ABAP Select data from SAP table RNBADI_CAS 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 RNBADI_CAS 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 RNBADI_CAS. 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 RNBADI_CAS 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_RNBADI_CAS TYPE STANDARD TABLE OF RNBADI_CAS,
      WA_RNBADI_CAS TYPE RNBADI_CAS,
      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: <RNBADI_CAS> TYPE RNBADI_CAS.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RNBADI_CAS
*  INTO TABLE @DATA(IT_RNBADI_CAS2).
*--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_RNBADI_CAS INDEX 1 INTO DATA(WA_RNBADI_CAS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RNBADI_CAS>-BEGDT = 1.
<RNBADI_CAS>-ENDDT = 1.
<RNBADI_CAS>-FATYP = 1.
<RNBADI_CAS>-ENDTYP = 1.
<RNBADI_CAS>-FACHR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RNBADI_CAS-EINZG, sy-vline,
  WA_RNBADI_CAS-KTTAR, sy-vline,
  WA_RNBADI_CAS-CHILD, sy-vline,
  WA_RNBADI_CAS-EMTYP, sy-vline,
  WA_RNBADI_CAS-ARBUN, sy-vline,
  WA_RNBADI_CAS-DOCTY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RNBADI_CAS 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_RNBADI_CAS 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_RNBADI_CAS INTO WA_RNBADI_CAS.


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

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

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

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

*Conversion exit NLJUS, internal->external for field DOCNR
CALL FUNCTION 'CONVERSION_EXIT_NLJUS_OUTPUT'
  EXPORTING
    input =                      WA_RNBADI_CAS-DOCNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RNBADI_CAS-DOCNR.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit ALPHA, internal->external for field ASL_RES
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RNBADI_CAS-ASL_RES
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RNBADI_CAS-ASL_RES.
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_RNBADI_CAS_STR, 
BEGDT TYPE STRING,
ENDDT TYPE STRING,
FATYP TYPE STRING,
ENDTYP TYPE STRING,
FACHR TYPE STRING,
EINZG TYPE STRING,
KTTAR TYPE STRING,
CHILD TYPE STRING,
EMTYP TYPE STRING,
ARBUN TYPE STRING,
DOCTY TYPE STRING,
DOCNR TYPE STRING,
STASP TYPE STRING,
KV_KZ TYPE STRING,
SICHV TYPE STRING,
FOREI TYPE STRING,
RESID TYPE STRING,
APSTATE TYPE STRING,
VORGR TYPE STRING,
EAUFN TYPE STRING,
FPEDT TYPE STRING,
KTABK TYPE STRING,
PATGEW TYPE STRING,
GWEIN TYPE STRING,
PATGRO TYPE STRING,
GREIN TYPE STRING,
RESPI TYPE STRING,
KZTXT TYPE STRING,
TOB TYPE STRING,
CONSENT TYPE STRING,
ISTAT_RES TYPE STRING,
ASL_RES TYPE STRING,
EXTBUD TYPE STRING,
MHLS TYPE STRING,
READM TYPE STRING,
LMPER TYPE STRING,
SAPS_C TYPE STRING,
PIM2_C TYPE STRING,
CRIB_C TYPE STRING,
NEMS_C TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RNBADI_CAS_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_RNBADI_CAS_STR-BEGDT sy-vline 
WA_RNBADI_CAS_STR-ENDDT sy-vline 
WA_RNBADI_CAS_STR-FATYP sy-vline 
WA_RNBADI_CAS_STR-ENDTYP sy-vline 
WA_RNBADI_CAS_STR-FACHR sy-vline 
WA_RNBADI_CAS_STR-EINZG sy-vline 
WA_RNBADI_CAS_STR-KTTAR sy-vline 
WA_RNBADI_CAS_STR-CHILD sy-vline 
WA_RNBADI_CAS_STR-EMTYP sy-vline 
WA_RNBADI_CAS_STR-ARBUN sy-vline 
WA_RNBADI_CAS_STR-DOCTY sy-vline 
WA_RNBADI_CAS_STR-DOCNR sy-vline 
WA_RNBADI_CAS_STR-STASP sy-vline 
WA_RNBADI_CAS_STR-KV_KZ sy-vline 
WA_RNBADI_CAS_STR-SICHV sy-vline 
WA_RNBADI_CAS_STR-FOREI sy-vline 
WA_RNBADI_CAS_STR-RESID sy-vline 
WA_RNBADI_CAS_STR-APSTATE sy-vline 
WA_RNBADI_CAS_STR-VORGR sy-vline 
WA_RNBADI_CAS_STR-EAUFN sy-vline 
WA_RNBADI_CAS_STR-FPEDT sy-vline 
WA_RNBADI_CAS_STR-KTABK sy-vline 
WA_RNBADI_CAS_STR-PATGEW sy-vline 
WA_RNBADI_CAS_STR-GWEIN sy-vline 
WA_RNBADI_CAS_STR-PATGRO sy-vline 
WA_RNBADI_CAS_STR-GREIN sy-vline 
WA_RNBADI_CAS_STR-RESPI sy-vline 
WA_RNBADI_CAS_STR-KZTXT sy-vline 
WA_RNBADI_CAS_STR-TOB sy-vline 
WA_RNBADI_CAS_STR-CONSENT sy-vline 
WA_RNBADI_CAS_STR-ISTAT_RES sy-vline 
WA_RNBADI_CAS_STR-ASL_RES sy-vline 
WA_RNBADI_CAS_STR-EXTBUD sy-vline 
WA_RNBADI_CAS_STR-MHLS sy-vline 
WA_RNBADI_CAS_STR-READM sy-vline 
WA_RNBADI_CAS_STR-LMPER sy-vline 
WA_RNBADI_CAS_STR-SAPS_C sy-vline 
WA_RNBADI_CAS_STR-PIM2_C sy-vline 
WA_RNBADI_CAS_STR-CRIB_C sy-vline 
WA_RNBADI_CAS_STR-NEMS_C sy-vline      INTO ld_text SEPARATED BY SPACE.

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