ABAP Select data from SAP table PRAPRCALLOCDT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PRAPRCALLOCDT
*  INTO TABLE @DATA(IT_PRAPRCALLOCDT2).
*--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_PRAPRCALLOCDT INDEX 1 INTO DATA(WA_PRAPRCALLOCDT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PRAPRCALLOCDT>-MANDT = 1.
<PRAPRCALLOCDT>-PERFORMANCEOBLIGATION = 1.
<PRAPRCALLOCDT>-REVENUEACCOUNTINGCONTRACT = 1.
<PRAPRCALLOCDT>-REVNACCTGCONTRCHANGEEFFCTVDATE = 1.
<PRAPRCALLOCDT>-REVNACCTGRECONCILIATIONKEY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PRAPRCALLOCDT-RAPERFOBLGNCHANGETYPE, sy-vline,
  WA_PRAPRCALLOCDT-RAPREVCONTRCHANGEEFFCTVDATE, sy-vline,
  WA_PRAPRCALLOCDT-PERFORMANCEOBLIGATIONCLASS, sy-vline,
  WA_PRAPRCALLOCDT-FISCALYEARPERIOD, sy-vline,
  WA_PRAPRCALLOCDT-RABUSINESSCHANGEREASON, sy-vline,
  WA_PRAPRCALLOCDT-RAPERFOBLGNDISTINCTTYPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PRAPRCALLOCDT 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_PRAPRCALLOCDT 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_PRAPRCALLOCDT INTO WA_PRAPRCALLOCDT.


