ABAP Select data from SAP table P2010_AF into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP P2010_AF 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 P2010_AF. 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 P2010_AF 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_P2010_AF TYPE STANDARD TABLE OF P2010_AF,
      WA_P2010_AF TYPE P2010_AF,
      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: <P2010_AF> TYPE P2010_AF.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P2010_AF.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P2010_AF
  INTO TABLE IT_P2010_AF.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P2010_AF
*  INTO TABLE @DATA(IT_P2010_AF2).
*--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_P2010_AF INDEX 1 INTO DATA(WA_P2010_AF2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P2010_AF ASSIGNING <P2010_AF>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P2010_AF>-REPTT = 1.
<P2010_AF>-INDCOS = 1.
<P2010_AF>-TDTYPE = 1.
<P2010_AF>-BUKRS_CO = 1.
<P2010_AF>-GSBER_CO = 1.

ENDLOOP.

LOOP AT IT_P2010_AF INTO WA_P2010_AF.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P2010_AF-KOKRS_CO, sy-vline,
  WA_P2010_AF-KOSTL_CO, sy-vline,
  WA_P2010_AF-AUFNR_CO, sy-vline,
  WA_P2010_AF-PS_PO_CO, sy-vline,
  WA_P2010_AF-LSTAR_CO, sy-vline,
  WA_P2010_AF-VORNR_CO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P2010_AF 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_P2010_AF 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_P2010_AF INTO WA_P2010_AF.


*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 TDTYP, internal->external for field TDTYPE
CALL FUNCTION 'CONVERSION_EXIT_TDTYP_OUTPUT'
  EXPORTING
    input =                      WA_P2010_AF-TDTYPE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_P2010_AF-TDTYPE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KOSTL_CO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_P2010_AF-KOSTL_CO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_P2010_AF-KOSTL_CO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AUFNR_CO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_P2010_AF-AUFNR_CO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_P2010_AF-AUFNR_CO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSN, internal->external for field PS_PO_CO
CALL FUNCTION 'CONVERSION_EXIT_ABPSN_OUTPUT'
  EXPORTING
    input =                      WA_P2010_AF-PS_PO_CO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_P2010_AF-PS_PO_CO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit NUMCV, internal->external for field VORNR_CO
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_P2010_AF-VORNR_CO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_P2010_AF-VORNR_CO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field NPLNR_CO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_P2010_AF-NPLNR_CO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_P2010_AF-NPLNR_CO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit FMCIS, internal->external for field FIPOS_CO
CALL FUNCTION 'CONVERSION_EXIT_FMCIS_OUTPUT'
  EXPORTING
    input =                      WA_P2010_AF-FIPOS_CO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_P2010_AF-FIPOS_CO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KOSTL_AR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_P2010_AF-KOSTL_AR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_P2010_AF-KOSTL_AR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AUFNR_AR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_P2010_AF-AUFNR_AR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_P2010_AF-AUFNR_AR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSN, internal->external for field PS_PO_AR
CALL FUNCTION 'CONVERSION_EXIT_ABPSN_OUTPUT'
  EXPORTING
    input =                      WA_P2010_AF-PS_PO_AR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_P2010_AF-PS_PO_AR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CO_PR_AR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_P2010_AF-CO_PR_AR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_P2010_AF-CO_PR_AR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field NPLNR_AR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_P2010_AF-NPLNR_AR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_P2010_AF-NPLNR_AR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit NUMCV, internal->external for field VORNR_AR
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_P2010_AF-VORNR_AR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_P2010_AF-VORNR_AR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KOSTL_AS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_P2010_AF-KOSTL_AS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_P2010_AF-KOSTL_AS.
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_P2010_AF_STR, 
REPTT TYPE STRING,
INDCOS TYPE STRING,
TDTYPE TYPE STRING,
BUKRS_CO TYPE STRING,
GSBER_CO TYPE STRING,
KOKRS_CO TYPE STRING,
KOSTL_CO TYPE STRING,
AUFNR_CO TYPE STRING,
PS_PO_CO TYPE STRING,
LSTAR_CO TYPE STRING,
VORNR_CO TYPE STRING,
NPLNR_CO TYPE STRING,
FISTL_CO TYPE STRING,
FIPOS_CO TYPE STRING,
GEBER_CO TYPE STRING,
DART_CO TYPE STRING,
UDART_CO TYPE STRING,
BUKRS_AR TYPE STRING,
KOKRS_AR TYPE STRING,
GSBER_AR TYPE STRING,
KOSTL_AR TYPE STRING,
AUFNR_AR TYPE STRING,
PS_PO_AR TYPE STRING,
CO_PR_AR TYPE STRING,
NPLNR_AR TYPE STRING,
VORNR_AR TYPE STRING,
BUKRS_AS TYPE STRING,
GSBER_AS TYPE STRING,
KOSTL_AS TYPE STRING,
LSTAR_AS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P2010_AF_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_P2010_AF_STR-REPTT sy-vline 
WA_P2010_AF_STR-INDCOS sy-vline 
WA_P2010_AF_STR-TDTYPE sy-vline 
WA_P2010_AF_STR-BUKRS_CO sy-vline 
WA_P2010_AF_STR-GSBER_CO sy-vline 
WA_P2010_AF_STR-KOKRS_CO sy-vline 
WA_P2010_AF_STR-KOSTL_CO sy-vline 
WA_P2010_AF_STR-AUFNR_CO sy-vline 
WA_P2010_AF_STR-PS_PO_CO sy-vline 
WA_P2010_AF_STR-LSTAR_CO sy-vline 
WA_P2010_AF_STR-VORNR_CO sy-vline 
WA_P2010_AF_STR-NPLNR_CO sy-vline 
WA_P2010_AF_STR-FISTL_CO sy-vline 
WA_P2010_AF_STR-FIPOS_CO sy-vline 
WA_P2010_AF_STR-GEBER_CO sy-vline 
WA_P2010_AF_STR-DART_CO sy-vline 
WA_P2010_AF_STR-UDART_CO sy-vline 
WA_P2010_AF_STR-BUKRS_AR sy-vline 
WA_P2010_AF_STR-KOKRS_AR sy-vline 
WA_P2010_AF_STR-GSBER_AR sy-vline 
WA_P2010_AF_STR-KOSTL_AR sy-vline 
WA_P2010_AF_STR-AUFNR_AR sy-vline 
WA_P2010_AF_STR-PS_PO_AR sy-vline 
WA_P2010_AF_STR-CO_PR_AR sy-vline 
WA_P2010_AF_STR-NPLNR_AR sy-vline 
WA_P2010_AF_STR-VORNR_AR sy-vline 
WA_P2010_AF_STR-BUKRS_AS sy-vline 
WA_P2010_AF_STR-GSBER_AS sy-vline 
WA_P2010_AF_STR-KOSTL_AS sy-vline 
WA_P2010_AF_STR-LSTAR_AS sy-vline      INTO ld_text SEPARATED BY SPACE.

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