ABAP Select data from SAP table /IAM/D_ACT_ROOT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /IAM/D_ACT_ROOT
*  INTO TABLE @DATA(IT_/IAM/D_ACT_ROOT2).
*--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_/IAM/D_ACT_ROOT INDEX 1 INTO DATA(WA_/IAM/D_ACT_ROOT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</IAM/D_ACT_ROOT>-MANDT = 1.
</IAM/D_ACT_ROOT>-DB_KEY = 1.
</IAM/D_ACT_ROOT>-NODE_CAT_KEY = 1.
</IAM/D_ACT_ROOT>-ACTIVITY_ID = 1.
</IAM/D_ACT_ROOT>-APPLICATION = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/IAM/D_ACT_ROOT-ACT_TEMPLATE, sy-vline,
  WA_/IAM/D_ACT_ROOT-ACT_TYPE, sy-vline,
  WA_/IAM/D_ACT_ROOT-ACT_CATEGORY, sy-vline,
  WA_/IAM/D_ACT_ROOT-PAR_ISSUE_UUID, sy-vline,
  WA_/IAM/D_ACT_ROOT-PAR_ACT_UUID, sy-vline,
  WA_/IAM/D_ACT_ROOT-SORTNO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/IAM/D_ACT_ROOT 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_/IAM/D_ACT_ROOT 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_/IAM/D_ACT_ROOT INTO WA_/IAM/D_ACT_ROOT.


*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 ACTIVITY_ID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/IAM/D_ACT_ROOT-ACTIVITY_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/IAM/D_ACT_ROOT-ACTIVITY_ID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SEL_CRIT_CD
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/IAM/D_ACT_ROOT-SEL_CRIT_CD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/IAM/D_ACT_ROOT-SEL_CRIT_CD.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field MASTER_LANGUAGE
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_/IAM/D_ACT_ROOT-MASTER_LANGUAGE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/IAM/D_ACT_ROOT-MASTER_LANGUAGE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field USER_STATUS_01
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/IAM/D_ACT_ROOT-USER_STATUS_01
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/IAM/D_ACT_ROOT-USER_STATUS_01.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field USER_STATUS_02
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/IAM/D_ACT_ROOT-USER_STATUS_02
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/IAM/D_ACT_ROOT-USER_STATUS_02.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field USER_STATUS_03
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/IAM/D_ACT_ROOT-USER_STATUS_03
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/IAM/D_ACT_ROOT-USER_STATUS_03.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field USER_STATUS_04
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/IAM/D_ACT_ROOT-USER_STATUS_04
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/IAM/D_ACT_ROOT-USER_STATUS_04.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field USER_STATUS_05
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/IAM/D_ACT_ROOT-USER_STATUS_05
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/IAM/D_ACT_ROOT-USER_STATUS_05.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTLC, internal->external for field CREATED_ON
CALL FUNCTION 'CONVERSION_EXIT_TSTLC_OUTPUT'
  EXPORTING
    input =                      WA_/IAM/D_ACT_ROOT-CREATED_ON
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/IAM/D_ACT_ROOT-CREATED_ON.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTLC, internal->external for field CHANGED_ON
CALL FUNCTION 'CONVERSION_EXIT_TSTLC_OUTPUT'
  EXPORTING
    input =                      WA_/IAM/D_ACT_ROOT-CHANGED_ON
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/IAM/D_ACT_ROOT-CHANGED_ON.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ALTERNATIVE_ID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/IAM/D_ACT_ROOT-ALTERNATIVE_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/IAM/D_ACT_ROOT-ALTERNATIVE_ID.
