ABAP Select data from SAP table TMDCHGPROCVAL_W into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TMDCHGPROCVAL_W
*  INTO TABLE @DATA(IT_TMDCHGPROCVAL_W2).
*--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_TMDCHGPROCVAL_W INDEX 1 INTO DATA(WA_TMDCHGPROCVAL_W2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TMDCHGPROCVAL_W>-MANDT = 1.
<TMDCHGPROCVAL_W>-MDCHGPROCVALDTNUUID = 1.
<TMDCHGPROCVAL_W>-MDCHGPROCCONFIGNUUID = 1.
<TMDCHGPROCVAL_W>-MDCHGPROCVALDTNCONFIGN = 1.
<TMDCHGPROCVAL_W>-MDCHGPROCVALDTNISMDGOVCHKRQD = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TMDCHGPROCVAL_W-MDCHGPROCVALDTNISBRFPLUSCHKRQD, sy-vline,
  WA_TMDCHGPROCVAL_W-MDCHGPROCVALDTNTHLD, sy-vline,
  WA_TMDCHGPROCVAL_W-MDCHGPROCVALDTNISMDQLTYWLRQD, sy-vline,
  WA_TMDCHGPROCVAL_W-MDCHGPROCVALDTNISREMOVERECDRQD, sy-vline,
  WA_TMDCHGPROCVAL_W-MDCHGPROCQLTYRULECHKISRQD, sy-vline,
  WA_TMDCHGPROCVAL_W-MDCHGPROCNMBROFOBJECTS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TMDCHGPROCVAL_W 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_TMDCHGPROCVAL_W 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_TMDCHGPROCVAL_W INTO WA_TMDCHGPROCVAL_W.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_TMDCHGPROCVAL_W_STR, 
MANDT TYPE STRING,
MDCHGPROCVALDTNUUID TYPE STRING,
MDCHGPROCCONFIGNUUID TYPE STRING,
MDCHGPROCVALDTNCONFIGN TYPE STRING,
MDCHGPROCVALDTNISMDGOVCHKRQD TYPE STRING,
MDCHGPROCVALDTNISBRFPLUSCHKRQD TYPE STRING,
MDCHGPROCVALDTNTHLD TYPE STRING,
MDCHGPROCVALDTNISMDQLTYWLRQD TYPE STRING,
MDCHGPROCVALDTNISREMOVERECDRQD TYPE STRING,
MDCHGPROCQLTYRULECHKISRQD TYPE STRING,
MDCHGPROCNMBROFOBJECTS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TMDCHGPROCVAL_W_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_TMDCHGPROCVAL_W_STR-MANDT sy-vline 
WA_TMDCHGPROCVAL_W_STR-MDCHGPROCVALDTNUUID sy-vline 
WA_TMDCHGPROCVAL_W_STR-MDCHGPROCCONFIGNUUID sy-vline 
WA_TMDCHGPROCVAL_W_STR-MDCHGPROCVALDTNCONFIGN sy-vline 
WA_TMDCHGPROCVAL_W_STR-MDCHGPROCVALDTNISMDGOVCHKRQD sy-vline 
WA_TMDCHGPROCVAL_W_STR-MDCHGPROCVALDTNISBRFPLUSCHKRQD sy-vline 
WA_TMDCHGPROCVAL_W_STR-MDCHGPROCVALDTNTHLD sy-vline 
WA_TMDCHGPROCVAL_W_STR-MDCHGPROCVALDTNISMDQLTYWLRQD sy-vline 
WA_TMDCHGPROCVAL_W_STR-MDCHGPROCVALDTNISREMOVERECDRQD sy-vline 
WA_TMDCHGPROCVAL_W_STR-MDCHGPROCQLTYRULECHKISRQD sy-vline 
WA_TMDCHGPROCVAL_W_STR-MDCHGPROCNMBROFOBJECTS sy-vline      INTO ld_text SEPARATED BY SPACE.

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