ABAP Select data from SAP table PSRVDOCRRCHABASE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PSRVDOCRRCHABASE
*  INTO TABLE @DATA(IT_PSRVDOCRRCHABASE2).
*--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_PSRVDOCRRCHABASE INDEX 1 INTO DATA(WA_PSRVDOCRRCHABASE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PSRVDOCRRCHABASE>-MANDT = 1.
<PSRVDOCRRCHABASE>-SERVICEDOCUMENT = 1.
<PSRVDOCRRCHABASE>-SERVICEDOCUMENTITEM = 1.
<PSRVDOCRRCHABASE>-COMPANYCODE = 1.
<PSRVDOCRRCHABASE>-LEDGER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PSRVDOCRRCHABASE-SERVICEDOCUMENTTYPE, sy-vline,
  WA_PSRVDOCRRCHABASE-RESULTANALYSISINTERNALID, sy-vline,
  WA_PSRVDOCRRCHABASE-FISCALPERIOD, sy-vline,
  WA_PSRVDOCRRCHABASE-FISCALYEAR, sy-vline,
  WA_PSRVDOCRRCHABASE-COMPANYCODECURRENCY, sy-vline,
  WA_PSRVDOCRRCHABASE-TOFISCALYEARPERIOD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PSRVDOCRRCHABASE 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_PSRVDOCRRCHABASE 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_PSRVDOCRRCHABASE INTO WA_PSRVDOCRRCHABASE.


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

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

*Conversion exit GJAHR, internal->external for field FISCALYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_PSRVDOCRRCHABASE-FISCALYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PSRVDOCRRCHABASE-FISCALYEAR.
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_PSRVDOCRRCHABASE_STR, 
MANDT TYPE STRING,
SERVICEDOCUMENT TYPE STRING,
SERVICEDOCUMENTITEM TYPE STRING,
COMPANYCODE TYPE STRING,
LEDGER TYPE STRING,
SERVICEDOCUMENTTYPE TYPE STRING,
RESULTANALYSISINTERNALID TYPE STRING,
FISCALPERIOD TYPE STRING,
FISCALYEAR TYPE STRING,
COMPANYCODECURRENCY TYPE STRING,
TOFISCALYEARPERIOD TYPE STRING,
POSTINGFISCALPERIOD TYPE STRING,
POSTINGDATE TYPE STRING,
ACCOUNTASSIGNMENTTYPE TYPE STRING,
RECOGNIZABLECOSTAMTINCCCRCY TYPE STRING,
RECOGNIZABLEREVENUEAMTINCCCRCY TYPE STRING,
REVENUEADJUSTMENTAMTINCCCRCY TYPE STRING,
COGSADJUSTMENTAMTINCCCRCY TYPE STRING,
DEFERREDCOGSAMTINCCCRCY TYPE STRING,
DEFERREDREVENUEAMTINCCCRCY TYPE STRING,
ACCRUEDREVENUEAMTINCCCRCY TYPE STRING,
ACCRUEDCOGSAMTINCCCRCY TYPE STRING,
IMMINENTLOSSRSRVAMTINCCCRCY TYPE STRING,
SALESDEDUCTRESERVEAMTINCCCRCY TYPE STRING,
UNRLZDCOSTSRESERVEAMTINCCCRCY TYPE STRING,
UNBILLEDREVNINCOCODECRCY TYPE STRING,
MNLCONTRACCRPNLITMAMTINCCCRCY TYPE STRING,
MNLCONTRACCRBALSHTAMTINCCCRCY TYPE STRING,
RECOGNIZEDCOGSAMTINCCCRCY TYPE STRING,
RECOGNIZEDREVNAMTINCCCRCY TYPE STRING,
RECOGNIZEDMARGINAMTINCCCRCY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PSRVDOCRRCHABASE_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_PSRVDOCRRCHABASE_STR-MANDT sy-vline 
WA_PSRVDOCRRCHABASE_STR-SERVICEDOCUMENT sy-vline 
WA_PSRVDOCRRCHABASE_STR-SERVICEDOCUMENTITEM sy-vline 
WA_PSRVDOCRRCHABASE_STR-COMPANYCODE sy-vline 
WA_PSRVDOCRRCHABASE_STR-LEDGER sy-vline 
WA_PSRVDOCRRCHABASE_STR-SERVICEDOCUMENTTYPE sy-vline 
WA_PSRVDOCRRCHABASE_STR-RESULTANALYSISINTERNALID sy-vline 
WA_PSRVDOCRRCHABASE_STR-FISCALPERIOD sy-vline 
WA_PSRVDOCRRCHABASE_STR-FISCALYEAR sy-vline 
WA_PSRVDOCRRCHABASE_STR-COMPANYCODECURRENCY sy-vline 
WA_PSRVDOCRRCHABASE_STR-TOFISCALYEARPERIOD sy-vline 
WA_PSRVDOCRRCHABASE_STR-POSTINGFISCALPERIOD sy-vline 
WA_PSRVDOCRRCHABASE_STR-POSTINGDATE sy-vline 
WA_PSRVDOCRRCHABASE_STR-ACCOUNTASSIGNMENTTYPE sy-vline 
WA_PSRVDOCRRCHABASE_STR-RECOGNIZABLECOSTAMTINCCCRCY sy-vline 
WA_PSRVDOCRRCHABASE_STR-RECOGNIZABLEREVENUEAMTINCCCRCY sy-vline 
WA_PSRVDOCRRCHABASE_STR-REVENUEADJUSTMENTAMTINCCCRCY sy-vline 
WA_PSRVDOCRRCHABASE_STR-COGSADJUSTMENTAMTINCCCRCY sy-vline 
WA_PSRVDOCRRCHABASE_STR-DEFERREDCOGSAMTINCCCRCY sy-vline 
WA_PSRVDOCRRCHABASE_STR-DEFERREDREVENUEAMTINCCCRCY sy-vline 
WA_PSRVDOCRRCHABASE_STR-ACCRUEDREVENUEAMTINCCCRCY sy-vline 
WA_PSRVDOCRRCHABASE_STR-ACCRUEDCOGSAMTINCCCRCY sy-vline 
WA_PSRVDOCRRCHABASE_STR-IMMINENTLOSSRSRVAMTINCCCRCY sy-vline 
WA_PSRVDOCRRCHABASE_STR-SALESDEDUCTRESERVEAMTINCCCRCY sy-vline 
WA_PSRVDOCRRCHABASE_STR-UNRLZDCOSTSRESERVEAMTINCCCRCY sy-vline 
WA_PSRVDOCRRCHABASE_STR-UNBILLEDREVNINCOCODECRCY sy-vline 
WA_PSRVDOCRRCHABASE_STR-MNLCONTRACCRPNLITMAMTINCCCRCY sy-vline 
WA_PSRVDOCRRCHABASE_STR-MNLCONTRACCRBALSHTAMTINCCCRCY sy-vline 
WA_PSRVDOCRRCHABASE_STR-RECOGNIZEDCOGSAMTINCCCRCY sy-vline 
WA_PSRVDOCRRCHABASE_STR-RECOGNIZEDREVNAMTINCCCRCY sy-vline 
WA_PSRVDOCRRCHABASE_STR-RECOGNIZEDMARGINAMTINCCCRCY sy-vline      INTO ld_text SEPARATED BY SPACE.

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