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_/IAM/D_ACT_ROOT_STR, 
MANDT TYPE STRING,
DB_KEY TYPE STRING,
NODE_CAT_KEY TYPE STRING,
ACTIVITY_ID TYPE STRING,
APPLICATION TYPE STRING,
ACT_TEMPLATE TYPE STRING,
ACT_TYPE TYPE STRING,
ACT_CATEGORY TYPE STRING,
PAR_ISSUE_UUID TYPE STRING,
PAR_ACT_UUID TYPE STRING,
SORTNO TYPE STRING,
AUTH_GROUP TYPE STRING,
MANDATORY TYPE STRING,
CONT_INCOMPLETE TYPE STRING,
ORIGIN_CD TYPE STRING,
PROPOSAL_IND TYPE STRING,
SEL_CRIT_CD TYPE STRING,
RESP_VAL_BOOL TYPE STRING,
LONG_TERM TYPE STRING,
OBLIGATORY TYPE STRING,
ACT_MASTER_UUID TYPE STRING,
PHASE TYPE STRING,
STATUS_PROFILE TYPE STRING,
MASTER_LANGUAGE TYPE STRING,
LCYCLE_CD TYPE STRING,
DEFERRAL_CD TYPE STRING,
APPROVAL_CD TYPE STRING,
ARCHIVING_CD TYPE STRING,
CONSIST_CD TYPE STRING,
FOLLOWUP_CD TYPE STRING,
VALIDATION_CD TYPE STRING,
PROCESSING_CD TYPE STRING,
DIGSIGN_CD TYPE STRING,
DIGSIGN_ACTION TYPE STRING,
USER_STATUS_01 TYPE STRING,
USER_STATUS_02 TYPE STRING,
USER_STATUS_03 TYPE STRING,
USER_STATUS_04 TYPE STRING,
USER_STATUS_05 TYPE STRING,
CREATED_BY TYPE STRING,
CREATED_ON TYPE STRING,
CHANGED_BY TYPE STRING,
CHANGED_ON TYPE STRING,
ACT_ROOT TYPE STRING,
/CPD/MC_GROUP_ID TYPE STRING,
/CPD/MC_ITEM_ID TYPE STRING,
/CPD/MC_OBJECT_ID TYPE STRING,
/CPD/MC_STATUS TYPE STRING,
/CPD/MC_REASON_CODE TYPE STRING,
/CPD/MC_PRIORITY TYPE STRING,
/CPD/MC_SORT_NO TYPE STRING,
ARCHIVING TYPE STRING,
ACT_ITEM_STAT_CD TYPE STRING,
ADMIN_INFO TYPE STRING,
VERSION_GUID TYPE STRING,
MIGRATION_SOURCE TYPE STRING,
ALTERNATIVE_ID TYPE STRING,
ALTERNATIVE_KEY TYPE STRING,
ARCHIVING_STATUS TYPE STRING,
CEA_STATUS TYPE STRING,
CEA_STATUS_IMG TYPE STRING,
CEA_ACTIVE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/IAM/D_ACT_ROOT_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_/IAM/D_ACT_ROOT_STR-MANDT sy-vline 
WA_/IAM/D_ACT_ROOT_STR-DB_KEY sy-vline 
WA_/IAM/D_ACT_ROOT_STR-NODE_CAT_KEY sy-vline 
WA_/IAM/D_ACT_ROOT_STR-ACTIVITY_ID sy-vline 
WA_/IAM/D_ACT_ROOT_STR-APPLICATION sy-vline 
WA_/IAM/D_ACT_ROOT_STR-ACT_TEMPLATE sy-vline 
WA_/IAM/D_ACT_ROOT_STR-ACT_TYPE sy-vline 
WA_/IAM/D_ACT_ROOT_STR-ACT_CATEGORY sy-vline 
WA_/IAM/D_ACT_ROOT_STR-PAR_ISSUE_UUID sy-vline 
WA_/IAM/D_ACT_ROOT_STR-PAR_ACT_UUID sy-vline 
WA_/IAM/D_ACT_ROOT_STR-SORTNO sy-vline 
WA_/IAM/D_ACT_ROOT_STR-AUTH_GROUP sy-vline 
WA_/IAM/D_ACT_ROOT_STR-MANDATORY sy-vline 
