ABAP Select data from SAP table WFMS_AVAIL_TMP_INTV into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM WFMS_AVAIL_TMP_INTV
*  INTO TABLE @DATA(IT_WFMS_AVAIL_TMP_INTV2).
*--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_WFMS_AVAIL_TMP_INTV INDEX 1 INTO DATA(WA_WFMS_AVAIL_TMP_INTV2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<WFMS_AVAIL_TMP_INTV>-LOCATION_TYPE = 1.
<WFMS_AVAIL_TMP_INTV>-AVAIL_TMP_ID = 1.
<WFMS_AVAIL_TMP_INTV>-INTVINDEX = 1.
<WFMS_AVAIL_TMP_INTV>-STARTTIMEDAY = 1.
<WFMS_AVAIL_TMP_INTV>-ENDTIMEDAY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_WFMS_AVAIL_TMP_INTV-STARTTIME, sy-vline,
  WA_WFMS_AVAIL_TMP_INTV-ENDTIME, sy-vline,
  WA_WFMS_AVAIL_TMP_INTV-STARTOFFSETTYPE, sy-vline,
  WA_WFMS_AVAIL_TMP_INTV-STARTOFFSET, sy-vline,
  WA_WFMS_AVAIL_TMP_INTV-ENDOFFSETTYPE, sy-vline,
  WA_WFMS_AVAIL_TMP_INTV-ENDOFFSET, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_WFMS_AVAIL_TMP_INTV 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_WFMS_AVAIL_TMP_INTV 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_WFMS_AVAIL_TMP_INTV INTO WA_WFMS_AVAIL_TMP_INTV.


*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_WFMS_AVAIL_TMP_INTV-LOCATION_TYPE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WFMS_AVAIL_TMP_INTV-LOCATION_TYPE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AVAIL_TMP_ID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_WFMS_AVAIL_TMP_INTV-AVAIL_TMP_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WFMS_AVAIL_TMP_INTV-AVAIL_TMP_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_WFMS_AVAIL_TMP_INTV_STR, 
LOCATION_TYPE TYPE STRING,
AVAIL_TMP_ID TYPE STRING,
INTVINDEX 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_WFMS_AVAIL_TMP_INTV_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_WFMS_AVAIL_TMP_INTV_STR-LOCATION_TYPE sy-vline 
WA_WFMS_AVAIL_TMP_INTV_STR-AVAIL_TMP_ID sy-vline 
WA_WFMS_AVAIL_TMP_INTV_STR-INTVINDEX sy-vline 
WA_WFMS_AVAIL_TMP_INTV_STR-STARTTIMEDAY sy-vline 
WA_WFMS_AVAIL_TMP_INTV_STR-ENDTIMEDAY sy-vline 
WA_WFMS_AVAIL_TMP_INTV_STR-STARTTIME sy-vline 
WA_WFMS_AVAIL_TMP_INTV_STR-ENDTIME sy-vline 
WA_WFMS_AVAIL_TMP_INTV_STR-STARTOFFSETTYPE sy-vline 
WA_WFMS_AVAIL_TMP_INTV_STR-STARTOFFSET sy-vline 
WA_WFMS_AVAIL_TMP_INTV_STR-ENDOFFSETTYPE sy-vline 
WA_WFMS_AVAIL_TMP_INTV_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.