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

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

*Conversion exit CUNIT, internal->external for field PERFOBLGNEFFECTIVEQUANTITYUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PRAPRCALLOCDT-PERFOBLGNEFFECTIVEQUANTITYUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PRAPRCALLOCDT-PERFOBLGNEFFECTIVEQUANTITYUNIT.
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_PRAPRCALLOCDT_STR, 
MANDT TYPE STRING,
PERFORMANCEOBLIGATION TYPE STRING,
REVENUEACCOUNTINGCONTRACT TYPE STRING,
REVNACCTGCONTRCHANGEEFFCTVDATE TYPE STRING,
REVNACCTGRECONCILIATIONKEY TYPE STRING,
RAPERFOBLGNCHANGETYPE TYPE STRING,
RAPREVCONTRCHANGEEFFCTVDATE TYPE STRING,
PERFORMANCEOBLIGATIONCLASS TYPE STRING,
FISCALYEARPERIOD TYPE STRING,
RABUSINESSCHANGEREASON TYPE STRING,
RAPERFOBLGNDISTINCTTYPE TYPE STRING,
CONTRACTUALPRCINSLSDOCCRCY TYPE STRING,
ALLOCATEDPRICEINSALESDOCCRCY TYPE STRING,
SSPRICEINSALESDOCCRCY TYPE STRING,
SSPRICETOLERANCEPERCENT TYPE STRING,
SSPRICETOLERANCEAMOUNT TYPE STRING,
SALESDOCUMENTCURRENCY TYPE STRING,
RAPERFOBLGNISRESIDUAL TYPE STRING,
PERFOBLGNISEXCLFROMPRICEALLOC TYPE STRING,
RACONTRACTISMANUALLYALLOCATED TYPE STRING,
PERFOBLGNEFFECTIVEQUANTITY TYPE STRING,
PERFOBLGNEFFECTIVEQUANTITYUNIT TYPE STRING,
RAPERFOBLGNFINALIZATIONDATE TYPE STRING,
PREVRECOGNIZEDAMTINSLSDOCCRCY TYPE STRING,
PERFOBLGNPREVIOUSFULFILLEDQTY TYPE STRING,
PREVIOUSSSPRICEINSALESDOCCRCY TYPE STRING,
PREVSSPRICETOLAMTINSLSDOCCRCY TYPE STRING,
PREVSSPRICETOLERANCEPERCENT TYPE STRING,
PREVPERFOBLGNEFFECTIVEQUANTITY TYPE STRING,
PREVCONTRACTUALPRCINSLSDOCCRCY TYPE STRING,
PREVALLOCATEDPRICEINSLSDOCCRCY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PRAPRCALLOCDT_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_PRAPRCALLOCDT_STR-MANDT sy-vline 
WA_PRAPRCALLOCDT_STR-PERFORMANCEOBLIGATION sy-vline 
WA_PRAPRCALLOCDT_STR-REVENUEACCOUNTINGCONTRACT sy-vline 
WA_PRAPRCALLOCDT_STR-REVNACCTGCONTRCHANGEEFFCTVDATE sy-vline 
WA_PRAPRCALLOCDT_STR-REVNACCTGRECONCILIATIONKEY sy-vline 
WA_PRAPRCALLOCDT_STR-RAPERFOBLGNCHANGETYPE sy-vline 
WA_PRAPRCALLOCDT_STR-RAPREVCONTRCHANGEEFFCTVDATE sy-vline 
WA_PRAPRCALLOCDT_STR-PERFORMANCEOBLIGATIONCLASS sy-vline 
WA_PRAPRCALLOCDT_STR-FISCALYEARPERIOD sy-vline 
WA_PRAPRCALLOCDT_STR-RABUSINESSCHANGEREASON sy-vline 
WA_PRAPRCALLOCDT_STR-RAPERFOBLGNDISTINCTTYPE sy-vline 
WA_PRAPRCALLOCDT_STR-CONTRACTUALPRCINSLSDOCCRCY sy-vline 
WA_PRAPRCALLOCDT_STR-ALLOCATEDPRICEINSALESDOCCRCY sy-vline 
WA_PRAPRCALLOCDT_STR-SSPRICEINSALESDOCCRCY sy-vline 
WA_PRAPRCALLOCDT_STR-SSPRICETOLERANCEPERCENT sy-vline 
WA_PRAPRCALLOCDT_STR-SSPRICETOLERANCEAMOUNT sy-vline 
WA_PRAPRCALLOCDT_STR-SALESDOCUMENTCURRENCY sy-vline 
WA_PRAPRCALLOCDT_STR-RAPERFOBLGNISRESIDUAL sy-vline 
WA_PRAPRCALLOCDT_STR-PERFOBLGNISEXCLFROMPRICEALLOC sy-vline 
WA_PRAPRCALLOCDT_STR-RACONTRACTISMANUALLYALLOCATED sy-vline 
WA_PRAPRCALLOCDT_STR-PERFOBLGNEFFECTIVEQUANTITY sy-vline 
WA_PRAPRCALLOCDT_STR-PERFOBLGNEFFECTIVEQUANTITYUNIT sy-vline 
WA_PRAPRCALLOCDT_STR-RAPERFOBLGNFINALIZATIONDATE sy-vline 
WA_PRAPRCALLOCDT_STR-PREVRECOGNIZEDAMTINSLSDOCCRCY sy-vline 
WA_PRAPRCALLOCDT_STR-PERFOBLGNPREVIOUSFULFILLEDQTY sy-vline 
WA_PRAPRCALLOCDT_STR-PREVIOUSSSPRICEINSALESDOCCRCY sy-vline 
WA_PRAPRCALLOCDT_STR-PREVSSPRICETOLAMTINSLSDOCCRCY sy-vline 
WA_PRAPRCALLOCDT_STR-PREVSSPRICETOLERANCEPERCENT sy-vline 
WA_PRAPRCALLOCDT_STR-PREVPERFOBLGNEFFECTIVEQUANTITY sy-vline 
WA_PRAPRCALLOCDT_STR-PREVCONTRACTUALPRCINSLSDOCCRCY sy-vline 
WA_PRAPRCALLOCDT_STR-PREVALLOCATEDPRICEINSLSDOCCRCY sy-vline      INTO ld_text SEPARATED BY SPACE.

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