ABAP Select data from SAP table RCASL into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RCASL 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 RCASL. 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 RCASL 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_RCASL TYPE STANDARD TABLE OF RCASL,
      WA_RCASL TYPE RCASL,
      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: <RCASL> TYPE RCASL.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RCASL
*  INTO TABLE @DATA(IT_RCASL2).
*--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_RCASL INDEX 1 INTO DATA(WA_RCASL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RCASL>-MATNR = 1.
<RCASL>-MAKTX = 1.
<RCASL>-VBELN = 1.
<RCASL>-POSNR = 1.
<RCASL>-TYPNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RCASL-WERKS, sy-vline,
  WA_RCASL-WTEXT, sy-vline,
  WA_RCASL-WKSEL, sy-vline,
  WA_RCASL-WKWRK, sy-vline,
  WA_RCASL-WKTXT, sy-vline,
  WA_RCASL-KZSEL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RCASL 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_RCASL 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_RCASL INTO WA_RCASL.


*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_RCASL-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RCASL-MATNR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

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

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

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

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

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

*Conversion exit MATN1, internal->external for field VMATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_RCASL-VMATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RCASL-VMATNR.
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_RCASL_STR, 
MATNR TYPE STRING,
MAKTX TYPE STRING,
VBELN TYPE STRING,
POSNR TYPE STRING,
TYPNR TYPE STRING,
WERKS TYPE STRING,
WTEXT TYPE STRING,
WKSEL TYPE STRING,
WKWRK TYPE STRING,
WKTXT TYPE STRING,
KZSEL TYPE STRING,
ZEILE TYPE STRING,
MEINS TYPE STRING,
MENGE TYPE STRING,
DATUV TYPE STRING,
EKFOR TYPE STRING,
EKANG TYPE STRING,
EKWHY TYPE STRING,
DMSTU TYPE STRING,
DSTRU TYPE STRING,
DPSEU TYPE STRING,
UAKTK TYPE STRING,
UKOMP TYPE STRING,
UNBOB TYPE STRING,
UBEZW TYPE STRING,
UKNOT TYPE STRING,
UCMPF TYPE STRING,
WLINE TYPE STRING,
TYPTX TYPE STRING,
KOXXX TYPE STRING,
KOMAT TYPE STRING,
KOKDA TYPE STRING,
KOFAU TYPE STRING,
CAPID TYPE STRING,
CAPTX TYPE STRING,
AUFNR TYPE STRING,
CO_POSNR TYPE STRING,
CBAUG TYPE STRING,
ICON TYPE STRING,
ICON1 TYPE STRING,
IMBEW TYPE STRING,
RSBOM TYPE STRING,
RSPLN TYPE STRING,
PBPT01 TYPE STRING,
PBPT02 TYPE STRING,
PBPT03 TYPE STRING,
PBPT04 TYPE STRING,
PBPT05 TYPE STRING,
PBPT06 TYPE STRING,
PBPT07 TYPE STRING,
PBPT08 TYPE STRING,
PBPT09 TYPE STRING,
PBPT10 TYPE STRING,
PBPT11 TYPE STRING,
PBPT12 TYPE STRING,
PBPT13 TYPE STRING,
PBPT14 TYPE STRING,
PBPT15 TYPE STRING,
PBPT16 TYPE STRING,
PBPT17 TYPE STRING,
PBPT18 TYPE STRING,
PBPT19 TYPE STRING,
PBPT20 TYPE STRING,
COSEL TYPE STRING,
OTEXT TYPE STRING,
IMATNR TYPE STRING,
IMAKTX TYPE STRING,
IDATUV TYPE STRING,
IMENGE TYPE STRING,
ICONA TYPE STRING,
IDNRK TYPE STRING,
