ABAP Select data from SAP table BAPICOLL_STOCK into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BAPICOLL_STOCK
*  INTO TABLE @DATA(IT_BAPICOLL_STOCK2).
*--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_BAPICOLL_STOCK INDEX 1 INTO DATA(WA_BAPICOLL_STOCK2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BAPICOLL_STOCK>-COMP_CODE = 1.
<BAPICOLL_STOCK>-CONTRACT_NO = 1.
<BAPICOLL_STOCK>-CLIENT = 1.
<BAPICOLL_STOCK>-INT_NO = 1.
<BAPICOLL_STOCK>-COLLAT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BAPICOLL_STOCK-COLLATCAT, sy-vline,
  WA_BAPICOLL_STOCK-ID_NO, sy-vline,
  WA_BAPICOLL_STOCK-CURRENCY, sy-vline,
  WA_BAPICOLL_STOCK-CURRENCY_ISO, sy-vline,
  WA_BAPICOLL_STOCK-DATE_VAL, sy-vline,
  WA_BAPICOLL_STOCK-NOM_VAL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BAPICOLL_STOCK 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_BAPICOLL_STOCK 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_BAPICOLL_STOCK INTO WA_BAPICOLL_STOCK.


*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 CONTRACT_NO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BAPICOLL_STOCK-CONTRACT_NO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPICOLL_STOCK-CONTRACT_NO.
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_BAPICOLL_STOCK_STR, 
COMP_CODE TYPE STRING,
CONTRACT_NO TYPE STRING,
CLIENT TYPE STRING,
INT_NO TYPE STRING,
COLLAT TYPE STRING,
COLLATCAT TYPE STRING,
ID_NO TYPE STRING,
CURRENCY TYPE STRING,
CURRENCY_ISO TYPE STRING,
DATE_VAL TYPE STRING,
NOM_VAL TYPE STRING,
SEC_PRICE TYPE STRING,
PRICE_PER TYPE STRING,
NUMBER_OF_UNITS TYPE STRING,
NOM_VALUE TYPE STRING,
SHORT_TEXT TYPE STRING,
LONG_TEXT TYPE STRING,
ISSUER TYPE STRING,
NOMINTRTE TYPE STRING,
ISSUE_START TYPE STRING,
SERIES TYPE STRING,
SERIES_ROW TYPE STRING,
CUST_TYPE TYPE STRING,
SECACCSHRT TYPE STRING,
TERM_START TYPE STRING,
FINAL_DUE_DATE TYPE STRING,
NAME_1 TYPE STRING,
NAME_2 TYPE STRING,
SEC_ACCT TYPE STRING,
DOCUM_ON TYPE STRING,
COUNTRY TYPE STRING,
COUNTRY_ISO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BAPICOLL_STOCK_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_BAPICOLL_STOCK_STR-COMP_CODE sy-vline 
WA_BAPICOLL_STOCK_STR-CONTRACT_NO sy-vline 
WA_BAPICOLL_STOCK_STR-CLIENT sy-vline 
WA_BAPICOLL_STOCK_STR-INT_NO sy-vline 
WA_BAPICOLL_STOCK_STR-COLLAT sy-vline 
WA_BAPICOLL_STOCK_STR-COLLATCAT sy-vline 
WA_BAPICOLL_STOCK_STR-ID_NO sy-vline 
WA_BAPICOLL_STOCK_STR-CURRENCY sy-vline 
WA_BAPICOLL_STOCK_STR-CURRENCY_ISO sy-vline 
WA_BAPICOLL_STOCK_STR-DATE_VAL sy-vline 
WA_BAPICOLL_STOCK_STR-NOM_VAL sy-vline 
WA_BAPICOLL_STOCK_STR-SEC_PRICE sy-vline 
WA_BAPICOLL_STOCK_STR-PRICE_PER sy-vline 
WA_BAPICOLL_STOCK_STR-NUMBER_OF_UNITS sy-vline 
WA_BAPICOLL_STOCK_STR-NOM_VALUE sy-vline 
WA_BAPICOLL_STOCK_STR-SHORT_TEXT sy-vline 
WA_BAPICOLL_STOCK_STR-LONG_TEXT sy-vline 
WA_BAPICOLL_STOCK_STR-ISSUER sy-vline 
WA_BAPICOLL_STOCK_STR-NOMINTRTE sy-vline 
WA_BAPICOLL_STOCK_STR-ISSUE_START sy-vline 
WA_BAPICOLL_STOCK_STR-SERIES sy-vline 
WA_BAPICOLL_STOCK_STR-SERIES_ROW sy-vline 
WA_BAPICOLL_STOCK_STR-CUST_TYPE sy-vline 
WA_BAPICOLL_STOCK_STR-SECACCSHRT sy-vline 
WA_BAPICOLL_STOCK_STR-TERM_START sy-vline 
WA_BAPICOLL_STOCK_STR-FINAL_DUE_DATE sy-vline 
WA_BAPICOLL_STOCK_STR-NAME_1 sy-vline 
WA_BAPICOLL_STOCK_STR-NAME_2 sy-vline 
WA_BAPICOLL_STOCK_STR-SEC_ACCT sy-vline 
WA_BAPICOLL_STOCK_STR-DOCUM_ON sy-vline 
WA_BAPICOLL_STOCK_STR-COUNTRY sy-vline 
WA_BAPICOLL_STOCK_STR-COUNTRY_ISO sy-vline      INTO ld_text SEPARATED BY SPACE.

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