ABAP Select data from SAP table /SCWM/S_MFSDELAY_MON into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SCWM/S_MFSDELAY_MON
*  INTO TABLE @DATA(IT_/SCWM/S_MFSDELAY_MON2).
*--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_/SCWM/S_MFSDELAY_MON INDEX 1 INTO DATA(WA_/SCWM/S_MFSDELAY_MON2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SCWM/S_MFSDELAY_MON>-MANDT = 1.
</SCWM/S_MFSDELAY_MON>-LGNUM = 1.
</SCWM/S_MFSDELAY_MON>-PLC = 1.
</SCWM/S_MFSDELAY_MON>-CHANNEL = 1.
</SCWM/S_MFSDELAY_MON>-CREATED_DATE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SCWM/S_MFSDELAY_MON-CREATED_TIME, sy-vline,
  WA_/SCWM/S_MFSDELAY_MON-CREATED_MS, sy-vline,
  WA_/SCWM/S_MFSDELAY_MON-CREATED_AT, sy-vline,
  WA_/SCWM/S_MFSDELAY_MON-TS_DATE, sy-vline,
  WA_/SCWM/S_MFSDELAY_MON-TS_TIME, sy-vline,
  WA_/SCWM/S_MFSDELAY_MON-TS_TIME_MS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SCWM/S_MFSDELAY_MON 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_/SCWM/S_MFSDELAY_MON 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_/SCWM/S_MFSDELAY_MON INTO WA_/SCWM/S_MFSDELAY_MON.


*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 HUID, internal->external for field HUIDENT
CALL FUNCTION 'CONVERSION_EXIT_HUID_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_MFSDELAY_MON-HUIDENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_MFSDELAY_MON-HUIDENT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field UNIT_HUW
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_MFSDELAY_MON-UNIT_HUW
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_MFSDELAY_MON-UNIT_HUW.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field UNIT_HUV
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_MFSDELAY_MON-UNIT_HUV
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_MFSDELAY_MON-UNIT_HUV.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field UNIT_D
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_MFSDELAY_MON-UNIT_D
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_MFSDELAY_MON-UNIT_D.
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_/SCWM/S_MFSDELAY_MON_STR, 
MANDT TYPE STRING,
LGNUM TYPE STRING,
PLC TYPE STRING,
CHANNEL TYPE STRING,
CREATED_DATE TYPE STRING,
CREATED_TIME TYPE STRING,
CREATED_MS TYPE STRING,
CREATED_AT TYPE STRING,
TS_DATE TYPE STRING,
TS_TIME TYPE STRING,
TS_TIME_MS TYPE STRING,
RETRY TYPE STRING,
SENDER TYPE STRING,
RECEIVER TYPE STRING,
CP TYPE STRING,
HANDSHAKE TYPE STRING,
SEQU_NO TYPE STRING,
COMM_ERROR TYPE STRING,
TELETYPE TYPE STRING,
HUIDENT TYPE STRING,
HUTYP TYPE STRING,
