ABAP Select data from SAP table CPES_TERM_PERIODDET_INTFX into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CPES_TERM_PERIODDET_INTFX 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_TERM_PERIODDET_INTFX. 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_TERM_PERIODDET_INTFX 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_TERM_PERIODDET_INTFX TYPE STANDARD TABLE OF CPES_TERM_PERIODDET_INTFX,
      WA_CPES_TERM_PERIODDET_INTFX TYPE CPES_TERM_PERIODDET_INTFX,
      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_TERM_PERIODDET_INTFX> TYPE CPES_TERM_PERIODDET_INTFX.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CPES_TERM_PERIODDET_INTFX
*  INTO TABLE @DATA(IT_CPES_TERM_PERIODDET_INTFX2).
*--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_TERM_PERIODDET_INTFX INDEX 1 INTO DATA(WA_CPES_TERM_PERIODDET_INTFX2).


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

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

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CPES_TERM_PERIODDET_INTFX-CPET_PERIOD_TYPE, sy-vline,
  WA_CPES_TERM_PERIODDET_INTFX-PERIODDETRULE, sy-vline,
  WA_CPES_TERM_PERIODDET_INTFX-PERIODDETROUT, sy-vline,
  WA_CPES_TERM_PERIODDET_INTFX-SOURCEROUT, sy-vline,
  WA_CPES_TERM_PERIODDET_INTFX-REFDATEROUT, sy-vline,
  WA_CPES_TERM_PERIODDET_INTFX-DATEOFFSETROUT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CPES_TERM_PERIODDET_INTFX 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_TERM_PERIODDET_INTFX 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_TERM_PERIODDET_INTFX INTO WA_CPES_TERM_PERIODDET_INTFX.


*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_TERM_PERIODDET_INTFX_STR, 
KNUMV TYPE STRING,
KPOSN TYPE STRING,
COND_TYPE TYPE STRING,
TERM_SEQNO TYPE STRING,
TERMNO TYPE STRING,
CPET_PERIOD_TYPE TYPE STRING,
PERIODDETRULE TYPE STRING,
PERIODDETROUT TYPE STRING,
SOURCEROUT TYPE STRING,
REFDATEROUT TYPE STRING,
DATEOFFSETROUT TYPE STRING,
OFFSETUNITS TYPE STRING,
TIMEUOMROUT TYPE STRING,
TIMEUNITSBEF TYPE STRING,
TIMEUNITSAFT TYPE STRING,
EXCL_BASEDATE TYPE STRING,
DATEFROM TYPE STRING,
TIMEFROM TYPE STRING,
DATETO TYPE STRING,
TIMETO TYPE STRING,
DATELISTROUT TYPE STRING,
PERDETCALID TYPE STRING,
MISSENTRYROUT TYPE STRING,
CLOSEDDAYSROUT TYPE STRING,
MAXWEIGHTING TYPE STRING,
UPDATEFLAG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CPES_TERM_PERIODDET_INTFX_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_TERM_PERIODDET_INTFX_STR-KNUMV sy-vline 
WA_CPES_TERM_PERIODDET_INTFX_STR-KPOSN sy-vline 
WA_CPES_TERM_PERIODDET_INTFX_STR-COND_TYPE sy-vline 
WA_CPES_TERM_PERIODDET_INTFX_STR-TERM_SEQNO sy-vline 
WA_CPES_TERM_PERIODDET_INTFX_STR-TERMNO sy-vline 
WA_CPES_TERM_PERIODDET_INTFX_STR-CPET_PERIOD_TYPE sy-vline 
WA_CPES_TERM_PERIODDET_INTFX_STR-PERIODDETRULE sy-vline 
WA_CPES_TERM_PERIODDET_INTFX_STR-PERIODDETROUT sy-vline 
WA_CPES_TERM_PERIODDET_INTFX_STR-SOURCEROUT sy-vline 
WA_CPES_TERM_PERIODDET_INTFX_STR-REFDATEROUT sy-vline 
WA_CPES_TERM_PERIODDET_INTFX_STR-DATEOFFSETROUT sy-vline 
WA_CPES_TERM_PERIODDET_INTFX_STR-OFFSETUNITS sy-vline 
WA_CPES_TERM_PERIODDET_INTFX_STR-TIMEUOMROUT sy-vline 
WA_CPES_TERM_PERIODDET_INTFX_STR-TIMEUNITSBEF sy-vline 
WA_CPES_TERM_PERIODDET_INTFX_STR-TIMEUNITSAFT sy-vline 
WA_CPES_TERM_PERIODDET_INTFX_STR-EXCL_BASEDATE sy-vline 
WA_CPES_TERM_PERIODDET_INTFX_STR-DATEFROM sy-vline 
WA_CPES_TERM_PERIODDET_INTFX_STR-TIMEFROM sy-vline 
WA_CPES_TERM_PERIODDET_INTFX_STR-DATETO sy-vline 
WA_CPES_TERM_PERIODDET_INTFX_STR-TIMETO sy-vline 
WA_CPES_TERM_PERIODDET_INTFX_STR-DATELISTROUT sy-vline 
WA_CPES_TERM_PERIODDET_INTFX_STR-PERDETCALID sy-vline 
WA_CPES_TERM_PERIODDET_INTFX_STR-MISSENTRYROUT sy-vline 
WA_CPES_TERM_PERIODDET_INTFX_STR-CLOSEDDAYSROUT sy-vline 
WA_CPES_TERM_PERIODDET_INTFX_STR-MAXWEIGHTING sy-vline 
WA_CPES_TERM_PERIODDET_INTFX_STR-UPDATEFLAG sy-vline      INTO ld_text SEPARATED BY SPACE.

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