AENNR TYPE STRING,
SMATNR TYPE STRING,
SEQUNR TYPE STRING,
SKLART TYPE STRING,
SCLASS TYPE STRING,
WDATU TYPE STRING,
PFUEB TYPE STRING,
CTRUE TYPE STRING,
APPID TYPE STRING,
EMAKTX TYPE STRING,
SPRAS TYPE STRING,
EMATNR TYPE STRING,
VMATNR TYPE STRING,
EMTART TYPE STRING,
EODATUV TYPE STRING,
EOCLINT TYPE STRING,
EOTECHS TYPE STRING,
CONFA TYPE STRING,
CONFR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RCASL_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_RCASL_STR-MATNR sy-vline 
WA_RCASL_STR-MAKTX sy-vline 
WA_RCASL_STR-VBELN sy-vline 
WA_RCASL_STR-POSNR sy-vline 
WA_RCASL_STR-TYPNR sy-vline 
WA_RCASL_STR-WERKS sy-vline 
WA_RCASL_STR-WTEXT sy-vline 
WA_RCASL_STR-WKSEL sy-vline 
WA_RCASL_STR-WKWRK sy-vline 
WA_RCASL_STR-WKTXT sy-vline 
WA_RCASL_STR-KZSEL sy-vline 
WA_RCASL_STR-ZEILE sy-vline 
WA_RCASL_STR-MEINS sy-vline 
WA_RCASL_STR-MENGE sy-vline 
WA_RCASL_STR-DATUV sy-vline 
WA_RCASL_STR-EKFOR sy-vline 
WA_RCASL_STR-EKANG sy-vline 
WA_RCASL_STR-EKWHY sy-vline 
WA_RCASL_STR-DMSTU sy-vline 
WA_RCASL_STR-DSTRU sy-vline 
WA_RCASL_STR-DPSEU sy-vline 
WA_RCASL_STR-UAKTK sy-vline 
WA_RCASL_STR-UKOMP sy-vline 
WA_RCASL_STR-UNBOB sy-vline 
WA_RCASL_STR-UBEZW sy-vline 
WA_RCASL_STR-UKNOT sy-vline 
WA_RCASL_STR-UCMPF sy-vline 
WA_RCASL_STR-WLINE sy-vline 
WA_RCASL_STR-TYPTX sy-vline 
WA_RCASL_STR-KOXXX sy-vline 
WA_RCASL_STR-KOMAT sy-vline 
WA_RCASL_STR-KOKDA sy-vline 
WA_RCASL_STR-KOFAU sy-vline 
WA_RCASL_STR-CAPID sy-vline 
WA_RCASL_STR-CAPTX sy-vline 
WA_RCASL_STR-AUFNR sy-vline 
WA_RCASL_STR-CO_POSNR sy-vline 
WA_RCASL_STR-CBAUG sy-vline 
WA_RCASL_STR-ICON sy-vline 
WA_RCASL_STR-ICON1 sy-vline 
WA_RCASL_STR-IMBEW sy-vline 
WA_RCASL_STR-RSBOM sy-vline 
WA_RCASL_STR-RSPLN sy-vline 
WA_RCASL_STR-PBPT01 sy-vline 
WA_RCASL_STR-PBPT02 sy-vline 
WA_RCASL_STR-PBPT03 sy-vline 
WA_RCASL_STR-PBPT04 sy-vline 
WA_RCASL_STR-PBPT05 sy-vline 
WA_RCASL_STR-PBPT06 sy-vline 
WA_RCASL_STR-PBPT07 sy-vline 
WA_RCASL_STR-PBPT08 sy-vline 
WA_RCASL_STR-PBPT09 sy-vline 
WA_RCASL_STR-PBPT10 sy-vline 
WA_RCASL_STR-PBPT11 sy-vline 
WA_RCASL_STR-PBPT12 sy-vline 
WA_RCASL_STR-PBPT13 sy-vline 
WA_RCASL_STR-PBPT14 sy-vline 
WA_RCASL_STR-PBPT15 sy-vline 
WA_RCASL_STR-PBPT16 sy-vline 
WA_RCASL_STR-PBPT17 sy-vline 
WA_RCASL_STR-PBPT18 sy-vline 
WA_RCASL_STR-PBPT19 sy-vline 
WA_RCASL_STR-PBPT20 sy-vline 
WA_RCASL_STR-COSEL sy-vline 
WA_RCASL_STR-OTEXT sy-vline 
WA_RCASL_STR-IMATNR sy-vline 
WA_RCASL_STR-IMAKTX sy-vline 
WA_RCASL_STR-IDATUV sy-vline 
WA_RCASL_STR-IMENGE sy-vline 
WA_RCASL_STR-ICONA sy-vline 
WA_RCASL_STR-IDNRK sy-vline 
WA_RCASL_STR-AENNR sy-vline 
WA_RCASL_STR-SMATNR sy-vline 
WA_RCASL_STR-SEQUNR sy-vline 
WA_RCASL_STR-SKLART sy-vline 
WA_RCASL_STR-SCLASS sy-vline 
WA_RCASL_STR-WDATU sy-vline 
WA_RCASL_STR-PFUEB sy-vline 
WA_RCASL_STR-CTRUE sy-vline 
WA_RCASL_STR-APPID sy-vline 
WA_RCASL_STR-EMAKTX sy-vline 
WA_RCASL_STR-SPRAS sy-vline 
WA_RCASL_STR-EMATNR sy-vline 
WA_RCASL_STR-VMATNR sy-vline 
WA_RCASL_STR-EMTART sy-vline 
WA_RCASL_STR-EODATUV sy-vline 
WA_RCASL_STR-EOCLINT sy-vline 
WA_RCASL_STR-EOTECHS sy-vline 
WA_RCASL_STR-CONFA sy-vline 
WA_RCASL_STR-CONFR sy-vline      INTO ld_text SEPARATED BY SPACE.

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