ABAP Select data from SAP table IRAPERFDOCFLO into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IRAPERFDOCFLO
*  INTO TABLE @DATA(IT_IRAPERFDOCFLO2).
*--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_IRAPERFDOCFLO INDEX 1 INTO DATA(WA_IRAPERFDOCFLO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IRAPERFDOCFLO>-MANDT = 1.
<IRAPERFDOCFLO>-PERFORMANCEOBLIGATION = 1.
<IRAPERFDOCFLO>-REVNACCTGSENDERCOMPONENT = 1.
<IRAPERFDOCFLO>-RASNDGCOMPLOGICALSYSTEM = 1.
<IRAPERFDOCFLO>-RASNDGCOMPDOCUMENTITEMTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IRAPERFDOCFLO-RASNDGCOMPDOCUMENTITEM, sy-vline,
  WA_IRAPERFDOCFLO-RAITEMTYPE, sy-vline,
  WA_IRAPERFDOCFLO-REVNACCTGOPERATIONALDOCUMENT, sy-vline,
  WA_IRAPERFDOCFLO-REFERENCEDOCUMENT, sy-vline,
  WA_IRAPERFDOCFLO-RADOCUMENTCREATIONDATE, sy-vline,
  WA_IRAPERFDOCFLO-COMPANYCODE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IRAPERFDOCFLO 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_IRAPERFDOCFLO 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_IRAPERFDOCFLO INTO WA_IRAPERFDOCFLO.


*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_IRAPERFDOCFLO-PERFORMANCEOBLIGATION
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IRAPERFDOCFLO-PERFORMANCEOBLIGATION.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit GJAHR, internal->external for field MATERIALDOCUMENTYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_IRAPERFDOCFLO-MATERIALDOCUMENTYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IRAPERFDOCFLO-MATERIALDOCUMENTYEAR.
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_IRAPERFDOCFLO_STR, 
MANDT TYPE STRING,
PERFORMANCEOBLIGATION TYPE STRING,
REVNACCTGSENDERCOMPONENT TYPE STRING,
RASNDGCOMPLOGICALSYSTEM TYPE STRING,
RASNDGCOMPDOCUMENTITEMTYPE TYPE STRING,
RASNDGCOMPDOCUMENTITEM TYPE STRING,
RAITEMTYPE TYPE STRING,
REVNACCTGOPERATIONALDOCUMENT TYPE STRING,
REFERENCEDOCUMENT TYPE STRING,
RADOCUMENTCREATIONDATE TYPE STRING,
COMPANYCODE TYPE STRING,
ACCOUNTINGPRINCIPLE TYPE STRING,
REFERENCEDOCUMENTTYPE TYPE STRING,
PERFOBLGNINVOICEDUEDATE TYPE STRING,
REVNACCTGITMQUANTITY TYPE STRING,
REVNACCTGITMQUANTITYUNIT TYPE STRING,
REVNACCTGITMAMTINSLSDOCCRCY TYPE STRING,
SALESDOCUMENTCURRENCY TYPE STRING,
RARECNCLNKEYRUNID TYPE STRING,
REVNACCTGPOSTINGRUNUUID TYPE STRING,
CONTRLIABILITYASSETVALUEDATE TYPE STRING,
PERFOBLGNEVENTTYPE TYPE STRING,
MATERIALDOCUMENTYEAR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IRAPERFDOCFLO_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_IRAPERFDOCFLO_STR-MANDT sy-vline 
WA_IRAPERFDOCFLO_STR-PERFORMANCEOBLIGATION sy-vline 
WA_IRAPERFDOCFLO_STR-REVNACCTGSENDERCOMPONENT sy-vline 
WA_IRAPERFDOCFLO_STR-RASNDGCOMPLOGICALSYSTEM sy-vline 
WA_IRAPERFDOCFLO_STR-RASNDGCOMPDOCUMENTITEMTYPE sy-vline 
WA_IRAPERFDOCFLO_STR-RASNDGCOMPDOCUMENTITEM sy-vline 
WA_IRAPERFDOCFLO_STR-RAITEMTYPE sy-vline 
WA_IRAPERFDOCFLO_STR-REVNACCTGOPERATIONALDOCUMENT sy-vline 
WA_IRAPERFDOCFLO_STR-REFERENCEDOCUMENT sy-vline 
WA_IRAPERFDOCFLO_STR-RADOCUMENTCREATIONDATE sy-vline 
WA_IRAPERFDOCFLO_STR-COMPANYCODE sy-vline 
WA_IRAPERFDOCFLO_STR-ACCOUNTINGPRINCIPLE sy-vline 
WA_IRAPERFDOCFLO_STR-REFERENCEDOCUMENTTYPE sy-vline 
WA_IRAPERFDOCFLO_STR-PERFOBLGNINVOICEDUEDATE sy-vline 
WA_IRAPERFDOCFLO_STR-REVNACCTGITMQUANTITY sy-vline 
WA_IRAPERFDOCFLO_STR-REVNACCTGITMQUANTITYUNIT sy-vline 
WA_IRAPERFDOCFLO_STR-REVNACCTGITMAMTINSLSDOCCRCY sy-vline 
WA_IRAPERFDOCFLO_STR-SALESDOCUMENTCURRENCY sy-vline 
WA_IRAPERFDOCFLO_STR-RARECNCLNKEYRUNID sy-vline 
WA_IRAPERFDOCFLO_STR-REVNACCTGPOSTINGRUNUUID sy-vline 
WA_IRAPERFDOCFLO_STR-CONTRLIABILITYASSETVALUEDATE sy-vline 
WA_IRAPERFDOCFLO_STR-PERFOBLGNEVENTTYPE sy-vline 
WA_IRAPERFDOCFLO_STR-MATERIALDOCUMENTYEAR sy-vline      INTO ld_text SEPARATED BY SPACE.

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