ABAP Select data from SAP table P2IE_IEUSC into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP P2IE_IEUSC 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 P2IE_IEUSC. 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 P2IE_IEUSC 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_P2IE_IEUSC TYPE STANDARD TABLE OF P2IE_IEUSC,
      WA_P2IE_IEUSC TYPE P2IE_IEUSC,
      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: <P2IE_IEUSC> TYPE P2IE_IEUSC.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P2IE_IEUSC.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P2IE_IEUSC
  INTO TABLE IT_P2IE_IEUSC.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P2IE_IEUSC
*  INTO TABLE @DATA(IT_P2IE_IEUSC2).
*--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_P2IE_IEUSC INDEX 1 INTO DATA(WA_P2IE_IEUSC2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P2IE_IEUSC ASSIGNING <P2IE_IEUSC>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P2IE_IEUSC>-MANDT = 1.
<P2IE_IEUSC>-DCT_PERNR = 1.
<P2IE_IEUSC>-DCT_SEQNR = 1.
<P2IE_IEUSC>-DCT_ROWID = 1.
<P2IE_IEUSC>-BEGDA = 1.

ENDLOOP.

LOOP AT IT_P2IE_IEUSC INTO WA_P2IE_IEUSC.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P2IE_IEUSC-ENDDA, sy-vline,
  WA_P2IE_IEUSC-USBAS, sy-vline,
  WA_P2IE_IEUSC-UWIHF, sy-vline,
  WA_P2IE_IEUSC-UEMGY, sy-vline,
  WA_P2IE_IEUSC-URAT1, sy-vline,
  WA_P2IE_IEUSC-URAT2, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P2IE_IEUSC 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_P2IE_IEUSC 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_P2IE_IEUSC INTO WA_P2IE_IEUSC.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_P2IE_IEUSC_STR, 
MANDT TYPE STRING,
DCT_PERNR TYPE STRING,
DCT_SEQNR TYPE STRING,
DCT_ROWID TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,
USBAS TYPE STRING,
UWIHF TYPE STRING,
UEMGY TYPE STRING,
URAT1 TYPE STRING,
URAT2 TYPE STRING,
URAT3 TYPE STRING,
URAT4 TYPE STRING,
URAT5 TYPE STRING,
USCP1 TYPE STRING,
UTRY1 TYPE STRING,
USCP2 TYPE STRING,
UTRY2 TYPE STRING,
ULVFG TYPE STRING,
USBS1 TYPE STRING,
USPER TYPE STRING,
P45UY TYPE STRING,
P45UD TYPE STRING,
WAERS TYPE STRING,
TXBAS TYPE STRING,
USCP3 TYPE STRING,
UTRY3 TYPE STRING,
USCP4 TYPE STRING,
UTRY4 TYPE STRING,
UNW53 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P2IE_IEUSC_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_P2IE_IEUSC_STR-MANDT sy-vline 
WA_P2IE_IEUSC_STR-DCT_PERNR sy-vline 
WA_P2IE_IEUSC_STR-DCT_SEQNR sy-vline 
WA_P2IE_IEUSC_STR-DCT_ROWID sy-vline 
WA_P2IE_IEUSC_STR-BEGDA sy-vline 
WA_P2IE_IEUSC_STR-ENDDA sy-vline 
WA_P2IE_IEUSC_STR-USBAS sy-vline 
WA_P2IE_IEUSC_STR-UWIHF sy-vline 
WA_P2IE_IEUSC_STR-UEMGY sy-vline 
WA_P2IE_IEUSC_STR-URAT1 sy-vline 
WA_P2IE_IEUSC_STR-URAT2 sy-vline 
WA_P2IE_IEUSC_STR-URAT3 sy-vline 
WA_P2IE_IEUSC_STR-URAT4 sy-vline 
WA_P2IE_IEUSC_STR-URAT5 sy-vline 
WA_P2IE_IEUSC_STR-USCP1 sy-vline 
WA_P2IE_IEUSC_STR-UTRY1 sy-vline 
WA_P2IE_IEUSC_STR-USCP2 sy-vline 
WA_P2IE_IEUSC_STR-UTRY2 sy-vline 
WA_P2IE_IEUSC_STR-ULVFG sy-vline 
WA_P2IE_IEUSC_STR-USBS1 sy-vline 
WA_P2IE_IEUSC_STR-USPER sy-vline 
WA_P2IE_IEUSC_STR-P45UY sy-vline 
WA_P2IE_IEUSC_STR-P45UD sy-vline 
WA_P2IE_IEUSC_STR-WAERS sy-vline 
WA_P2IE_IEUSC_STR-TXBAS sy-vline 
WA_P2IE_IEUSC_STR-USCP3 sy-vline 
WA_P2IE_IEUSC_STR-UTRY3 sy-vline 
WA_P2IE_IEUSC_STR-USCP4 sy-vline 
WA_P2IE_IEUSC_STR-UTRY4 sy-vline 
WA_P2IE_IEUSC_STR-UNW53 sy-vline      INTO ld_text SEPARATED BY SPACE.

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