STARTCHAR TYPE STRING,
ENDCHAR TYPE STRING,
SOURCE TYPE STRING,
SLOGPOS TYPE STRING,
DEST TYPE STRING,
DLOGPOS TYPE STRING,
MFS_ERROR TYPE STRING,
CS TYPE STRING,
CSGR TYPE STRING,
RSRC TYPE STRING,
HU_WEIGHT TYPE STRING,
UNIT_HUW TYPE STRING,
HU_VOLUME TYPE STRING,
UNIT_HUV TYPE STRING,
LENGTH TYPE STRING,
WIDTH TYPE STRING,
HEIGHT TYPE STRING,
UNIT_D TYPE STRING,
PLCOBJ TYPE STRING,
FINAL_DEST TYPE STRING,
DUMMY_TELE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SCWM/S_MFSDELAY_MON_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_/SCWM/S_MFSDELAY_MON_STR-MANDT sy-vline 
WA_/SCWM/S_MFSDELAY_MON_STR-LGNUM sy-vline 
WA_/SCWM/S_MFSDELAY_MON_STR-PLC sy-vline 
WA_/SCWM/S_MFSDELAY_MON_STR-CHANNEL sy-vline 
WA_/SCWM/S_MFSDELAY_MON_STR-CREATED_DATE sy-vline 
WA_/SCWM/S_MFSDELAY_MON_STR-CREATED_TIME sy-vline 
WA_/SCWM/S_MFSDELAY_MON_STR-CREATED_MS sy-vline 
WA_/SCWM/S_MFSDELAY_MON_STR-CREATED_AT sy-vline 
WA_/SCWM/S_MFSDELAY_MON_STR-TS_DATE sy-vline 
WA_/SCWM/S_MFSDELAY_MON_STR-TS_TIME sy-vline 
WA_/SCWM/S_MFSDELAY_MON_STR-TS_TIME_MS sy-vline 
WA_/SCWM/S_MFSDELAY_MON_STR-RETRY sy-vline 
WA_/SCWM/S_MFSDELAY_MON_STR-SENDER sy-vline 
WA_/SCWM/S_MFSDELAY_MON_STR-RECEIVER sy-vline 
WA_/SCWM/S_MFSDELAY_MON_STR-CP sy-vline 
WA_/SCWM/S_MFSDELAY_MON_STR-HANDSHAKE sy-vline 
WA_/SCWM/S_MFSDELAY_MON_STR-SEQU_NO sy-vline 
WA_/SCWM/S_MFSDELAY_MON_STR-COMM_ERROR sy-vline 
WA_/SCWM/S_MFSDELAY_MON_STR-TELETYPE sy-vline 
WA_/SCWM/S_MFSDELAY_MON_STR-HUIDENT sy-vline 
WA_/SCWM/S_MFSDELAY_MON_STR-HUTYP sy-vline 
WA_/SCWM/S_MFSDELAY_MON_STR-STARTCHAR sy-vline 
WA_/SCWM/S_MFSDELAY_MON_STR-ENDCHAR sy-vline 
WA_/SCWM/S_MFSDELAY_MON_STR-SOURCE sy-vline 
WA_/SCWM/S_MFSDELAY_MON_STR-SLOGPOS sy-vline 
WA_/SCWM/S_MFSDELAY_MON_STR-DEST sy-vline 
WA_/SCWM/S_MFSDELAY_MON_STR-DLOGPOS sy-vline 
WA_/SCWM/S_MFSDELAY_MON_STR-MFS_ERROR sy-vline 
WA_/SCWM/S_MFSDELAY_MON_STR-CS sy-vline 
WA_/SCWM/S_MFSDELAY_MON_STR-CSGR sy-vline 
WA_/SCWM/S_MFSDELAY_MON_STR-RSRC sy-vline 
WA_/SCWM/S_MFSDELAY_MON_STR-HU_WEIGHT sy-vline 
WA_/SCWM/S_MFSDELAY_MON_STR-UNIT_HUW sy-vline 
WA_/SCWM/S_MFSDELAY_MON_STR-HU_VOLUME sy-vline 
WA_/SCWM/S_MFSDELAY_MON_STR-UNIT_HUV sy-vline 
WA_/SCWM/S_MFSDELAY_MON_STR-LENGTH sy-vline 
WA_/SCWM/S_MFSDELAY_MON_STR-WIDTH sy-vline 
WA_/SCWM/S_MFSDELAY_MON_STR-HEIGHT sy-vline 
WA_/SCWM/S_MFSDELAY_MON_STR-UNIT_D sy-vline 
WA_/SCWM/S_MFSDELAY_MON_STR-PLCOBJ sy-vline 
WA_/SCWM/S_MFSDELAY_MON_STR-FINAL_DEST sy-vline 
WA_/SCWM/S_MFSDELAY_MON_STR-DUMMY_TELE sy-vline      INTO ld_text SEPARATED BY SPACE.

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