ABAP Select data from SAP table EHFNDD_REQ_RN_D into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EHFNDD_REQ_RN_D
*  INTO TABLE @DATA(IT_EHFNDD_REQ_RN_D2).
*--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_EHFNDD_REQ_RN_D INDEX 1 INTO DATA(WA_EHFNDD_REQ_RN_D2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EHFNDD_REQ_RN_D>-DB_KEY = 1.
<EHFNDD_REQ_RN_D>-ID = 1.
<EHFNDD_REQ_RN_D>-DOCLEVEL = 1.
<EHFNDD_REQ_RN_D>-NAME = 1.
<EHFNDD_REQ_RN_D>-DESCRIPTION = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EHFNDD_REQ_RN_D-AMENDMENTDATE, sy-vline,
  WA_EHFNDD_REQ_RN_D-AMENDMENTREF, sy-vline,
  WA_EHFNDD_REQ_RN_D-CHANGED, sy-vline,
  WA_EHFNDD_REQ_RN_D-JURISDICTION, sy-vline,
  WA_EHFNDD_REQ_RN_D-DELETED, sy-vline,
  WA_EHFNDD_REQ_RN_D-INITIALIZE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EHFNDD_REQ_RN_D 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_EHFNDD_REQ_RN_D 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_EHFNDD_REQ_RN_D INTO WA_EHFNDD_REQ_RN_D.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_EHFNDD_REQ_RN_D_STR, 
DB_KEY TYPE STRING,
ID TYPE STRING,
DOCLEVEL TYPE STRING,
NAME TYPE STRING,
DESCRIPTION TYPE STRING,
AMENDMENTDATE TYPE STRING,
AMENDMENTREF TYPE STRING,
CHANGED TYPE STRING,
JURISDICTION TYPE STRING,
DELETED TYPE STRING,
INITIALIZE TYPE STRING,
CITATION TYPE STRING,
PARENTID TYPE STRING,
PARENTCITATION TYPE STRING,
PARENTNAME TYPE STRING,
PARENTDESCRIPTION TYPE STRING,
DOCLINK TYPE STRING,
STRIKELINK TYPE STRING,
TEXTCATEGORY TYPE STRING,
GEOGRAPHYCODE TYPE STRING,
GOVERNINGBODY TYPE STRING,
BREADCRUMBS TYPE STRING,
IMPORT_STATUS TYPE STRING,
COMPL_REQ_KEY TYPE STRING,
TEXT TYPE STRING,
COMPL_REQ_DATETIME_CH TYPE STRING,
REQ_FOR_UPDATE_CNT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EHFNDD_REQ_RN_D_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_EHFNDD_REQ_RN_D_STR-DB_KEY sy-vline 
WA_EHFNDD_REQ_RN_D_STR-ID sy-vline 
WA_EHFNDD_REQ_RN_D_STR-DOCLEVEL sy-vline 
WA_EHFNDD_REQ_RN_D_STR-NAME sy-vline 
WA_EHFNDD_REQ_RN_D_STR-DESCRIPTION sy-vline 
WA_EHFNDD_REQ_RN_D_STR-AMENDMENTDATE sy-vline 
WA_EHFNDD_REQ_RN_D_STR-AMENDMENTREF sy-vline 
WA_EHFNDD_REQ_RN_D_STR-CHANGED sy-vline 
WA_EHFNDD_REQ_RN_D_STR-JURISDICTION sy-vline 
WA_EHFNDD_REQ_RN_D_STR-DELETED sy-vline 
WA_EHFNDD_REQ_RN_D_STR-INITIALIZE sy-vline 
WA_EHFNDD_REQ_RN_D_STR-CITATION sy-vline 
WA_EHFNDD_REQ_RN_D_STR-PARENTID sy-vline 
WA_EHFNDD_REQ_RN_D_STR-PARENTCITATION sy-vline 
WA_EHFNDD_REQ_RN_D_STR-PARENTNAME sy-vline 
WA_EHFNDD_REQ_RN_D_STR-PARENTDESCRIPTION sy-vline 
WA_EHFNDD_REQ_RN_D_STR-DOCLINK sy-vline 
WA_EHFNDD_REQ_RN_D_STR-STRIKELINK sy-vline 
WA_EHFNDD_REQ_RN_D_STR-TEXTCATEGORY sy-vline 
WA_EHFNDD_REQ_RN_D_STR-GEOGRAPHYCODE sy-vline 
WA_EHFNDD_REQ_RN_D_STR-GOVERNINGBODY sy-vline 
WA_EHFNDD_REQ_RN_D_STR-BREADCRUMBS sy-vline 
WA_EHFNDD_REQ_RN_D_STR-IMPORT_STATUS sy-vline 
WA_EHFNDD_REQ_RN_D_STR-COMPL_REQ_KEY sy-vline 
WA_EHFNDD_REQ_RN_D_STR-TEXT sy-vline 
WA_EHFNDD_REQ_RN_D_STR-COMPL_REQ_DATETIME_CH sy-vline 
WA_EHFNDD_REQ_RN_D_STR-REQ_FOR_UPDATE_CNT sy-vline      INTO ld_text SEPARATED BY SPACE.

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