ABAP Select data from SAP table P2RC_SV into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP P2RC_SV 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 P2RC_SV. 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 P2RC_SV 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_P2RC_SV TYPE STANDARD TABLE OF P2RC_SV,
      WA_P2RC_SV TYPE P2RC_SV,
      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: <P2RC_SV> TYPE P2RC_SV.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P2RC_SV.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P2RC_SV
  INTO TABLE IT_P2RC_SV.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P2RC_SV
*  INTO TABLE @DATA(IT_P2RC_SV2).
*--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_P2RC_SV INDEX 1 INTO DATA(WA_P2RC_SV2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P2RC_SV ASSIGNING <P2RC_SV>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P2RC_SV>-MANDT = 1.
<P2RC_SV>-DCT_PERNR = 1.
<P2RC_SV>-DCT_SEQNR = 1.
<P2RC_SV>-DCT_ROWID = 1.
<P2RC_SV>-CNTR1 = 1.

ENDLOOP.

LOOP AT IT_P2RC_SV INTO WA_P2RC_SV.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P2RC_SV-BEGDA, sy-vline,
  WA_P2RC_SV-ENDDA, sy-vline,
  WA_P2RC_SV-AHVNR, sy-vline,
  WA_P2RC_SV-AHVPF, sy-vline,
  WA_P2RC_SV-BTRT1, sy-vline,
  WA_P2RC_SV-NBUPF, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P2RC_SV 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_P2RC_SV 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_P2RC_SV INTO WA_P2RC_SV.


*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.

*Conversion exit AHVNR, internal->external for field AHVNR
CALL FUNCTION 'CONVERSION_EXIT_AHVNR_OUTPUT'
  EXPORTING
    input =                      WA_P2RC_SV-AHVNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_P2RC_SV-AHVNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AHVN2, internal->external for field NAHVN
CALL FUNCTION 'CONVERSION_EXIT_AHVN2_OUTPUT'
  EXPORTING
    input =                      WA_P2RC_SV-NAHVN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_P2RC_SV-NAHVN.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_P2RC_SV_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,
AHVNR TYPE STRING,
AHVPF TYPE STRING,
BTRT1 TYPE STRING,
NBUPF TYPE STRING,
ALVKA TYPE STRING,
FAMKA TYPE STRING,
ALTCD TYPE STRING,
AHPFL TYPE STRING,
EOPFL TYPE STRING,
IVPFL TYPE STRING,
ALPFL TYPE STRING,
VSGES TYPE STRING,
PR_AHV_AG TYPE STRING,
PR_AHV_AN TYPE STRING,
PR_ALV_AG TYPE STRING,
PR_ALV_AN TYPE STRING,
PR_ALV2_AG TYPE STRING,
PR_ALV2_AN TYPE STRING,
PR_BU_AG TYPE STRING,
PR_NBU_AG TYPE STRING,
PR_NBU_AN TYPE STRING,
PR_NBUZ_AG TYPE STRING,
PR_NBUZ_AN TYPE STRING,
MOUVG TYPE STRING,
KZ_AHV_ALV TYPE STRING,
KZ_SUVA TYPE STRING,
PROZSV TYPE STRING,
ABREHAL TYPE STRING,
KZ_UEB TYPE STRING,
ABREHUVG TYPE STRING,
ABREHFAK TYPE STRING,
ABREHSFO TYPE STRING,
ABREHUEB TYPE STRING,
ABREHKT TYPE STRING,
KZ_KT TYPE STRING,
KZ_CUS1 TYPE STRING,
KZ_CUS2 TYPE STRING,
KZ_CUS3 TYPE STRING,
ABREHNBUZ TYPE STRING,
ABREHCU1 TYPE STRING,
ABREHCU2 TYPE STRING,
ABREHCU3 TYPE STRING,
MOREN TYPE STRING,
NAHVN TYPE STRING,
HPN_FAK_CE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P2RC_SV_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_P2RC_SV_STR-MANDT sy-vline 
WA_P2RC_SV_STR-DCT_PERNR sy-vline 
WA_P2RC_SV_STR-DCT_SEQNR sy-vline 
WA_P2RC_SV_STR-DCT_ROWID sy-vline 
WA_P2RC_SV_STR-CNTR1 sy-vline 
WA_P2RC_SV_STR-BEGDA sy-vline 
WA_P2RC_SV_STR-ENDDA sy-vline 
WA_P2RC_SV_STR-AHVNR sy-vline 
WA_P2RC_SV_STR-AHVPF sy-vline 
WA_P2RC_SV_STR-BTRT1 sy-vline 
WA_P2RC_SV_STR-NBUPF sy-vline 
WA_P2RC_SV_STR-ALVKA sy-vline 
WA_P2RC_SV_STR-FAMKA sy-vline 
WA_P2RC_SV_STR-ALTCD sy-vline 
WA_P2RC_SV_STR-AHPFL sy-vline 
WA_P2RC_SV_STR-EOPFL sy-vline 
WA_P2RC_SV_STR-IVPFL sy-vline 
WA_P2RC_SV_STR-ALPFL sy-vline 
WA_P2RC_SV_STR-VSGES sy-vline 
WA_P2RC_SV_STR-PR_AHV_AG sy-vline 
WA_P2RC_SV_STR-PR_AHV_AN sy-vline 
WA_P2RC_SV_STR-PR_ALV_AG sy-vline 
WA_P2RC_SV_STR-PR_ALV_AN sy-vline 
WA_P2RC_SV_STR-PR_ALV2_AG sy-vline 
WA_P2RC_SV_STR-PR_ALV2_AN sy-vline 
WA_P2RC_SV_STR-PR_BU_AG sy-vline 
WA_P2RC_SV_STR-PR_NBU_AG sy-vline 
WA_P2RC_SV_STR-PR_NBU_AN sy-vline 
WA_P2RC_SV_STR-PR_NBUZ_AG sy-vline 
WA_P2RC_SV_STR-PR_NBUZ_AN sy-vline 
WA_P2RC_SV_STR-MOUVG sy-vline 
WA_P2RC_SV_STR-KZ_AHV_ALV sy-vline 
WA_P2RC_SV_STR-KZ_SUVA sy-vline 
WA_P2RC_SV_STR-PROZSV sy-vline 
WA_P2RC_SV_STR-ABREHAL sy-vline 
WA_P2RC_SV_STR-KZ_UEB sy-vline 
WA_P2RC_SV_STR-ABREHUVG sy-vline 
WA_P2RC_SV_STR-ABREHFAK sy-vline 
WA_P2RC_SV_STR-ABREHSFO sy-vline 
WA_P2RC_SV_STR-ABREHUEB sy-vline 
WA_P2RC_SV_STR-ABREHKT sy-vline 
WA_P2RC_SV_STR-KZ_KT sy-vline 
WA_P2RC_SV_STR-KZ_CUS1 sy-vline 
WA_P2RC_SV_STR-KZ_CUS2 sy-vline 
WA_P2RC_SV_STR-KZ_CUS3 sy-vline 
WA_P2RC_SV_STR-ABREHNBUZ sy-vline 
WA_P2RC_SV_STR-ABREHCU1 sy-vline 
WA_P2RC_SV_STR-ABREHCU2 sy-vline 
WA_P2RC_SV_STR-ABREHCU3 sy-vline 
WA_P2RC_SV_STR-MOREN sy-vline 
WA_P2RC_SV_STR-NAHVN sy-vline 
WA_P2RC_SV_STR-HPN_FAK_CE sy-vline      INTO ld_text SEPARATED BY SPACE.

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