ABAP Select data from SAP table PIQEVENTINFO into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PIQEVENTINFO 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 PIQEVENTINFO. 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 PIQEVENTINFO 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_PIQEVENTINFO TYPE STANDARD TABLE OF PIQEVENTINFO,
      WA_PIQEVENTINFO TYPE PIQEVENTINFO,
      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: <PIQEVENTINFO> TYPE PIQEVENTINFO.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PIQEVENTINFO
*  INTO TABLE @DATA(IT_PIQEVENTINFO2).
*--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_PIQEVENTINFO INDEX 1 INTO DATA(WA_PIQEVENTINFO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PIQEVENTINFO>-SE_OBJID = 1.
<PIQEVENTINFO>-OBJID = 1.
<PIQEVENTINFO>-OTYPE = 1.
<PIQEVENTINFO>-BEGDA = 1.
<PIQEVENTINFO>-ENDDA = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PIQEVENTINFO-ISTAT, sy-vline,
  WA_PIQEVENTINFO-SHORT, sy-vline,
  WA_PIQEVENTINFO-STEXT, sy-vline,
  WA_PIQEVENTINFO-LANGU, sy-vline,
  WA_PIQEVENTINFO-D_OBJID, sy-vline,
  WA_PIQEVENTINFO-D_SHORT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PIQEVENTINFO 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_PIQEVENTINFO 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_PIQEVENTINFO INTO WA_PIQEVENTINFO.


*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 LANGU
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_PIQEVENTINFO-LANGU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PIQEVENTINFO-LANGU.
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_PIQEVENTINFO_STR, 
SE_OBJID TYPE STRING,
OBJID TYPE STRING,
OTYPE TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,
ISTAT TYPE STRING,
SHORT TYPE STRING,
STEXT TYPE STRING,
LANGU TYPE STRING,
D_OBJID TYPE STRING,
D_SHORT TYPE STRING,
D_STEXT TYPE STRING,
LOCATION_OBJID TYPE STRING,
LOCATION_STEXT TYPE STRING,
LOCATION_SHORT TYPE STRING,
ROOM_OBJID TYPE STRING,
ROOM_SHORT TYPE STRING,
ROOM_STEXT TYPE STRING,
INSTR_OBJID TYPE STRING,
INSTR_OTYPE TYPE STRING,
INSTR_SHORT TYPE STRING,
INSTR_STEXT TYPE STRING,
BUILDING_TEXT TYPE STRING,
CAPACITY_MAX TYPE STRING,
CAPACITY_OPT TYPE STRING,
CAPACITY_MIN TYPE STRING,
CONTACTHOURS TYPE STRING,
CHOURUNIT TYPE STRING,
FREE_PLACES TYPE STRING,
BOOKED_PLACES TYPE STRING,
WAIT_PLACES TYPE STRING,
RESSOURCE TYPE STRING,
ORGANIZER_OBJID TYPE STRING,
ORGANIZER_STEXT TYPE STRING,
ORGANIZER_SHORT TYPE STRING,
MARK TYPE STRING,
ROOM_DESCRIBE TYPE STRING,
INSTR_DESCRIBE TYPE STRING,
SCHEDULE_DESCRIBE TYPE STRING,
LOCK_DEL_FOLLOWUP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PIQEVENTINFO_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_PIQEVENTINFO_STR-SE_OBJID sy-vline 
WA_PIQEVENTINFO_STR-OBJID sy-vline 
WA_PIQEVENTINFO_STR-OTYPE sy-vline 
WA_PIQEVENTINFO_STR-BEGDA sy-vline 
WA_PIQEVENTINFO_STR-ENDDA sy-vline 
WA_PIQEVENTINFO_STR-ISTAT sy-vline 
WA_PIQEVENTINFO_STR-SHORT sy-vline 
WA_PIQEVENTINFO_STR-STEXT sy-vline 
WA_PIQEVENTINFO_STR-LANGU sy-vline 
WA_PIQEVENTINFO_STR-D_OBJID sy-vline 
WA_PIQEVENTINFO_STR-D_SHORT sy-vline 
WA_PIQEVENTINFO_STR-D_STEXT sy-vline 
WA_PIQEVENTINFO_STR-LOCATION_OBJID sy-vline 
WA_PIQEVENTINFO_STR-LOCATION_STEXT sy-vline 
WA_PIQEVENTINFO_STR-LOCATION_SHORT sy-vline 
WA_PIQEVENTINFO_STR-ROOM_OBJID sy-vline 
WA_PIQEVENTINFO_STR-ROOM_SHORT sy-vline 
WA_PIQEVENTINFO_STR-ROOM_STEXT sy-vline 
WA_PIQEVENTINFO_STR-INSTR_OBJID sy-vline 
WA_PIQEVENTINFO_STR-INSTR_OTYPE sy-vline 
WA_PIQEVENTINFO_STR-INSTR_SHORT sy-vline 
WA_PIQEVENTINFO_STR-INSTR_STEXT sy-vline 
WA_PIQEVENTINFO_STR-BUILDING_TEXT sy-vline 
WA_PIQEVENTINFO_STR-CAPACITY_MAX sy-vline 
WA_PIQEVENTINFO_STR-CAPACITY_OPT sy-vline 
WA_PIQEVENTINFO_STR-CAPACITY_MIN sy-vline 
WA_PIQEVENTINFO_STR-CONTACTHOURS sy-vline 
WA_PIQEVENTINFO_STR-CHOURUNIT sy-vline 
WA_PIQEVENTINFO_STR-FREE_PLACES sy-vline 
WA_PIQEVENTINFO_STR-BOOKED_PLACES sy-vline 
WA_PIQEVENTINFO_STR-WAIT_PLACES sy-vline 
WA_PIQEVENTINFO_STR-RESSOURCE sy-vline 
WA_PIQEVENTINFO_STR-ORGANIZER_OBJID sy-vline 
WA_PIQEVENTINFO_STR-ORGANIZER_STEXT sy-vline 
WA_PIQEVENTINFO_STR-ORGANIZER_SHORT sy-vline 
WA_PIQEVENTINFO_STR-MARK sy-vline 
WA_PIQEVENTINFO_STR-ROOM_DESCRIBE sy-vline 
WA_PIQEVENTINFO_STR-INSTR_DESCRIBE sy-vline 
WA_PIQEVENTINFO_STR-SCHEDULE_DESCRIBE sy-vline 
WA_PIQEVENTINFO_STR-LOCK_DEL_FOLLOWUP sy-vline      INTO ld_text SEPARATED BY SPACE.

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