ABAP Select data from SAP table PSG_PNMED_DETAIL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PSG_PNMED_DETAIL
*  INTO TABLE @DATA(IT_PSG_PNMED_DETAIL2).
*--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_PSG_PNMED_DETAIL INDEX 1 INTO DATA(WA_PSG_PNMED_DETAIL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PSG_PNMED_DETAIL>-PERNR = 1.
<PSG_PNMED_DETAIL>-NACHN = 1.
<PSG_PNMED_DETAIL>-VORNA = 1.
<PSG_PNMED_DETAIL>-ENAME = 1.
<PSG_PNMED_DETAIL>-BUKRS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PSG_PNMED_DETAIL-WERKS, sy-vline,
  WA_PSG_PNMED_DETAIL-BTRTL, sy-vline,
  WA_PSG_PNMED_DETAIL-PERSG, sy-vline,
  WA_PSG_PNMED_DETAIL-PERSK, sy-vline,
  WA_PSG_PNMED_DETAIL-ABKRS, sy-vline,
  WA_PSG_PNMED_DETAIL-KOSTL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PSG_PNMED_DETAIL 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_PSG_PNMED_DETAIL 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_PSG_PNMED_DETAIL INTO WA_PSG_PNMED_DETAIL.


*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 KOSTL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PSG_PNMED_DETAIL-KOSTL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PSG_PNMED_DETAIL-KOSTL.
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_PSG_PNMED_DETAIL_STR, 
PERNR TYPE STRING,
NACHN TYPE STRING,
VORNA TYPE STRING,
ENAME TYPE STRING,
BUKRS TYPE STRING,
WERKS TYPE STRING,
BTRTL TYPE STRING,
PERSG TYPE STRING,
PERSK TYPE STRING,
ABKRS TYPE STRING,
KOSTL TYPE STRING,
ADID1 TYPE STRING,
ADNA1 TYPE STRING,
ADID2 TYPE STRING,
ADNA2 TYPE STRING,
ADID3 TYPE STRING,
ADNA3 TYPE STRING,
ADID4 TYPE STRING,
ADNA4 TYPE STRING,
ADID5 TYPE STRING,
ADNA5 TYPE STRING,
FUNTY TYPE STRING,
FUNDN TYPE STRING,
BAREA TYPE STRING,
BENGR TYPE STRING,
BSTAT TYPE STRING,
PLTYP TYPE STRING,
BPLAN TYPE STRING,
LEVL1 TYPE STRING,
BOPTI TYPE STRING,
DIVIS TYPE STRING,
ELIGB TYPE STRING,
TRFAR TYPE STRING,
TRFGB TYPE STRING,
TRFGR TYPE STRING,
TRFST TYPE STRING,
PSCPF TYPE STRING,
SCHEM TYPE STRING,
FUNTG TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PSG_PNMED_DETAIL_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_PSG_PNMED_DETAIL_STR-PERNR sy-vline 
WA_PSG_PNMED_DETAIL_STR-NACHN sy-vline 
WA_PSG_PNMED_DETAIL_STR-VORNA sy-vline 
WA_PSG_PNMED_DETAIL_STR-ENAME sy-vline 
WA_PSG_PNMED_DETAIL_STR-BUKRS sy-vline 
WA_PSG_PNMED_DETAIL_STR-WERKS sy-vline 
WA_PSG_PNMED_DETAIL_STR-BTRTL sy-vline 
WA_PSG_PNMED_DETAIL_STR-PERSG sy-vline 
WA_PSG_PNMED_DETAIL_STR-PERSK sy-vline 
WA_PSG_PNMED_DETAIL_STR-ABKRS sy-vline 
WA_PSG_PNMED_DETAIL_STR-KOSTL sy-vline 
WA_PSG_PNMED_DETAIL_STR-ADID1 sy-vline 
WA_PSG_PNMED_DETAIL_STR-ADNA1 sy-vline 
WA_PSG_PNMED_DETAIL_STR-ADID2 sy-vline 
WA_PSG_PNMED_DETAIL_STR-ADNA2 sy-vline 
WA_PSG_PNMED_DETAIL_STR-ADID3 sy-vline 
WA_PSG_PNMED_DETAIL_STR-ADNA3 sy-vline 
WA_PSG_PNMED_DETAIL_STR-ADID4 sy-vline 
WA_PSG_PNMED_DETAIL_STR-ADNA4 sy-vline 
WA_PSG_PNMED_DETAIL_STR-ADID5 sy-vline 
WA_PSG_PNMED_DETAIL_STR-ADNA5 sy-vline 
WA_PSG_PNMED_DETAIL_STR-FUNTY sy-vline 
WA_PSG_PNMED_DETAIL_STR-FUNDN sy-vline 
WA_PSG_PNMED_DETAIL_STR-BAREA sy-vline 
WA_PSG_PNMED_DETAIL_STR-BENGR sy-vline 
WA_PSG_PNMED_DETAIL_STR-BSTAT sy-vline 
WA_PSG_PNMED_DETAIL_STR-PLTYP sy-vline 
WA_PSG_PNMED_DETAIL_STR-BPLAN sy-vline 
WA_PSG_PNMED_DETAIL_STR-LEVL1 sy-vline 
WA_PSG_PNMED_DETAIL_STR-BOPTI sy-vline 
WA_PSG_PNMED_DETAIL_STR-DIVIS sy-vline 
WA_PSG_PNMED_DETAIL_STR-ELIGB sy-vline 
WA_PSG_PNMED_DETAIL_STR-TRFAR sy-vline 
WA_PSG_PNMED_DETAIL_STR-TRFGB sy-vline 
WA_PSG_PNMED_DETAIL_STR-TRFGR sy-vline 
WA_PSG_PNMED_DETAIL_STR-TRFST sy-vline 
WA_PSG_PNMED_DETAIL_STR-PSCPF sy-vline 
WA_PSG_PNMED_DETAIL_STR-SCHEM sy-vline 
WA_PSG_PNMED_DETAIL_STR-FUNTG sy-vline 
WA_PSG_PNMED_DETAIL_STR-BEGDA sy-vline 
WA_PSG_PNMED_DETAIL_STR-ENDDA sy-vline      INTO ld_text SEPARATED BY SPACE.

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