ABAP Select data from SAP table HRTEM00_WEB_ATTEND_ACTIVITIES into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP HRTEM00_WEB_ATTEND_ACTIVITIES 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 HRTEM00_WEB_ATTEND_ACTIVITIES. 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 HRTEM00_WEB_ATTEND_ACTIVITIES 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_HRTEM00_WEB_ATTEND_ACTIVITIES TYPE STANDARD TABLE OF HRTEM00_WEB_ATTEND_ACTIVITIES,
      WA_HRTEM00_WEB_ATTEND_ACTIVITIES TYPE HRTEM00_WEB_ATTEND_ACTIVITIES,
      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: <HRTEM00_WEB_ATTEND_ACTIVITIES> TYPE HRTEM00_WEB_ATTEND_ACTIVITIES.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_HRTEM00_WEB_ATTEND_ACTIVITIES.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM HRTEM00_WEB_ATTEND_ACTIVITIES
  INTO TABLE IT_HRTEM00_WEB_ATTEND_ACTIVITIES.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM HRTEM00_WEB_ATTEND_ACTIVITIES
*  INTO TABLE @DATA(IT_HRTEM00_WEB_ATTEND_ACTIVITIES2).
*--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_HRTEM00_WEB_ATTEND_ACTIVITIES INDEX 1 INTO DATA(WA_HRTEM00_WEB_ATTEND_ACTIVITIES2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_HRTEM00_WEB_ATTEND_ACTIVITIES ASSIGNING <HRTEM00_WEB_ATTEND_ACTIVITIES>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<HRTEM00_WEB_ATTEND_ACTIVITIES>-PLVAR = 1.
<HRTEM00_WEB_ATTEND_ACTIVITIES>-EVEID = 1.
<HRTEM00_WEB_ATTEND_ACTIVITIES>-EVSHT = 1.
<HRTEM00_WEB_ATTEND_ACTIVITIES>-EVSTX = 1.
<HRTEM00_WEB_ATTEND_ACTIVITIES>-EVBEG = 1.

ENDLOOP.

LOOP AT IT_HRTEM00_WEB_ATTEND_ACTIVITIES INTO WA_HRTEM00_WEB_ATTEND_ACTIVITIES.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_HRTEM00_WEB_ATTEND_ACTIVITIES-EVEND, sy-vline,
  WA_HRTEM00_WEB_ATTEND_ACTIVITIES-EVLNG, sy-vline,
  WA_HRTEM00_WEB_ATTEND_ACTIVITIES-LOCID, sy-vline,
  WA_HRTEM00_WEB_ATTEND_ACTIVITIES-LOCTX, sy-vline,
  WA_HRTEM00_WEB_ATTEND_ACTIVITIES-ISTAT, sy-vline,
  WA_HRTEM00_WEB_ATTEND_ACTIVITIES-EXTRN, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_HRTEM00_WEB_ATTEND_ACTIVITIES 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_HRTEM00_WEB_ATTEND_ACTIVITIES 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_HRTEM00_WEB_ATTEND_ACTIVITIES INTO WA_HRTEM00_WEB_ATTEND_ACTIVITIES.


