ABAP Select data from SAP table SI_RMCLX0 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP SI_RMCLX0 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 SI_RMCLX0. 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 SI_RMCLX0 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_SI_RMCLX0 TYPE STANDARD TABLE OF SI_RMCLX0,
      WA_SI_RMCLX0 TYPE SI_RMCLX0,
      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: <SI_RMCLX0> TYPE SI_RMCLX0.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_SI_RMCLX0.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM SI_RMCLX0
  INTO TABLE IT_SI_RMCLX0.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SI_RMCLX0
*  INTO TABLE @DATA(IT_SI_RMCLX02).
*--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_SI_RMCLX0 INDEX 1 INTO DATA(WA_SI_RMCLX02).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_SI_RMCLX0 ASSIGNING <SI_RMCLX0>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SI_RMCLX0>-MATNR = 1.
<SI_RMCLX0>-MEINS = 1.
<SI_RMCLX0>-DOKNR = 1.
<SI_RMCLX0>-DOKAR = 1.
<SI_RMCLX0>-DOKTL = 1.

ENDLOOP.

LOOP AT IT_SI_RMCLX0 INTO WA_SI_RMCLX0.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SI_RMCLX0-DOKVR, sy-vline,
  WA_SI_RMCLX0-KNNAM, sy-vline,
  WA_SI_RMCLX0-WERKS, sy-vline,
  WA_SI_RMCLX0-ARBPL, sy-vline,
  WA_SI_RMCLX0-OBJNR, sy-vline,
  WA_SI_RMCLX0-LIFNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SI_RMCLX0 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_SI_RMCLX0 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_SI_RMCLX0 INTO WA_SI_RMCLX0.


