ABAP Select data from SAP table CPET_ERP_CPEDOC_COM_OUT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CPET_ERP_CPEDOC_COM_OUT
*  INTO TABLE @DATA(IT_CPET_ERP_CPEDOC_COM_OUT2).
*--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_CPET_ERP_CPEDOC_COM_OUT INDEX 1 INTO DATA(WA_CPET_ERP_CPEDOC_COM_OUT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CPET_ERP_CPEDOC_COM_OUT>-KNUMV = 1.
<CPET_ERP_CPEDOC_COM_OUT>-KPOSN = 1.
<CPET_ERP_CPEDOC_COM_OUT>-KSCHL = 1.
<CPET_ERP_CPEDOC_COM_OUT>-FORMID = 1.
<CPET_ERP_CPEDOC_COM_OUT>-FORMCOMMQUAN = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CPET_ERP_CPEDOC_COM_OUT-FORMCOMMUOM, sy-vline,
  WA_CPET_ERP_CPEDOC_COM_OUT-FORMSTATUS, sy-vline,
  WA_CPET_ERP_CPEDOC_COM_OUT-FORMRATE, sy-vline,
  WA_CPET_ERP_CPEDOC_COM_OUT-FORMCURR, sy-vline,
  WA_CPET_ERP_CPEDOC_COM_OUT-FORMPRUN, sy-vline,
  WA_CPET_ERP_CPEDOC_COM_OUT-FORMUOM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CPET_ERP_CPEDOC_COM_OUT 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_CPET_ERP_CPEDOC_COM_OUT 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_CPET_ERP_CPEDOC_COM_OUT INTO WA_CPET_ERP_CPEDOC_COM_OUT.


*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 CUNIT, internal->external for field FORMCOMMUOM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CPET_ERP_CPEDOC_COM_OUT-FORMCOMMUOM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CPET_ERP_CPEDOC_COM_OUT-FORMCOMMUOM.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit TSTPS, internal->external for field USED_EVAL_KEYDATE
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_CPET_ERP_CPEDOC_COM_OUT-USED_EVAL_KEYDATE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CPET_ERP_CPEDOC_COM_OUT-USED_EVAL_KEYDATE.
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_CPET_ERP_CPEDOC_COM_OUT_STR, 
KNUMV TYPE STRING,
KPOSN TYPE STRING,
KSCHL TYPE STRING,
FORMID TYPE STRING,
FORMCOMMQUAN TYPE STRING,
FORMCOMMUOM TYPE STRING,
FORMSTATUS TYPE STRING,
FORMRATE TYPE STRING,
FORMCURR TYPE STRING,
FORMPRUN TYPE STRING,
FORMUOM TYPE STRING,
FIXFORMRATE TYPE STRING,
FIXFORMRATE_DF34 TYPE STRING,
FIXFORMCURR TYPE STRING,
FIXFORMPRUN TYPE STRING,
FIXFORMUOM TYPE STRING,
FIXFORMCOMMQUAN TYPE STRING,
FIXFORMCOMMUOM TYPE STRING,
USED_EVAL_KEYDATE TYPE STRING,
TERM TYPE STRING,
EXTENSION TYPE STRING,
FORMRATE_DF34 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CPET_ERP_CPEDOC_COM_OUT_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_CPET_ERP_CPEDOC_COM_OUT_STR-KNUMV sy-vline 
WA_CPET_ERP_CPEDOC_COM_OUT_STR-KPOSN sy-vline 
WA_CPET_ERP_CPEDOC_COM_OUT_STR-KSCHL sy-vline 
WA_CPET_ERP_CPEDOC_COM_OUT_STR-FORMID sy-vline 
WA_CPET_ERP_CPEDOC_COM_OUT_STR-FORMCOMMQUAN sy-vline 
WA_CPET_ERP_CPEDOC_COM_OUT_STR-FORMCOMMUOM sy-vline 
WA_CPET_ERP_CPEDOC_COM_OUT_STR-FORMSTATUS sy-vline 
WA_CPET_ERP_CPEDOC_COM_OUT_STR-FORMRATE sy-vline 
WA_CPET_ERP_CPEDOC_COM_OUT_STR-FORMCURR sy-vline 
WA_CPET_ERP_CPEDOC_COM_OUT_STR-FORMPRUN sy-vline 
WA_CPET_ERP_CPEDOC_COM_OUT_STR-FORMUOM sy-vline 
WA_CPET_ERP_CPEDOC_COM_OUT_STR-FIXFORMRATE sy-vline 
WA_CPET_ERP_CPEDOC_COM_OUT_STR-FIXFORMRATE_DF34 sy-vline 
WA_CPET_ERP_CPEDOC_COM_OUT_STR-FIXFORMCURR sy-vline 
WA_CPET_ERP_CPEDOC_COM_OUT_STR-FIXFORMPRUN sy-vline 
WA_CPET_ERP_CPEDOC_COM_OUT_STR-FIXFORMUOM sy-vline 
WA_CPET_ERP_CPEDOC_COM_OUT_STR-FIXFORMCOMMQUAN sy-vline 
WA_CPET_ERP_CPEDOC_COM_OUT_STR-FIXFORMCOMMUOM sy-vline 
WA_CPET_ERP_CPEDOC_COM_OUT_STR-USED_EVAL_KEYDATE sy-vline 
WA_CPET_ERP_CPEDOC_COM_OUT_STR-TERM sy-vline 
WA_CPET_ERP_CPEDOC_COM_OUT_STR-EXTENSION sy-vline 
WA_CPET_ERP_CPEDOC_COM_OUT_STR-FORMRATE_DF34 sy-vline      INTO ld_text SEPARATED BY SPACE.

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