ABAP Select data from SAP table /STTPEC/S_TO_SRCDEST_DYNFLD into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /STTPEC/S_TO_SRCDEST_DYNFLD 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 /STTPEC/S_TO_SRCDEST_DYNFLD. 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 /STTPEC/S_TO_SRCDEST_DYNFLD 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_/STTPEC/S_TO_SRCDEST_DYNFLD TYPE STANDARD TABLE OF /STTPEC/S_TO_SRCDEST_DYNFLD,
      WA_/STTPEC/S_TO_SRCDEST_DYNFLD TYPE /STTPEC/S_TO_SRCDEST_DYNFLD,
      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: </STTPEC/S_TO_SRCDEST_DYNFLD> TYPE /STTPEC/S_TO_SRCDEST_DYNFLD.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /STTPEC/S_TO_SRCDEST_DYNFLD
  INTO TABLE IT_/STTPEC/S_TO_SRCDEST_DYNFLD.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /STTPEC/S_TO_SRCDEST_DYNFLD
*  INTO TABLE @DATA(IT_/STTPEC/S_TO_SRCDEST_DYNFLD2).
*--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_/STTPEC/S_TO_SRCDEST_DYNFLD INDEX 1 INTO DATA(WA_/STTPEC/S_TO_SRCDEST_DYNFLD2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/STTPEC/S_TO_SRCDEST_DYNFLD ASSIGNING </STTPEC/S_TO_SRCDEST_DYNFLD>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</STTPEC/S_TO_SRCDEST_DYNFLD>-LINE_NO = 1.
</STTPEC/S_TO_SRCDEST_DYNFLD>-TANUM = 1.
</STTPEC/S_TO_SRCDEST_DYNFLD>-NOITM = 1.
</STTPEC/S_TO_SRCDEST_DYNFLD>-NLTYP_SD = 1.
</STTPEC/S_TO_SRCDEST_DYNFLD>-NLBER_SD = 1.

ENDLOOP.

LOOP AT IT_/STTPEC/S_TO_SRCDEST_DYNFLD INTO WA_/STTPEC/S_TO_SRCDEST_DYNFLD.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/STTPEC/S_TO_SRCDEST_DYNFLD-NLPLA_SD, sy-vline,
  WA_/STTPEC/S_TO_SRCDEST_DYNFLD-VLTYP_SD, sy-vline,
  WA_/STTPEC/S_TO_SRCDEST_DYNFLD-VLBER_SD, sy-vline,
  WA_/STTPEC/S_TO_SRCDEST_DYNFLD-VLPLA_SD, sy-vline,
  WA_/STTPEC/S_TO_SRCDEST_DYNFLD-TAPOS, sy-vline,
  WA_/STTPEC/S_TO_SRCDEST_DYNFLD-POSNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/STTPEC/S_TO_SRCDEST_DYNFLD 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_/STTPEC/S_TO_SRCDEST_DYNFLD 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_/STTPEC/S_TO_SRCDEST_DYNFLD INTO WA_/STTPEC/S_TO_SRCDEST_DYNFLD.


