ABAP Select data from SAP table APO_BAPIORDCHAR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM APO_BAPIORDCHAR
*  INTO TABLE @DATA(IT_APO_BAPIORDCHAR2).
*--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_APO_BAPIORDCHAR INDEX 1 INTO DATA(WA_APO_BAPIORDCHAR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<APO_BAPIORDCHAR>-ORDID = 1.
<APO_BAPIORDCHAR>-ORDID22 = 1.
<APO_BAPIORDCHAR>-ITEM_NUMBER = 1.
<APO_BAPIORDCHAR>-SCHED_LINE = 1.
<APO_BAPIORDCHAR>-ACTID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_APO_BAPIORDCHAR-ACTID22, sy-vline,
  WA_APO_BAPIORDCHAR-ACTIVITY, sy-vline,
  WA_APO_BAPIORDCHAR-OPERATION_COUNTER, sy-vline,
  WA_APO_BAPIORDCHAR-CLASS_NAME, sy-vline,
  WA_APO_BAPIORDCHAR-CHAR_NAME, sy-vline,
  WA_APO_BAPIORDCHAR-FLG_QFIELD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_APO_BAPIORDCHAR 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_APO_BAPIORDCHAR 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_APO_BAPIORDCHAR INTO WA_APO_BAPIORDCHAR.


*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 NUM_UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_APO_BAPIORDCHAR-NUM_UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_APO_BAPIORDCHAR-NUM_UNIT.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit TSTPS, internal->external for field DATE_VALID_TO
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_APO_BAPIORDCHAR-DATE_VALID_TO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_APO_BAPIORDCHAR-DATE_VALID_TO.
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_APO_BAPIORDCHAR_STR, 
ORDID TYPE STRING,
ORDID22 TYPE STRING,
ITEM_NUMBER TYPE STRING,
SCHED_LINE TYPE STRING,
ACTID TYPE STRING,
ACTID22 TYPE STRING,
ACTIVITY TYPE STRING,
OPERATION_COUNTER TYPE STRING,
CLASS_NAME TYPE STRING,
CHAR_NAME TYPE STRING,
FLG_QFIELD TYPE STRING,
CHAR_VALUE TYPE STRING,
CHAR_VALUE_TO TYPE STRING,
VALUE_CODE TYPE STRING,
NUM_VALUE TYPE STRING,
NUM_UNIT TYPE STRING,
NUM_UNIT_ISO TYPE STRING,
NUM_VALUE_TO TYPE STRING,
NUM_UNIT_TO TYPE STRING,
NUM_UNIT_TO_ISO TYPE STRING,
DATE_VALID_TO TYPE STRING,
CHAR_VALUE_LONG TYPE STRING,
CHAR_VALUE_TO_LONG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_APO_BAPIORDCHAR_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_APO_BAPIORDCHAR_STR-ORDID sy-vline 
WA_APO_BAPIORDCHAR_STR-ORDID22 sy-vline 
WA_APO_BAPIORDCHAR_STR-ITEM_NUMBER sy-vline 
WA_APO_BAPIORDCHAR_STR-SCHED_LINE sy-vline 
WA_APO_BAPIORDCHAR_STR-ACTID sy-vline 
WA_APO_BAPIORDCHAR_STR-ACTID22 sy-vline 
WA_APO_BAPIORDCHAR_STR-ACTIVITY sy-vline 
WA_APO_BAPIORDCHAR_STR-OPERATION_COUNTER sy-vline 
WA_APO_BAPIORDCHAR_STR-CLASS_NAME sy-vline 
WA_APO_BAPIORDCHAR_STR-CHAR_NAME sy-vline 
WA_APO_BAPIORDCHAR_STR-FLG_QFIELD sy-vline 
WA_APO_BAPIORDCHAR_STR-CHAR_VALUE sy-vline 
WA_APO_BAPIORDCHAR_STR-CHAR_VALUE_TO sy-vline 
WA_APO_BAPIORDCHAR_STR-VALUE_CODE sy-vline 
WA_APO_BAPIORDCHAR_STR-NUM_VALUE sy-vline 
WA_APO_BAPIORDCHAR_STR-NUM_UNIT sy-vline 
WA_APO_BAPIORDCHAR_STR-NUM_UNIT_ISO sy-vline 
WA_APO_BAPIORDCHAR_STR-NUM_VALUE_TO sy-vline 
WA_APO_BAPIORDCHAR_STR-NUM_UNIT_TO sy-vline 
WA_APO_BAPIORDCHAR_STR-NUM_UNIT_TO_ISO sy-vline 
WA_APO_BAPIORDCHAR_STR-DATE_VALID_TO sy-vline 
WA_APO_BAPIORDCHAR_STR-CHAR_VALUE_LONG sy-vline 
WA_APO_BAPIORDCHAR_STR-CHAR_VALUE_TO_LONG sy-vline      INTO ld_text SEPARATED BY SPACE.

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