ABAP Select data from SAP table BBPS_WLRA_OBJECT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BBPS_WLRA_OBJECT
*  INTO TABLE @DATA(IT_BBPS_WLRA_OBJECT2).
*--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_BBPS_WLRA_OBJECT INDEX 1 INTO DATA(WA_BBPS_WLRA_OBJECT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BBPS_WLRA_OBJECT>-SELECTED = 1.
<BBPS_WLRA_OBJECT>-OBJECT_TYPE = 1.
<BBPS_WLRA_OBJECT>-OBJECT_TYPE_NAME = 1.
<BBPS_WLRA_OBJECT>-HEADER = 1.
<BBPS_WLRA_OBJECT>-PARENT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BBPS_WLRA_OBJECT-ITEM, sy-vline,
  WA_BBPS_WLRA_OBJECT-DESCRIPTION, sy-vline,
  WA_BBPS_WLRA_OBJECT-OBJECT_ID, sy-vline,
  WA_BBPS_WLRA_OBJECT-ITEM_NUMBER, sy-vline,
  WA_BBPS_WLRA_OBJECT-PURCH_GRP, sy-vline,
  WA_BBPS_WLRA_OBJECT-PURCH_GRP_TEXT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BBPS_WLRA_OBJECT 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_BBPS_WLRA_OBJECT 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_BBPS_WLRA_OBJECT INTO WA_BBPS_WLRA_OBJECT.


*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 OBJECT_ID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BBPS_WLRA_OBJECT-OBJECT_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BBPS_WLRA_OBJECT-OBJECT_ID.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field CTR_HDR_NUMBER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BBPS_WLRA_OBJECT-CTR_HDR_NUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BBPS_WLRA_OBJECT-CTR_HDR_NUMBER.
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_BBPS_WLRA_OBJECT_STR, 
SELECTED TYPE STRING,
OBJECT_TYPE TYPE STRING,
OBJECT_TYPE_NAME TYPE STRING,
HEADER TYPE STRING,
PARENT TYPE STRING,
ITEM TYPE STRING,
DESCRIPTION TYPE STRING,
OBJECT_ID TYPE STRING,
ITEM_NUMBER TYPE STRING,
PURCH_GRP TYPE STRING,
PURCH_GRP_TEXT TYPE STRING,
PURCH_ORG TYPE STRING,
PURCH_ORG_TEXT TYPE STRING,
DEST_PURCH_GRP TYPE STRING,
DEST_PURCH_GRP_TEXT TYPE STRING,
DEST_PURCH_ORG TYPE STRING,
DEST_PURCH_ORG_TEXT TYPE STRING,
ORDERED_PROD TYPE STRING,
CATEGORY_ID TYPE STRING,
CT_CATEGORY_ID TYPE STRING,
UNIT TYPE STRING,
CTR_GUID TYPE STRING,
CTR_ITEM_NUMBER TYPE STRING,
CTR_HDR_NUMBER TYPE STRING,
EXT_DEMID TYPE STRING,
EXT_DEM_POSID TYPE STRING,
QUANTITY TYPE STRING,
INCOMPLETE TYPE STRING,
STATUS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BBPS_WLRA_OBJECT_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_BBPS_WLRA_OBJECT_STR-SELECTED sy-vline 
WA_BBPS_WLRA_OBJECT_STR-OBJECT_TYPE sy-vline 
WA_BBPS_WLRA_OBJECT_STR-OBJECT_TYPE_NAME sy-vline 
WA_BBPS_WLRA_OBJECT_STR-HEADER sy-vline 
WA_BBPS_WLRA_OBJECT_STR-PARENT sy-vline 
WA_BBPS_WLRA_OBJECT_STR-ITEM sy-vline 
WA_BBPS_WLRA_OBJECT_STR-DESCRIPTION sy-vline 
WA_BBPS_WLRA_OBJECT_STR-OBJECT_ID sy-vline 
WA_BBPS_WLRA_OBJECT_STR-ITEM_NUMBER sy-vline 
WA_BBPS_WLRA_OBJECT_STR-PURCH_GRP sy-vline 
WA_BBPS_WLRA_OBJECT_STR-PURCH_GRP_TEXT sy-vline 
WA_BBPS_WLRA_OBJECT_STR-PURCH_ORG sy-vline 
WA_BBPS_WLRA_OBJECT_STR-PURCH_ORG_TEXT sy-vline 
WA_BBPS_WLRA_OBJECT_STR-DEST_PURCH_GRP sy-vline 
WA_BBPS_WLRA_OBJECT_STR-DEST_PURCH_GRP_TEXT sy-vline 
WA_BBPS_WLRA_OBJECT_STR-DEST_PURCH_ORG sy-vline 
WA_BBPS_WLRA_OBJECT_STR-DEST_PURCH_ORG_TEXT sy-vline 
WA_BBPS_WLRA_OBJECT_STR-ORDERED_PROD sy-vline 
WA_BBPS_WLRA_OBJECT_STR-CATEGORY_ID sy-vline 
WA_BBPS_WLRA_OBJECT_STR-CT_CATEGORY_ID sy-vline 
WA_BBPS_WLRA_OBJECT_STR-UNIT sy-vline 
WA_BBPS_WLRA_OBJECT_STR-CTR_GUID sy-vline 
WA_BBPS_WLRA_OBJECT_STR-CTR_ITEM_NUMBER sy-vline 
WA_BBPS_WLRA_OBJECT_STR-CTR_HDR_NUMBER sy-vline 
WA_BBPS_WLRA_OBJECT_STR-EXT_DEMID sy-vline 
WA_BBPS_WLRA_OBJECT_STR-EXT_DEM_POSID sy-vline 
WA_BBPS_WLRA_OBJECT_STR-QUANTITY sy-vline 
WA_BBPS_WLRA_OBJECT_STR-INCOMPLETE sy-vline 
WA_BBPS_WLRA_OBJECT_STR-STATUS sy-vline      INTO ld_text SEPARATED BY SPACE.

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