ABAP Select data from SAP table REYCADFNEXDN into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM REYCADFNEXDN
*  INTO TABLE @DATA(IT_REYCADFNEXDN2).
*--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_REYCADFNEXDN INDEX 1 INTO DATA(WA_REYCADFNEXDN2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<REYCADFNEXDN>-CAM_AD_GUID = 1.
<REYCADFNEXDN>-SETTL_GUID = 1.
<REYCADFNEXDN>-CAM_EXP_GUID = 1.
<REYCADFNEXDN>-CAM_DC_GUID = 1.
<REYCADFNEXDN>-CAM_MC_GUID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_REYCADFNEXDN-CNOBJNR, sy-vline,
  WA_REYCADFNEXDN-CNIDENT, sy-vline,
  WA_REYCADFNEXDN-CNOBJINFO, sy-vline,
  WA_REYCADFNEXDN-RECNNR, sy-vline,
  WA_REYCADFNEXDN-RECNTXT, sy-vline,
  WA_REYCADFNEXDN-IDENT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_REYCADFNEXDN 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_REYCADFNEXDN 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_REYCADFNEXDN INTO WA_REYCADFNEXDN.


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

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

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

*Conversion exit AC152, internal->external for field WTGBTR
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_REYCADFNEXDN-WTGBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REYCADFNEXDN-WTGBTR.
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_REYCADFNEXDN_STR, 
CAM_AD_GUID TYPE STRING,
SETTL_GUID TYPE STRING,
CAM_EXP_GUID TYPE STRING,
CAM_DC_GUID TYPE STRING,
CAM_MC_GUID TYPE STRING,
CNOBJNR TYPE STRING,
CNIDENT TYPE STRING,
CNOBJINFO TYPE STRING,
RECNNR TYPE STRING,
RECNTXT TYPE STRING,
IDENT TYPE STRING,
OBJINFO TYPE STRING,
OBJNR TYPE STRING,
OBJTYPE TYPE STRING,
XOBJTYPE TYPE STRING,
XLOBJTYPE TYPE STRING,
POOLIDENT TYPE STRING,
POOLOBJINFO TYPE STRING,
KSTAR TYPE STRING,
OBJID TYPE STRING,
CAM_POOL_GUID TYPE STRING,
POOLOBJNR TYPE STRING,
EXPPOOL TYPE STRING,
XEXPPOOL TYPE STRING,
EXPLINEGUID TYPE STRING,
EXPTYPE TYPE STRING,
XMEXP TYPE STRING,
PGID TYPE STRING,
WTGBTR TYPE STRING,
AMTAFTERMK TYPE STRING,
CAPPINGAMNTPRE TYPE STRING,
CAPPINGAMOUNT TYPE STRING,
AMTAFTERCAP TYPE STRING,
MTCDEDUCTTOTAL TYPE STRING,
AMT4DISTRIBUTION TYPE STRING,
AMTMARKUP TYPE STRING,
AMTMARKUP_LOWER TYPE STRING,
AMTCAP TYPE STRING,
AMTADJUSTMENT TYPE STRING,
AMTADJUSTED TYPE STRING,
TENANTSHARE TYPE STRING,
ADVPAYNETAMT TYPE STRING,
AMT_DC TYPE STRING,
ADJUSTMENT TYPE STRING,
ADJDISTRIB TYPE STRING,END OF T_EKKO_STR.
DATA: WA_REYCADFNEXDN_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_REYCADFNEXDN_STR-CAM_AD_GUID sy-vline 
WA_REYCADFNEXDN_STR-SETTL_GUID sy-vline 
WA_REYCADFNEXDN_STR-CAM_EXP_GUID sy-vline 
WA_REYCADFNEXDN_STR-CAM_DC_GUID sy-vline 
WA_REYCADFNEXDN_STR-CAM_MC_GUID sy-vline 
WA_REYCADFNEXDN_STR-CNOBJNR sy-vline 
WA_REYCADFNEXDN_STR-CNIDENT sy-vline 
WA_REYCADFNEXDN_STR-CNOBJINFO sy-vline 
WA_REYCADFNEXDN_STR-RECNNR sy-vline 
WA_REYCADFNEXDN_STR-RECNTXT sy-vline 
WA_REYCADFNEXDN_STR-IDENT sy-vline 
WA_REYCADFNEXDN_STR-OBJINFO sy-vline 
WA_REYCADFNEXDN_STR-OBJNR sy-vline 
WA_REYCADFNEXDN_STR-OBJTYPE sy-vline 
WA_REYCADFNEXDN_STR-XOBJTYPE sy-vline 
WA_REYCADFNEXDN_STR-XLOBJTYPE sy-vline 
WA_REYCADFNEXDN_STR-POOLIDENT sy-vline 
WA_REYCADFNEXDN_STR-POOLOBJINFO sy-vline 
WA_REYCADFNEXDN_STR-KSTAR sy-vline 
WA_REYCADFNEXDN_STR-OBJID sy-vline 
WA_REYCADFNEXDN_STR-CAM_POOL_GUID sy-vline 
WA_REYCADFNEXDN_STR-POOLOBJNR sy-vline 
WA_REYCADFNEXDN_STR-EXPPOOL sy-vline 
WA_REYCADFNEXDN_STR-XEXPPOOL sy-vline 
WA_REYCADFNEXDN_STR-EXPLINEGUID sy-vline 
WA_REYCADFNEXDN_STR-EXPTYPE sy-vline 
WA_REYCADFNEXDN_STR-XMEXP sy-vline 
WA_REYCADFNEXDN_STR-PGID sy-vline 
WA_REYCADFNEXDN_STR-WTGBTR sy-vline 
WA_REYCADFNEXDN_STR-AMTAFTERMK sy-vline 
WA_REYCADFNEXDN_STR-CAPPINGAMNTPRE sy-vline 
WA_REYCADFNEXDN_STR-CAPPINGAMOUNT sy-vline 
WA_REYCADFNEXDN_STR-AMTAFTERCAP sy-vline 
WA_REYCADFNEXDN_STR-MTCDEDUCTTOTAL sy-vline 
WA_REYCADFNEXDN_STR-AMT4DISTRIBUTION sy-vline 
WA_REYCADFNEXDN_STR-AMTMARKUP sy-vline 
WA_REYCADFNEXDN_STR-AMTMARKUP_LOWER sy-vline 
WA_REYCADFNEXDN_STR-AMTCAP sy-vline 
WA_REYCADFNEXDN_STR-AMTADJUSTMENT sy-vline 
WA_REYCADFNEXDN_STR-AMTADJUSTED sy-vline 
WA_REYCADFNEXDN_STR-TENANTSHARE sy-vline 
WA_REYCADFNEXDN_STR-ADVPAYNETAMT sy-vline 
WA_REYCADFNEXDN_STR-AMT_DC sy-vline 
WA_REYCADFNEXDN_STR-ADJUSTMENT sy-vline 
WA_REYCADFNEXDN_STR-ADJDISTRIB sy-vline      INTO ld_text SEPARATED BY SPACE.

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