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

*Conversion exit ALPHA, internal->external for field VBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/STTPEC/S_TO_SRCDEST_DYNFLD-VBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/STTPEC/S_TO_SRCDEST_DYNFLD-VBELN.
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_/STTPEC/S_TO_SRCDEST_DYNFLD_STR, 
LINE_NO TYPE STRING,
TANUM TYPE STRING,
NOITM TYPE STRING,
NLTYP_SD TYPE STRING,
NLBER_SD TYPE STRING,
NLPLA_SD TYPE STRING,
VLTYP_SD TYPE STRING,
VLBER_SD TYPE STRING,
VLPLA_SD TYPE STRING,
TAPOS TYPE STRING,
POSNR TYPE STRING,
PQUIT TYPE STRING,
MATNR TYPE STRING,
MAKTX TYPE STRING,
LOTNO TYPE STRING,
SERTYPE TYPE STRING,
SERTYPE_DDTEXT TYPE STRING,
LOCNO TYPE STRING,
NLTYP TYPE STRING,
NLBER TYPE STRING,
NLPLA TYPE STRING,
VLTYP TYPE STRING,
VLBER TYPE STRING,
VLPLA TYPE STRING,
QTY_REQ TYPE STRING,
QTY_ACT TYPE STRING,
UNIT TYPE STRING,
VBELN TYPE STRING,
CVLPLA TYPE STRING,
CNLPLA TYPE STRING,
SCANNED_TOTAL TYPE STRING,
SCANNED_OBJ TYPE STRING,
CODE_CHAR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/STTPEC/S_TO_SRCDEST_DYNFLD_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_/STTPEC/S_TO_SRCDEST_DYNFLD_STR-LINE_NO sy-vline 
WA_/STTPEC/S_TO_SRCDEST_DYNFLD_STR-TANUM sy-vline 
WA_/STTPEC/S_TO_SRCDEST_DYNFLD_STR-NOITM sy-vline 
WA_/STTPEC/S_TO_SRCDEST_DYNFLD_STR-NLTYP_SD sy-vline 
WA_/STTPEC/S_TO_SRCDEST_DYNFLD_STR-NLBER_SD sy-vline 
WA_/STTPEC/S_TO_SRCDEST_DYNFLD_STR-NLPLA_SD sy-vline 
WA_/STTPEC/S_TO_SRCDEST_DYNFLD_STR-VLTYP_SD sy-vline 
WA_/STTPEC/S_TO_SRCDEST_DYNFLD_STR-VLBER_SD sy-vline 
WA_/STTPEC/S_TO_SRCDEST_DYNFLD_STR-VLPLA_SD sy-vline 
WA_/STTPEC/S_TO_SRCDEST_DYNFLD_STR-TAPOS sy-vline 
WA_/STTPEC/S_TO_SRCDEST_DYNFLD_STR-POSNR sy-vline 
WA_/STTPEC/S_TO_SRCDEST_DYNFLD_STR-PQUIT sy-vline 
WA_/STTPEC/S_TO_SRCDEST_DYNFLD_STR-MATNR sy-vline 
WA_/STTPEC/S_TO_SRCDEST_DYNFLD_STR-MAKTX sy-vline 
WA_/STTPEC/S_TO_SRCDEST_DYNFLD_STR-LOTNO sy-vline 
WA_/STTPEC/S_TO_SRCDEST_DYNFLD_STR-SERTYPE sy-vline 
WA_/STTPEC/S_TO_SRCDEST_DYNFLD_STR-SERTYPE_DDTEXT sy-vline 
WA_/STTPEC/S_TO_SRCDEST_DYNFLD_STR-LOCNO sy-vline 
WA_/STTPEC/S_TO_SRCDEST_DYNFLD_STR-NLTYP sy-vline 
WA_/STTPEC/S_TO_SRCDEST_DYNFLD_STR-NLBER sy-vline 
WA_/STTPEC/S_TO_SRCDEST_DYNFLD_STR-NLPLA sy-vline 
WA_/STTPEC/S_TO_SRCDEST_DYNFLD_STR-VLTYP sy-vline 
WA_/STTPEC/S_TO_SRCDEST_DYNFLD_STR-VLBER sy-vline 
WA_/STTPEC/S_TO_SRCDEST_DYNFLD_STR-VLPLA sy-vline 
WA_/STTPEC/S_TO_SRCDEST_DYNFLD_STR-QTY_REQ sy-vline 
WA_/STTPEC/S_TO_SRCDEST_DYNFLD_STR-QTY_ACT sy-vline 
WA_/STTPEC/S_TO_SRCDEST_DYNFLD_STR-UNIT sy-vline 
WA_/STTPEC/S_TO_SRCDEST_DYNFLD_STR-VBELN sy-vline 
WA_/STTPEC/S_TO_SRCDEST_DYNFLD_STR-CVLPLA sy-vline 
WA_/STTPEC/S_TO_SRCDEST_DYNFLD_STR-CNLPLA sy-vline 
WA_/STTPEC/S_TO_SRCDEST_DYNFLD_STR-SCANNED_TOTAL sy-vline 
WA_/STTPEC/S_TO_SRCDEST_DYNFLD_STR-SCANNED_OBJ sy-vline 
WA_/STTPEC/S_TO_SRCDEST_DYNFLD_STR-CODE_CHAR sy-vline      INTO ld_text SEPARATED BY SPACE.

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