*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 MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_SI_RMCLX0-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SI_RMCLX0-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_SI_RMCLX0-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SI_RMCLX0-MEINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field DOKNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_SI_RMCLX0-DOKNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SI_RMCLX0-DOKNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit OBKEY, internal->external for field OBJNR
CALL FUNCTION 'CONVERSION_EXIT_OBKEY_OUTPUT'
  EXPORTING
    input =                      WA_SI_RMCLX0-OBJNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SI_RMCLX0-OBJNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LIFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_SI_RMCLX0-LIFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SI_RMCLX0-LIFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KUNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_SI_RMCLX0-KUNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SI_RMCLX0-KUNNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field NETNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_SI_RMCLX0-NETNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SI_RMCLX0-NETNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AENNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_SI_RMCLX0-AENNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SI_RMCLX0-AENNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field SATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_SI_RMCLX0-SATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SI_RMCLX0-SATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PRZNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_SI_RMCLX0-PRZNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SI_RMCLX0-PRZNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_SI_RMCLX0-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SI_RMCLX0-GJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ASNUM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_SI_RMCLX0-ASNUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SI_RMCLX0-ASNUM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit FMCIS, internal->external for field FIPOS
CALL FUNCTION 'CONVERSION_EXIT_FMCIS_OUTPUT'
  EXPORTING
    input =                      WA_SI_RMCLX0-FIPOS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SI_RMCLX0-FIPOS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit FMCIS, internal->external for field FICPOS
CALL FUNCTION 'CONVERSION_EXIT_FMCIS_OUTPUT'
  EXPORTING
    input =                      WA_SI_RMCLX0-FICPOS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SI_RMCLX0-FICPOS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_SI_RMCLX0-VBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SI_RMCLX0-VBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AUFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_SI_RMCLX0-AUFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SI_RMCLX0-AUFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ATINN, internal->external for field ATINN
CALL FUNCTION 'CONVERSION_EXIT_ATINN_OUTPUT'
  EXPORTING
    input =                      WA_SI_RMCLX0-ATINN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SI_RMCLX0-ATINN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_SI_RMCLX0-EBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SI_RMCLX0-EBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BANFN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_SI_RMCLX0-BANFN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SI_RMCLX0-BANFN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PARTNER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_SI_RMCLX0-PARTNER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SI_RMCLX0-PARTNER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PNUID, internal->external for field BPL_PNGUID
CALL FUNCTION 'CONVERSION_EXIT_PNUID_OUTPUT'
  EXPORTING
    input =                      WA_SI_RMCLX0-BPL_PNGUID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SI_RMCLX0-BPL_PNGUID.
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_SI_RMCLX0_STR, 
MATNR TYPE STRING,
MEINS TYPE STRING,
DOKNR TYPE STRING,
DOKAR TYPE STRING,
DOKTL TYPE STRING,
DOKVR TYPE STRING,
KNNAM TYPE STRING,
WERKS TYPE STRING,
ARBPL TYPE STRING,
OBJNR TYPE STRING,
LIFNR TYPE STRING,
KUNNR TYPE STRING,
NETNR TYPE STRING,
CHARG TYPE STRING,
KSCHL TYPE STRING,
AENNR TYPE STRING,
KLART_CUVT TYPE STRING,
CLASS_CUVT TYPE STRING,
LNPOS TYPE STRING,
BSSTR TYPE STRING,
WGHIE TYPE STRING,
WARGR TYPE STRING,
WGHIE1 TYPE STRING,
SATNR TYPE STRING,
KOKRS TYPE STRING,
PRZNR TYPE STRING,
DATBI TYPE STRING,
FRGGR TYPE STRING,
GJAHR TYPE STRING,
RSNUM TYPE STRING,
RSPOS TYPE STRING,
RSART TYPE STRING,
ASNUM TYPE STRING,
FIKRS TYPE STRING,
FIPOS TYPE STRING,
FINCODE TYPE STRING,
FICPOS TYPE STRING,
VBELN TYPE STRING,
POSNR TYPE STRING,
AUFNR TYPE STRING,
AUFPL TYPE STRING,
ATINN TYPE STRING,
ATWRT TYPE STRING,
LAYVR TYPE STRING,
SORTF TYPE STRING,
EBELN TYPE STRING,
EBELP TYPE STRING,
BANFN TYPE STRING,
BNFPO TYPE STRING,
PARTNER TYPE STRING,
PARTNER_GUID TYPE STRING,
BUDGET_PD TYPE STRING,
XFELD TYPE STRING,
BPL_PNGUID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SI_RMCLX0_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_SI_RMCLX0_STR-MATNR sy-vline 
WA_SI_RMCLX0_STR-MEINS sy-vline 
WA_SI_RMCLX0_STR-DOKNR sy-vline 
WA_SI_RMCLX0_STR-DOKAR sy-vline 
WA_SI_RMCLX0_STR-DOKTL sy-vline 
WA_SI_RMCLX0_STR-DOKVR sy-vline 
WA_SI_RMCLX0_STR-KNNAM sy-vline 
WA_SI_RMCLX0_STR-WERKS sy-vline 
WA_SI_RMCLX0_STR-ARBPL sy-vline 
WA_SI_RMCLX0_STR-OBJNR sy-vline 
WA_SI_RMCLX0_STR-LIFNR sy-vline 
WA_SI_RMCLX0_STR-KUNNR sy-vline 
WA_SI_RMCLX0_STR-NETNR sy-vline 
WA_SI_RMCLX0_STR-CHARG sy-vline 
WA_SI_RMCLX0_STR-KSCHL sy-vline 
WA_SI_RMCLX0_STR-AENNR sy-vline 
WA_SI_RMCLX0_STR-KLART_CUVT sy-vline 
WA_SI_RMCLX0_STR-CLASS_CUVT sy-vline 
WA_SI_RMCLX0_STR-LNPOS sy-vline 
WA_SI_RMCLX0_STR-BSSTR sy-vline 
WA_SI_RMCLX0_STR-WGHIE sy-vline 
WA_SI_RMCLX0_STR-WARGR sy-vline 
WA_SI_RMCLX0_STR-WGHIE1 sy-vline 
WA_SI_RMCLX0_STR-SATNR sy-vline 
WA_SI_RMCLX0_STR-KOKRS sy-vline 
WA_SI_RMCLX0_STR-PRZNR sy-vline 
WA_SI_RMCLX0_STR-DATBI sy-vline 
WA_SI_RMCLX0_STR-FRGGR sy-vline 
WA_SI_RMCLX0_STR-GJAHR sy-vline 
WA_SI_RMCLX0_STR-RSNUM sy-vline 
WA_SI_RMCLX0_STR-RSPOS sy-vline 
WA_SI_RMCLX0_STR-RSART sy-vline 
WA_SI_RMCLX0_STR-ASNUM sy-vline 
WA_SI_RMCLX0_STR-FIKRS sy-vline 
WA_SI_RMCLX0_STR-FIPOS sy-vline 
WA_SI_RMCLX0_STR-FINCODE sy-vline 
WA_SI_RMCLX0_STR-FICPOS sy-vline 
WA_SI_RMCLX0_STR-VBELN sy-vline 
WA_SI_RMCLX0_STR-POSNR sy-vline 
WA_SI_RMCLX0_STR-AUFNR sy-vline 
WA_SI_RMCLX0_STR-AUFPL sy-vline 
WA_SI_RMCLX0_STR-ATINN sy-vline 
WA_SI_RMCLX0_STR-ATWRT sy-vline 
WA_SI_RMCLX0_STR-LAYVR sy-vline 
WA_SI_RMCLX0_STR-SORTF sy-vline 
WA_SI_RMCLX0_STR-EBELN sy-vline 
WA_SI_RMCLX0_STR-EBELP sy-vline 
WA_SI_RMCLX0_STR-BANFN sy-vline 
WA_SI_RMCLX0_STR-BNFPO sy-vline 
WA_SI_RMCLX0_STR-PARTNER sy-vline 
WA_SI_RMCLX0_STR-PARTNER_GUID sy-vline 
WA_SI_RMCLX0_STR-BUDGET_PD sy-vline 
WA_SI_RMCLX0_STR-XFELD sy-vline 
WA_SI_RMCLX0_STR-BPL_PNGUID sy-vline      INTO ld_text SEPARATED BY SPACE.

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