ABAP Select data from SAP table RN2DSCA_CORD_HKVERB into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RN2DSCA_CORD_HKVERB 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 RN2DSCA_CORD_HKVERB. 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 RN2DSCA_CORD_HKVERB 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_RN2DSCA_CORD_HKVERB TYPE STANDARD TABLE OF RN2DSCA_CORD_HKVERB,
      WA_RN2DSCA_CORD_HKVERB TYPE RN2DSCA_CORD_HKVERB,
      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: <RN2DSCA_CORD_HKVERB> TYPE RN2DSCA_CORD_HKVERB.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RN2DSCA_CORD_HKVERB.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RN2DSCA_CORD_HKVERB
  INTO TABLE IT_RN2DSCA_CORD_HKVERB.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RN2DSCA_CORD_HKVERB
*  INTO TABLE @DATA(IT_RN2DSCA_CORD_HKVERB2).
*--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_RN2DSCA_CORD_HKVERB INDEX 1 INTO DATA(WA_RN2DSCA_CORD_HKVERB2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RN2DSCA_CORD_HKVERB ASSIGNING <RN2DSCA_CORD_HKVERB>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RN2DSCA_CORD_HKVERB>-MANDT = 1.
<RN2DSCA_CORD_HKVERB>-CUUID = 1.
<RN2DSCA_CORD_HKVERB>-CSYN = 1.
<RN2DSCA_CORD_HKVERB>-ISCHN = 1.
<RN2DSCA_CORD_HKVERB>-N8CACORDS1 = 1.

ENDLOOP.

LOOP AT IT_RN2DSCA_CORD_HKVERB INTO WA_RN2DSCA_CORD_HKVERB.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RN2DSCA_CORD_HKVERB-N8CACORDS2, sy-vline,
  WA_RN2DSCA_CORD_HKVERB-PATEIN, sy-vline,
  WA_RN2DSCA_CORD_HKVERB-QUICK, sy-vline,
  WA_RN2DSCA_CORD_HKVERB-INR, sy-vline,
  WA_RN2DSCA_CORD_HKVERB-DATINR, sy-vline,
  WA_RN2DSCA_CORD_HKVERB-PTT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RN2DSCA_CORD_HKVERB 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_RN2DSCA_CORD_HKVERB 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_RN2DSCA_CORD_HKVERB INTO WA_RN2DSCA_CORD_HKVERB.


*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 CUNIT, internal->external for field UNTHROMB
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RN2DSCA_CORD_HKVERB-UNTHROMB
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN2DSCA_CORD_HKVERB-UNTHROMB.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field UNSEKREA
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RN2DSCA_CORD_HKVERB-UNSEKREA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN2DSCA_CORD_HKVERB-UNSEKREA.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field UNHAEMO
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RN2DSCA_CORD_HKVERB-UNHAEMO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN2DSCA_CORD_HKVERB-UNHAEMO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field UNTSH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RN2DSCA_CORD_HKVERB-UNTSH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN2DSCA_CORD_HKVERB-UNTSH.
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_RN2DSCA_CORD_HKVERB_STR, 
MANDT TYPE STRING,
CUUID TYPE STRING,
CSYN TYPE STRING,
ISCHN TYPE STRING,
N8CACORDS1 TYPE STRING,
N8CACORDS2 TYPE STRING,
PATEIN TYPE STRING,
QUICK TYPE STRING,
INR TYPE STRING,
DATINR TYPE STRING,
PTT TYPE STRING,
DATPTT TYPE STRING,
THROMB TYPE STRING,
UNTHROMB TYPE STRING,
DATTHROMB TYPE STRING,
SEKREA TYPE STRING,
UNSEKREA TYPE STRING,
DATSEKREA TYPE STRING,
HAEMO TYPE STRING,
UNHAEMO TYPE STRING,
DATHAEMO TYPE STRING,
TSH TYPE STRING,
UNTSH TYPE STRING,
DATTSH TYPE STRING,
ERDAT TYPE STRING,
ERTIM TYPE STRING,
ERUSR TYPE STRING,
UPDAT TYPE STRING,
UPTIM TYPE STRING,
UPUSR TYPE STRING,
STORN TYPE STRING,
STDAT TYPE STRING,
STTIM TYPE STRING,
STUSR TYPE STRING,
KZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RN2DSCA_CORD_HKVERB_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_RN2DSCA_CORD_HKVERB_STR-MANDT sy-vline 
WA_RN2DSCA_CORD_HKVERB_STR-CUUID sy-vline 
WA_RN2DSCA_CORD_HKVERB_STR-CSYN sy-vline 
WA_RN2DSCA_CORD_HKVERB_STR-ISCHN sy-vline 
WA_RN2DSCA_CORD_HKVERB_STR-N8CACORDS1 sy-vline 
WA_RN2DSCA_CORD_HKVERB_STR-N8CACORDS2 sy-vline 
WA_RN2DSCA_CORD_HKVERB_STR-PATEIN sy-vline 
WA_RN2DSCA_CORD_HKVERB_STR-QUICK sy-vline 
WA_RN2DSCA_CORD_HKVERB_STR-INR sy-vline 
WA_RN2DSCA_CORD_HKVERB_STR-DATINR sy-vline 
WA_RN2DSCA_CORD_HKVERB_STR-PTT sy-vline 
WA_RN2DSCA_CORD_HKVERB_STR-DATPTT sy-vline 
WA_RN2DSCA_CORD_HKVERB_STR-THROMB sy-vline 
WA_RN2DSCA_CORD_HKVERB_STR-UNTHROMB sy-vline 
WA_RN2DSCA_CORD_HKVERB_STR-DATTHROMB sy-vline 
WA_RN2DSCA_CORD_HKVERB_STR-SEKREA sy-vline 
WA_RN2DSCA_CORD_HKVERB_STR-UNSEKREA sy-vline 
WA_RN2DSCA_CORD_HKVERB_STR-DATSEKREA sy-vline 
WA_RN2DSCA_CORD_HKVERB_STR-HAEMO sy-vline 
WA_RN2DSCA_CORD_HKVERB_STR-UNHAEMO sy-vline 
WA_RN2DSCA_CORD_HKVERB_STR-DATHAEMO sy-vline 
WA_RN2DSCA_CORD_HKVERB_STR-TSH sy-vline 
WA_RN2DSCA_CORD_HKVERB_STR-UNTSH sy-vline 
WA_RN2DSCA_CORD_HKVERB_STR-DATTSH sy-vline 
WA_RN2DSCA_CORD_HKVERB_STR-ERDAT sy-vline 
WA_RN2DSCA_CORD_HKVERB_STR-ERTIM sy-vline 
WA_RN2DSCA_CORD_HKVERB_STR-ERUSR sy-vline 
WA_RN2DSCA_CORD_HKVERB_STR-UPDAT sy-vline 
WA_RN2DSCA_CORD_HKVERB_STR-UPTIM sy-vline 
WA_RN2DSCA_CORD_HKVERB_STR-UPUSR sy-vline 
WA_RN2DSCA_CORD_HKVERB_STR-STORN sy-vline 
WA_RN2DSCA_CORD_HKVERB_STR-STDAT sy-vline 
WA_RN2DSCA_CORD_HKVERB_STR-STTIM sy-vline 
WA_RN2DSCA_CORD_HKVERB_STR-STUSR sy-vline 
WA_RN2DSCA_CORD_HKVERB_STR-KZ sy-vline      INTO ld_text SEPARATED BY SPACE.

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