ABAP Select data from SAP table IMMPURREQACCASS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IMMPURREQACCASS
*  INTO TABLE @DATA(IT_IMMPURREQACCASS2).
*--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_IMMPURREQACCASS INDEX 1 INTO DATA(WA_IMMPURREQACCASS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IMMPURREQACCASS>-MANDT = 1.
<IMMPURREQACCASS>-PURCHASEREQUISITION = 1.
<IMMPURREQACCASS>-PURCHASEREQUISITIONITEM = 1.
<IMMPURREQACCASS>-PURCHASEREQNACCTASSGMTNUMBER = 1.
<IMMPURREQACCASS>-COSTCENTER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IMMPURREQACCASS-MASTERFIXEDASSET, sy-vline,
  WA_IMMPURREQACCASS-PROJECTNETWORK, sy-vline,
  WA_IMMPURREQACCASS-PROCESSORDER, sy-vline,
  WA_IMMPURREQACCASS-QUANTITY, sy-vline,
  WA_IMMPURREQACCASS-MULTIPLEACCTASSGMTDISTRPERCENT, sy-vline,
  WA_IMMPURREQACCASS-CURRENCY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IMMPURREQACCASS 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_IMMPURREQACCASS 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_IMMPURREQACCASS INTO WA_IMMPURREQACCASS.


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

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

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

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

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

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

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

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

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

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

*Conversion exit ABPSP, internal->external for field WBSELEMENTINTERNALID
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_IMMPURREQACCASS-WBSELEMENTINTERNALID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IMMPURREQACCASS-WBSELEMENTINTERNALID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit FMCIS, internal->external for field COMMITMENTITEM
CALL FUNCTION 'CONVERSION_EXIT_FMCIS_OUTPUT'
  EXPORTING
    input =                      WA_IMMPURREQACCASS-COMMITMENTITEM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IMMPURREQACCASS-COMMITMENTITEM.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field EARMARKEDFUNDS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IMMPURREQACCASS-EARMARKEDFUNDS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IMMPURREQACCASS-EARMARKEDFUNDS.
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_IMMPURREQACCASS_STR, 
MANDT TYPE STRING,
PURCHASEREQUISITION TYPE STRING,
PURCHASEREQUISITIONITEM TYPE STRING,
PURCHASEREQNACCTASSGMTNUMBER TYPE STRING,
COSTCENTER TYPE STRING,
MASTERFIXEDASSET TYPE STRING,
PROJECTNETWORK TYPE STRING,
PROCESSORDER TYPE STRING,
QUANTITY TYPE STRING,
MULTIPLEACCTASSGMTDISTRPERCENT TYPE STRING,
CURRENCY TYPE STRING,
PURREQNNETAMOUNT TYPE STRING,
ISDELETED TYPE STRING,
GLACCOUNT TYPE STRING,
BUSINESSAREA TYPE STRING,
SALESORDER TYPE STRING,
SALESORDERITEM TYPE STRING,
SALESORDERSCHEDULELINE TYPE STRING,
FIXEDASSET TYPE STRING,
ORDERID TYPE STRING,
UNLOADINGPOINTNAME TYPE STRING,
CONTROLLINGAREA TYPE STRING,
COSTOBJECT TYPE STRING,
PROFITABILITYSEGMENT TYPE STRING,
PROFITCENTER TYPE STRING,
WBSELEMENTINTERNALID TYPE STRING,
PROJECTNETWORKINTERNALID TYPE STRING,
COMMITMENTITEM TYPE STRING,
FUNDSCENTER TYPE STRING,
FUND TYPE STRING,
FUNCTIONALAREA TYPE STRING,
BUDGETPERIOD TYPE STRING,
GRANTID TYPE STRING,
EARMARKEDFUNDS TYPE STRING,
EARMARKEDFUNDSITEM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IMMPURREQACCASS_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_IMMPURREQACCASS_STR-MANDT sy-vline 
WA_IMMPURREQACCASS_STR-PURCHASEREQUISITION sy-vline 
WA_IMMPURREQACCASS_STR-PURCHASEREQUISITIONITEM sy-vline 
WA_IMMPURREQACCASS_STR-PURCHASEREQNACCTASSGMTNUMBER sy-vline 
WA_IMMPURREQACCASS_STR-COSTCENTER sy-vline 
WA_IMMPURREQACCASS_STR-MASTERFIXEDASSET sy-vline 
WA_IMMPURREQACCASS_STR-PROJECTNETWORK sy-vline 
WA_IMMPURREQACCASS_STR-PROCESSORDER sy-vline 
WA_IMMPURREQACCASS_STR-QUANTITY sy-vline 
WA_IMMPURREQACCASS_STR-MULTIPLEACCTASSGMTDISTRPERCENT sy-vline 
WA_IMMPURREQACCASS_STR-CURRENCY sy-vline 
WA_IMMPURREQACCASS_STR-PURREQNNETAMOUNT sy-vline 
WA_IMMPURREQACCASS_STR-ISDELETED sy-vline 
WA_IMMPURREQACCASS_STR-GLACCOUNT sy-vline 
WA_IMMPURREQACCASS_STR-BUSINESSAREA sy-vline 
WA_IMMPURREQACCASS_STR-SALESORDER sy-vline 
WA_IMMPURREQACCASS_STR-SALESORDERITEM sy-vline 
WA_IMMPURREQACCASS_STR-SALESORDERSCHEDULELINE sy-vline 
WA_IMMPURREQACCASS_STR-FIXEDASSET sy-vline 
WA_IMMPURREQACCASS_STR-ORDERID sy-vline 
WA_IMMPURREQACCASS_STR-UNLOADINGPOINTNAME sy-vline 
WA_IMMPURREQACCASS_STR-CONTROLLINGAREA sy-vline 
WA_IMMPURREQACCASS_STR-COSTOBJECT sy-vline 
WA_IMMPURREQACCASS_STR-PROFITABILITYSEGMENT sy-vline 
WA_IMMPURREQACCASS_STR-PROFITCENTER sy-vline 
WA_IMMPURREQACCASS_STR-WBSELEMENTINTERNALID sy-vline 
WA_IMMPURREQACCASS_STR-PROJECTNETWORKINTERNALID sy-vline 
WA_IMMPURREQACCASS_STR-COMMITMENTITEM sy-vline 
WA_IMMPURREQACCASS_STR-FUNDSCENTER sy-vline 
WA_IMMPURREQACCASS_STR-FUND sy-vline 
WA_IMMPURREQACCASS_STR-FUNCTIONALAREA sy-vline 
WA_IMMPURREQACCASS_STR-BUDGETPERIOD sy-vline 
WA_IMMPURREQACCASS_STR-GRANTID sy-vline 
WA_IMMPURREQACCASS_STR-EARMARKEDFUNDS sy-vline 
WA_IMMPURREQACCASS_STR-EARMARKEDFUNDSITEM sy-vline      INTO ld_text SEPARATED BY SPACE.

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