ABAP Select data from SAP table /SAPPSSRM/S_POITM_NOVATION into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /SAPPSSRM/S_POITM_NOVATION 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 /SAPPSSRM/S_POITM_NOVATION. 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 /SAPPSSRM/S_POITM_NOVATION 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_/SAPPSSRM/S_POITM_NOVATION TYPE STANDARD TABLE OF /SAPPSSRM/S_POITM_NOVATION,
      WA_/SAPPSSRM/S_POITM_NOVATION TYPE /SAPPSSRM/S_POITM_NOVATION,
      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: </SAPPSSRM/S_POITM_NOVATION> TYPE /SAPPSSRM/S_POITM_NOVATION.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /SAPPSSRM/S_POITM_NOVATION
  INTO TABLE IT_/SAPPSSRM/S_POITM_NOVATION.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SAPPSSRM/S_POITM_NOVATION
*  INTO TABLE @DATA(IT_/SAPPSSRM/S_POITM_NOVATION2).
*--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_/SAPPSSRM/S_POITM_NOVATION INDEX 1 INTO DATA(WA_/SAPPSSRM/S_POITM_NOVATION2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/SAPPSSRM/S_POITM_NOVATION ASSIGNING </SAPPSSRM/S_POITM_NOVATION>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SAPPSSRM/S_POITM_NOVATION>-PO_OBJECT_ID = 1.
</SAPPSSRM/S_POITM_NOVATION>-PO_GUID = 1.
</SAPPSSRM/S_POITM_NOVATION>-PO_LONGNUM = 1.
</SAPPSSRM/S_POITM_NOVATION>-PO_POSITION = 1.
</SAPPSSRM/S_POITM_NOVATION>-PO_ITEM_GUID = 1.

ENDLOOP.

LOOP AT IT_/SAPPSSRM/S_POITM_NOVATION INTO WA_/SAPPSSRM/S_POITM_NOVATION.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SAPPSSRM/S_POITM_NOVATION-MATERIAL_NO, sy-vline,
  WA_/SAPPSSRM/S_POITM_NOVATION-DESCRIPTION, sy-vline,
  WA_/SAPPSSRM/S_POITM_NOVATION-CONTRACT_NO, sy-vline,
  WA_/SAPPSSRM/S_POITM_NOVATION-CNTRCT_LONGNUM, sy-vline,
  WA_/SAPPSSRM/S_POITM_NOVATION-VPER_START, sy-vline,
  WA_/SAPPSSRM/S_POITM_NOVATION-VPER_END, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SAPPSSRM/S_POITM_NOVATION 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_/SAPPSSRM/S_POITM_NOVATION 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_/SAPPSSRM/S_POITM_NOVATION INTO WA_/SAPPSSRM/S_POITM_NOVATION.


