ABAP Select data from SAP table WFMC_SETSHFT_INT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM WFMC_SETSHFT_INT
*  INTO TABLE @DATA(IT_WFMC_SETSHFT_INT2).
*--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_WFMC_SETSHFT_INT INDEX 1 INTO DATA(WA_WFMC_SETSHFT_INT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<WFMC_SETSHFT_INT>-MANDT = 1.
<WFMC_SETSHFT_INT>-LOCATION_TYPE = 1.
<WFMC_SETSHFT_INT>-ST_SHFT_TMPLT_ID = 1.
<WFMC_SETSHFT_INT>-INTVINDEX = 1.
<WFMC_SETSHFT_INT>-SHIFTTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_WFMC_SETSHFT_INT-STARTTIMEDAY, sy-vline,
  WA_WFMC_SETSHFT_INT-ENDTIMEDAY, sy-vline,
  WA_WFMC_SETSHFT_INT-STARTTIME, sy-vline,
  WA_WFMC_SETSHFT_INT-ENDTIME, sy-vline,
  WA_WFMC_SETSHFT_INT-STARTOFFSETTYPE, sy-vline,
  WA_WFMC_SETSHFT_INT-STARTOFFSET, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_WFMC_SETSHFT_INT 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_WFMC_SETSHFT_INT 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_WFMC_SETSHFT_INT INTO WA_WFMC_SETSHFT_INT.


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

*Conversion exit ALPHA, internal->external for field ST_SHFT_TMPLT_ID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_WFMC_SETSHFT_INT-ST_SHFT_TMPLT_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WFMC_SETSHFT_INT-ST_SHFT_TMPLT_ID.
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_WFMC_SETSHFT_INT_STR, 
MANDT TYPE STRING,
LOCATION_TYPE TYPE STRING,
ST_SHFT_TMPLT_ID TYPE STRING,
INTVINDEX TYPE STRING,
SHIFTTYPE TYPE STRING,
STARTTIMEDAY TYPE STRING,
ENDTIMEDAY TYPE STRING,
STARTTIME TYPE STRING,
ENDTIME TYPE STRING,
STARTOFFSETTYPE TYPE STRING,
STARTOFFSET TYPE STRING,
ENDOFFSETTYPE TYPE STRING,
ENDOFFSET TYPE STRING,END OF T_EKKO_STR.
DATA: WA_WFMC_SETSHFT_INT_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_WFMC_SETSHFT_INT_STR-MANDT sy-vline 
WA_WFMC_SETSHFT_INT_STR-LOCATION_TYPE sy-vline 
WA_WFMC_SETSHFT_INT_STR-ST_SHFT_TMPLT_ID sy-vline 
WA_WFMC_SETSHFT_INT_STR-INTVINDEX sy-vline 
WA_WFMC_SETSHFT_INT_STR-SHIFTTYPE sy-vline 
WA_WFMC_SETSHFT_INT_STR-STARTTIMEDAY sy-vline 
WA_WFMC_SETSHFT_INT_STR-ENDTIMEDAY sy-vline 
WA_WFMC_SETSHFT_INT_STR-STARTTIME sy-vline 
WA_WFMC_SETSHFT_INT_STR-ENDTIME sy-vline 
WA_WFMC_SETSHFT_INT_STR-STARTOFFSETTYPE sy-vline 
WA_WFMC_SETSHFT_INT_STR-STARTOFFSET sy-vline 
WA_WFMC_SETSHFT_INT_STR-ENDOFFSETTYPE sy-vline 
WA_WFMC_SETSHFT_INT_STR-ENDOFFSET sy-vline      INTO ld_text SEPARATED BY SPACE.

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