ABAP Select data from SAP table /BOBF/DET_LIST into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /BOBF/DET_LIST 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 /BOBF/DET_LIST. 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 /BOBF/DET_LIST 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_/BOBF/DET_LIST TYPE STANDARD TABLE OF /BOBF/DET_LIST,
      WA_/BOBF/DET_LIST TYPE /BOBF/DET_LIST,
      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: </BOBF/DET_LIST> TYPE /BOBF/DET_LIST.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /BOBF/DET_LIST
  INTO TABLE IT_/BOBF/DET_LIST.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /BOBF/DET_LIST
*  INTO TABLE @DATA(IT_/BOBF/DET_LIST2).
*--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_/BOBF/DET_LIST INDEX 1 INTO DATA(WA_/BOBF/DET_LIST2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/BOBF/DET_LIST ASSIGNING </BOBF/DET_LIST>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</BOBF/DET_LIST>-NAME = 1.
</BOBF/DET_LIST>-EXTENSION = 1.
</BOBF/DET_LIST>-VERSION = 1.
</BOBF/DET_LIST>-DET_KEY = 1.
</BOBF/DET_LIST>-BO_KEY = 1.

ENDLOOP.

LOOP AT IT_/BOBF/DET_LIST INTO WA_/BOBF/DET_LIST.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/BOBF/DET_LIST-DET_NAME, sy-vline,
  WA_/BOBF/DET_LIST-NODE_KEY, sy-vline,
  WA_/BOBF/DET_LIST-DET_CAT, sy-vline,
  WA_/BOBF/DET_LIST-DET_CLASS, sy-vline,
  WA_/BOBF/DET_LIST-EDIT_MODE, sy-vline,
  WA_/BOBF/DET_LIST-NO_EXEC_IF_FAIL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/BOBF/DET_LIST 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_/BOBF/DET_LIST 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_/BOBF/DET_LIST INTO WA_/BOBF/DET_LIST.


*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 CREATE_TIME
CALL FUNCTION 'CONVERSION_EXIT_TSTLC_OUTPUT'
  EXPORTING
    input =                      WA_/BOBF/DET_LIST-CREATE_TIME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/BOBF/DET_LIST-CREATE_TIME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTLC, internal->external for field CHANGE_TIME
CALL FUNCTION 'CONVERSION_EXIT_TSTLC_OUTPUT'
  EXPORTING
    input =                      WA_/BOBF/DET_LIST-CHANGE_TIME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/BOBF/DET_LIST-CHANGE_TIME.
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_/BOBF/DET_LIST_STR, 
NAME TYPE STRING,
EXTENSION TYPE STRING,
VERSION TYPE STRING,
DET_KEY TYPE STRING,
BO_KEY TYPE STRING,
DET_NAME TYPE STRING,
NODE_KEY TYPE STRING,
DET_CAT TYPE STRING,
DET_CLASS TYPE STRING,
EDIT_MODE TYPE STRING,
NO_EXEC_IF_FAIL TYPE STRING,
CHECK_IMPL TYPE STRING,
CHECK_DELTA_IMPL TYPE STRING,
TD_CONTAINER TYPE STRING,
TD_CONTAINER_VAR TYPE STRING,
CREATE_USER TYPE STRING,
CREATE_TIME TYPE STRING,
CHANGE_USER TYPE STRING,
CHANGE_TIME TYPE STRING,
DET_PATTERN TYPE STRING,
SIMPLIFIED_DT_TAG TYPE STRING,
OBJECT_MODEL_GENERATED TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/BOBF/DET_LIST_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_/BOBF/DET_LIST_STR-NAME sy-vline 
WA_/BOBF/DET_LIST_STR-EXTENSION sy-vline 
WA_/BOBF/DET_LIST_STR-VERSION sy-vline 
WA_/BOBF/DET_LIST_STR-DET_KEY sy-vline 
WA_/BOBF/DET_LIST_STR-BO_KEY sy-vline 
WA_/BOBF/DET_LIST_STR-DET_NAME sy-vline 
WA_/BOBF/DET_LIST_STR-NODE_KEY sy-vline 
WA_/BOBF/DET_LIST_STR-DET_CAT sy-vline 
WA_/BOBF/DET_LIST_STR-DET_CLASS sy-vline 
WA_/BOBF/DET_LIST_STR-EDIT_MODE sy-vline 
WA_/BOBF/DET_LIST_STR-NO_EXEC_IF_FAIL sy-vline 
WA_/BOBF/DET_LIST_STR-CHECK_IMPL sy-vline 
WA_/BOBF/DET_LIST_STR-CHECK_DELTA_IMPL sy-vline 
WA_/BOBF/DET_LIST_STR-TD_CONTAINER sy-vline 
WA_/BOBF/DET_LIST_STR-TD_CONTAINER_VAR sy-vline 
WA_/BOBF/DET_LIST_STR-CREATE_USER sy-vline 
WA_/BOBF/DET_LIST_STR-CREATE_TIME sy-vline 
WA_/BOBF/DET_LIST_STR-CHANGE_USER sy-vline 
WA_/BOBF/DET_LIST_STR-CHANGE_TIME sy-vline 
WA_/BOBF/DET_LIST_STR-DET_PATTERN sy-vline 
WA_/BOBF/DET_LIST_STR-SIMPLIFIED_DT_TAG sy-vline 
WA_/BOBF/DET_LIST_STR-OBJECT_MODEL_GENERATED sy-vline      INTO ld_text SEPARATED BY SPACE.

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