ABAP Select data from SAP table HREFI_UPD_STRUC into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM HREFI_UPD_STRUC
*  INTO TABLE @DATA(IT_HREFI_UPD_STRUC2).
*--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_HREFI_UPD_STRUC INDEX 1 INTO DATA(WA_HREFI_UPD_STRUC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<HREFI_UPD_STRUC>-MOLGA = 1.
<HREFI_UPD_STRUC>-GLBID = 1.
<HREFI_UPD_STRUC>-FORM = 1.
<HREFI_UPD_STRUC>-PRDNI = 1.
<HREFI_UPD_STRUC>-ISSUEDATE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_HREFI_UPD_STRUC-RECORDNO, sy-vline,
  WA_HREFI_UPD_STRUC-PERNR, sy-vline,
  WA_HREFI_UPD_STRUC-INFTY, sy-vline,
  WA_HREFI_UPD_STRUC-SUBTY, sy-vline,
  WA_HREFI_UPD_STRUC-BEGDA, sy-vline,
  WA_HREFI_UPD_STRUC-EFFDA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_HREFI_UPD_STRUC 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_HREFI_UPD_STRUC 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_HREFI_UPD_STRUC INTO WA_HREFI_UPD_STRUC.


*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_HREFI_UPD_STRUC_STR, 
MOLGA TYPE STRING,
GLBID TYPE STRING,
FORM TYPE STRING,
PRDNI TYPE STRING,
ISSUEDATE TYPE STRING,
RECORDNO TYPE STRING,
PERNR TYPE STRING,
INFTY TYPE STRING,
SUBTY TYPE STRING,
BEGDA TYPE STRING,
EFFDA TYPE STRING,
TDNUM TYPE STRING,
TDREF TYPE STRING,
ABKRS TYPE STRING,
GGTIME TYPE STRING,
GGDATE TYPE STRING,
CORRID TYPE STRING,
NAME TYPE STRING,
SAGRP TYPE STRING,
DOCTY TYPE STRING,
WORKS_NO TYPE STRING,
BLANK_IND TYPE STRING,
PROCESSED TYPE STRING,
UPDATED TYPE STRING,
CATEGORY TYPE STRING,
UNAME TYPE STRING,
PDATE TYPE STRING,
PTIME TYPE STRING,
MSGID TYPE STRING,
MSGTY TYPE STRING,
MSGNO TYPE STRING,
MSGV1 TYPE STRING,
MSGV2 TYPE STRING,
MSGV3 TYPE STRING,
MSGV4 TYPE STRING,
ATEXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_HREFI_UPD_STRUC_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_HREFI_UPD_STRUC_STR-MOLGA sy-vline 
WA_HREFI_UPD_STRUC_STR-GLBID sy-vline 
WA_HREFI_UPD_STRUC_STR-FORM sy-vline 
WA_HREFI_UPD_STRUC_STR-PRDNI sy-vline 
WA_HREFI_UPD_STRUC_STR-ISSUEDATE sy-vline 
WA_HREFI_UPD_STRUC_STR-RECORDNO sy-vline 
WA_HREFI_UPD_STRUC_STR-PERNR sy-vline 
WA_HREFI_UPD_STRUC_STR-INFTY sy-vline 
WA_HREFI_UPD_STRUC_STR-SUBTY sy-vline 
WA_HREFI_UPD_STRUC_STR-BEGDA sy-vline 
WA_HREFI_UPD_STRUC_STR-EFFDA sy-vline 
WA_HREFI_UPD_STRUC_STR-TDNUM sy-vline 
WA_HREFI_UPD_STRUC_STR-TDREF sy-vline 
WA_HREFI_UPD_STRUC_STR-ABKRS sy-vline 
WA_HREFI_UPD_STRUC_STR-GGTIME sy-vline 
WA_HREFI_UPD_STRUC_STR-GGDATE sy-vline 
WA_HREFI_UPD_STRUC_STR-CORRID sy-vline 
WA_HREFI_UPD_STRUC_STR-NAME sy-vline 
WA_HREFI_UPD_STRUC_STR-SAGRP sy-vline 
WA_HREFI_UPD_STRUC_STR-DOCTY sy-vline 
WA_HREFI_UPD_STRUC_STR-WORKS_NO sy-vline 
WA_HREFI_UPD_STRUC_STR-BLANK_IND sy-vline 
WA_HREFI_UPD_STRUC_STR-PROCESSED sy-vline 
WA_HREFI_UPD_STRUC_STR-UPDATED sy-vline 
WA_HREFI_UPD_STRUC_STR-CATEGORY sy-vline 
WA_HREFI_UPD_STRUC_STR-UNAME sy-vline 
WA_HREFI_UPD_STRUC_STR-PDATE sy-vline 
WA_HREFI_UPD_STRUC_STR-PTIME sy-vline 
WA_HREFI_UPD_STRUC_STR-MSGID sy-vline 
WA_HREFI_UPD_STRUC_STR-MSGTY sy-vline 
WA_HREFI_UPD_STRUC_STR-MSGNO sy-vline 
WA_HREFI_UPD_STRUC_STR-MSGV1 sy-vline 
WA_HREFI_UPD_STRUC_STR-MSGV2 sy-vline 
WA_HREFI_UPD_STRUC_STR-MSGV3 sy-vline 
WA_HREFI_UPD_STRUC_STR-MSGV4 sy-vline 
WA_HREFI_UPD_STRUC_STR-ATEXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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