ABAP Select data from SAP table FIS_TMPL_ENTITY_FLDS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FIS_TMPL_ENTITY_FLDS
*  INTO TABLE @DATA(IT_FIS_TMPL_ENTITY_FLDS2).
*--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_FIS_TMPL_ENTITY_FLDS INDEX 1 INTO DATA(WA_FIS_TMPL_ENTITY_FLDS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FIS_TMPL_ENTITY_FLDS>-ENTITYNAME = 1.
<FIS_TMPL_ENTITY_FLDS>-ENTITYTECHNAME = 1.
<FIS_TMPL_ENTITY_FLDS>-FIELDNAME = 1.
<FIS_TMPL_ENTITY_FLDS>-FIELDDESC = 1.
<FIS_TMPL_ENTITY_FLDS>-FIELDTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FIS_TMPL_ENTITY_FLDS-FIELDSHLP, sy-vline,
  WA_FIS_TMPL_ENTITY_FLDS-FIELDGROUP, sy-vline,
  WA_FIS_TMPL_ENTITY_FLDS-MANDATORY, sy-vline,
  WA_FIS_TMPL_ENTITY_FLDS-READONLY, sy-vline,
  WA_FIS_TMPL_ENTITY_FLDS-VISIBLE, sy-vline,
  WA_FIS_TMPL_ENTITY_FLDS-FLDCUSTOMIZABLE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FIS_TMPL_ENTITY_FLDS 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_FIS_TMPL_ENTITY_FLDS 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_FIS_TMPL_ENTITY_FLDS INTO WA_FIS_TMPL_ENTITY_FLDS.


*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_FIS_TMPL_ENTITY_FLDS_STR, 
ENTITYNAME TYPE STRING,
ENTITYTECHNAME TYPE STRING,
FIELDNAME TYPE STRING,
FIELDDESC TYPE STRING,
FIELDTYPE TYPE STRING,
FIELDSHLP TYPE STRING,
FIELDGROUP TYPE STRING,
MANDATORY TYPE STRING,
READONLY TYPE STRING,
VISIBLE TYPE STRING,
FLDCUSTOMIZABLE TYPE STRING,
FIELDTECHNAME TYPE STRING,
LENGTH_DEC TYPE STRING,
ISAMOUNT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FIS_TMPL_ENTITY_FLDS_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_FIS_TMPL_ENTITY_FLDS_STR-ENTITYNAME sy-vline 
WA_FIS_TMPL_ENTITY_FLDS_STR-ENTITYTECHNAME sy-vline 
WA_FIS_TMPL_ENTITY_FLDS_STR-FIELDNAME sy-vline 
WA_FIS_TMPL_ENTITY_FLDS_STR-FIELDDESC sy-vline 
WA_FIS_TMPL_ENTITY_FLDS_STR-FIELDTYPE sy-vline 
WA_FIS_TMPL_ENTITY_FLDS_STR-FIELDSHLP sy-vline 
WA_FIS_TMPL_ENTITY_FLDS_STR-FIELDGROUP sy-vline 
WA_FIS_TMPL_ENTITY_FLDS_STR-MANDATORY sy-vline 
WA_FIS_TMPL_ENTITY_FLDS_STR-READONLY sy-vline 
WA_FIS_TMPL_ENTITY_FLDS_STR-VISIBLE sy-vline 
WA_FIS_TMPL_ENTITY_FLDS_STR-FLDCUSTOMIZABLE sy-vline 
WA_FIS_TMPL_ENTITY_FLDS_STR-FIELDTECHNAME sy-vline 
WA_FIS_TMPL_ENTITY_FLDS_STR-LENGTH_DEC sy-vline 
WA_FIS_TMPL_ENTITY_FLDS_STR-ISAMOUNT sy-vline      INTO ld_text SEPARATED BY SPACE.

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