ABAP Select data from SAP table /SMB/S_ACT_REQ_DATA_ALV into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SMB/S_ACT_REQ_DATA_ALV
*  INTO TABLE @DATA(IT_/SMB/S_ACT_REQ_DATA_ALV2).
*--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_/SMB/S_ACT_REQ_DATA_ALV INDEX 1 INTO DATA(WA_/SMB/S_ACT_REQ_DATA_ALV2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SMB/S_ACT_REQ_DATA_ALV>-KEY = 1.
</SMB/S_ACT_REQ_DATA_ALV>-PARENT_KEY = 1.
</SMB/S_ACT_REQ_DATA_ALV>-ROOT_KEY = 1.
</SMB/S_ACT_REQ_DATA_ALV>-QUEUE_STATUS = 1.
</SMB/S_ACT_REQ_DATA_ALV>-SOLUTION_ID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SMB/S_ACT_REQ_DATA_ALV-SCOPE_ITEM_ID, sy-vline,
  WA_/SMB/S_ACT_REQ_DATA_ALV-BBID, sy-vline,
  WA_/SMB/S_ACT_REQ_DATA_ALV-OBJIDX, sy-vline,
  WA_/SMB/S_ACT_REQ_DATA_ALV-OBJECT_ID, sy-vline,
  WA_/SMB/S_ACT_REQ_DATA_ALV-OBJECT_DESCR, sy-vline,
  WA_/SMB/S_ACT_REQ_DATA_ALV-STATUS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SMB/S_ACT_REQ_DATA_ALV 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_/SMB/S_ACT_REQ_DATA_ALV 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_/SMB/S_ACT_REQ_DATA_ALV INTO WA_/SMB/S_ACT_REQ_DATA_ALV.


*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 ISOLA, internal->external for field TARGET_LANGUAGE
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_/SMB/S_ACT_REQ_DATA_ALV-TARGET_LANGUAGE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SMB/S_ACT_REQ_DATA_ALV-TARGET_LANGUAGE.
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_/SMB/S_ACT_REQ_DATA_ALV_STR, 
KEY TYPE STRING,
PARENT_KEY TYPE STRING,
ROOT_KEY TYPE STRING,
QUEUE_STATUS TYPE STRING,
SOLUTION_ID TYPE STRING,
SCOPE_ITEM_ID TYPE STRING,
BBID TYPE STRING,
OBJIDX TYPE STRING,
OBJECT_ID TYPE STRING,
OBJECT_DESCR TYPE STRING,
STATUS TYPE STRING,
TARGET_LANGUAGE TYPE STRING,
WITH_DEMO_DATA TYPE STRING,
LOG_HANDLE TYPE STRING,
ASYNCHRONOUS TYPE STRING,
CALLED_FROM_INST_ASS TYPE STRING,
ACT_CALLED_FROM TYPE STRING,
ACT_DONE_FOR TYPE STRING,
BATCH_JOB_NAME TYPE STRING,
BATCH_JOB_NUMBER TYPE STRING,
ACT_TYPE TYPE STRING,
IGNORE_ERRORS TYPE STRING,
RESTARTED TYPE STRING,
ACT_MANDT TYPE STRING,
CREATED_AT TYPE STRING,
CREATED_BY TYPE STRING,
LAST_CHANGED_AT TYPE STRING,
LAST_CHANGED_BY TYPE STRING,
STATUS_TEXT TYPE STRING,
STATUS_ICON TYPE STRING,
QUEUE_STATUS_TEXT TYPE STRING,
ACT_DONE_FOR_TEXT TYPE STRING,
