ABAP Select data from SAP table FMSNRULEC into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FMSNRULEC
*  INTO TABLE @DATA(IT_FMSNRULEC2).
*--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_FMSNRULEC INDEX 1 INTO DATA(WA_FMSNRULEC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FMSNRULEC>-MANDT = 1.
<FMSNRULEC>-VFIPEX = 1.
<FMSNRULEC>-VFICTR = 1.
<FMSNRULEC>-VFONDS = 1.
<FMSNRULEC>-GJAHR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FMSNRULEC-FIKRS, sy-vline,
  WA_FMSNRULEC-DISTRIB, sy-vline,
  WA_FMSNRULEC-DATBIS, sy-vline,
  WA_FMSNRULEC-DATAB, sy-vline,
  WA_FMSNRULEC-DBACTION, sy-vline,
  WA_FMSNRULEC-TACTION, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FMSNRULEC 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_FMSNRULEC 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_FMSNRULEC INTO WA_FMSNRULEC.


*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.

*Conversion exit FMCIL, internal->external for field VFIPEX
CALL FUNCTION 'CONVERSION_EXIT_FMCIL_OUTPUT'
  EXPORTING
    input =                      WA_FMSNRULEC-VFIPEX
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMSNRULEC-VFIPEX.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_FMSNRULEC-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMSNRULEC-GJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit FMCIL, internal->external for field PCFIPEX
CALL FUNCTION 'CONVERSION_EXIT_FMCIL_OUTPUT'
  EXPORTING
    input =                      WA_FMSNRULEC-PCFIPEX
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMSNRULEC-PCFIPEX.
WRITE:/ 'New Value:', ld_input.

*Conversion exit FMCIL, internal->external for field CCFIPEX
CALL FUNCTION 'CONVERSION_EXIT_FMCIL_OUTPUT'
  EXPORTING
    input =                      WA_FMSNRULEC-CCFIPEX
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMSNRULEC-CCFIPEX.
WRITE:/ 'New Value:', ld_input.

*Conversion exit FMCIL, internal->external for field HHFIPEX
CALL FUNCTION 'CONVERSION_EXIT_FMCIL_OUTPUT'
  EXPORTING
    input =                      WA_FMSNRULEC-HHFIPEX
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMSNRULEC-HHFIPEX.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_FMSNRULEC_STR, 
MANDT TYPE STRING,
VFIPEX TYPE STRING,
VFICTR TYPE STRING,
VFONDS TYPE STRING,
GJAHR TYPE STRING,
FIKRS TYPE STRING,
DISTRIB TYPE STRING,
DATBIS TYPE STRING,
DATAB TYPE STRING,
DBACTION TYPE STRING,
TACTION TYPE STRING,
AENNAME TYPE STRING,
PCOLTYP TYPE STRING,
PCFIPEX TYPE STRING,
PCFICTR TYPE STRING,
PCFONDS TYPE STRING,
PCQUANTITY TYPE STRING,
PCBUDGET TYPE STRING,
PCACTUAL TYPE STRING,
PBUDGDAT TYPE STRING,
PDISTDAT TYPE STRING,
CCOLTYP TYPE STRING,
CCFIPEX TYPE STRING,
CCFICTR TYPE STRING,
CCFONDS TYPE STRING,
CCQUANTITY TYPE STRING,
CCBUDGET TYPE STRING,
CCACTUAL TYPE STRING,
CBUDGDAT TYPE STRING,
CDISTDAT TYPE STRING,
HHFIPEX TYPE STRING,
HHFICTR TYPE STRING,
HHFONDS TYPE STRING,
DEAKTIV TYPE STRING,
SNERROR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FMSNRULEC_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_FMSNRULEC_STR-MANDT sy-vline 
WA_FMSNRULEC_STR-VFIPEX sy-vline 
WA_FMSNRULEC_STR-VFICTR sy-vline 
WA_FMSNRULEC_STR-VFONDS sy-vline 
WA_FMSNRULEC_STR-GJAHR sy-vline 
WA_FMSNRULEC_STR-FIKRS sy-vline 
WA_FMSNRULEC_STR-DISTRIB sy-vline 
WA_FMSNRULEC_STR-DATBIS sy-vline 
WA_FMSNRULEC_STR-DATAB sy-vline 
WA_FMSNRULEC_STR-DBACTION sy-vline 
WA_FMSNRULEC_STR-TACTION sy-vline 
WA_FMSNRULEC_STR-AENNAME sy-vline 
WA_FMSNRULEC_STR-PCOLTYP sy-vline 
WA_FMSNRULEC_STR-PCFIPEX sy-vline 
WA_FMSNRULEC_STR-PCFICTR sy-vline 
WA_FMSNRULEC_STR-PCFONDS sy-vline 
WA_FMSNRULEC_STR-PCQUANTITY sy-vline 
WA_FMSNRULEC_STR-PCBUDGET sy-vline 
WA_FMSNRULEC_STR-PCACTUAL sy-vline 
WA_FMSNRULEC_STR-PBUDGDAT sy-vline 
WA_FMSNRULEC_STR-PDISTDAT sy-vline 
WA_FMSNRULEC_STR-CCOLTYP sy-vline 
WA_FMSNRULEC_STR-CCFIPEX sy-vline 
WA_FMSNRULEC_STR-CCFICTR sy-vline 
WA_FMSNRULEC_STR-CCFONDS sy-vline 
WA_FMSNRULEC_STR-CCQUANTITY sy-vline 
WA_FMSNRULEC_STR-CCBUDGET sy-vline 
WA_FMSNRULEC_STR-CCACTUAL sy-vline 
WA_FMSNRULEC_STR-CBUDGDAT sy-vline 
WA_FMSNRULEC_STR-CDISTDAT sy-vline 
WA_FMSNRULEC_STR-HHFIPEX sy-vline 
WA_FMSNRULEC_STR-HHFICTR sy-vline 
WA_FMSNRULEC_STR-HHFONDS sy-vline 
WA_FMSNRULEC_STR-DEAKTIV sy-vline 
WA_FMSNRULEC_STR-SNERROR sy-vline      INTO ld_text SEPARATED BY SPACE.

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