ABAP Select data from SAP table BAPIMEDCM_ALLVERSIONS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BAPIMEDCM_ALLVERSIONS
*  INTO TABLE @DATA(IT_BAPIMEDCM_ALLVERSIONS2).
*--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_BAPIMEDCM_ALLVERSIONS INDEX 1 INTO DATA(WA_BAPIMEDCM_ALLVERSIONS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BAPIMEDCM_ALLVERSIONS>-DOC_TYPE = 1.
<BAPIMEDCM_ALLVERSIONS>-DOC_NUMBER = 1.
<BAPIMEDCM_ALLVERSIONS>-ITEM_NUMBER = 1.
<BAPIMEDCM_ALLVERSIONS>-VERSION = 1.
<BAPIMEDCM_ALLVERSIONS>-CREATED_BY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BAPIMEDCM_ALLVERSIONS-CR_ON, sy-vline,
  WA_BAPIMEDCM_ALLVERSIONS-REC_TIME, sy-vline,
  WA_BAPIMEDCM_ALLVERSIONS-RELEASED_BY, sy-vline,
  WA_BAPIMEDCM_ALLVERSIONS-RELEASE_DATE, sy-vline,
  WA_BAPIMEDCM_ALLVERSIONS-RELEASE_TIME, sy-vline,
  WA_BAPIMEDCM_ALLVERSIONS-RELEASEBY_PUR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BAPIMEDCM_ALLVERSIONS 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_BAPIMEDCM_ALLVERSIONS 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_BAPIMEDCM_ALLVERSIONS INTO WA_BAPIMEDCM_ALLVERSIONS.


*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 ALPHA, internal->external for field DOC_NUMBER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BAPIMEDCM_ALLVERSIONS-DOC_NUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPIMEDCM_ALLVERSIONS-DOC_NUMBER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VERSION
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BAPIMEDCM_ALLVERSIONS-VERSION
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPIMEDCM_ALLVERSIONS-VERSION.
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_BAPIMEDCM_ALLVERSIONS_STR, 
DOC_TYPE TYPE STRING,
DOC_NUMBER TYPE STRING,
ITEM_NUMBER TYPE STRING,
VERSION TYPE STRING,
CREATED_BY TYPE STRING,
CR_ON TYPE STRING,
REC_TIME TYPE STRING,
RELEASED_BY TYPE STRING,
RELEASE_DATE TYPE STRING,
RELEASE_TIME TYPE STRING,
RELEASEBY_PUR TYPE STRING,
RELEASEDATE_PUR TYPE STRING,
RELEASETIME_PUR TYPE STRING,
REASON TYPE STRING,
DESCRIPTION TYPE STRING,
REQ_BY_EXT TYPE STRING,
REQ_BY TYPE STRING,
NET_VALUE TYPE STRING,
VALUE_CHANGED TYPE STRING,
CURRENCY TYPE STRING,
CURRENCY_ISO TYPE STRING,
POST_DATE TYPE STRING,
COMPLETED TYPE STRING,
STATUS TYPE STRING,
DELETE_IND TYPE STRING,
STATUS_DOC_OLD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BAPIMEDCM_ALLVERSIONS_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_BAPIMEDCM_ALLVERSIONS_STR-DOC_TYPE sy-vline 
WA_BAPIMEDCM_ALLVERSIONS_STR-DOC_NUMBER sy-vline 
WA_BAPIMEDCM_ALLVERSIONS_STR-ITEM_NUMBER sy-vline 
WA_BAPIMEDCM_ALLVERSIONS_STR-VERSION sy-vline 
WA_BAPIMEDCM_ALLVERSIONS_STR-CREATED_BY sy-vline 
WA_BAPIMEDCM_ALLVERSIONS_STR-CR_ON sy-vline 
WA_BAPIMEDCM_ALLVERSIONS_STR-REC_TIME sy-vline 
WA_BAPIMEDCM_ALLVERSIONS_STR-RELEASED_BY sy-vline 
WA_BAPIMEDCM_ALLVERSIONS_STR-RELEASE_DATE sy-vline 
WA_BAPIMEDCM_ALLVERSIONS_STR-RELEASE_TIME sy-vline 
WA_BAPIMEDCM_ALLVERSIONS_STR-RELEASEBY_PUR sy-vline 
WA_BAPIMEDCM_ALLVERSIONS_STR-RELEASEDATE_PUR sy-vline 
WA_BAPIMEDCM_ALLVERSIONS_STR-RELEASETIME_PUR sy-vline 
WA_BAPIMEDCM_ALLVERSIONS_STR-REASON sy-vline 
WA_BAPIMEDCM_ALLVERSIONS_STR-DESCRIPTION sy-vline 
WA_BAPIMEDCM_ALLVERSIONS_STR-REQ_BY_EXT sy-vline 
WA_BAPIMEDCM_ALLVERSIONS_STR-REQ_BY sy-vline 
WA_BAPIMEDCM_ALLVERSIONS_STR-NET_VALUE sy-vline 
WA_BAPIMEDCM_ALLVERSIONS_STR-VALUE_CHANGED sy-vline 
WA_BAPIMEDCM_ALLVERSIONS_STR-CURRENCY sy-vline 
WA_BAPIMEDCM_ALLVERSIONS_STR-CURRENCY_ISO sy-vline 
WA_BAPIMEDCM_ALLVERSIONS_STR-POST_DATE sy-vline 
WA_BAPIMEDCM_ALLVERSIONS_STR-COMPLETED sy-vline 
WA_BAPIMEDCM_ALLVERSIONS_STR-STATUS sy-vline 
WA_BAPIMEDCM_ALLVERSIONS_STR-DELETE_IND sy-vline 
WA_BAPIMEDCM_ALLVERSIONS_STR-STATUS_DOC_OLD sy-vline      INTO ld_text SEPARATED BY SPACE.

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