ACT_CALLED_FROM_TEXT TYPE STRING,
ACT_ATYPE_TEXT TYPE STRING,
ACT_HISTORY_LINK TYPE STRING,
ACT_LOG_LINK TYPE STRING,
ACT_TYPE_ICON TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SMB/S_ACT_REQ_DATA_ALV_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_/SMB/S_ACT_REQ_DATA_ALV_STR-KEY sy-vline 
WA_/SMB/S_ACT_REQ_DATA_ALV_STR-PARENT_KEY sy-vline 
WA_/SMB/S_ACT_REQ_DATA_ALV_STR-ROOT_KEY sy-vline 
WA_/SMB/S_ACT_REQ_DATA_ALV_STR-QUEUE_STATUS sy-vline 
WA_/SMB/S_ACT_REQ_DATA_ALV_STR-SOLUTION_ID sy-vline 
WA_/SMB/S_ACT_REQ_DATA_ALV_STR-SCOPE_ITEM_ID sy-vline 
WA_/SMB/S_ACT_REQ_DATA_ALV_STR-BBID sy-vline 
WA_/SMB/S_ACT_REQ_DATA_ALV_STR-OBJIDX sy-vline 
WA_/SMB/S_ACT_REQ_DATA_ALV_STR-OBJECT_ID sy-vline 
WA_/SMB/S_ACT_REQ_DATA_ALV_STR-OBJECT_DESCR sy-vline 
WA_/SMB/S_ACT_REQ_DATA_ALV_STR-STATUS sy-vline 
WA_/SMB/S_ACT_REQ_DATA_ALV_STR-TARGET_LANGUAGE sy-vline 
WA_/SMB/S_ACT_REQ_DATA_ALV_STR-WITH_DEMO_DATA sy-vline 
WA_/SMB/S_ACT_REQ_DATA_ALV_STR-LOG_HANDLE sy-vline 
WA_/SMB/S_ACT_REQ_DATA_ALV_STR-ASYNCHRONOUS sy-vline 
WA_/SMB/S_ACT_REQ_DATA_ALV_STR-CALLED_FROM_INST_ASS sy-vline 
WA_/SMB/S_ACT_REQ_DATA_ALV_STR-ACT_CALLED_FROM sy-vline 
WA_/SMB/S_ACT_REQ_DATA_ALV_STR-ACT_DONE_FOR sy-vline 
WA_/SMB/S_ACT_REQ_DATA_ALV_STR-BATCH_JOB_NAME sy-vline 
WA_/SMB/S_ACT_REQ_DATA_ALV_STR-BATCH_JOB_NUMBER sy-vline 
WA_/SMB/S_ACT_REQ_DATA_ALV_STR-ACT_TYPE sy-vline 
WA_/SMB/S_ACT_REQ_DATA_ALV_STR-IGNORE_ERRORS sy-vline 
WA_/SMB/S_ACT_REQ_DATA_ALV_STR-RESTARTED sy-vline 
WA_/SMB/S_ACT_REQ_DATA_ALV_STR-ACT_MANDT sy-vline 
WA_/SMB/S_ACT_REQ_DATA_ALV_STR-CREATED_AT sy-vline 
WA_/SMB/S_ACT_REQ_DATA_ALV_STR-CREATED_BY sy-vline 
WA_/SMB/S_ACT_REQ_DATA_ALV_STR-LAST_CHANGED_AT sy-vline 
WA_/SMB/S_ACT_REQ_DATA_ALV_STR-LAST_CHANGED_BY sy-vline 
WA_/SMB/S_ACT_REQ_DATA_ALV_STR-STATUS_TEXT sy-vline 
WA_/SMB/S_ACT_REQ_DATA_ALV_STR-STATUS_ICON sy-vline 
WA_/SMB/S_ACT_REQ_DATA_ALV_STR-QUEUE_STATUS_TEXT sy-vline 
WA_/SMB/S_ACT_REQ_DATA_ALV_STR-ACT_DONE_FOR_TEXT sy-vline 
WA_/SMB/S_ACT_REQ_DATA_ALV_STR-ACT_CALLED_FROM_TEXT sy-vline 
WA_/SMB/S_ACT_REQ_DATA_ALV_STR-ACT_ATYPE_TEXT sy-vline 
WA_/SMB/S_ACT_REQ_DATA_ALV_STR-ACT_HISTORY_LINK sy-vline 
WA_/SMB/S_ACT_REQ_DATA_ALV_STR-ACT_LOG_LINK sy-vline 
WA_/SMB/S_ACT_REQ_DATA_ALV_STR-ACT_TYPE_ICON sy-vline      INTO ld_text SEPARATED BY SPACE.

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