ABAP Select data from SAP table PIQCORR_STRU_CMS2_BOOKING into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PIQCORR_STRU_CMS2_BOOKING 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 PIQCORR_STRU_CMS2_BOOKING. 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 PIQCORR_STRU_CMS2_BOOKING 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_PIQCORR_STRU_CMS2_BOOKING TYPE STANDARD TABLE OF PIQCORR_STRU_CMS2_BOOKING,
      WA_PIQCORR_STRU_CMS2_BOOKING TYPE PIQCORR_STRU_CMS2_BOOKING,
      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: <PIQCORR_STRU_CMS2_BOOKING> TYPE PIQCORR_STRU_CMS2_BOOKING.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PIQCORR_STRU_CMS2_BOOKING.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PIQCORR_STRU_CMS2_BOOKING
  INTO TABLE IT_PIQCORR_STRU_CMS2_BOOKING.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PIQCORR_STRU_CMS2_BOOKING
*  INTO TABLE @DATA(IT_PIQCORR_STRU_CMS2_BOOKING2).
*--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_PIQCORR_STRU_CMS2_BOOKING INDEX 1 INTO DATA(WA_PIQCORR_STRU_CMS2_BOOKING2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PIQCORR_STRU_CMS2_BOOKING ASSIGNING <PIQCORR_STRU_CMS2_BOOKING>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PIQCORR_STRU_CMS2_BOOKING>-WA_BOOKING = 1.
<PIQCORR_STRU_CMS2_BOOKING>-PLVAR = 1.
<PIQCORR_STRU_CMS2_BOOKING>-OTYPE = 1.
<PIQCORR_STRU_CMS2_BOOKING>-OBJID = 1.
<PIQCORR_STRU_CMS2_BOOKING>-BEGDA = 1.

ENDLOOP.

LOOP AT IT_PIQCORR_STRU_CMS2_BOOKING INTO WA_PIQCORR_STRU_CMS2_BOOKING.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PIQCORR_STRU_CMS2_BOOKING-ENDDA, sy-vline,
  WA_PIQCORR_STRU_CMS2_BOOKING-SCLAS, sy-vline,
  WA_PIQCORR_STRU_CMS2_BOOKING-SOBID, sy-vline,
  WA_PIQCORR_STRU_CMS2_BOOKING-PRIOX, sy-vline,
  WA_PIQCORR_STRU_CMS2_BOOKING-SMSTATUS, sy-vline,
  WA_PIQCORR_STRU_CMS2_BOOKING-STORREASON, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PIQCORR_STRU_CMS2_BOOKING 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_PIQCORR_STRU_CMS2_BOOKING 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_PIQCORR_STRU_CMS2_BOOKING INTO WA_PIQCORR_STRU_CMS2_BOOKING.


