ABAP Select data from SAP table RFVIMASP01 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RFVIMASP01 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 RFVIMASP01. 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 RFVIMASP01 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_RFVIMASP01 TYPE STANDARD TABLE OF RFVIMASP01,
      WA_RFVIMASP01 TYPE RFVIMASP01,
      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: <RFVIMASP01> TYPE RFVIMASP01.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RFVIMASP01.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RFVIMASP01
  INTO TABLE IT_RFVIMASP01.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RFVIMASP01
*  INTO TABLE @DATA(IT_RFVIMASP012).
*--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_RFVIMASP01 INDEX 1 INTO DATA(WA_RFVIMASP012).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RFVIMASP01 ASSIGNING <RFVIMASP01>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RFVIMASP01>-SMSPID = 1.
<RFVIMASP01>-SLINNO = 1.
<RFVIMASP01>-SSUBNO = 1.
<RFVIMASP01>-OFFSWT = 1.
<RFVIMASP01>-OBJTYP = 1.

ENDLOOP.

LOOP AT IT_RFVIMASP01 INTO WA_RFVIMASP01.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RFVIMASP01-BUKRSA, sy-vline,
  WA_RFVIMASP01-CLSAGE, sy-vline,
  WA_RFVIMASP01-CLSIZE, sy-vline,
  WA_RFVIMASP01-CLSFAF, sy-vline,
  WA_RFVIMASP01-CLSLOC, sy-vline,
  WA_RFVIMASP01-AGEREV, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RFVIMASP01 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_RFVIMASP01 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_RFVIMASP01 INTO WA_RFVIMASP01.


