ABAP Select data from SAP table ISFIRENRCD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ISFIRENRCD
*  INTO TABLE @DATA(IT_ISFIRENRCD2).
*--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_ISFIRENRCD INDEX 1 INTO DATA(WA_ISFIRENRCD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ISFIRENRCD>-MANDT = 1.
<ISFIRENRCD>-SUPLRFRTINVCREQUUID = 1.
<ISFIRENRCD>-SUPPLIERFREIGHTINVOICEREQUEST = 1.
<ISFIRENRCD>-SUPLRFRTINVCREQTYPE = 1.
<ISFIRENRCD>-SUPLRFRTINVCREQCATEGORY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ISFIRENRCD-PURCHASINGORGANIZATION, sy-vline,
  WA_ISFIRENRCD-PURCHASINGORGEXTERNALID, sy-vline,
  WA_ISFIRENRCD-PURCHASINGGROUP, sy-vline,
  WA_ISFIRENRCD-PURCHASINGGROUPEXTERNALID, sy-vline,
  WA_ISFIRENRCD-SUPLRFRTINVCREQBLOCKREASON, sy-vline,
  WA_ISFIRENRCD-SUPLRFRTINVCREQLIFECYCSTS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ISFIRENRCD 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_ISFIRENRCD 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_ISFIRENRCD INTO WA_ISFIRENRCD.


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

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

*Conversion exit ALPHA, internal->external for field CARRIER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ISFIRENRCD-CARRIER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISFIRENRCD-CARRIER.
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_ISFIRENRCD_STR, 
MANDT TYPE STRING,
SUPLRFRTINVCREQUUID TYPE STRING,
SUPPLIERFREIGHTINVOICEREQUEST TYPE STRING,
SUPLRFRTINVCREQTYPE TYPE STRING,
SUPLRFRTINVCREQCATEGORY TYPE STRING,
PURCHASINGORGANIZATION TYPE STRING,
PURCHASINGORGEXTERNALID TYPE STRING,
PURCHASINGGROUP TYPE STRING,
PURCHASINGGROUPEXTERNALID TYPE STRING,
SUPLRFRTINVCREQBLOCKREASON TYPE STRING,
SUPLRFRTINVCREQLIFECYCSTS TYPE STRING,
SUPLRFRTINVCREQBLOCKSTATUS TYPE STRING,
SUPLRFRTINVCREQCONSTCYSTS TYPE STRING,
SUPLRFRTINVCREQARCHSTATUS TYPE STRING,
SUPLRFRTINVCREQCONFSTATUS TYPE STRING,
INVOICEDATE TYPE STRING,
INVOICINGSTATUSISINFLUENCED TYPE STRING,
BILLFROMPARTYUUID TYPE STRING,
BILLFROMPARTY TYPE STRING,
BILLFROMPTYAUTHORIZATIONGROUP TYPE STRING,
BILLFROMPTYBUSPRPSISCOMPLETED TYPE STRING,
CARRIERUUID TYPE STRING,
CARRIER TYPE STRING,
CARRIERAUTHORIZATIONGROUP TYPE STRING,
CARRIERBUSPURPOSEISCOMPLETED TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ISFIRENRCD_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_ISFIRENRCD_STR-MANDT sy-vline 
WA_ISFIRENRCD_STR-SUPLRFRTINVCREQUUID sy-vline 
WA_ISFIRENRCD_STR-SUPPLIERFREIGHTINVOICEREQUEST sy-vline 
WA_ISFIRENRCD_STR-SUPLRFRTINVCREQTYPE sy-vline 
WA_ISFIRENRCD_STR-SUPLRFRTINVCREQCATEGORY sy-vline 
WA_ISFIRENRCD_STR-PURCHASINGORGANIZATION sy-vline 
WA_ISFIRENRCD_STR-PURCHASINGORGEXTERNALID sy-vline 
WA_ISFIRENRCD_STR-PURCHASINGGROUP sy-vline 
WA_ISFIRENRCD_STR-PURCHASINGGROUPEXTERNALID sy-vline 
WA_ISFIRENRCD_STR-SUPLRFRTINVCREQBLOCKREASON sy-vline 
WA_ISFIRENRCD_STR-SUPLRFRTINVCREQLIFECYCSTS sy-vline 
WA_ISFIRENRCD_STR-SUPLRFRTINVCREQBLOCKSTATUS sy-vline 
WA_ISFIRENRCD_STR-SUPLRFRTINVCREQCONSTCYSTS sy-vline 
WA_ISFIRENRCD_STR-SUPLRFRTINVCREQARCHSTATUS sy-vline 
WA_ISFIRENRCD_STR-SUPLRFRTINVCREQCONFSTATUS sy-vline 
WA_ISFIRENRCD_STR-INVOICEDATE sy-vline 
WA_ISFIRENRCD_STR-INVOICINGSTATUSISINFLUENCED sy-vline 
WA_ISFIRENRCD_STR-BILLFROMPARTYUUID sy-vline 
WA_ISFIRENRCD_STR-BILLFROMPARTY sy-vline 
WA_ISFIRENRCD_STR-BILLFROMPTYAUTHORIZATIONGROUP sy-vline 
WA_ISFIRENRCD_STR-BILLFROMPTYBUSPRPSISCOMPLETED sy-vline 
WA_ISFIRENRCD_STR-CARRIERUUID sy-vline 
WA_ISFIRENRCD_STR-CARRIER sy-vline 
WA_ISFIRENRCD_STR-CARRIERAUTHORIZATIONGROUP sy-vline 
WA_ISFIRENRCD_STR-CARRIERBUSPURPOSEISCOMPLETED sy-vline      INTO ld_text SEPARATED BY SPACE.

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