ABAP Select data from SAP table FIS_TMPL_HEADER 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_HEADER 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_HEADER. 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_HEADER 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_HEADER TYPE STANDARD TABLE OF FIS_TMPL_HEADER,
      WA_FIS_TMPL_HEADER TYPE FIS_TMPL_HEADER,
      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_HEADER> TYPE FIS_TMPL_HEADER.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FIS_TMPL_HEADER
*  INTO TABLE @DATA(IT_FIS_TMPL_HEADER2).
*--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_HEADER INDEX 1 INTO DATA(WA_FIS_TMPL_HEADER2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FIS_TMPL_HEADER>-APPCODE = 1.
<FIS_TMPL_HEADER>-TEMPLATEID = 1.
<FIS_TMPL_HEADER>-TEMPLATEDESC = 1.
<FIS_TMPL_HEADER>-TEMPLATECATEGORY = 1.
<FIS_TMPL_HEADER>-ACCESSPOLICY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FIS_TMPL_HEADER-PUBLIC, sy-vline,
  WA_FIS_TMPL_HEADER-COMPANYCODE, sy-vline,
  WA_FIS_TMPL_HEADER-CREATEDBY, sy-vline,
  WA_FIS_TMPL_HEADER-CREATEDON, sy-vline,
  WA_FIS_TMPL_HEADER-CREATEDAT, sy-vline,
  WA_FIS_TMPL_HEADER-CHANGEDBY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FIS_TMPL_HEADER 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_HEADER 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_HEADER INTO WA_FIS_TMPL_HEADER.


*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_HEADER_STR, 
APPCODE TYPE STRING,
TEMPLATEID TYPE STRING,
TEMPLATEDESC TYPE STRING,
TEMPLATECATEGORY TYPE STRING,
ACCESSPOLICY TYPE STRING,
PUBLIC TYPE STRING,
COMPANYCODE TYPE STRING,
CREATEDBY TYPE STRING,
CREATEDON TYPE STRING,
CREATEDAT TYPE STRING,
CHANGEDBY TYPE STRING,
CHANGEDON TYPE STRING,
CHANGEDAT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FIS_TMPL_HEADER_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_HEADER_STR-APPCODE sy-vline 
WA_FIS_TMPL_HEADER_STR-TEMPLATEID sy-vline 
WA_FIS_TMPL_HEADER_STR-TEMPLATEDESC sy-vline 
WA_FIS_TMPL_HEADER_STR-TEMPLATECATEGORY sy-vline 
WA_FIS_TMPL_HEADER_STR-ACCESSPOLICY sy-vline 
WA_FIS_TMPL_HEADER_STR-PUBLIC sy-vline 
WA_FIS_TMPL_HEADER_STR-COMPANYCODE sy-vline 
WA_FIS_TMPL_HEADER_STR-CREATEDBY sy-vline 
WA_FIS_TMPL_HEADER_STR-CREATEDON sy-vline 
WA_FIS_TMPL_HEADER_STR-CREATEDAT sy-vline 
WA_FIS_TMPL_HEADER_STR-CHANGEDBY sy-vline 
WA_FIS_TMPL_HEADER_STR-CHANGEDON sy-vline 
WA_FIS_TMPL_HEADER_STR-CHANGEDAT sy-vline      INTO ld_text SEPARATED BY SPACE.

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