ABAP Select data from SAP table IHEDGINGREL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IHEDGINGREL
*  INTO TABLE @DATA(IT_IHEDGINGREL2).
*--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_IHEDGINGREL INDEX 1 INTO DATA(WA_IHEDGINGREL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IHEDGINGREL>-MANDT = 1.
<IHEDGINGREL>-HEDGINGRELATIONSHIPUUID = 1.
<IHEDGINGREL>-HEDGINGRELATIONSHIP = 1.
<IHEDGINGREL>-HEDGINGRELATIONSHIPFISCALYEAR = 1.
<IHEDGINGREL>-HEDGINGRELATIONSHIPNAME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IHEDGINGREL-COMPANYCODE, sy-vline,
  WA_IHEDGINGREL-TREASURYVALUATIONAREA, sy-vline,
  WA_IHEDGINGREL-HEDGINGRELATIONSHIPSTATUS, sy-vline,
  WA_IHEDGINGREL-HEDGINGPROFILE, sy-vline,
  WA_IHEDGINGREL-TRSYHEDGINGRELSHPRISKCURRENCY, sy-vline,
  WA_IHEDGINGREL-TRSYCOSTHDGGRSRVCALCRULE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IHEDGINGREL 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_IHEDGINGREL 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_IHEDGINGREL INTO WA_IHEDGINGREL.


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

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

*Conversion exit ALPHA, internal->external for field HEDGINGPROFILE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IHEDGINGREL-HEDGINGPROFILE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IHEDGINGREL-HEDGINGPROFILE.
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_IHEDGINGREL_STR, 
MANDT TYPE STRING,
HEDGINGRELATIONSHIPUUID TYPE STRING,
HEDGINGRELATIONSHIP TYPE STRING,
HEDGINGRELATIONSHIPFISCALYEAR TYPE STRING,
HEDGINGRELATIONSHIPNAME TYPE STRING,
COMPANYCODE TYPE STRING,
TREASURYVALUATIONAREA TYPE STRING,
HEDGINGRELATIONSHIPSTATUS TYPE STRING,
HEDGINGPROFILE TYPE STRING,
TRSYHEDGINGRELSHPRISKCURRENCY TYPE STRING,
TRSYCOSTHDGGRSRVCALCRULE TYPE STRING,
HEDGINGAREA TYPE STRING,
FINNETOPENEXPOSURESNAPSHOT TYPE STRING,
TRSYHDGGRELSHPDSGNTNSPLITID TYPE STRING,
TRSYHDGGRELSHPBALSHTRECGNDATE TYPE STRING,
TRSYALTVRECLASSIFICATIONDATE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IHEDGINGREL_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_IHEDGINGREL_STR-MANDT sy-vline 
WA_IHEDGINGREL_STR-HEDGINGRELATIONSHIPUUID sy-vline 
WA_IHEDGINGREL_STR-HEDGINGRELATIONSHIP sy-vline 
WA_IHEDGINGREL_STR-HEDGINGRELATIONSHIPFISCALYEAR sy-vline 
WA_IHEDGINGREL_STR-HEDGINGRELATIONSHIPNAME sy-vline 
WA_IHEDGINGREL_STR-COMPANYCODE sy-vline 
WA_IHEDGINGREL_STR-TREASURYVALUATIONAREA sy-vline 
WA_IHEDGINGREL_STR-HEDGINGRELATIONSHIPSTATUS sy-vline 
WA_IHEDGINGREL_STR-HEDGINGPROFILE sy-vline 
WA_IHEDGINGREL_STR-TRSYHEDGINGRELSHPRISKCURRENCY sy-vline 
WA_IHEDGINGREL_STR-TRSYCOSTHDGGRSRVCALCRULE sy-vline 
WA_IHEDGINGREL_STR-HEDGINGAREA sy-vline 
WA_IHEDGINGREL_STR-FINNETOPENEXPOSURESNAPSHOT sy-vline 
WA_IHEDGINGREL_STR-TRSYHDGGRELSHPDSGNTNSPLITID sy-vline 
WA_IHEDGINGREL_STR-TRSYHDGGRELSHPBALSHTRECGNDATE sy-vline 
WA_IHEDGINGREL_STR-TRSYALTVRECLASSIFICATIONDATE sy-vline      INTO ld_text SEPARATED BY SPACE.

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