ABAP Select data from SAP table PLFH_DI_DS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PLFH_DI_DS
*  INTO TABLE @DATA(IT_PLFH_DI_DS2).
*--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_PLFH_DI_DS INDEX 1 INTO DATA(WA_PLFH_DI_DS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PLFH_DI_DS>-RECTY = 1.
<PLFH_DI_DS>-ACTTYP = 1.
<PLFH_DI_DS>-PLNTY = 1.
<PLFH_DI_DS>-PLNNR = 1.
<PLFH_DI_DS>-PZLFH = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PLFH_DI_DS-ZAEHL, sy-vline,
  WA_PLFH_DI_DS-DATUV, sy-vline,
  WA_PLFH_DI_DS-TECHV, sy-vline,
  WA_PLFH_DI_DS-LOEKZ, sy-vline,
  WA_PLFH_DI_DS-PARKZ, sy-vline,
  WA_PLFH_DI_DS-AENNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PLFH_DI_DS 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_PLFH_DI_DS 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_PLFH_DI_DS INTO WA_PLFH_DI_DS.


*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 PLNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PLFH_DI_DS-PLNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PLFH_DI_DS-PLNNR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_PLFH_DI_DS-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PLFH_DI_DS-MATNR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

*Conversion exit NUMCV, internal->external for field VORNR
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_PLFH_DI_DS-VORNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PLFH_DI_DS-VORNR.
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_PLFH_DI_DS_STR, 
RECTY TYPE STRING,
ACTTYP TYPE STRING,
PLNTY TYPE STRING,
PLNNR TYPE STRING,
PZLFH TYPE STRING,
ZAEHL TYPE STRING,
DATUV TYPE STRING,
TECHV TYPE STRING,
LOEKZ TYPE STRING,
PARKZ TYPE STRING,
AENNR TYPE STRING,
DATUI TYPE STRING,
USERI TYPE STRING,
DATUC TYPE STRING,
USERC TYPE STRING,
OBJTY TYPE STRING,
OBJID TYPE STRING,
OBJCT TYPE STRING,
PLNAL TYPE STRING,
PLNFL TYPE STRING,
PLNKN TYPE STRING,
PSNFH TYPE STRING,
STEUF TYPE STRING,
KZKBL TYPE STRING,
BZOFFB TYPE STRING,
OFFSTB TYPE STRING,
EHOFFB TYPE STRING,
BZOFFE TYPE STRING,
OFFSTE TYPE STRING,
EHOFFE TYPE STRING,
MGEINH TYPE STRING,
MGVGW TYPE STRING,
MGFORM TYPE STRING,
EWEINH TYPE STRING,
EWVGW TYPE STRING,
EWFORM TYPE STRING,
TXTSP TYPE STRING,
KTSCH TYPE STRING,
TXTZ1 TYPE STRING,
KNOBJ TYPE STRING,
GP_KRIT1 TYPE STRING,
MGSOL TYPE STRING,
MGIST TYPE STRING,
MGRST TYPE STRING,
MGAUS TYPE STRING,
EWSOL TYPE STRING,
EWIST TYPE STRING,
EWRST TYPE STRING,
FHMAR TYPE STRING,
FHMNR TYPE STRING,
FHWRK TYPE STRING,
MATNR TYPE STRING,
SFHNR TYPE STRING,
DOKAR TYPE STRING,
DOKNR TYPE STRING,
DOKTL TYPE STRING,
DOKVR TYPE STRING,
EQUNR TYPE STRING,
EQWPL TYPE STRING,
EQWTX TYPE STRING,
EQPNT TYPE STRING,
EQPTX TYPE STRING,
ATNAM TYPE STRING,
ATVOR TYPE STRING,
MSEHI TYPE STRING,
ATDIM TYPE STRING,
ANZDZ TYPE STRING,
FHKTX TYPE STRING,
BASEH TYPE STRING,
MEINS TYPE STRING,
FGRU1 TYPE STRING,
FGRU2 TYPE STRING,
STOWK TYPE STRING,
STORT TYPE STRING,
STEUF_REF TYPE STRING,
KTSCH_REF TYPE STRING,
BZOFFB_REF TYPE STRING,
OFFSTB_REF TYPE STRING,
BZOFFE_REF TYPE STRING,
OFFSTE_REF TYPE STRING,
MGFORM_REF TYPE STRING,
EWFORM_REF TYPE STRING,
DATUB TYPE STRING,
TXTKZ TYPE STRING,
CF_KZSVS TYPE STRING,
CF_KZSVE TYPE STRING,
CF_KZEVS TYPE STRING,
CF_KZEVE TYPE STRING,
