ABAP Select data from SAP table IRAPOSTPNPOSTITM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IRAPOSTPNPOSTITM
*  INTO TABLE @DATA(IT_IRAPOSTPNPOSTITM2).
*--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_IRAPOSTPNPOSTITM INDEX 1 INTO DATA(WA_IRAPOSTPNPOSTITM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IRAPOSTPNPOSTITM>-MANDT = 1.
<IRAPOSTPNPOSTITM>-COMPANYCODE = 1.
<IRAPOSTPNPOSTITM>-ACCOUNTINGPRINCIPLE = 1.
<IRAPOSTPNPOSTITM>-REVNACCTGRECONCILIATIONKEY = 1.
<IRAPOSTPNPOSTITM>-PERFORMANCEOBLIGATION = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IRAPOSTPNPOSTITM-CONDITIONTYPE, sy-vline,
  WA_IRAPOSTPNPOSTITM-REVNACCTGPOSTINGCATEGORY, sy-vline,
  WA_IRAPOSTPNPOSTITM-DEBITCREDITCODE, sy-vline,
  WA_IRAPOSTPNPOSTITM-REVNACCTGPOSTINGITEMUUID, sy-vline,
  WA_IRAPOSTPNPOSTITM-REVENUEACCOUNTINGCONTRACT, sy-vline,
  WA_IRAPOSTPNPOSTITM-REVNACCTGPOSTGAMTINSLSDOCCRCY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IRAPOSTPNPOSTITM 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_IRAPOSTPNPOSTITM 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_IRAPOSTPNPOSTITM INTO WA_IRAPOSTPNPOSTITM.


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

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

*Conversion exit GJAHR, internal->external for field FISCALYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_IRAPOSTPNPOSTITM-FISCALYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IRAPOSTPNPOSTITM-FISCALYEAR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field RASNDGCOMPLOGICALSYSTEM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IRAPOSTPNPOSTITM-RASNDGCOMPLOGICALSYSTEM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IRAPOSTPNPOSTITM-RASNDGCOMPLOGICALSYSTEM.
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_IRAPOSTPNPOSTITM_STR, 
MANDT TYPE STRING,
COMPANYCODE TYPE STRING,
ACCOUNTINGPRINCIPLE TYPE STRING,
REVNACCTGRECONCILIATIONKEY TYPE STRING,
PERFORMANCEOBLIGATION TYPE STRING,
CONDITIONTYPE TYPE STRING,
REVNACCTGPOSTINGCATEGORY TYPE STRING,
DEBITCREDITCODE TYPE STRING,
REVNACCTGPOSTINGITEMUUID TYPE STRING,
REVENUEACCOUNTINGCONTRACT TYPE STRING,
REVNACCTGPOSTGAMTINSLSDOCCRCY TYPE STRING,
SALESDOCUMENTCURRENCY TYPE STRING,
REVNACCTGPOSTGAMTINCOCODECRCY TYPE STRING,
COMPANYCODECURRENCY TYPE STRING,
REVNACCTGPOSTGAMTINADDLCRCY1 TYPE STRING,
ADDITIONALCURRENCY1 TYPE STRING,
REVNACCTGPOSTGAMTINADDLCRCY2 TYPE STRING,
ADDITIONALCURRENCY2 TYPE STRING,
RAPOSTINGITEMLASTCHGDATETIME TYPE STRING,
CONDITIONISFORSTATISTICS TYPE STRING,
FISCALYEAR TYPE STRING,
FISCALYEARPERIOD TYPE STRING,
GLACCOUNT TYPE STRING,
REVNACCTGINVOICEUUID TYPE STRING,
REVNACCTGSENDERCOMPONENT TYPE STRING,
RASNDGCOMPLOGICALSYSTEM TYPE STRING,
RASNDGCOMPDOCUMENTITEMTYPE TYPE STRING,
RASNDGCOMPDOCUMENTITEM TYPE STRING,
FISCALPERIOD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IRAPOSTPNPOSTITM_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_IRAPOSTPNPOSTITM_STR-MANDT sy-vline 
WA_IRAPOSTPNPOSTITM_STR-COMPANYCODE sy-vline 
WA_IRAPOSTPNPOSTITM_STR-ACCOUNTINGPRINCIPLE sy-vline 
WA_IRAPOSTPNPOSTITM_STR-REVNACCTGRECONCILIATIONKEY sy-vline 
WA_IRAPOSTPNPOSTITM_STR-PERFORMANCEOBLIGATION sy-vline 
WA_IRAPOSTPNPOSTITM_STR-CONDITIONTYPE sy-vline 
WA_IRAPOSTPNPOSTITM_STR-REVNACCTGPOSTINGCATEGORY sy-vline 
WA_IRAPOSTPNPOSTITM_STR-DEBITCREDITCODE sy-vline 
WA_IRAPOSTPNPOSTITM_STR-REVNACCTGPOSTINGITEMUUID sy-vline 
WA_IRAPOSTPNPOSTITM_STR-REVENUEACCOUNTINGCONTRACT sy-vline 
WA_IRAPOSTPNPOSTITM_STR-REVNACCTGPOSTGAMTINSLSDOCCRCY sy-vline 
WA_IRAPOSTPNPOSTITM_STR-SALESDOCUMENTCURRENCY sy-vline 
WA_IRAPOSTPNPOSTITM_STR-REVNACCTGPOSTGAMTINCOCODECRCY sy-vline 
WA_IRAPOSTPNPOSTITM_STR-COMPANYCODECURRENCY sy-vline 
WA_IRAPOSTPNPOSTITM_STR-REVNACCTGPOSTGAMTINADDLCRCY1 sy-vline 
WA_IRAPOSTPNPOSTITM_STR-ADDITIONALCURRENCY1 sy-vline 
WA_IRAPOSTPNPOSTITM_STR-REVNACCTGPOSTGAMTINADDLCRCY2 sy-vline 
WA_IRAPOSTPNPOSTITM_STR-ADDITIONALCURRENCY2 sy-vline 
WA_IRAPOSTPNPOSTITM_STR-RAPOSTINGITEMLASTCHGDATETIME sy-vline 
WA_IRAPOSTPNPOSTITM_STR-CONDITIONISFORSTATISTICS sy-vline 
WA_IRAPOSTPNPOSTITM_STR-FISCALYEAR sy-vline 
WA_IRAPOSTPNPOSTITM_STR-FISCALYEARPERIOD sy-vline 
WA_IRAPOSTPNPOSTITM_STR-GLACCOUNT sy-vline 
WA_IRAPOSTPNPOSTITM_STR-REVNACCTGINVOICEUUID sy-vline 
WA_IRAPOSTPNPOSTITM_STR-REVNACCTGSENDERCOMPONENT sy-vline 
WA_IRAPOSTPNPOSTITM_STR-RASNDGCOMPLOGICALSYSTEM sy-vline 
WA_IRAPOSTPNPOSTITM_STR-RASNDGCOMPDOCUMENTITEMTYPE sy-vline 
WA_IRAPOSTPNPOSTITM_STR-RASNDGCOMPDOCUMENTITEM sy-vline 
WA_IRAPOSTPNPOSTITM_STR-FISCALPERIOD sy-vline      INTO ld_text SEPARATED BY SPACE.

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