ABAP Select data from SAP table PIQPP_EV_AW into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PIQPP_EV_AW
*  INTO TABLE @DATA(IT_PIQPP_EV_AW2).
*--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_PIQPP_EV_AW INDEX 1 INTO DATA(WA_PIQPP_EV_AW2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PIQPP_EV_AW>-ACADEMICWORKID = 1.
<PIQPP_EV_AW>-AGRID = 1.
<PIQPP_EV_AW>-AWOTYPE = 1.
<PIQPP_EV_AW>-AWOBJID = 1.
<PIQPP_EV_AW>-AWBEGDATE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PIQPP_EV_AW-AWENDDATE, sy-vline,
  WA_PIQPP_EV_AW-AWLOCKFLAG, sy-vline,
  WA_PIQPP_EV_AW-AWSTATUS, sy-vline,
  WA_PIQPP_EV_AW-CANCELREASON, sy-vline,
  WA_PIQPP_EV_AW-CANCELDATE, sy-vline,
  WA_PIQPP_EV_AW-BOOKDATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PIQPP_EV_AW 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_PIQPP_EV_AW 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_PIQPP_EV_AW INTO WA_PIQPP_EV_AW.


*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_PIQPP_EV_AW-CPUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PIQPP_EV_AW-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_PIQPP_EV_AW_STR, 
ACADEMICWORKID TYPE STRING,
AGRID TYPE STRING,
AWOTYPE TYPE STRING,
AWOBJID TYPE STRING,
AWBEGDATE TYPE STRING,
AWENDDATE TYPE STRING,
AWLOCKFLAG TYPE STRING,
AWSTATUS TYPE STRING,
CANCELREASON TYPE STRING,
CANCELDATE TYPE STRING,
BOOKDATE TYPE STRING,
AWRATING TYPE STRING,
CHARGEFREE TYPE STRING,
TRANSFERFLAG TYPE STRING,
EVENTPACKAGE TYPE STRING,
ACAD_SESSION TYPE STRING,
ACAD_YEAR TYPE STRING,
BOOKREASON TYPE STRING,
ANNULMENT TYPE STRING,
COBOK TYPE STRING,
PRIOX TYPE STRING,
ALT_SCALEID TYPE STRING,
AGRTYPE TYPE STRING,
AGRSTAT TYPE STRING,
GRADESYMBOL TYPE STRING,
GRADE TYPE STRING,
GRADESCALE TYPE STRING,
AGRNOTRATED TYPE STRING,
AGRDATE TYPE STRING,
AGRCOMPLETED TYPE STRING,
CPATTEMP TYPE STRING,
CPEARNED TYPE STRING,
CPGRADED TYPE STRING,
CPUNIT TYPE STRING,
AGRREMARK TYPE STRING,
AGRBEGDA TYPE STRING,
AGRENDDA TYPE STRING,
ARCH_STATUS TYPE STRING,
NOTEID TYPE STRING,
GRADECHANGED TYPE STRING,
PUBLICATIONDATE TYPE STRING,
AWTEXT TYPE STRING,
ATTNO_TW TYPE STRING,
PROG_ULIST_INS TYPE STRING,
PROGTYPE_ULIST_INS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PIQPP_EV_AW_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_PIQPP_EV_AW_STR-ACADEMICWORKID sy-vline 
WA_PIQPP_EV_AW_STR-AGRID sy-vline 
WA_PIQPP_EV_AW_STR-AWOTYPE sy-vline 
WA_PIQPP_EV_AW_STR-AWOBJID sy-vline 
WA_PIQPP_EV_AW_STR-AWBEGDATE sy-vline 
WA_PIQPP_EV_AW_STR-AWENDDATE sy-vline 
WA_PIQPP_EV_AW_STR-AWLOCKFLAG sy-vline 
WA_PIQPP_EV_AW_STR-AWSTATUS sy-vline 
WA_PIQPP_EV_AW_STR-CANCELREASON sy-vline 
WA_PIQPP_EV_AW_STR-CANCELDATE sy-vline 
WA_PIQPP_EV_AW_STR-BOOKDATE sy-vline 
WA_PIQPP_EV_AW_STR-AWRATING sy-vline 
WA_PIQPP_EV_AW_STR-CHARGEFREE sy-vline 
WA_PIQPP_EV_AW_STR-TRANSFERFLAG sy-vline 
WA_PIQPP_EV_AW_STR-EVENTPACKAGE sy-vline 
WA_PIQPP_EV_AW_STR-ACAD_SESSION sy-vline 
WA_PIQPP_EV_AW_STR-ACAD_YEAR sy-vline 
WA_PIQPP_EV_AW_STR-BOOKREASON sy-vline 
WA_PIQPP_EV_AW_STR-ANNULMENT sy-vline 
WA_PIQPP_EV_AW_STR-COBOK sy-vline 
WA_PIQPP_EV_AW_STR-PRIOX sy-vline 
WA_PIQPP_EV_AW_STR-ALT_SCALEID sy-vline 
WA_PIQPP_EV_AW_STR-AGRTYPE sy-vline 
WA_PIQPP_EV_AW_STR-AGRSTAT sy-vline 
WA_PIQPP_EV_AW_STR-GRADESYMBOL sy-vline 
WA_PIQPP_EV_AW_STR-GRADE sy-vline 
WA_PIQPP_EV_AW_STR-GRADESCALE sy-vline 
WA_PIQPP_EV_AW_STR-AGRNOTRATED sy-vline 
WA_PIQPP_EV_AW_STR-AGRDATE sy-vline 
WA_PIQPP_EV_AW_STR-AGRCOMPLETED sy-vline 
WA_PIQPP_EV_AW_STR-CPATTEMP sy-vline 
WA_PIQPP_EV_AW_STR-CPEARNED sy-vline 
WA_PIQPP_EV_AW_STR-CPGRADED sy-vline 
WA_PIQPP_EV_AW_STR-CPUNIT sy-vline 
WA_PIQPP_EV_AW_STR-AGRREMARK sy-vline 
WA_PIQPP_EV_AW_STR-AGRBEGDA sy-vline 
WA_PIQPP_EV_AW_STR-AGRENDDA sy-vline 
WA_PIQPP_EV_AW_STR-ARCH_STATUS sy-vline 
WA_PIQPP_EV_AW_STR-NOTEID sy-vline 
WA_PIQPP_EV_AW_STR-GRADECHANGED sy-vline 
WA_PIQPP_EV_AW_STR-PUBLICATIONDATE sy-vline 
WA_PIQPP_EV_AW_STR-AWTEXT sy-vline 
WA_PIQPP_EV_AW_STR-ATTNO_TW sy-vline 
WA_PIQPP_EV_AW_STR-PROG_ULIST_INS sy-vline 
WA_PIQPP_EV_AW_STR-PROGTYPE_ULIST_INS sy-vline      INTO ld_text SEPARATED BY SPACE.

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