WA_/IAM/D_ACT_ROOT_STR-CONT_INCOMPLETE sy-vline 
WA_/IAM/D_ACT_ROOT_STR-ORIGIN_CD sy-vline 
WA_/IAM/D_ACT_ROOT_STR-PROPOSAL_IND sy-vline 
WA_/IAM/D_ACT_ROOT_STR-SEL_CRIT_CD sy-vline 
WA_/IAM/D_ACT_ROOT_STR-RESP_VAL_BOOL sy-vline 
WA_/IAM/D_ACT_ROOT_STR-LONG_TERM sy-vline 
WA_/IAM/D_ACT_ROOT_STR-OBLIGATORY sy-vline 
WA_/IAM/D_ACT_ROOT_STR-ACT_MASTER_UUID sy-vline 
WA_/IAM/D_ACT_ROOT_STR-PHASE sy-vline 
WA_/IAM/D_ACT_ROOT_STR-STATUS_PROFILE sy-vline 
WA_/IAM/D_ACT_ROOT_STR-MASTER_LANGUAGE sy-vline 
WA_/IAM/D_ACT_ROOT_STR-LCYCLE_CD sy-vline 
WA_/IAM/D_ACT_ROOT_STR-DEFERRAL_CD sy-vline 
WA_/IAM/D_ACT_ROOT_STR-APPROVAL_CD sy-vline 
WA_/IAM/D_ACT_ROOT_STR-ARCHIVING_CD sy-vline 
WA_/IAM/D_ACT_ROOT_STR-CONSIST_CD sy-vline 
WA_/IAM/D_ACT_ROOT_STR-FOLLOWUP_CD sy-vline 
WA_/IAM/D_ACT_ROOT_STR-VALIDATION_CD sy-vline 
WA_/IAM/D_ACT_ROOT_STR-PROCESSING_CD sy-vline 
WA_/IAM/D_ACT_ROOT_STR-DIGSIGN_CD sy-vline 
WA_/IAM/D_ACT_ROOT_STR-DIGSIGN_ACTION sy-vline 
WA_/IAM/D_ACT_ROOT_STR-USER_STATUS_01 sy-vline 
WA_/IAM/D_ACT_ROOT_STR-USER_STATUS_02 sy-vline 
WA_/IAM/D_ACT_ROOT_STR-USER_STATUS_03 sy-vline 
WA_/IAM/D_ACT_ROOT_STR-USER_STATUS_04 sy-vline 
WA_/IAM/D_ACT_ROOT_STR-USER_STATUS_05 sy-vline 
WA_/IAM/D_ACT_ROOT_STR-CREATED_BY sy-vline 
WA_/IAM/D_ACT_ROOT_STR-CREATED_ON sy-vline 
WA_/IAM/D_ACT_ROOT_STR-CHANGED_BY sy-vline 
WA_/IAM/D_ACT_ROOT_STR-CHANGED_ON sy-vline 
WA_/IAM/D_ACT_ROOT_STR-ACT_ROOT sy-vline 
WA_/IAM/D_ACT_ROOT_STR-/CPD/MC_GROUP_ID sy-vline 
WA_/IAM/D_ACT_ROOT_STR-/CPD/MC_ITEM_ID sy-vline 
WA_/IAM/D_ACT_ROOT_STR-/CPD/MC_OBJECT_ID sy-vline 
WA_/IAM/D_ACT_ROOT_STR-/CPD/MC_STATUS sy-vline 
WA_/IAM/D_ACT_ROOT_STR-/CPD/MC_REASON_CODE sy-vline 
WA_/IAM/D_ACT_ROOT_STR-/CPD/MC_PRIORITY sy-vline 
WA_/IAM/D_ACT_ROOT_STR-/CPD/MC_SORT_NO sy-vline 
WA_/IAM/D_ACT_ROOT_STR-ARCHIVING sy-vline 
WA_/IAM/D_ACT_ROOT_STR-ACT_ITEM_STAT_CD sy-vline 
WA_/IAM/D_ACT_ROOT_STR-ADMIN_INFO sy-vline 
WA_/IAM/D_ACT_ROOT_STR-VERSION_GUID sy-vline 
WA_/IAM/D_ACT_ROOT_STR-MIGRATION_SOURCE sy-vline 
WA_/IAM/D_ACT_ROOT_STR-ALTERNATIVE_ID sy-vline 
WA_/IAM/D_ACT_ROOT_STR-ALTERNATIVE_KEY sy-vline 
WA_/IAM/D_ACT_ROOT_STR-ARCHIVING_STATUS sy-vline 
WA_/IAM/D_ACT_ROOT_STR-CEA_STATUS sy-vline 
WA_/IAM/D_ACT_ROOT_STR-CEA_STATUS_IMG sy-vline 
WA_/IAM/D_ACT_ROOT_STR-CEA_ACTIVE sy-vline      INTO ld_text SEPARATED BY SPACE.

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