ABAP Select data from SAP table HREIC_S_ACTIVITY_ADDED_ATTR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM HREIC_S_ACTIVITY_ADDED_ATTR
*  INTO TABLE @DATA(IT_HREIC_S_ACTIVITY_ADDED_ATTR2).
*--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_HREIC_S_ACTIVITY_ADDED_ATTR INDEX 1 INTO DATA(WA_HREIC_S_ACTIVITY_ADDED_ATTR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<HREIC_S_ACTIVITY_ADDED_ATTR>-EIC_CATEGORY = 1.
<HREIC_S_ACTIVITY_ADDED_ATTR>-EIC_SUBCATEGORY = 1.
<HREIC_S_ACTIVITY_ADDED_ATTR>-EIC_SUBCATEGORY2 = 1.
<HREIC_S_ACTIVITY_ADDED_ATTR>-EIC_SUBCATEGORY3 = 1.
<HREIC_S_ACTIVITY_ADDED_ATTR>-EIC_SUBCATEGORY4 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_HREIC_S_ACTIVITY_ADDED_ATTR-EIC_PRIORITY, sy-vline,
  WA_HREIC_S_ACTIVITY_ADDED_ATTR-EIC_PERNR, sy-vline,
  WA_HREIC_S_ACTIVITY_ADDED_ATTR-EIC_PERSONID, sy-vline,
  WA_HREIC_S_ACTIVITY_ADDED_ATTR-EIC_CREATOR, sy-vline,
  WA_HREIC_S_ACTIVITY_ADDED_ATTR-EIC_CREAORGUNIT, sy-vline,
  WA_HREIC_S_ACTIVITY_ADDED_ATTR-EIC_OWNAGENT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_HREIC_S_ACTIVITY_ADDED_ATTR 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_HREIC_S_ACTIVITY_ADDED_ATTR 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_HREIC_S_ACTIVITY_ADDED_ATTR INTO WA_HREIC_S_ACTIVITY_ADDED_ATTR.


*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 PIDEX, internal->external for field EIC_PERSONID
CALL FUNCTION 'CONVERSION_EXIT_PIDEX_OUTPUT'
  EXPORTING
    input =                      WA_HREIC_S_ACTIVITY_ADDED_ATTR-EIC_PERSONID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_HREIC_S_ACTIVITY_ADDED_ATTR-EIC_PERSONID.
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_HREIC_S_ACTIVITY_ADDED_ATTR_STR, 
EIC_CATEGORY TYPE STRING,
EIC_SUBCATEGORY TYPE STRING,
EIC_SUBCATEGORY2 TYPE STRING,
EIC_SUBCATEGORY3 TYPE STRING,
EIC_SUBCATEGORY4 TYPE STRING,
EIC_PRIORITY TYPE STRING,
EIC_PERNR TYPE STRING,
EIC_PERSONID TYPE STRING,
EIC_CREATOR TYPE STRING,
EIC_CREAORGUNIT TYPE STRING,
EIC_OWNAGENT TYPE STRING,
EIC_OWNORGUNIT TYPE STRING,
EIC_PROCAGENT TYPE STRING,
EIC_PROCORGUNIT TYPE STRING,
CONTRACT TYPE STRING,
EIC_DUEDATE TYPE STRING,
EIC_REMINDDATE TYPE STRING,
EIC_COMPLETETIME TYPE STRING,
EIC_EXECUTETIME TYPE STRING,
STATCHNGTIME TYPE STRING,
TOTWTNGTIME TYPE STRING,
SERVICE TYPE STRING,
INITIATOR TYPE STRING,
INITIATOR_USER TYPE STRING,
OTYPE TYPE STRING,
PLVAR TYPE STRING,
OBJECTID TYPE STRING,
RESOLUTION TYPE STRING,END OF T_EKKO_STR.
DATA: WA_HREIC_S_ACTIVITY_ADDED_ATTR_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_HREIC_S_ACTIVITY_ADDED_ATTR_STR-EIC_CATEGORY sy-vline 
WA_HREIC_S_ACTIVITY_ADDED_ATTR_STR-EIC_SUBCATEGORY sy-vline 
WA_HREIC_S_ACTIVITY_ADDED_ATTR_STR-EIC_SUBCATEGORY2 sy-vline 
WA_HREIC_S_ACTIVITY_ADDED_ATTR_STR-EIC_SUBCATEGORY3 sy-vline 
WA_HREIC_S_ACTIVITY_ADDED_ATTR_STR-EIC_SUBCATEGORY4 sy-vline 
WA_HREIC_S_ACTIVITY_ADDED_ATTR_STR-EIC_PRIORITY sy-vline 
WA_HREIC_S_ACTIVITY_ADDED_ATTR_STR-EIC_PERNR sy-vline 
WA_HREIC_S_ACTIVITY_ADDED_ATTR_STR-EIC_PERSONID sy-vline 
WA_HREIC_S_ACTIVITY_ADDED_ATTR_STR-EIC_CREATOR sy-vline 
WA_HREIC_S_ACTIVITY_ADDED_ATTR_STR-EIC_CREAORGUNIT sy-vline 
WA_HREIC_S_ACTIVITY_ADDED_ATTR_STR-EIC_OWNAGENT sy-vline 
WA_HREIC_S_ACTIVITY_ADDED_ATTR_STR-EIC_OWNORGUNIT sy-vline 
WA_HREIC_S_ACTIVITY_ADDED_ATTR_STR-EIC_PROCAGENT sy-vline 
WA_HREIC_S_ACTIVITY_ADDED_ATTR_STR-EIC_PROCORGUNIT sy-vline 
WA_HREIC_S_ACTIVITY_ADDED_ATTR_STR-CONTRACT sy-vline 
WA_HREIC_S_ACTIVITY_ADDED_ATTR_STR-EIC_DUEDATE sy-vline 
WA_HREIC_S_ACTIVITY_ADDED_ATTR_STR-EIC_REMINDDATE sy-vline 
WA_HREIC_S_ACTIVITY_ADDED_ATTR_STR-EIC_COMPLETETIME sy-vline 
WA_HREIC_S_ACTIVITY_ADDED_ATTR_STR-EIC_EXECUTETIME sy-vline 
WA_HREIC_S_ACTIVITY_ADDED_ATTR_STR-STATCHNGTIME sy-vline 
WA_HREIC_S_ACTIVITY_ADDED_ATTR_STR-TOTWTNGTIME sy-vline 
WA_HREIC_S_ACTIVITY_ADDED_ATTR_STR-SERVICE sy-vline 
WA_HREIC_S_ACTIVITY_ADDED_ATTR_STR-INITIATOR sy-vline 
WA_HREIC_S_ACTIVITY_ADDED_ATTR_STR-INITIATOR_USER sy-vline 
WA_HREIC_S_ACTIVITY_ADDED_ATTR_STR-OTYPE sy-vline 
WA_HREIC_S_ACTIVITY_ADDED_ATTR_STR-PLVAR sy-vline 
WA_HREIC_S_ACTIVITY_ADDED_ATTR_STR-OBJECTID sy-vline 
WA_HREIC_S_ACTIVITY_ADDED_ATTR_STR-RESOLUTION sy-vline      INTO ld_text SEPARATED BY SPACE.

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