*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 EVLNG
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_HRTEM00_WEB_ATTEND_ACTIVITIES-EVLNG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_HRTEM00_WEB_ATTEND_ACTIVITIES-EVLNG.
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_HRTEM00_WEB_ATTEND_ACTIVITIES_STR, 
PLVAR TYPE STRING,
EVEID TYPE STRING,
EVSHT TYPE STRING,
EVSTX TYPE STRING,
EVBEG TYPE STRING,
EVEND TYPE STRING,
EVLNG TYPE STRING,
LOCID TYPE STRING,
LOCTX TYPE STRING,
ISTAT TYPE STRING,
EXTRN TYPE STRING,
PRIOX TYPE STRING,
MANZL TYPE STRING,
BUDAT TYPE STRING,
SEQNR TYPE STRING,
KKOST TYPE STRING,
KWAER TYPE STRING,
DELET TYPE STRING,
LOCKM TYPE STRING,
HISTO TYPE STRING,
SPTXT TYPE STRING,
STATX TYPE STRING,
MOVTX TYPE STRING,
DELTX TYPE STRING,
SUBTY TYPE STRING,
PARTY TYPE STRING,
PARID TYPE STRING,
URLID TYPE STRING,
TGTID TYPE STRING,
STATS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_HRTEM00_WEB_ATTEND_ACTIVITIES_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_HRTEM00_WEB_ATTEND_ACTIVITIES_STR-PLVAR sy-vline 
WA_HRTEM00_WEB_ATTEND_ACTIVITIES_STR-EVEID sy-vline 
WA_HRTEM00_WEB_ATTEND_ACTIVITIES_STR-EVSHT sy-vline 
WA_HRTEM00_WEB_ATTEND_ACTIVITIES_STR-EVSTX sy-vline 
WA_HRTEM00_WEB_ATTEND_ACTIVITIES_STR-EVBEG sy-vline 
WA_HRTEM00_WEB_ATTEND_ACTIVITIES_STR-EVEND sy-vline 
WA_HRTEM00_WEB_ATTEND_ACTIVITIES_STR-EVLNG sy-vline 
WA_HRTEM00_WEB_ATTEND_ACTIVITIES_STR-LOCID sy-vline 
WA_HRTEM00_WEB_ATTEND_ACTIVITIES_STR-LOCTX sy-vline 
WA_HRTEM00_WEB_ATTEND_ACTIVITIES_STR-ISTAT sy-vline 
WA_HRTEM00_WEB_ATTEND_ACTIVITIES_STR-EXTRN sy-vline 
WA_HRTEM00_WEB_ATTEND_ACTIVITIES_STR-PRIOX sy-vline 
WA_HRTEM00_WEB_ATTEND_ACTIVITIES_STR-MANZL sy-vline 
WA_HRTEM00_WEB_ATTEND_ACTIVITIES_STR-BUDAT sy-vline 
WA_HRTEM00_WEB_ATTEND_ACTIVITIES_STR-SEQNR sy-vline 
WA_HRTEM00_WEB_ATTEND_ACTIVITIES_STR-KKOST sy-vline 
WA_HRTEM00_WEB_ATTEND_ACTIVITIES_STR-KWAER sy-vline 
WA_HRTEM00_WEB_ATTEND_ACTIVITIES_STR-DELET sy-vline 
WA_HRTEM00_WEB_ATTEND_ACTIVITIES_STR-LOCKM sy-vline 
WA_HRTEM00_WEB_ATTEND_ACTIVITIES_STR-HISTO sy-vline 
WA_HRTEM00_WEB_ATTEND_ACTIVITIES_STR-SPTXT sy-vline 
WA_HRTEM00_WEB_ATTEND_ACTIVITIES_STR-STATX sy-vline 
WA_HRTEM00_WEB_ATTEND_ACTIVITIES_STR-MOVTX sy-vline 
WA_HRTEM00_WEB_ATTEND_ACTIVITIES_STR-DELTX sy-vline 
WA_HRTEM00_WEB_ATTEND_ACTIVITIES_STR-SUBTY sy-vline 
WA_HRTEM00_WEB_ATTEND_ACTIVITIES_STR-PARTY sy-vline 
WA_HRTEM00_WEB_ATTEND_ACTIVITIES_STR-PARID sy-vline 
WA_HRTEM00_WEB_ATTEND_ACTIVITIES_STR-URLID sy-vline 
WA_HRTEM00_WEB_ATTEND_ACTIVITIES_STR-TGTID sy-vline 
WA_HRTEM00_WEB_ATTEND_ACTIVITIES_STR-STATS sy-vline      INTO ld_text SEPARATED BY SPACE.

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