ABAP Select data from SAP table BAPIBDS01 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP BAPIBDS01 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 BAPIBDS01. 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 BAPIBDS01 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_BAPIBDS01 TYPE STANDARD TABLE OF BAPIBDS01,
      WA_BAPIBDS01 TYPE BAPIBDS01,
      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: <BAPIBDS01> TYPE BAPIBDS01.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_BAPIBDS01.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM BAPIBDS01
  INTO TABLE IT_BAPIBDS01.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BAPIBDS01
*  INTO TABLE @DATA(IT_BAPIBDS012).
*--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_BAPIBDS01 INDEX 1 INTO DATA(WA_BAPIBDS012).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_BAPIBDS01 ASSIGNING <BAPIBDS01>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BAPIBDS01>-BARCODE = 1.
<BAPIBDS01>-CLASSNAME = 1.
<BAPIBDS01>-CLASSTYPE = 1.
<BAPIBDS01>-CLIENT = 1.
<BAPIBDS01>-COMP_COUNT = 1.

ENDLOOP.

LOOP AT IT_BAPIBDS01 INTO WA_BAPIBDS01.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BAPIBDS01-COMP_ID, sy-vline,
  WA_BAPIBDS01-CONTREP, sy-vline,
  WA_BAPIBDS01-CONT_CATEG, sy-vline,
  WA_BAPIBDS01-DIRECTORY, sy-vline,
  WA_BAPIBDS01-DOC_CLASS, sy-vline,
  WA_BAPIBDS01-DOC_COUNT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BAPIBDS01 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_BAPIBDS01 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_BAPIBDS01 INTO WA_BAPIBDS01.


*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 TSTLC, internal->external for field DONE_AT
CALL FUNCTION 'CONVERSION_EXIT_TSTLC_OUTPUT'
  EXPORTING
    input =                      WA_BAPIBDS01-DONE_AT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPIBDS01-DONE_AT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LOG_SYSTEM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BAPIBDS01-LOG_SYSTEM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPIBDS01-LOG_SYSTEM.
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_BAPIBDS01_STR, 
BARCODE TYPE STRING,
CLASSNAME TYPE STRING,
CLASSTYPE TYPE STRING,
CLIENT TYPE STRING,
COMP_COUNT TYPE STRING,
COMP_ID TYPE STRING,
CONTREP TYPE STRING,
CONT_CATEG TYPE STRING,
DIRECTORY TYPE STRING,
DOC_CLASS TYPE STRING,
DOC_COUNT TYPE STRING,
DOC_ID TYPE STRING,
DOC_VER_NO TYPE STRING,
DOC_VAR_ID TYPE STRING,
DOC_VAR_TG TYPE STRING,
DOC_TYPE TYPE STRING,
DONE_BY TYPE STRING,
DONE_AT TYPE STRING,
EX_DOC_ID TYPE STRING,
FILENAME TYPE STRING,
FUNCNAME TYPE STRING,
KEY_WORD TYPE STRING,
LOG_LEVEL TYPE STRING,
LOG_SYSTEM TYPE STRING,
LOIO_ID TYPE STRING,
LOIO_CLASS TYPE STRING,
METHOD TYPE STRING,
MIMETYPE TYPE STRING,
OBJKEY TYPE STRING,
PHIO_ID TYPE STRING,
PHIO_CLASS TYPE STRING,
PROP_NAME TYPE STRING,
PROP_VALUE TYPE STRING,
RELA_ID TYPE STRING,
RELA_CLASS TYPE STRING,
STATE TYPE STRING,
TYPE TYPE STRING,
URI TYPE STRING,
URI_COUNT TYPE STRING,
URI_LIFE TYPE STRING,
X TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BAPIBDS01_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_BAPIBDS01_STR-BARCODE sy-vline 
WA_BAPIBDS01_STR-CLASSNAME sy-vline 
WA_BAPIBDS01_STR-CLASSTYPE sy-vline 
WA_BAPIBDS01_STR-CLIENT sy-vline 
WA_BAPIBDS01_STR-COMP_COUNT sy-vline 
WA_BAPIBDS01_STR-COMP_ID sy-vline 
WA_BAPIBDS01_STR-CONTREP sy-vline 
WA_BAPIBDS01_STR-CONT_CATEG sy-vline 
WA_BAPIBDS01_STR-DIRECTORY sy-vline 
WA_BAPIBDS01_STR-DOC_CLASS sy-vline 
WA_BAPIBDS01_STR-DOC_COUNT sy-vline 
WA_BAPIBDS01_STR-DOC_ID sy-vline 
WA_BAPIBDS01_STR-DOC_VER_NO sy-vline 
WA_BAPIBDS01_STR-DOC_VAR_ID sy-vline 
WA_BAPIBDS01_STR-DOC_VAR_TG sy-vline 
WA_BAPIBDS01_STR-DOC_TYPE sy-vline 
WA_BAPIBDS01_STR-DONE_BY sy-vline 
WA_BAPIBDS01_STR-DONE_AT sy-vline 
WA_BAPIBDS01_STR-EX_DOC_ID sy-vline 
WA_BAPIBDS01_STR-FILENAME sy-vline 
WA_BAPIBDS01_STR-FUNCNAME sy-vline 
WA_BAPIBDS01_STR-KEY_WORD sy-vline 
WA_BAPIBDS01_STR-LOG_LEVEL sy-vline 
WA_BAPIBDS01_STR-LOG_SYSTEM sy-vline 
WA_BAPIBDS01_STR-LOIO_ID sy-vline 
WA_BAPIBDS01_STR-LOIO_CLASS sy-vline 
WA_BAPIBDS01_STR-METHOD sy-vline 
WA_BAPIBDS01_STR-MIMETYPE sy-vline 
WA_BAPIBDS01_STR-OBJKEY sy-vline 
WA_BAPIBDS01_STR-PHIO_ID sy-vline 
WA_BAPIBDS01_STR-PHIO_CLASS sy-vline 
WA_BAPIBDS01_STR-PROP_NAME sy-vline 
WA_BAPIBDS01_STR-PROP_VALUE sy-vline 
WA_BAPIBDS01_STR-RELA_ID sy-vline 
WA_BAPIBDS01_STR-RELA_CLASS sy-vline 
WA_BAPIBDS01_STR-STATE sy-vline 
WA_BAPIBDS01_STR-TYPE sy-vline 
WA_BAPIBDS01_STR-URI sy-vline 
WA_BAPIBDS01_STR-URI_COUNT sy-vline 
WA_BAPIBDS01_STR-URI_LIFE sy-vline 
WA_BAPIBDS01_STR-X sy-vline      INTO ld_text SEPARATED BY SPACE.

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