ABAP Select data from SAP table POPTIONALITY into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM POPTIONALITY
*  INTO TABLE @DATA(IT_POPTIONALITY2).
*--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_POPTIONALITY INDEX 1 INTO DATA(WA_POPTIONALITY2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<POPTIONALITY>-MANDT = 1.
<POPTIONALITY>-TRADINGCONTRACTNUMBER = 1.
<POPTIONALITY>-TRADINGCONTRACTITEM = 1.
<POPTIONALITY>-ACMCONTRACTOPTIONSID = 1.
<POPTIONALITY>-ACMCONTRACTOPTIONSVALUETYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_POPTIONALITY-ACMCONTRACTOPTIONSSEQUENCENMBR, sy-vline,
  WA_POPTIONALITY-ACMCONTRACTOPTIONBUYERSELLER, sy-vline,
  WA_POPTIONALITY-ACMTRADINGCONTRACTOPTIONSTYPE, sy-vline,
  WA_POPTIONALITY-CONTRACTOPTIONSDECLARATIONDATE, sy-vline,
  WA_POPTIONALITY-ACMSETTLMTOPTIONSCATDESC, sy-vline,
  WA_POPTIONALITY-ACMCONTRACTOPTIONSCROPSEASONID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_POPTIONALITY 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_POPTIONALITY 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_POPTIONALITY INTO WA_POPTIONALITY.


*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 TRADINGCONTRACTNUMBER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_POPTIONALITY-TRADINGCONTRACTNUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_POPTIONALITY-TRADINGCONTRACTNUMBER.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit CUNIT, internal->external for field ACMCONTRACTOPTIONSUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_POPTIONALITY-ACMCONTRACTOPTIONSUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_POPTIONALITY-ACMCONTRACTOPTIONSUNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field ACMCONTRACTOPTIONSTIMEUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_POPTIONALITY-ACMCONTRACTOPTIONSTIMEUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_POPTIONALITY-ACMCONTRACTOPTIONSTIMEUNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field ACMCONTRACTOPTIONSPREMDISCUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_POPTIONALITY-ACMCONTRACTOPTIONSPREMDISCUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_POPTIONALITY-ACMCONTRACTOPTIONSPREMDISCUNIT.
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_POPTIONALITY_STR, 
MANDT TYPE STRING,
TRADINGCONTRACTNUMBER TYPE STRING,
TRADINGCONTRACTITEM TYPE STRING,
ACMCONTRACTOPTIONSID TYPE STRING,
ACMCONTRACTOPTIONSVALUETYPE TYPE STRING,
ACMCONTRACTOPTIONSSEQUENCENMBR TYPE STRING,
ACMCONTRACTOPTIONBUYERSELLER TYPE STRING,
ACMTRADINGCONTRACTOPTIONSTYPE TYPE STRING,
CONTRACTOPTIONSDECLARATIONDATE TYPE STRING,
ACMSETTLMTOPTIONSCATDESC TYPE STRING,
ACMCONTRACTOPTIONSCROPSEASONID TYPE STRING,
ACMCONTROPTIONSSOURCELOCATION TYPE STRING,
ACMMODEOFTRANSPORT TYPE STRING,
ACMCONTROPTIONSMNSOFTRANSPORT TYPE STRING,
ACMCONTRACTOPTIONSVALUE TYPE STRING,
ACMCONTRACTOPTIONSUNIT TYPE STRING,
ACMCONTRACTOPTIONSTIMEUNIT TYPE STRING,
ACMCONTRACTOPTIONSPREMDISCTYPE TYPE STRING,
ACMCONTRACTOPTIONSPREMDISCVAL TYPE STRING,
ACMCONTRACTOPTIONSPREMDISCCRCY TYPE STRING,
ACMCONTRACTOPTIONSPREMDISCQTY TYPE STRING,
ACMCONTRACTOPTIONSPREMDISCUNIT TYPE STRING,
ACMISDEFAULTCONTRACTOPTIONS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_POPTIONALITY_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_POPTIONALITY_STR-MANDT sy-vline 
WA_POPTIONALITY_STR-TRADINGCONTRACTNUMBER sy-vline 
WA_POPTIONALITY_STR-TRADINGCONTRACTITEM sy-vline 
WA_POPTIONALITY_STR-ACMCONTRACTOPTIONSID sy-vline 
WA_POPTIONALITY_STR-ACMCONTRACTOPTIONSVALUETYPE sy-vline 
WA_POPTIONALITY_STR-ACMCONTRACTOPTIONSSEQUENCENMBR sy-vline 
WA_POPTIONALITY_STR-ACMCONTRACTOPTIONBUYERSELLER sy-vline 
WA_POPTIONALITY_STR-ACMTRADINGCONTRACTOPTIONSTYPE sy-vline 
WA_POPTIONALITY_STR-CONTRACTOPTIONSDECLARATIONDATE sy-vline 
WA_POPTIONALITY_STR-ACMSETTLMTOPTIONSCATDESC sy-vline 
WA_POPTIONALITY_STR-ACMCONTRACTOPTIONSCROPSEASONID sy-vline 
WA_POPTIONALITY_STR-ACMCONTROPTIONSSOURCELOCATION sy-vline 
WA_POPTIONALITY_STR-ACMMODEOFTRANSPORT sy-vline 
WA_POPTIONALITY_STR-ACMCONTROPTIONSMNSOFTRANSPORT sy-vline 
WA_POPTIONALITY_STR-ACMCONTRACTOPTIONSVALUE sy-vline 
WA_POPTIONALITY_STR-ACMCONTRACTOPTIONSUNIT sy-vline 
WA_POPTIONALITY_STR-ACMCONTRACTOPTIONSTIMEUNIT sy-vline 
WA_POPTIONALITY_STR-ACMCONTRACTOPTIONSPREMDISCTYPE sy-vline 
WA_POPTIONALITY_STR-ACMCONTRACTOPTIONSPREMDISCVAL sy-vline 
WA_POPTIONALITY_STR-ACMCONTRACTOPTIONSPREMDISCCRCY sy-vline 
WA_POPTIONALITY_STR-ACMCONTRACTOPTIONSPREMDISCQTY sy-vline 
WA_POPTIONALITY_STR-ACMCONTRACTOPTIONSPREMDISCUNIT sy-vline 
WA_POPTIONALITY_STR-ACMISDEFAULTCONTRACTOPTIONS sy-vline      INTO ld_text SEPARATED BY SPACE.

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