*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 ALPHA, internal->external for field PO_OBJECT_ID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/SAPPSSRM/S_POITM_NOVATION-PO_OBJECT_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPPSSRM/S_POITM_NOVATION-PO_OBJECT_ID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CONTRACT_NO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/SAPPSSRM/S_POITM_NOVATION-CONTRACT_NO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPPSSRM/S_POITM_NOVATION-CONTRACT_NO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/SAPPSSRM/S_POITM_NOVATION-UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPPSSRM/S_POITM_NOVATION-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_/SAPPSSRM/S_POITM_NOVATION_STR, 
PO_OBJECT_ID TYPE STRING,
PO_GUID TYPE STRING,
PO_LONGNUM TYPE STRING,
PO_POSITION TYPE STRING,
PO_ITEM_GUID TYPE STRING,
MATERIAL_NO TYPE STRING,
DESCRIPTION TYPE STRING,
CONTRACT_NO TYPE STRING,
CNTRCT_LONGNUM TYPE STRING,
VPER_START TYPE STRING,
VPER_END TYPE STRING,
CATEGORY_ID TYPE STRING,
MANU_PROD TYPE STRING,
MFR_NO_EXT TYPE STRING,
QUANTITY TYPE STRING,
UNIT TYPE STRING,
PRICE TYPE STRING,
CURRENCY TYPE STRING,
DELIV_DATE TYPE STRING,
PS_US01 TYPE STRING,
PS_US02 TYPE STRING,
PS_US03 TYPE STRING,
PS_US04 TYPE STRING,
PS_US05 TYPE STRING,
PS_US06 TYPE STRING,
PS_US07 TYPE STRING,
PS_US08 TYPE STRING,
PS_US09 TYPE STRING,
PS_US10 TYPE STRING,
PS_US01_DATE TYPE STRING,
PS_US02_DATE TYPE STRING,
PS_US03_DATE TYPE STRING,
PS_US04_DATE TYPE STRING,
PS_US05_DATE TYPE STRING,
PS_US06_DATE TYPE STRING,
PS_US07_DATE TYPE STRING,
PS_US08_DATE TYPE STRING,
PS_US09_DATE TYPE STRING,
PS_US10_DATE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SAPPSSRM/S_POITM_NOVATION_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_/SAPPSSRM/S_POITM_NOVATION_STR-PO_OBJECT_ID sy-vline 
WA_/SAPPSSRM/S_POITM_NOVATION_STR-PO_GUID sy-vline 
WA_/SAPPSSRM/S_POITM_NOVATION_STR-PO_LONGNUM sy-vline 
WA_/SAPPSSRM/S_POITM_NOVATION_STR-PO_POSITION sy-vline 
WA_/SAPPSSRM/S_POITM_NOVATION_STR-PO_ITEM_GUID sy-vline 
WA_/SAPPSSRM/S_POITM_NOVATION_STR-MATERIAL_NO sy-vline 
WA_/SAPPSSRM/S_POITM_NOVATION_STR-DESCRIPTION sy-vline 
WA_/SAPPSSRM/S_POITM_NOVATION_STR-CONTRACT_NO sy-vline 
WA_/SAPPSSRM/S_POITM_NOVATION_STR-CNTRCT_LONGNUM sy-vline 
WA_/SAPPSSRM/S_POITM_NOVATION_STR-VPER_START sy-vline 
WA_/SAPPSSRM/S_POITM_NOVATION_STR-VPER_END sy-vline 
WA_/SAPPSSRM/S_POITM_NOVATION_STR-CATEGORY_ID sy-vline 
WA_/SAPPSSRM/S_POITM_NOVATION_STR-MANU_PROD sy-vline 
WA_/SAPPSSRM/S_POITM_NOVATION_STR-MFR_NO_EXT sy-vline 
WA_/SAPPSSRM/S_POITM_NOVATION_STR-QUANTITY sy-vline 
WA_/SAPPSSRM/S_POITM_NOVATION_STR-UNIT sy-vline 
WA_/SAPPSSRM/S_POITM_NOVATION_STR-PRICE sy-vline 
WA_/SAPPSSRM/S_POITM_NOVATION_STR-CURRENCY sy-vline 
WA_/SAPPSSRM/S_POITM_NOVATION_STR-DELIV_DATE sy-vline 
WA_/SAPPSSRM/S_POITM_NOVATION_STR-PS_US01 sy-vline 
WA_/SAPPSSRM/S_POITM_NOVATION_STR-PS_US02 sy-vline 
WA_/SAPPSSRM/S_POITM_NOVATION_STR-PS_US03 sy-vline 
WA_/SAPPSSRM/S_POITM_NOVATION_STR-PS_US04 sy-vline 
WA_/SAPPSSRM/S_POITM_NOVATION_STR-PS_US05 sy-vline 
WA_/SAPPSSRM/S_POITM_NOVATION_STR-PS_US06 sy-vline 
WA_/SAPPSSRM/S_POITM_NOVATION_STR-PS_US07 sy-vline 
WA_/SAPPSSRM/S_POITM_NOVATION_STR-PS_US08 sy-vline 
WA_/SAPPSSRM/S_POITM_NOVATION_STR-PS_US09 sy-vline 
WA_/SAPPSSRM/S_POITM_NOVATION_STR-PS_US10 sy-vline 
WA_/SAPPSSRM/S_POITM_NOVATION_STR-PS_US01_DATE sy-vline 
WA_/SAPPSSRM/S_POITM_NOVATION_STR-PS_US02_DATE sy-vline 
WA_/SAPPSSRM/S_POITM_NOVATION_STR-PS_US03_DATE sy-vline 
WA_/SAPPSSRM/S_POITM_NOVATION_STR-PS_US04_DATE sy-vline 
WA_/SAPPSSRM/S_POITM_NOVATION_STR-PS_US05_DATE sy-vline 
WA_/SAPPSSRM/S_POITM_NOVATION_STR-PS_US06_DATE sy-vline 
WA_/SAPPSSRM/S_POITM_NOVATION_STR-PS_US07_DATE sy-vline 
WA_/SAPPSSRM/S_POITM_NOVATION_STR-PS_US08_DATE sy-vline 
WA_/SAPPSSRM/S_POITM_NOVATION_STR-PS_US09_DATE sy-vline 
WA_/SAPPSSRM/S_POITM_NOVATION_STR-PS_US10_DATE sy-vline      INTO ld_text SEPARATED BY SPACE.

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