ABAP Select data from SAP table /TDAG/CPC_IMFO into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /TDAG/CPC_IMFO
*  INTO TABLE @DATA(IT_/TDAG/CPC_IMFO2).
*--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_/TDAG/CPC_IMFO INDEX 1 INTO DATA(WA_/TDAG/CPC_IMFO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</TDAG/CPC_IMFO>-MANDT = 1.
</TDAG/CPC_IMFO>-IMPTYP = 1.
</TDAG/CPC_IMFO>-SRSID = 1.
</TDAG/CPC_IMFO>-PREPROCESS = 1.
</TDAG/CPC_IMFO>-PROCESS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/TDAG/CPC_IMFO-MAP_AND_SAVE, sy-vline,
  WA_/TDAG/CPC_IMFO-POSTPROCESS, sy-vline,
  WA_/TDAG/CPC_IMFO-IDENTFUNCTION, sy-vline,
  WA_/TDAG/CPC_IMFO-DATFM, sy-vline,
  WA_/TDAG/CPC_IMFO-DCPFM, sy-vline,
  WA_/TDAG/CPC_IMFO-MATABORT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/TDAG/CPC_IMFO 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_/TDAG/CPC_IMFO 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_/TDAG/CPC_IMFO INTO WA_/TDAG/CPC_IMFO.


*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 CHRID, internal->external for field DVS_GENVAR
CALL FUNCTION 'CONVERSION_EXIT_CHRID_OUTPUT'
  EXPORTING
    input =                      WA_/TDAG/CPC_IMFO-DVS_GENVAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/TDAG/CPC_IMFO-DVS_GENVAR.
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_/TDAG/CPC_IMFO_STR, 
MANDT TYPE STRING,
IMPTYP TYPE STRING,
SRSID TYPE STRING,
PREPROCESS TYPE STRING,
PROCESS TYPE STRING,
MAP_AND_SAVE TYPE STRING,
POSTPROCESS TYPE STRING,
IDENTFUNCTION TYPE STRING,
DATFM TYPE STRING,
DCPFM TYPE STRING,
MATABORT TYPE STRING,
SUPABORT TYPE STRING,
FLG_DVS TYPE STRING,
DVS_GENVAR TYPE STRING,
DOCTYP TYPE STRING,
DAPPL TYPE STRING,
EHSDOKAR TYPE STRING,
NOCHECKS TYPE STRING,
CHECKREASON TYPE STRING,
DEF_DECLTYPE TYPE STRING,
VIEWER TYPE STRING,
SOURCETAB TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/TDAG/CPC_IMFO_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_/TDAG/CPC_IMFO_STR-MANDT sy-vline 
WA_/TDAG/CPC_IMFO_STR-IMPTYP sy-vline 
WA_/TDAG/CPC_IMFO_STR-SRSID sy-vline 
WA_/TDAG/CPC_IMFO_STR-PREPROCESS sy-vline 
WA_/TDAG/CPC_IMFO_STR-PROCESS sy-vline 
WA_/TDAG/CPC_IMFO_STR-MAP_AND_SAVE sy-vline 
WA_/TDAG/CPC_IMFO_STR-POSTPROCESS sy-vline 
WA_/TDAG/CPC_IMFO_STR-IDENTFUNCTION sy-vline 
WA_/TDAG/CPC_IMFO_STR-DATFM sy-vline 
WA_/TDAG/CPC_IMFO_STR-DCPFM sy-vline 
WA_/TDAG/CPC_IMFO_STR-MATABORT sy-vline 
WA_/TDAG/CPC_IMFO_STR-SUPABORT sy-vline 
WA_/TDAG/CPC_IMFO_STR-FLG_DVS sy-vline 
WA_/TDAG/CPC_IMFO_STR-DVS_GENVAR sy-vline 
WA_/TDAG/CPC_IMFO_STR-DOCTYP sy-vline 
WA_/TDAG/CPC_IMFO_STR-DAPPL sy-vline 
WA_/TDAG/CPC_IMFO_STR-EHSDOKAR sy-vline 
WA_/TDAG/CPC_IMFO_STR-NOCHECKS sy-vline 
WA_/TDAG/CPC_IMFO_STR-CHECKREASON sy-vline 
WA_/TDAG/CPC_IMFO_STR-DEF_DECLTYPE sy-vline 
WA_/TDAG/CPC_IMFO_STR-VIEWER sy-vline 
WA_/TDAG/CPC_IMFO_STR-SOURCETAB sy-vline      INTO ld_text SEPARATED BY SPACE.

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