ABAP Select data from SAP table RECNVICNSCSRH into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RECNVICNSCSRH
*  INTO TABLE @DATA(IT_RECNVICNSCSRH2).
*--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_RECNVICNSCSRH INDEX 1 INTO DATA(WA_RECNVICNSCSRH2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RECNVICNSCSRH>-MANDT = 1.
<RECNVICNSCSRH>-INTRENO = 1.
<RECNVICNSCSRH>-RECNSCSRHNR = 1.
<RECNVICNSCSRH>-PARTNR = 1.
<RECNVICNSCSRH>-RECNSCSRHNREXT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RECNVICNSCSRH-RECNSCSRHDAEXT, sy-vline,
  WA_RECNVICNSCSRH-RECNSCSRHAMOUNT, sy-vline,
  WA_RECNVICNSCSRH-RECNSCSRHCURR, sy-vline,
  WA_RECNVICNSCSRH-RECNSCSRHTAX, sy-vline,
  WA_RECNVICNSCSRH-RECNMWSKZ, sy-vline,
  WA_RECNVICNSCSRH-RECNDPERBEG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RECNVICNSCSRH 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_RECNVICNSCSRH 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_RECNVICNSCSRH INTO WA_RECNVICNSCSRH.


*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 PARTNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RECNVICNSCSRH-PARTNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RECNVICNSCSRH-PARTNR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit GJAHR, internal->external for field RECNBKPFGJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_RECNVICNSCSRH-RECNBKPFGJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RECNVICNSCSRH-RECNBKPFGJAHR.
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_RECNVICNSCSRH_STR, 
MANDT TYPE STRING,
INTRENO TYPE STRING,
RECNSCSRHNR TYPE STRING,
PARTNR TYPE STRING,
RECNSCSRHNREXT TYPE STRING,
RECNSCSRHDAEXT TYPE STRING,
RECNSCSRHAMOUNT TYPE STRING,
RECNSCSRHCURR TYPE STRING,
RECNSCSRHTAX TYPE STRING,
RECNMWSKZ TYPE STRING,
RECNDPERBEG TYPE STRING,
RECNDPEREND TYPE STRING,
RECNSCSACU TYPE STRING,
RECNSCSAC TYPE STRING,
RECNSCSPOU TYPE STRING,
RECNSCSPO TYPE STRING,
RECNSCSCAT TYPE STRING,
RECNBKPFBUKRS TYPE STRING,
RECNBKPFBELNR TYPE STRING,
RECNBKPFGJAHR TYPE STRING,
RECNVERVZ TYPE STRING,
SPARTNRTXT TYPE STRING,
MWSKZTEXT TYPE STRING,
RECNSCSCATTXT TYPE STRING,
RECNREVERSE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RECNVICNSCSRH_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_RECNVICNSCSRH_STR-MANDT sy-vline 
WA_RECNVICNSCSRH_STR-INTRENO sy-vline 
WA_RECNVICNSCSRH_STR-RECNSCSRHNR sy-vline 
WA_RECNVICNSCSRH_STR-PARTNR sy-vline 
WA_RECNVICNSCSRH_STR-RECNSCSRHNREXT sy-vline 
WA_RECNVICNSCSRH_STR-RECNSCSRHDAEXT sy-vline 
WA_RECNVICNSCSRH_STR-RECNSCSRHAMOUNT sy-vline 
WA_RECNVICNSCSRH_STR-RECNSCSRHCURR sy-vline 
WA_RECNVICNSCSRH_STR-RECNSCSRHTAX sy-vline 
WA_RECNVICNSCSRH_STR-RECNMWSKZ sy-vline 
WA_RECNVICNSCSRH_STR-RECNDPERBEG sy-vline 
WA_RECNVICNSCSRH_STR-RECNDPEREND sy-vline 
WA_RECNVICNSCSRH_STR-RECNSCSACU sy-vline 
WA_RECNVICNSCSRH_STR-RECNSCSAC sy-vline 
WA_RECNVICNSCSRH_STR-RECNSCSPOU sy-vline 
WA_RECNVICNSCSRH_STR-RECNSCSPO sy-vline 
WA_RECNVICNSCSRH_STR-RECNSCSCAT sy-vline 
WA_RECNVICNSCSRH_STR-RECNBKPFBUKRS sy-vline 
WA_RECNVICNSCSRH_STR-RECNBKPFBELNR sy-vline 
WA_RECNVICNSCSRH_STR-RECNBKPFGJAHR sy-vline 
WA_RECNVICNSCSRH_STR-RECNVERVZ sy-vline 
WA_RECNVICNSCSRH_STR-SPARTNRTXT sy-vline 
WA_RECNVICNSCSRH_STR-MWSKZTEXT sy-vline 
WA_RECNVICNSCSRH_STR-RECNSCSCATTXT sy-vline 
WA_RECNVICNSCSRH_STR-RECNREVERSE sy-vline      INTO ld_text SEPARATED BY SPACE.

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