*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 ISOLA, internal->external for field LANGID
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_RFVIMASP01-LANGID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFVIMASP01-LANGID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field AREAKEY
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RFVIMASP01-AREAKEY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFVIMASP01-AREAKEY.
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_RFVIMASP01_STR, 
SMSPID TYPE STRING,
SLINNO TYPE STRING,
SSUBNO TYPE STRING,
OFFSWT TYPE STRING,
OBJTYP TYPE STRING,
BUKRSA TYPE STRING,
CLSAGE TYPE STRING,
CLSIZE TYPE STRING,
CLSFAF TYPE STRING,
CLSLOC TYPE STRING,
AGEREV TYPE STRING,
SIZERV TYPE STRING,
MATBAS TYPE STRING,
MATVLO TYPE STRING,
MATVMI TYPE STRING,
MATVHI TYPE STRING,
MATTXT TYPE STRING,
ADDABS TYPE STRING,
ADDREL TYPE STRING,
OLDVAL TYPE STRING,
OPCVAL TYPE STRING,
PMEZAS TYPE STRING,
ADDSYS TYPE STRING,
NCOSYS TYPE STRING,
NCOUSR TYPE STRING,
BASREL TYPE STRING,
ADJDAT TYPE STRING,
SKOART TYPE STRING,
MSHASF TYPE STRING,
MSHASL TYPE STRING,
MSTYPE TYPE STRING,
DEFCOM TYPE STRING,
LANGID TYPE STRING,
FAFKEY TYPE STRING,
FAFTXT TYPE STRING,
FAFCLS TYPE STRING,
FAFVMS TYPE STRING,
FAFVME TYPE STRING,
FAFABS TYPE STRING,
FAFREL TYPE STRING,
FAFUSE TYPE STRING,
FAFIGN TYPE STRING,
FAFNCL TYPE STRING,
FAFDAT TYPE STRING,
FAFBCL TYPE STRING,
FAFZCL TYPE STRING,
FAFWCL TYPE STRING,
FAFSGN TYPE STRING,
XBOOL1 TYPE STRING,
XBOOL2 TYPE STRING,
XBOOL3 TYPE STRING,
XBOOL4 TYPE STRING,
XBOOL5 TYPE STRING,
XNUMC1 TYPE STRING,
XNUMC2 TYPE STRING,
XNUMC3 TYPE STRING,
XNUMC4 TYPE STRING,
XNUMC5 TYPE STRING,
XREAL1 TYPE STRING,
XREAL2 TYPE STRING,
XREAL3 TYPE STRING,
XREAL4 TYPE STRING,
XREAL5 TYPE STRING,
XREAL6 TYPE STRING,
XREAL7 TYPE STRING,
XREAL8 TYPE STRING,
XREAL9 TYPE STRING,
XCHAR1 TYPE STRING,
XCHAR2 TYPE STRING,
XCHAR3 TYPE STRING,
XCHAR4 TYPE STRING,
XCHAR5 TYPE STRING,
CURRKEY TYPE STRING,
AREAKEY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RFVIMASP01_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_RFVIMASP01_STR-SMSPID sy-vline 
WA_RFVIMASP01_STR-SLINNO sy-vline 
WA_RFVIMASP01_STR-SSUBNO sy-vline 
WA_RFVIMASP01_STR-OFFSWT sy-vline 
WA_RFVIMASP01_STR-OBJTYP sy-vline 
WA_RFVIMASP01_STR-BUKRSA sy-vline 
WA_RFVIMASP01_STR-CLSAGE sy-vline 
WA_RFVIMASP01_STR-CLSIZE sy-vline 
WA_RFVIMASP01_STR-CLSFAF sy-vline 
WA_RFVIMASP01_STR-CLSLOC sy-vline 
WA_RFVIMASP01_STR-AGEREV sy-vline 
WA_RFVIMASP01_STR-SIZERV sy-vline 
WA_RFVIMASP01_STR-MATBAS sy-vline 
WA_RFVIMASP01_STR-MATVLO sy-vline 
WA_RFVIMASP01_STR-MATVMI sy-vline 
WA_RFVIMASP01_STR-MATVHI sy-vline 
WA_RFVIMASP01_STR-MATTXT sy-vline 
WA_RFVIMASP01_STR-ADDABS sy-vline 
WA_RFVIMASP01_STR-ADDREL sy-vline 
WA_RFVIMASP01_STR-OLDVAL sy-vline 
WA_RFVIMASP01_STR-OPCVAL sy-vline 
WA_RFVIMASP01_STR-PMEZAS sy-vline 
WA_RFVIMASP01_STR-ADDSYS sy-vline 
WA_RFVIMASP01_STR-NCOSYS sy-vline 
WA_RFVIMASP01_STR-NCOUSR sy-vline 
WA_RFVIMASP01_STR-BASREL sy-vline 
WA_RFVIMASP01_STR-ADJDAT sy-vline 
WA_RFVIMASP01_STR-SKOART sy-vline 
WA_RFVIMASP01_STR-MSHASF sy-vline 
WA_RFVIMASP01_STR-MSHASL sy-vline 
WA_RFVIMASP01_STR-MSTYPE sy-vline 
WA_RFVIMASP01_STR-DEFCOM sy-vline 
WA_RFVIMASP01_STR-LANGID sy-vline 
WA_RFVIMASP01_STR-FAFKEY sy-vline 
WA_RFVIMASP01_STR-FAFTXT sy-vline 
WA_RFVIMASP01_STR-FAFCLS sy-vline 
WA_RFVIMASP01_STR-FAFVMS sy-vline 
WA_RFVIMASP01_STR-FAFVME sy-vline 
WA_RFVIMASP01_STR-FAFABS sy-vline 
WA_RFVIMASP01_STR-FAFREL sy-vline 
WA_RFVIMASP01_STR-FAFUSE sy-vline 
WA_RFVIMASP01_STR-FAFIGN sy-vline 
WA_RFVIMASP01_STR-FAFNCL sy-vline 
WA_RFVIMASP01_STR-FAFDAT sy-vline 
WA_RFVIMASP01_STR-FAFBCL sy-vline 
WA_RFVIMASP01_STR-FAFZCL sy-vline 
WA_RFVIMASP01_STR-FAFWCL sy-vline 
WA_RFVIMASP01_STR-FAFSGN sy-vline 
WA_RFVIMASP01_STR-XBOOL1 sy-vline 
WA_RFVIMASP01_STR-XBOOL2 sy-vline 
WA_RFVIMASP01_STR-XBOOL3 sy-vline 
WA_RFVIMASP01_STR-XBOOL4 sy-vline 
WA_RFVIMASP01_STR-XBOOL5 sy-vline 
WA_RFVIMASP01_STR-XNUMC1 sy-vline 
WA_RFVIMASP01_STR-XNUMC2 sy-vline 
WA_RFVIMASP01_STR-XNUMC3 sy-vline 
WA_RFVIMASP01_STR-XNUMC4 sy-vline 
WA_RFVIMASP01_STR-XNUMC5 sy-vline 
WA_RFVIMASP01_STR-XREAL1 sy-vline 
WA_RFVIMASP01_STR-XREAL2 sy-vline 
WA_RFVIMASP01_STR-XREAL3 sy-vline 
WA_RFVIMASP01_STR-XREAL4 sy-vline 
WA_RFVIMASP01_STR-XREAL5 sy-vline 
WA_RFVIMASP01_STR-XREAL6 sy-vline 
WA_RFVIMASP01_STR-XREAL7 sy-vline 
WA_RFVIMASP01_STR-XREAL8 sy-vline 
WA_RFVIMASP01_STR-XREAL9 sy-vline 
WA_RFVIMASP01_STR-XCHAR1 sy-vline 
WA_RFVIMASP01_STR-XCHAR2 sy-vline 
WA_RFVIMASP01_STR-XCHAR3 sy-vline 
WA_RFVIMASP01_STR-XCHAR4 sy-vline 
WA_RFVIMASP01_STR-XCHAR5 sy-vline 
WA_RFVIMASP01_STR-CURRKEY sy-vline 
WA_RFVIMASP01_STR-AREAKEY sy-vline      INTO ld_text SEPARATED BY SPACE.

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