P2RH_TB>-CNTR1 = 1.

ENDLOOP.

LOOP AT IT_P2RH_TB INTO WA_P2RH_TB.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P2RH_TB-BEGDA, sy-vline,
  WA_P2RH_TB-ENDDA, sy-vline,
  WA_P2RH_TB-SVNUM, sy-vline,
  WA_P2RH_TB-SVKNU, sy-vline,
  WA_P2RH_TB-AGREN, sy-vline,
  WA_P2RH_TB-AGKRA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P2RH_TB 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_P2RH_TB 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_P2RH_TB INTO WA_P2RH_TB.


*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_P2RH_TB_STR, 
MANDT TYPE STRING,
DCT_PERNR TYPE STRING,
DCT_SEQNR TYPE STRING,
DCT_ROWID TYPE STRING,
CNTR1 TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,
SVNUM TYPE STRING,
SVKNU TYPE STRING,
AGREN TYPE STRING,
AGKRA TYPE STRING,
AGARB TYPE STRING,
AGAZU TYPE STRING,
ANREN TYPE STRING,
ANKRA TYPE STRING,
ANARB TYPE STRING,
EUHOZ TYPE STRING,
MVEHO TYPE STRING,
MEKHO TYPE STRING,
TAKER TYPE STRING,
ANKRB TYPE STRING,
NYUTI TYPE STRING,
KOFOG TYPE STRING,
FOGLJ TYPE STRING,
RMIKF TYPE STRING,
SZKEP TYPE STRING,
KAHID TYPE STRING,
MBERM TYPE STRING,
REHAB TYPE STRING,
GYEDS TYPE STRING,
K5525 TYPE STRING,
K25FE TYPE STRING,
SZVAL TYPE STRING,
KUTAT TYPE STRING,
MTABI TYPE STRING,
KFOKS TYPE STRING,
M2555 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P2RH_TB_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_P2RH_TB_STR-MANDT sy-vline 
WA_P2RH_TB_STR-DCT_PERNR sy-vline 
WA_P2RH_TB_STR-DCT_SEQNR sy-vline 
WA_P2RH_TB_STR-DCT_ROWID sy-vline 
WA_P2RH_TB_STR-CNTR1 sy-vline 
WA_P2RH_TB_STR-BEGDA sy-vline 
WA_P2RH_TB_STR-ENDDA sy-vline 
WA_P2RH_TB_STR-SVNUM sy-vline 
WA_P2RH_TB_STR-SVKNU sy-vline 
WA_P2RH_TB_STR-AGREN sy-vline 
WA_P2RH_TB_STR-AGKRA sy-vline 
WA_P2RH_TB_STR-AGARB sy-vline 
WA_P2RH_TB_STR-AGAZU sy-vline 
WA_P2RH_TB_STR-ANREN sy-vline 
WA_P2RH_TB_STR-ANKRA sy-vline 
WA_P2RH_TB_STR-ANARB sy-vline 
WA_P2RH_TB_STR-EUHOZ sy-vline 
WA_P2RH_TB_STR-MVEHO sy-vline 
WA_P2RH_TB_STR-MEKHO sy-vline 
WA_P2RH_TB_STR-TAKER sy-vline 
WA_P2RH_TB_STR-ANKRB sy-vline 
WA_P2RH_TB_STR-NYUTI sy-vline 
WA_P2RH_TB_STR-KOFOG sy-vline 
WA_P2RH_TB_STR-FOGLJ sy-vline 
WA_P2RH_TB_STR-RMIKF sy-vline 
WA_P2RH_TB_STR-SZKEP sy-vline 
WA_P2RH_TB_STR-KAHID sy-vline 
WA_P2RH_TB_STR-MBERM sy-vline 
WA_P2RH_TB_STR-REHAB sy-vline 
WA_P2RH_TB_STR-GYEDS sy-vline 
WA_P2RH_TB_STR-K5525 sy-vline 
WA_P2RH_TB_STR-K25FE sy-vline 
WA_P2RH_TB_STR-SZVAL sy-vline 
WA_P2RH_TB_STR-KUTAT sy-vline 
WA_P2RH_TB_STR-MTABI sy-vline 
WA_P2RH_TB_STR-KFOKS sy-vline 
WA_P2RH_TB_STR-M2555 sy-vline      INTO ld_text SEPARATED BY SPACE.

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