ABAP Select data from SAP table CRMS_BAPIBOMSTK into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CRMS_BAPIBOMSTK
*  INTO TABLE @DATA(IT_CRMS_BAPIBOMSTK2).
*--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_CRMS_BAPIBOMSTK INDEX 1 INTO DATA(WA_CRMS_BAPIBOMSTK2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CRMS_BAPIBOMSTK>-OPERATION = 1.
<CRMS_BAPIBOMSTK>-BOM_CATEGO = 1.
<CRMS_BAPIBOMSTK>-NBR_ST = 1.
<CRMS_BAPIBOMSTK>-ALT_BOM = 1.
<CRMS_BAPIBOMSTK>-BOM_NO = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CRMS_BAPIBOMSTK-VALID_FROM, sy-vline,
  WA_CRMS_BAPIBOMSTK-TECHSTATUS, sy-vline,
  WA_CRMS_BAPIBOMSTK-CHANGE_NO, sy-vline,
  WA_CRMS_BAPIBOMSTK-DEL_IND, sy-vline,
  WA_CRMS_BAPIBOMSTK-DEL_FLAG, sy-vline,
  WA_CRMS_BAPIBOMSTK-PREV_NO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CRMS_BAPIBOMSTK 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_CRMS_BAPIBOMSTK 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_CRMS_BAPIBOMSTK INTO WA_CRMS_BAPIBOMSTK.


*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 NUMCV, internal->external for field NBR_ST
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_CRMS_BAPIBOMSTK-NBR_ST
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMS_BAPIBOMSTK-NBR_ST.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit ISOLA, internal->external for field LTXLAN
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_CRMS_BAPIBOMSTK-LTXLAN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMS_BAPIBOMSTK-LTXLAN.
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_CRMS_BAPIBOMSTK_STR, 
OPERATION TYPE STRING,
BOM_CATEGO TYPE STRING,
NBR_ST TYPE STRING,
ALT_BOM TYPE STRING,
BOM_NO TYPE STRING,
VALID_FROM TYPE STRING,
TECHSTATUS TYPE STRING,
CHANGE_NO TYPE STRING,
DEL_IND TYPE STRING,
DEL_FLAG TYPE STRING,
PREV_NO TYPE STRING,
CREATE_DAT TYPE STRING,
CREATOR TYPE STRING,
CH_ON TYPE STRING,
CHANGED_BY TYPE STRING,
UNBASE TYPE STRING,
UNBASE_ISO TYPE STRING,
BASE_QTY TYPE STRING,
CAD_ID TYPE STRING,
DSN_OFFICE TYPE STRING,
LTXLAN TYPE STRING,
LTXLAN_ISO TYPE STRING,
ALT_TXT TYPE STRING,
BOM_STATUS TYPE STRING,
CR_IN_PLNT TYPE STRING,
SCHED_ON TYPE STRING,
SCHED_BY TYPE STRING,
SCHED_HLPF TYPE STRING,
ALE_IND TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CRMS_BAPIBOMSTK_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_CRMS_BAPIBOMSTK_STR-OPERATION sy-vline 
WA_CRMS_BAPIBOMSTK_STR-BOM_CATEGO sy-vline 
WA_CRMS_BAPIBOMSTK_STR-NBR_ST sy-vline 
WA_CRMS_BAPIBOMSTK_STR-ALT_BOM sy-vline 
WA_CRMS_BAPIBOMSTK_STR-BOM_NO sy-vline 
WA_CRMS_BAPIBOMSTK_STR-VALID_FROM sy-vline 
WA_CRMS_BAPIBOMSTK_STR-TECHSTATUS sy-vline 
WA_CRMS_BAPIBOMSTK_STR-CHANGE_NO sy-vline 
WA_CRMS_BAPIBOMSTK_STR-DEL_IND sy-vline 
WA_CRMS_BAPIBOMSTK_STR-DEL_FLAG sy-vline 
WA_CRMS_BAPIBOMSTK_STR-PREV_NO sy-vline 
WA_CRMS_BAPIBOMSTK_STR-CREATE_DAT sy-vline 
WA_CRMS_BAPIBOMSTK_STR-CREATOR sy-vline 
WA_CRMS_BAPIBOMSTK_STR-CH_ON sy-vline 
WA_CRMS_BAPIBOMSTK_STR-CHANGED_BY sy-vline 
WA_CRMS_BAPIBOMSTK_STR-UNBASE sy-vline 
WA_CRMS_BAPIBOMSTK_STR-UNBASE_ISO sy-vline 
WA_CRMS_BAPIBOMSTK_STR-BASE_QTY sy-vline 
WA_CRMS_BAPIBOMSTK_STR-CAD_ID sy-vline 
WA_CRMS_BAPIBOMSTK_STR-DSN_OFFICE sy-vline 
WA_CRMS_BAPIBOMSTK_STR-LTXLAN sy-vline 
WA_CRMS_BAPIBOMSTK_STR-LTXLAN_ISO sy-vline 
WA_CRMS_BAPIBOMSTK_STR-ALT_TXT sy-vline 
WA_CRMS_BAPIBOMSTK_STR-BOM_STATUS sy-vline 
WA_CRMS_BAPIBOMSTK_STR-CR_IN_PLNT sy-vline 
WA_CRMS_BAPIBOMSTK_STR-SCHED_ON sy-vline 
WA_CRMS_BAPIBOMSTK_STR-SCHED_BY sy-vline 
WA_CRMS_BAPIBOMSTK_STR-SCHED_HLPF sy-vline 
WA_CRMS_BAPIBOMSTK_STR-ALE_IND sy-vline      INTO ld_text SEPARATED BY SPACE.

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