ABAP Select data from SAP table PPMGAG_T_DISTRB into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PPMGAG_T_DISTRB
*  INTO TABLE @DATA(IT_PPMGAG_T_DISTRB2).
*--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_PPMGAG_T_DISTRB INDEX 1 INTO DATA(WA_PPMGAG_T_DISTRB2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PPMGAG_T_DISTRB>-MANDT = 1.
<PPMGAG_T_DISTRB>-PREPAYMENTAGRMTDISTRUUID = 1.
<PPMGAG_T_DISTRB>-PREPAYMENTAGREEMENTUUID = 1.
<PPMGAG_T_DISTRB>-PREPAYMENTDISTRTYPE = 1.
<PPMGAG_T_DISTRB>-PREPAYMENTDISTRPAYMENTDATE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PPMGAG_T_DISTRB-PREPAYMENTDISTRBENEFICIARYNAME, sy-vline,
  WA_PPMGAG_T_DISTRB-PREPAYMENTDISTRAMOUNT, sy-vline,
  WA_PPMGAG_T_DISTRB-PREPAYMENTDISTRCURRENCY, sy-vline,
  WA_PPMGAG_T_DISTRB-PREPAYMENTDISTRQUANTITY, sy-vline,
  WA_PPMGAG_T_DISTRB-PREPAYMENTDISTRUOM, sy-vline,
  WA_PPMGAG_T_DISTRB-PREPAYMENTDISTRCNVRSNFCTR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PPMGAG_T_DISTRB 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_PPMGAG_T_DISTRB 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_PPMGAG_T_DISTRB INTO WA_PPMGAG_T_DISTRB.


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

*Conversion exit CUNIT, internal->external for field PREPAYMENTDISTRUOM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PPMGAG_T_DISTRB-PREPAYMENTDISTRUOM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPMGAG_T_DISTRB-PREPAYMENTDISTRUOM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field PREPAYMENTDISTRUNITVALUOM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PPMGAG_T_DISTRB-PREPAYMENTDISTRUNITVALUOM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPMGAG_T_DISTRB-PREPAYMENTDISTRUNITVALUOM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field PREPAYMENTAGREEMENTPRODUCT
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_PPMGAG_T_DISTRB-PREPAYMENTAGREEMENTPRODUCT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPMGAG_T_DISTRB-PREPAYMENTAGREEMENTPRODUCT.
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_PPMGAG_T_DISTRB_STR, 
MANDT TYPE STRING,
PREPAYMENTAGRMTDISTRUUID TYPE STRING,
PREPAYMENTAGREEMENTUUID TYPE STRING,
PREPAYMENTDISTRTYPE TYPE STRING,
PREPAYMENTDISTRPAYMENTDATE TYPE STRING,
PREPAYMENTDISTRBENEFICIARYNAME TYPE STRING,
PREPAYMENTDISTRAMOUNT TYPE STRING,
PREPAYMENTDISTRCURRENCY TYPE STRING,
PREPAYMENTDISTRQUANTITY TYPE STRING,
PREPAYMENTDISTRUOM TYPE STRING,
PREPAYMENTDISTRCNVRSNFCTR TYPE STRING,
PREPAYMENTDISTRUNITVALCRCY TYPE STRING,
PREPAYMENTDISTRUNITVALUOM TYPE STRING,
PREPAYMENTAGREEMENTFXDATE TYPE STRING,
PREPAYMENTAGREEMENTFXRATE TYPE STRING,
PREPAYMENTAGREEMENTEXCHRATE TYPE STRING,
PREPAYMENTAGREEMENTPRODUCT TYPE STRING,
PREPAYMENTAGRMTLINKSTATUS TYPE STRING,
PREPAYMENTAGRMTPOSTINGSTATUS TYPE STRING,
BUYERTAXCODE TYPE STRING,
DOCUMENTITEMNUMBER TYPE STRING,
CREATEDBYUSER TYPE STRING,
CREATIONDATETIME TYPE STRING,
LASTCHANGEDBYUSER TYPE STRING,
LASTCHANGEDATETIME TYPE STRING,
PPMGAG_DUMMY TYPE STRING,
PPMGAC_SUR_DUMMY TYPE STRING,
PPMGAC_BP_DUMMY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PPMGAG_T_DISTRB_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_PPMGAG_T_DISTRB_STR-MANDT sy-vline 
WA_PPMGAG_T_DISTRB_STR-PREPAYMENTAGRMTDISTRUUID sy-vline 
WA_PPMGAG_T_DISTRB_STR-PREPAYMENTAGREEMENTUUID sy-vline 
WA_PPMGAG_T_DISTRB_STR-PREPAYMENTDISTRTYPE sy-vline 
WA_PPMGAG_T_DISTRB_STR-PREPAYMENTDISTRPAYMENTDATE sy-vline 
WA_PPMGAG_T_DISTRB_STR-PREPAYMENTDISTRBENEFICIARYNAME sy-vline 
WA_PPMGAG_T_DISTRB_STR-PREPAYMENTDISTRAMOUNT sy-vline 
WA_PPMGAG_T_DISTRB_STR-PREPAYMENTDISTRCURRENCY sy-vline 
WA_PPMGAG_T_DISTRB_STR-PREPAYMENTDISTRQUANTITY sy-vline 
WA_PPMGAG_T_DISTRB_STR-PREPAYMENTDISTRUOM sy-vline 
WA_PPMGAG_T_DISTRB_STR-PREPAYMENTDISTRCNVRSNFCTR sy-vline 
WA_PPMGAG_T_DISTRB_STR-PREPAYMENTDISTRUNITVALCRCY sy-vline 
WA_PPMGAG_T_DISTRB_STR-PREPAYMENTDISTRUNITVALUOM sy-vline 
WA_PPMGAG_T_DISTRB_STR-PREPAYMENTAGREEMENTFXDATE sy-vline 
WA_PPMGAG_T_DISTRB_STR-PREPAYMENTAGREEMENTFXRATE sy-vline 
WA_PPMGAG_T_DISTRB_STR-PREPAYMENTAGREEMENTEXCHRATE sy-vline 
WA_PPMGAG_T_DISTRB_STR-PREPAYMENTAGREEMENTPRODUCT sy-vline 
WA_PPMGAG_T_DISTRB_STR-PREPAYMENTAGRMTLINKSTATUS sy-vline 
WA_PPMGAG_T_DISTRB_STR-PREPAYMENTAGRMTPOSTINGSTATUS sy-vline 
WA_PPMGAG_T_DISTRB_STR-BUYERTAXCODE sy-vline 
WA_PPMGAG_T_DISTRB_STR-DOCUMENTITEMNUMBER sy-vline 
WA_PPMGAG_T_DISTRB_STR-CREATEDBYUSER sy-vline 
WA_PPMGAG_T_DISTRB_STR-CREATIONDATETIME sy-vline 
WA_PPMGAG_T_DISTRB_STR-LASTCHANGEDBYUSER sy-vline 
WA_PPMGAG_T_DISTRB_STR-LASTCHANGEDATETIME sy-vline 
WA_PPMGAG_T_DISTRB_STR-PPMGAG_DUMMY sy-vline 
WA_PPMGAG_T_DISTRB_STR-PPMGAC_SUR_DUMMY sy-vline 
WA_PPMGAG_T_DISTRB_STR-PPMGAC_BP_DUMMY sy-vline      INTO ld_text SEPARATED BY SPACE.

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