VORNR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PLFH_DI_DS_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_PLFH_DI_DS_STR-RECTY sy-vline 
WA_PLFH_DI_DS_STR-ACTTYP sy-vline 
WA_PLFH_DI_DS_STR-PLNTY sy-vline 
WA_PLFH_DI_DS_STR-PLNNR sy-vline 
WA_PLFH_DI_DS_STR-PZLFH sy-vline 
WA_PLFH_DI_DS_STR-ZAEHL sy-vline 
WA_PLFH_DI_DS_STR-DATUV sy-vline 
WA_PLFH_DI_DS_STR-TECHV sy-vline 
WA_PLFH_DI_DS_STR-LOEKZ sy-vline 
WA_PLFH_DI_DS_STR-PARKZ sy-vline 
WA_PLFH_DI_DS_STR-AENNR sy-vline 
WA_PLFH_DI_DS_STR-DATUI sy-vline 
WA_PLFH_DI_DS_STR-USERI sy-vline 
WA_PLFH_DI_DS_STR-DATUC sy-vline 
WA_PLFH_DI_DS_STR-USERC sy-vline 
WA_PLFH_DI_DS_STR-OBJTY sy-vline 
WA_PLFH_DI_DS_STR-OBJID sy-vline 
WA_PLFH_DI_DS_STR-OBJCT sy-vline 
WA_PLFH_DI_DS_STR-PLNAL sy-vline 
WA_PLFH_DI_DS_STR-PLNFL sy-vline 
WA_PLFH_DI_DS_STR-PLNKN sy-vline 
WA_PLFH_DI_DS_STR-PSNFH sy-vline 
WA_PLFH_DI_DS_STR-STEUF sy-vline 
WA_PLFH_DI_DS_STR-KZKBL sy-vline 
WA_PLFH_DI_DS_STR-BZOFFB sy-vline 
WA_PLFH_DI_DS_STR-OFFSTB sy-vline 
WA_PLFH_DI_DS_STR-EHOFFB sy-vline 
WA_PLFH_DI_DS_STR-BZOFFE sy-vline 
WA_PLFH_DI_DS_STR-OFFSTE sy-vline 
WA_PLFH_DI_DS_STR-EHOFFE sy-vline 
WA_PLFH_DI_DS_STR-MGEINH sy-vline 
WA_PLFH_DI_DS_STR-MGVGW sy-vline 
WA_PLFH_DI_DS_STR-MGFORM sy-vline 
WA_PLFH_DI_DS_STR-EWEINH sy-vline 
WA_PLFH_DI_DS_STR-EWVGW sy-vline 
WA_PLFH_DI_DS_STR-EWFORM sy-vline 
WA_PLFH_DI_DS_STR-TXTSP sy-vline 
WA_PLFH_DI_DS_STR-KTSCH sy-vline 
WA_PLFH_DI_DS_STR-TXTZ1 sy-vline 
WA_PLFH_DI_DS_STR-KNOBJ sy-vline 
WA_PLFH_DI_DS_STR-GP_KRIT1 sy-vline 
WA_PLFH_DI_DS_STR-MGSOL sy-vline 
WA_PLFH_DI_DS_STR-MGIST sy-vline 
WA_PLFH_DI_DS_STR-MGRST sy-vline 
WA_PLFH_DI_DS_STR-MGAUS sy-vline 
WA_PLFH_DI_DS_STR-EWSOL sy-vline 
WA_PLFH_DI_DS_STR-EWIST sy-vline 
WA_PLFH_DI_DS_STR-EWRST sy-vline 
WA_PLFH_DI_DS_STR-FHMAR sy-vline 
WA_PLFH_DI_DS_STR-FHMNR sy-vline 
WA_PLFH_DI_DS_STR-FHWRK sy-vline 
WA_PLFH_DI_DS_STR-MATNR sy-vline 
WA_PLFH_DI_DS_STR-SFHNR sy-vline 
WA_PLFH_DI_DS_STR-DOKAR sy-vline 
WA_PLFH_DI_DS_STR-DOKNR sy-vline 
WA_PLFH_DI_DS_STR-DOKTL sy-vline 
WA_PLFH_DI_DS_STR-DOKVR sy-vline 
WA_PLFH_DI_DS_STR-EQUNR sy-vline 
WA_PLFH_DI_DS_STR-EQWPL sy-vline 
WA_PLFH_DI_DS_STR-EQWTX sy-vline 
WA_PLFH_DI_DS_STR-EQPNT sy-vline 
WA_PLFH_DI_DS_STR-EQPTX sy-vline 
WA_PLFH_DI_DS_STR-ATNAM sy-vline 
WA_PLFH_DI_DS_STR-ATVOR sy-vline 
WA_PLFH_DI_DS_STR-MSEHI sy-vline 
WA_PLFH_DI_DS_STR-ATDIM sy-vline 
WA_PLFH_DI_DS_STR-ANZDZ sy-vline 
WA_PLFH_DI_DS_STR-FHKTX sy-vline 
WA_PLFH_DI_DS_STR-BASEH sy-vline 
WA_PLFH_DI_DS_STR-MEINS sy-vline 
WA_PLFH_DI_DS_STR-FGRU1 sy-vline 
WA_PLFH_DI_DS_STR-FGRU2 sy-vline 
WA_PLFH_DI_DS_STR-STOWK sy-vline 
WA_PLFH_DI_DS_STR-STORT sy-vline 
WA_PLFH_DI_DS_STR-STEUF_REF sy-vline 
WA_PLFH_DI_DS_STR-KTSCH_REF sy-vline 
WA_PLFH_DI_DS_STR-BZOFFB_REF sy-vline 
WA_PLFH_DI_DS_STR-OFFSTB_REF sy-vline 
WA_PLFH_DI_DS_STR-BZOFFE_REF sy-vline 
WA_PLFH_DI_DS_STR-OFFSTE_REF sy-vline 
WA_PLFH_DI_DS_STR-MGFORM_REF sy-vline 
WA_PLFH_DI_DS_STR-EWFORM_REF sy-vline 
WA_PLFH_DI_DS_STR-DATUB sy-vline 
WA_PLFH_DI_DS_STR-TXTKZ sy-vline 
WA_PLFH_DI_DS_STR-CF_KZSVS sy-vline 
WA_PLFH_DI_DS_STR-CF_KZSVE sy-vline 
WA_PLFH_DI_DS_STR-CF_KZEVS sy-vline 
WA_PLFH_DI_DS_STR-CF_KZEVE sy-vline 
WA_PLFH_DI_DS_STR-VORNR sy-vline      INTO ld_text SEPARATED BY SPACE.

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