ABAP Select data from SAP table EFG_STRN_FORM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EFG_STRN_FORM
*  INTO TABLE @DATA(IT_EFG_STRN_FORM2).
*--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_EFG_STRN_FORM INDEX 1 INTO DATA(WA_EFG_STRN_FORM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EFG_STRN_FORM>-EFRM = 1.
<EFG_STRN_FORM>-CLIENT = 1.
<EFG_STRN_FORM>-FORMKEY = 1.
<EFG_STRN_FORM>-FORMCLASS = 1.
<EFG_STRN_FORM>-TDFORM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EFG_STRN_FORM-EXIT_BIBL, sy-vline,
  WA_EFG_STRN_FORM-USER_TOP, sy-vline,
  WA_EFG_STRN_FORM-ORIG_SYST, sy-vline,
  WA_EFG_STRN_FORM-ERDAT, sy-vline,
  WA_EFG_STRN_FORM-ERNAM, sy-vline,
  WA_EFG_STRN_FORM-ERSAP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EFG_STRN_FORM 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_EFG_STRN_FORM 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_EFG_STRN_FORM INTO WA_EFG_STRN_FORM.


*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_EFG_STRN_FORM_STR, 
EFRM TYPE STRING,
CLIENT TYPE STRING,
FORMKEY TYPE STRING,
FORMCLASS TYPE STRING,
TDFORM TYPE STRING,
EXIT_BIBL TYPE STRING,
USER_TOP TYPE STRING,
ORIG_SYST TYPE STRING,
ERDAT TYPE STRING,
ERNAM TYPE STRING,
ERSAP TYPE STRING,
AEDAT TYPE STRING,
AENAM TYPE STRING,
AEUZEIT TYPE STRING,
AESAP TYPE STRING,
DESCRIPT TYPE STRING,
EXIT_INIT TYPE STRING,
EXIT_CLOSE TYPE STRING,
EXIT_DISPATCH TYPE STRING,
FORMTYPE TYPE STRING,
SMARTFORM TYPE STRING,
REFCLIENT TYPE STRING,
ISLINK TYPE STRING,
GENGUID TYPE STRING,
FORMGUID TYPE STRING,
FUNC_NAME TYPE STRING,
FUNC_POOL TYPE STRING,
CROSSFCLASS TYPE STRING,
ADFORM TYPE STRING,
DATADISPATCH_MOD TYPE STRING,
OCL_CONTROL TYPE STRING,
PDF_DYNAMIC TYPE STRING,
ARCH_DOCTYPE TYPE STRING,
REC_ADDR_FORM_ID TYPE STRING,
T_EFRMSTR TYPE STRING,
T_EFRMXV TYPE STRING,
T_EFRMLAN TYPE STRING,
T_EFRMTE TYPE STRING,
T_EFRMSTRTE TYPE STRING,
T_COLLECTION TYPE STRING,
T_COLLECTIONT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EFG_STRN_FORM_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_EFG_STRN_FORM_STR-EFRM sy-vline 
WA_EFG_STRN_FORM_STR-CLIENT sy-vline 
WA_EFG_STRN_FORM_STR-FORMKEY sy-vline 
WA_EFG_STRN_FORM_STR-FORMCLASS sy-vline 
WA_EFG_STRN_FORM_STR-TDFORM sy-vline 
WA_EFG_STRN_FORM_STR-EXIT_BIBL sy-vline 
WA_EFG_STRN_FORM_STR-USER_TOP sy-vline 
WA_EFG_STRN_FORM_STR-ORIG_SYST sy-vline 
WA_EFG_STRN_FORM_STR-ERDAT sy-vline 
WA_EFG_STRN_FORM_STR-ERNAM sy-vline 
WA_EFG_STRN_FORM_STR-ERSAP sy-vline 
WA_EFG_STRN_FORM_STR-AEDAT sy-vline 
WA_EFG_STRN_FORM_STR-AENAM sy-vline 
WA_EFG_STRN_FORM_STR-AEUZEIT sy-vline 
WA_EFG_STRN_FORM_STR-AESAP sy-vline 
WA_EFG_STRN_FORM_STR-DESCRIPT sy-vline 
WA_EFG_STRN_FORM_STR-EXIT_INIT sy-vline 
WA_EFG_STRN_FORM_STR-EXIT_CLOSE sy-vline 
WA_EFG_STRN_FORM_STR-EXIT_DISPATCH sy-vline 
WA_EFG_STRN_FORM_STR-FORMTYPE sy-vline 
WA_EFG_STRN_FORM_STR-SMARTFORM sy-vline 
WA_EFG_STRN_FORM_STR-REFCLIENT sy-vline 
WA_EFG_STRN_FORM_STR-ISLINK sy-vline 
WA_EFG_STRN_FORM_STR-GENGUID sy-vline 
WA_EFG_STRN_FORM_STR-FORMGUID sy-vline 
WA_EFG_STRN_FORM_STR-FUNC_NAME sy-vline 
WA_EFG_STRN_FORM_STR-FUNC_POOL sy-vline 
WA_EFG_STRN_FORM_STR-CROSSFCLASS sy-vline 
WA_EFG_STRN_FORM_STR-ADFORM sy-vline 
WA_EFG_STRN_FORM_STR-DATADISPATCH_MOD sy-vline 
WA_EFG_STRN_FORM_STR-OCL_CONTROL sy-vline 
WA_EFG_STRN_FORM_STR-PDF_DYNAMIC sy-vline 
WA_EFG_STRN_FORM_STR-ARCH_DOCTYPE sy-vline 
WA_EFG_STRN_FORM_STR-REC_ADDR_FORM_ID sy-vline 
WA_EFG_STRN_FORM_STR-T_EFRMSTR sy-vline 
WA_EFG_STRN_FORM_STR-T_EFRMXV sy-vline 
WA_EFG_STRN_FORM_STR-T_EFRMLAN sy-vline 
WA_EFG_STRN_FORM_STR-T_EFRMTE sy-vline 
WA_EFG_STRN_FORM_STR-T_EFRMSTRTE sy-vline 
WA_EFG_STRN_FORM_STR-T_COLLECTION sy-vline 
WA_EFG_STRN_FORM_STR-T_COLLECTIONT sy-vline      INTO ld_text SEPARATED BY SPACE.

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