ABAP Select data from SAP table CPES_PRCFIX_EXC_INTF_FIELDM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CPES_PRCFIX_EXC_INTF_FIELDM
*  INTO TABLE @DATA(IT_CPES_PRCFIX_EXC_INTF_FIELDM2).
*--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_CPES_PRCFIX_EXC_INTF_FIELDM INDEX 1 INTO DATA(WA_CPES_PRCFIX_EXC_INTF_FIELDM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CPES_PRCFIX_EXC_INTF_FIELDM>-KNUMV = 1.
<CPES_PRCFIX_EXC_INTF_FIELDM>-KPOSN = 1.
<CPES_PRCFIX_EXC_INTF_FIELDM>-COND_TYPE = 1.
<CPES_PRCFIX_EXC_INTF_FIELDM>-TERMNO = 1.
<CPES_PRCFIX_EXC_INTF_FIELDM>-FIXTERMNO = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CPES_PRCFIX_EXC_INTF_FIELDM-TERMCOMMQUAN, sy-vline,
  WA_CPES_PRCFIX_EXC_INTF_FIELDM-TERMCOMMUOM, sy-vline,
  WA_CPES_PRCFIX_EXC_INTF_FIELDM-EXERCISERATE_DF34, sy-vline,
  WA_CPES_PRCFIX_EXC_INTF_FIELDM-EXERCISECURR, sy-vline,
  WA_CPES_PRCFIX_EXC_INTF_FIELDM-EXERCISEPRUN, sy-vline,
  WA_CPES_PRCFIX_EXC_INTF_FIELDM-EXERCISEUOM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CPES_PRCFIX_EXC_INTF_FIELDM 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_CPES_PRCFIX_EXC_INTF_FIELDM 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_CPES_PRCFIX_EXC_INTF_FIELDM INTO WA_CPES_PRCFIX_EXC_INTF_FIELDM.


*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_CPES_PRCFIX_EXC_INTF_FIELDM_STR, 
KNUMV TYPE STRING,
KPOSN TYPE STRING,
COND_TYPE TYPE STRING,
TERMNO TYPE STRING,
FIXTERMNO TYPE STRING,
TERMCOMMQUAN TYPE STRING,
TERMCOMMUOM TYPE STRING,
EXERCISERATE_DF34 TYPE STRING,
EXERCISECURR TYPE STRING,
EXERCISEPRUN TYPE STRING,
EXERCISEUOM TYPE STRING,
EXCHRATE TYPE STRING,
TERMRATE TYPE STRING,
TERMCURR TYPE STRING,
FIXTERMRATE_DF34 TYPE STRING,
FIXTERMCURR TYPE STRING,
FIXTERMPRUN TYPE STRING,
FIXTERMUOM TYPE STRING,
FIXEXCHRATE TYPE STRING,
CURRFROM TYPE STRING,
CURRTO TYPE STRING,
DATEFROM_C TYPE STRING,
DATETO_C TYPE STRING,
DATEFROM_Q TYPE STRING,
DATETO_Q TYPE STRING,
DCSID TYPE STRING,
MIC TYPE STRING,
KEYDATE TYPE STRING,
DCS_SELECTION_TYPE TYPE STRING,
BASIS_ID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CPES_PRCFIX_EXC_INTF_FIELDM_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_CPES_PRCFIX_EXC_INTF_FIELDM_STR-KNUMV sy-vline 
WA_CPES_PRCFIX_EXC_INTF_FIELDM_STR-KPOSN sy-vline 
WA_CPES_PRCFIX_EXC_INTF_FIELDM_STR-COND_TYPE sy-vline 
WA_CPES_PRCFIX_EXC_INTF_FIELDM_STR-TERMNO sy-vline 
WA_CPES_PRCFIX_EXC_INTF_FIELDM_STR-FIXTERMNO sy-vline 
WA_CPES_PRCFIX_EXC_INTF_FIELDM_STR-TERMCOMMQUAN sy-vline 
WA_CPES_PRCFIX_EXC_INTF_FIELDM_STR-TERMCOMMUOM sy-vline 
WA_CPES_PRCFIX_EXC_INTF_FIELDM_STR-EXERCISERATE_DF34 sy-vline 
WA_CPES_PRCFIX_EXC_INTF_FIELDM_STR-EXERCISECURR sy-vline 
WA_CPES_PRCFIX_EXC_INTF_FIELDM_STR-EXERCISEPRUN sy-vline 
WA_CPES_PRCFIX_EXC_INTF_FIELDM_STR-EXERCISEUOM sy-vline 
WA_CPES_PRCFIX_EXC_INTF_FIELDM_STR-EXCHRATE sy-vline 
WA_CPES_PRCFIX_EXC_INTF_FIELDM_STR-TERMRATE sy-vline 
WA_CPES_PRCFIX_EXC_INTF_FIELDM_STR-TERMCURR sy-vline 
WA_CPES_PRCFIX_EXC_INTF_FIELDM_STR-FIXTERMRATE_DF34 sy-vline 
WA_CPES_PRCFIX_EXC_INTF_FIELDM_STR-FIXTERMCURR sy-vline 
WA_CPES_PRCFIX_EXC_INTF_FIELDM_STR-FIXTERMPRUN sy-vline 
WA_CPES_PRCFIX_EXC_INTF_FIELDM_STR-FIXTERMUOM sy-vline 
WA_CPES_PRCFIX_EXC_INTF_FIELDM_STR-FIXEXCHRATE sy-vline 
WA_CPES_PRCFIX_EXC_INTF_FIELDM_STR-CURRFROM sy-vline 
WA_CPES_PRCFIX_EXC_INTF_FIELDM_STR-CURRTO sy-vline 
WA_CPES_PRCFIX_EXC_INTF_FIELDM_STR-DATEFROM_C sy-vline 
WA_CPES_PRCFIX_EXC_INTF_FIELDM_STR-DATETO_C sy-vline 
WA_CPES_PRCFIX_EXC_INTF_FIELDM_STR-DATEFROM_Q sy-vline 
WA_CPES_PRCFIX_EXC_INTF_FIELDM_STR-DATETO_Q sy-vline 
WA_CPES_PRCFIX_EXC_INTF_FIELDM_STR-DCSID sy-vline 
WA_CPES_PRCFIX_EXC_INTF_FIELDM_STR-MIC sy-vline 
WA_CPES_PRCFIX_EXC_INTF_FIELDM_STR-KEYDATE sy-vline 
WA_CPES_PRCFIX_EXC_INTF_FIELDM_STR-DCS_SELECTION_TYPE sy-vline 
WA_CPES_PRCFIX_EXC_INTF_FIELDM_STR-BASIS_ID sy-vline      INTO ld_text SEPARATED BY SPACE.

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