ABAP Select data from SAP table FPB_RULE_VAR_SAVE_INPUT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FPB_RULE_VAR_SAVE_INPUT
*  INTO TABLE @DATA(IT_FPB_RULE_VAR_SAVE_INPUT2).
*--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_FPB_RULE_VAR_SAVE_INPUT INDEX 1 INTO DATA(WA_FPB_RULE_VAR_SAVE_INPUT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FPB_RULE_VAR_SAVE_INPUT>-MONAPPL = 1.
<FPB_RULE_VAR_SAVE_INPUT>-UNAME = 1.
<FPB_RULE_VAR_SAVE_INPUT>-RULEID = 1.
<FPB_RULE_VAR_SAVE_INPUT>-RULENAME = 1.
<FPB_RULE_VAR_SAVE_INPUT>-KFSPEC1 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FPB_RULE_VAR_SAVE_INPUT-KFSPEC2, sy-vline,
  WA_FPB_RULE_VAR_SAVE_INPUT-LIMITREL, sy-vline,
  WA_FPB_RULE_VAR_SAVE_INPUT-LIMITABS, sy-vline,
  WA_FPB_RULE_VAR_SAVE_INPUT-WAERS, sy-vline,
  WA_FPB_RULE_VAR_SAVE_INPUT-SIGN, sy-vline,
  WA_FPB_RULE_VAR_SAVE_INPUT-TIMERANGE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FPB_RULE_VAR_SAVE_INPUT 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_FPB_RULE_VAR_SAVE_INPUT 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_FPB_RULE_VAR_SAVE_INPUT INTO WA_FPB_RULE_VAR_SAVE_INPUT.


*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_FPB_RULE_VAR_SAVE_INPUT_STR, 
MONAPPL TYPE STRING,
UNAME TYPE STRING,
RULEID TYPE STRING,
RULENAME TYPE STRING,
KFSPEC1 TYPE STRING,
KFSPEC2 TYPE STRING,
LIMITREL TYPE STRING,
LIMITABS TYPE STRING,
WAERS TYPE STRING,
SIGN TYPE STRING,
TIMERANGE TYPE STRING,
ADMINRULE TYPE STRING,
UNCHANGEABLE TYPE STRING,
OBJECT_TAB TYPE STRING,
KFSPECGL_TAB TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FPB_RULE_VAR_SAVE_INPUT_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_FPB_RULE_VAR_SAVE_INPUT_STR-MONAPPL sy-vline 
WA_FPB_RULE_VAR_SAVE_INPUT_STR-UNAME sy-vline 
WA_FPB_RULE_VAR_SAVE_INPUT_STR-RULEID sy-vline 
WA_FPB_RULE_VAR_SAVE_INPUT_STR-RULENAME sy-vline 
WA_FPB_RULE_VAR_SAVE_INPUT_STR-KFSPEC1 sy-vline 
WA_FPB_RULE_VAR_SAVE_INPUT_STR-KFSPEC2 sy-vline 
WA_FPB_RULE_VAR_SAVE_INPUT_STR-LIMITREL sy-vline 
WA_FPB_RULE_VAR_SAVE_INPUT_STR-LIMITABS sy-vline 
WA_FPB_RULE_VAR_SAVE_INPUT_STR-WAERS sy-vline 
WA_FPB_RULE_VAR_SAVE_INPUT_STR-SIGN sy-vline 
WA_FPB_RULE_VAR_SAVE_INPUT_STR-TIMERANGE sy-vline 
WA_FPB_RULE_VAR_SAVE_INPUT_STR-ADMINRULE sy-vline 
WA_FPB_RULE_VAR_SAVE_INPUT_STR-UNCHANGEABLE sy-vline 
WA_FPB_RULE_VAR_SAVE_INPUT_STR-OBJECT_TAB sy-vline 
WA_FPB_RULE_VAR_SAVE_INPUT_STR-KFSPECGL_TAB sy-vline      INTO ld_text SEPARATED BY SPACE.

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