ABAP Select data from SAP table PIQAGR_STRUEVENT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PIQAGR_STRUEVENT
*  INTO TABLE @DATA(IT_PIQAGR_STRUEVENT2).
*--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_PIQAGR_STRUEVENT INDEX 1 INTO DATA(WA_PIQAGR_STRUEVENT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PIQAGR_STRUEVENT>-POS_ID = 1.
<PIQAGR_STRUEVENT>-PLVAR = 1.
<PIQAGR_STRUEVENT>-OTYPE = 1.
<PIQAGR_STRUEVENT>-OBJID = 1.
<PIQAGR_STRUEVENT>-GRADESYM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PIQAGR_STRUEVENT-GRADE, sy-vline,
  WA_PIQAGR_STRUEVENT-GRADESCALE, sy-vline,
  WA_PIQAGR_STRUEVENT-ACPI_VALUE, sy-vline,
  WA_PIQAGR_STRUEVENT-ACPI_UNIT, sy-vline,
  WA_PIQAGR_STRUEVENT-ACADPI_DEGRELY, sy-vline,
  WA_PIQAGR_STRUEVENT-WEIGHTING, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PIQAGR_STRUEVENT 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_PIQAGR_STRUEVENT 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_PIQAGR_STRUEVENT INTO WA_PIQAGR_STRUEVENT.


*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 ACPI_UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PIQAGR_STRUEVENT-ACPI_UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PIQAGR_STRUEVENT-ACPI_UNIT.
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_PIQAGR_STRUEVENT_STR, 
POS_ID TYPE STRING,
PLVAR TYPE STRING,
OTYPE TYPE STRING,
OBJID TYPE STRING,
GRADESYM TYPE STRING,
GRADE TYPE STRING,
GRADESCALE TYPE STRING,
ACPI_VALUE TYPE STRING,
ACPI_UNIT TYPE STRING,
ACADPI_DEGRELY TYPE STRING,
WEIGHTING TYPE STRING,
VALUETUPLE TYPE STRING,
HANDLE TYPE STRING,
MANUAL TYPE STRING,
POSI TYPE STRING,
KEYFIGURE TYPE STRING,
IOSEM TYPE STRING,
ATTNO TYPE STRING,
STEXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PIQAGR_STRUEVENT_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_PIQAGR_STRUEVENT_STR-POS_ID sy-vline 
WA_PIQAGR_STRUEVENT_STR-PLVAR sy-vline 
WA_PIQAGR_STRUEVENT_STR-OTYPE sy-vline 
WA_PIQAGR_STRUEVENT_STR-OBJID sy-vline 
WA_PIQAGR_STRUEVENT_STR-GRADESYM sy-vline 
WA_PIQAGR_STRUEVENT_STR-GRADE sy-vline 
WA_PIQAGR_STRUEVENT_STR-GRADESCALE sy-vline 
WA_PIQAGR_STRUEVENT_STR-ACPI_VALUE sy-vline 
WA_PIQAGR_STRUEVENT_STR-ACPI_UNIT sy-vline 
WA_PIQAGR_STRUEVENT_STR-ACADPI_DEGRELY sy-vline 
WA_PIQAGR_STRUEVENT_STR-WEIGHTING sy-vline 
WA_PIQAGR_STRUEVENT_STR-VALUETUPLE sy-vline 
WA_PIQAGR_STRUEVENT_STR-HANDLE sy-vline 
WA_PIQAGR_STRUEVENT_STR-MANUAL sy-vline 
WA_PIQAGR_STRUEVENT_STR-POSI sy-vline 
WA_PIQAGR_STRUEVENT_STR-KEYFIGURE sy-vline 
WA_PIQAGR_STRUEVENT_STR-IOSEM sy-vline 
WA_PIQAGR_STRUEVENT_STR-ATTNO sy-vline 
WA_PIQAGR_STRUEVENT_STR-STEXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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