*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 CUNIT, internal->external for field CPUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PIQCORR_STRU_CMS2_BOOKING-CPUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PIQCORR_STRU_CMS2_BOOKING-CPUNIT.
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_PIQCORR_STRU_CMS2_BOOKING_STR, 
WA_BOOKING TYPE STRING,
PLVAR TYPE STRING,
OTYPE TYPE STRING,
OBJID TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,
SCLAS TYPE STRING,
SOBID TYPE STRING,
PRIOX TYPE STRING,
SMSTATUS TYPE STRING,
STORREASON TYPE STRING,
STORDATE TYPE STRING,
CPATTEMP TYPE STRING,
CPGAINED TYPE STRING,
CPUNIT TYPE STRING,
NORM_VAL TYPE STRING,
BOOKDATE TYPE STRING,
BOOKTIME TYPE STRING,
SMRATING TYPE STRING,
CHARGEFREE TYPE STRING,
TRANSFERFLAG TYPE STRING,
PACKNUMBER TYPE STRING,
VARID TYPE STRING,
PERID TYPE STRING,
PERYR TYPE STRING,
ALT_SCALEID TYPE STRING,
ID TYPE STRING,
BOOKREASON TYPE STRING,
ANNULMENT TYPE STRING,
LOCKFLAG TYPE STRING,
COBOK TYPE STRING,
BOOKING_SUBGROUP_ID TYPE STRING,
ATTNO_TW TYPE STRING,
EVENT_OTYPE TYPE STRING,
EVENT_OBJID TYPE STRING,
EVENT_SHORT TYPE STRING,
EVENT_STEXT TYPE STRING,
T_IND_WORK TYPE STRING,
T_APPRAISAL TYPE STRING,
T_EVENT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PIQCORR_STRU_CMS2_BOOKING_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_PIQCORR_STRU_CMS2_BOOKING_STR-WA_BOOKING sy-vline 
WA_PIQCORR_STRU_CMS2_BOOKING_STR-PLVAR sy-vline 
WA_PIQCORR_STRU_CMS2_BOOKING_STR-OTYPE sy-vline 
WA_PIQCORR_STRU_CMS2_BOOKING_STR-OBJID sy-vline 
WA_PIQCORR_STRU_CMS2_BOOKING_STR-BEGDA sy-vline 
WA_PIQCORR_STRU_CMS2_BOOKING_STR-ENDDA sy-vline 
WA_PIQCORR_STRU_CMS2_BOOKING_STR-SCLAS sy-vline 
WA_PIQCORR_STRU_CMS2_BOOKING_STR-SOBID sy-vline 
WA_PIQCORR_STRU_CMS2_BOOKING_STR-PRIOX sy-vline 
WA_PIQCORR_STRU_CMS2_BOOKING_STR-SMSTATUS sy-vline 
WA_PIQCORR_STRU_CMS2_BOOKING_STR-STORREASON sy-vline 
WA_PIQCORR_STRU_CMS2_BOOKING_STR-STORDATE sy-vline 
WA_PIQCORR_STRU_CMS2_BOOKING_STR-CPATTEMP sy-vline 
WA_PIQCORR_STRU_CMS2_BOOKING_STR-CPGAINED sy-vline 
WA_PIQCORR_STRU_CMS2_BOOKING_STR-CPUNIT sy-vline 
WA_PIQCORR_STRU_CMS2_BOOKING_STR-NORM_VAL sy-vline 
WA_PIQCORR_STRU_CMS2_BOOKING_STR-BOOKDATE sy-vline 
WA_PIQCORR_STRU_CMS2_BOOKING_STR-BOOKTIME sy-vline 
WA_PIQCORR_STRU_CMS2_BOOKING_STR-SMRATING sy-vline 
WA_PIQCORR_STRU_CMS2_BOOKING_STR-CHARGEFREE sy-vline 
WA_PIQCORR_STRU_CMS2_BOOKING_STR-TRANSFERFLAG sy-vline 
WA_PIQCORR_STRU_CMS2_BOOKING_STR-PACKNUMBER sy-vline 
WA_PIQCORR_STRU_CMS2_BOOKING_STR-VARID sy-vline 
WA_PIQCORR_STRU_CMS2_BOOKING_STR-PERID sy-vline 
WA_PIQCORR_STRU_CMS2_BOOKING_STR-PERYR sy-vline 
WA_PIQCORR_STRU_CMS2_BOOKING_STR-ALT_SCALEID sy-vline 
WA_PIQCORR_STRU_CMS2_BOOKING_STR-ID sy-vline 
WA_PIQCORR_STRU_CMS2_BOOKING_STR-BOOKREASON sy-vline 
WA_PIQCORR_STRU_CMS2_BOOKING_STR-ANNULMENT sy-vline 
WA_PIQCORR_STRU_CMS2_BOOKING_STR-LOCKFLAG sy-vline 
WA_PIQCORR_STRU_CMS2_BOOKING_STR-COBOK sy-vline 
WA_PIQCORR_STRU_CMS2_BOOKING_STR-BOOKING_SUBGROUP_ID sy-vline 
WA_PIQCORR_STRU_CMS2_BOOKING_STR-ATTNO_TW sy-vline 
WA_PIQCORR_STRU_CMS2_BOOKING_STR-EVENT_OTYPE sy-vline 
WA_PIQCORR_STRU_CMS2_BOOKING_STR-EVENT_OBJID sy-vline 
WA_PIQCORR_STRU_CMS2_BOOKING_STR-EVENT_SHORT sy-vline 
WA_PIQCORR_STRU_CMS2_BOOKING_STR-EVENT_STEXT sy-vline 
WA_PIQCORR_STRU_CMS2_BOOKING_STR-T_IND_WORK sy-vline 
WA_PIQCORR_STRU_CMS2_BOOKING_STR-T_APPRAISAL sy-vline 
WA_PIQCORR_STRU_CMS2_BOOKING_STR-T_EVENT sy-vline      INTO ld_text SEPARATED BY SPACE.

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