ABAP Select data from SAP table PPOACINFER into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PPOACINFER
*  INTO TABLE @DATA(IT_PPOACINFER2).
*--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_PPOACINFER INDEX 1 INTO DATA(WA_PPOACINFER2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PPOACINFER>-MANDT = 1.
<PPOACINFER>-ACCRUALENGINEAPPLICATION = 1.
<PPOACINFER>-COMPANYCODE = 1.
<PPOACINFER>-ACCRUALOBJECT = 1.
<PPOACINFER>-ACCRUALSUBOBJECT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PPOACINFER-ACCRUALITEMTYPE, sy-vline,
  WA_PPOACINFER-LEDGER, sy-vline,
  WA_PPOACINFER-ACCRUALPERIODENDDATE, sy-vline,
  WA_PPOACINFER-LEDGERGROUP, sy-vline,
  WA_PPOACINFER-ISMACHINELEARNINGPROPOSED, sy-vline,
  WA_PPOACINFER-FISCALYEARVARIANT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PPOACINFER 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_PPOACINFER 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_PPOACINFER INTO WA_PPOACINFER.


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

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

*Conversion exit ABPSN, internal->external for field WBSELEMENT
CALL FUNCTION 'CONVERSION_EXIT_ABPSN_OUTPUT'
  EXPORTING
    input =                      WA_PPOACINFER-WBSELEMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPOACINFER-WBSELEMENT.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit AUART, internal->external for field SALESDOCUMENTTYPE
CALL FUNCTION 'CONVERSION_EXIT_AUART_OUTPUT'
  EXPORTING
    input =                      WA_PPOACINFER-SALESDOCUMENTTYPE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPOACINFER-SALESDOCUMENTTYPE.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field PURCHASINGDOCUMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PPOACINFER-PURCHASINGDOCUMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPOACINFER-PURCHASINGDOCUMENT.
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_PPOACINFER_STR, 
MANDT TYPE STRING,
ACCRUALENGINEAPPLICATION TYPE STRING,
COMPANYCODE TYPE STRING,
ACCRUALOBJECT TYPE STRING,
ACCRUALSUBOBJECT TYPE STRING,
ACCRUALITEMTYPE TYPE STRING,
LEDGER TYPE STRING,
ACCRUALPERIODENDDATE TYPE STRING,
LEDGERGROUP TYPE STRING,
ISMACHINELEARNINGPROPOSED TYPE STRING,
FISCALYEARVARIANT TYPE STRING,
MACHINELEARNINGACCRUALOBJECT TYPE STRING,
POSTINGPERIOD TYPE STRING,
GLOBALCURRENCY TYPE STRING,
PROPOSEDACCRAMTINGLOBALCRCY TYPE STRING,
ACCRUALAMTINGLOBALCRCY TYPE STRING,
ACTUALCOSTINGLOBALCRCY TYPE STRING,
PURCHASEORDERITEMNETAMOUNT TYPE STRING,
WBSELEMENT TYPE STRING,
SALESORDER TYPE STRING,
CUSTOMERGROUP TYPE STRING,
SALESDOCUMENTTYPE TYPE STRING,
INTERNALORDER TYPE STRING,
PURCHASINGDOCUMENT TYPE STRING,
DEPARTMENT TYPE STRING,
COSTCENTERCATEGORY TYPE STRING,
CONSUMPTIONQTYISRECORDED TYPE STRING,
FUNCTIONALAREA TYPE STRING,
MATERIALTYPE TYPE STRING,
INDUSTRYSECTOR TYPE STRING,
MATERIALGROUP TYPE STRING,
MATERIALCLASSNUMBER TYPE STRING,
PRPSDACCRAMTMAXCLPROBABILITY TYPE STRING,
PRPSDACCRAMTISCONFIRMED TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PPOACINFER_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_PPOACINFER_STR-MANDT sy-vline 
WA_PPOACINFER_STR-ACCRUALENGINEAPPLICATION sy-vline 
WA_PPOACINFER_STR-COMPANYCODE sy-vline 
WA_PPOACINFER_STR-ACCRUALOBJECT sy-vline 
WA_PPOACINFER_STR-ACCRUALSUBOBJECT sy-vline 
WA_PPOACINFER_STR-ACCRUALITEMTYPE sy-vline 
WA_PPOACINFER_STR-LEDGER sy-vline 
WA_PPOACINFER_STR-ACCRUALPERIODENDDATE sy-vline 
WA_PPOACINFER_STR-LEDGERGROUP sy-vline 
WA_PPOACINFER_STR-ISMACHINELEARNINGPROPOSED sy-vline 
WA_PPOACINFER_STR-FISCALYEARVARIANT sy-vline 
WA_PPOACINFER_STR-MACHINELEARNINGACCRUALOBJECT sy-vline 
WA_PPOACINFER_STR-POSTINGPERIOD sy-vline 
WA_PPOACINFER_STR-GLOBALCURRENCY sy-vline 
WA_PPOACINFER_STR-PROPOSEDACCRAMTINGLOBALCRCY sy-vline 
WA_PPOACINFER_STR-ACCRUALAMTINGLOBALCRCY sy-vline 
WA_PPOACINFER_STR-ACTUALCOSTINGLOBALCRCY sy-vline 
WA_PPOACINFER_STR-PURCHASEORDERITEMNETAMOUNT sy-vline 
WA_PPOACINFER_STR-WBSELEMENT sy-vline 
WA_PPOACINFER_STR-SALESORDER sy-vline 
WA_PPOACINFER_STR-CUSTOMERGROUP sy-vline 
WA_PPOACINFER_STR-SALESDOCUMENTTYPE sy-vline 
WA_PPOACINFER_STR-INTERNALORDER sy-vline 
WA_PPOACINFER_STR-PURCHASINGDOCUMENT sy-vline 
WA_PPOACINFER_STR-DEPARTMENT sy-vline 
WA_PPOACINFER_STR-COSTCENTERCATEGORY sy-vline 
WA_PPOACINFER_STR-CONSUMPTIONQTYISRECORDED sy-vline 
WA_PPOACINFER_STR-FUNCTIONALAREA sy-vline 
WA_PPOACINFER_STR-MATERIALTYPE sy-vline 
WA_PPOACINFER_STR-INDUSTRYSECTOR sy-vline 
WA_PPOACINFER_STR-MATERIALGROUP sy-vline 
WA_PPOACINFER_STR-MATERIALCLASSNUMBER sy-vline 
WA_PPOACINFER_STR-PRPSDACCRAMTMAXCLPROBABILITY sy-vline 
WA_PPOACINFER_STR-PRPSDACCRAMTISCONFIRMED sy-vline      INTO ld_text SEPARATED BY SPACE.

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