ABAP Select data from SAP table EHFNDS_REQ_IMP_GC_DOC_ROOT_ST into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EHFNDS_REQ_IMP_GC_DOC_ROOT_ST
*  INTO TABLE @DATA(IT_EHFNDS_REQ_IMP_GC_DOC_ROOT_ST2).
*--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_EHFNDS_REQ_IMP_GC_DOC_ROOT_ST INDEX 1 INTO DATA(WA_EHFNDS_REQ_IMP_GC_DOC_ROOT_ST2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EHFNDS_REQ_IMP_GC_DOC_ROOT_ST>-DOCLEVEL = 1.
<EHFNDS_REQ_IMP_GC_DOC_ROOT_ST>-NAME = 1.
<EHFNDS_REQ_IMP_GC_DOC_ROOT_ST>-DESCRIPTION = 1.
<EHFNDS_REQ_IMP_GC_DOC_ROOT_ST>-AMENDMENTDATE = 1.
<EHFNDS_REQ_IMP_GC_DOC_ROOT_ST>-AMENDMENTREF = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EHFNDS_REQ_IMP_GC_DOC_ROOT_ST-CHANGED, sy-vline,
  WA_EHFNDS_REQ_IMP_GC_DOC_ROOT_ST-JURISDICTION, sy-vline,
  WA_EHFNDS_REQ_IMP_GC_DOC_ROOT_ST-DELETED, sy-vline,
  WA_EHFNDS_REQ_IMP_GC_DOC_ROOT_ST-INITIALIZE, sy-vline,
  WA_EHFNDS_REQ_IMP_GC_DOC_ROOT_ST-CITATION, sy-vline,
  WA_EHFNDS_REQ_IMP_GC_DOC_ROOT_ST-PARENTID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EHFNDS_REQ_IMP_GC_DOC_ROOT_ST 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_EHFNDS_REQ_IMP_GC_DOC_ROOT_ST 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_EHFNDS_REQ_IMP_GC_DOC_ROOT_ST INTO WA_EHFNDS_REQ_IMP_GC_DOC_ROOT_ST.


*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_EHFNDS_REQ_IMP_GC_DOC_ROOT_ST_STR, 
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_EHFNDS_REQ_IMP_GC_DOC_ROOT_ST_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_EHFNDS_REQ_IMP_GC_DOC_ROOT_ST_STR-DOCLEVEL sy-vline 
WA_EHFNDS_REQ_IMP_GC_DOC_ROOT_ST_STR-NAME sy-vline 
WA_EHFNDS_REQ_IMP_GC_DOC_ROOT_ST_STR-DESCRIPTION sy-vline 
WA_EHFNDS_REQ_IMP_GC_DOC_ROOT_ST_STR-AMENDMENTDATE sy-vline 
WA_EHFNDS_REQ_IMP_GC_DOC_ROOT_ST_STR-AMENDMENTREF sy-vline 
WA_EHFNDS_REQ_IMP_GC_DOC_ROOT_ST_STR-CHANGED sy-vline 
WA_EHFNDS_REQ_IMP_GC_DOC_ROOT_ST_STR-JURISDICTION sy-vline 
WA_EHFNDS_REQ_IMP_GC_DOC_ROOT_ST_STR-DELETED sy-vline 
WA_EHFNDS_REQ_IMP_GC_DOC_ROOT_ST_STR-INITIALIZE sy-vline 
WA_EHFNDS_REQ_IMP_GC_DOC_ROOT_ST_STR-CITATION sy-vline 
WA_EHFNDS_REQ_IMP_GC_DOC_ROOT_ST_STR-PARENTID sy-vline 
WA_EHFNDS_REQ_IMP_GC_DOC_ROOT_ST_STR-PARENTCITATION sy-vline 
WA_EHFNDS_REQ_IMP_GC_DOC_ROOT_ST_STR-PARENTNAME sy-vline 
WA_EHFNDS_REQ_IMP_GC_DOC_ROOT_ST_STR-PARENTDESCRIPTION sy-vline 
WA_EHFNDS_REQ_IMP_GC_DOC_ROOT_ST_STR-DOCLINK sy-vline 
WA_EHFNDS_REQ_IMP_GC_DOC_ROOT_ST_STR-STRIKELINK sy-vline 
WA_EHFNDS_REQ_IMP_GC_DOC_ROOT_ST_STR-TEXTCATEGORY sy-vline 
WA_EHFNDS_REQ_IMP_GC_DOC_ROOT_ST_STR-GEOGRAPHYCODE sy-vline 
WA_EHFNDS_REQ_IMP_GC_DOC_ROOT_ST_STR-GOVERNINGBODY sy-vline 
WA_EHFNDS_REQ_IMP_GC_DOC_ROOT_ST_STR-BREADCRUMBS sy-vline 
WA_EHFNDS_REQ_IMP_GC_DOC_ROOT_ST_STR-IMPORT_STATUS sy-vline 
WA_EHFNDS_REQ_IMP_GC_DOC_ROOT_ST_STR-COMPL_REQ_KEY sy-vline 
WA_EHFNDS_REQ_IMP_GC_DOC_ROOT_ST_STR-TEXT sy-vline 
WA_EHFNDS_REQ_IMP_GC_DOC_ROOT_ST_STR-COMPL_REQ_DATETIME_CH sy-vline 
WA_EHFNDS_REQ_IMP_GC_DOC_ROOT_ST_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.