ABAP Select data from SAP table RECN_NOTICE_OBJREL_L into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RECN_NOTICE_OBJREL_L
*  INTO TABLE @DATA(IT_RECN_NOTICE_OBJREL_L2).
*--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_RECN_NOTICE_OBJREL_L INDEX 1 INTO DATA(WA_RECN_NOTICE_OBJREL_L2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RECN_NOTICE_OBJREL_L>-MANDT = 1.
<RECN_NOTICE_OBJREL_L>-INTRENO = 1.
<RECN_NOTICE_OBJREL_L>-NTNO = 1.
<RECN_NOTICE_OBJREL_L>-OBJNR = 1.
<RECN_NOTICE_OBJREL_L>-RELVALIDTOOLD = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RECN_NOTICE_OBJREL_L-XOBJGRP, sy-vline,
  WA_RECN_NOTICE_OBJREL_L-ADJUSTNUMBER, sy-vline,
  WA_RECN_NOTICE_OBJREL_L-OBJTYPE, sy-vline,
  WA_RECN_NOTICE_OBJREL_L-XOBJTYPE, sy-vline,
  WA_RECN_NOTICE_OBJREL_L-IDENT, sy-vline,
  WA_RECN_NOTICE_OBJREL_L-IDENTKEY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RECN_NOTICE_OBJREL_L 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_RECN_NOTICE_OBJREL_L 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_RECN_NOTICE_OBJREL_L INTO WA_RECN_NOTICE_OBJREL_L.


*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 REDAT, internal->external for field RELVALIDTOOLD
CALL FUNCTION 'CONVERSION_EXIT_REDAT_OUTPUT'
  EXPORTING
    input =                      WA_RECN_NOTICE_OBJREL_L-RELVALIDTOOLD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RECN_NOTICE_OBJREL_L-RELVALIDTOOLD.
WRITE:/ 'New Value:', ld_input.

*Conversion exit REDAT, internal->external for field RELVALIDTO
CALL FUNCTION 'CONVERSION_EXIT_REDAT_OUTPUT'
  EXPORTING
    input =                      WA_RECN_NOTICE_OBJREL_L-RELVALIDTO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RECN_NOTICE_OBJREL_L-RELVALIDTO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit REDAT, internal->external for field OBJVALIDTO
CALL FUNCTION 'CONVERSION_EXIT_REDAT_OUTPUT'
  EXPORTING
    input =                      WA_RECN_NOTICE_OBJREL_L-OBJVALIDTO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RECN_NOTICE_OBJREL_L-OBJVALIDTO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field TERMNO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RECN_NOTICE_OBJREL_L-TERMNO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RECN_NOTICE_OBJREL_L-TERMNO.
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_RECN_NOTICE_OBJREL_L_STR, 
MANDT TYPE STRING,
INTRENO TYPE STRING,
NTNO TYPE STRING,
OBJNR TYPE STRING,
RELVALIDTOOLD TYPE STRING,
XOBJGRP TYPE STRING,
ADJUSTNUMBER TYPE STRING,
OBJTYPE TYPE STRING,
XOBJTYPE TYPE STRING,
IDENT TYPE STRING,
IDENTKEY TYPE STRING,
DESCRIPTION TYPE STRING,
XLOBJTYPE TYPE STRING,
RELVALIDFROM TYPE STRING,
RELVALIDTO TYPE STRING,
OBJVALIDFROM TYPE STRING,
OBJVALIDTO TYPE STRING,
TERMTYPE TYPE STRING,
TERMNO TYPE STRING,
XTERM TYPE STRING,
NTCALCULATED TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RECN_NOTICE_OBJREL_L_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_RECN_NOTICE_OBJREL_L_STR-MANDT sy-vline 
WA_RECN_NOTICE_OBJREL_L_STR-INTRENO sy-vline 
WA_RECN_NOTICE_OBJREL_L_STR-NTNO sy-vline 
WA_RECN_NOTICE_OBJREL_L_STR-OBJNR sy-vline 
WA_RECN_NOTICE_OBJREL_L_STR-RELVALIDTOOLD sy-vline 
WA_RECN_NOTICE_OBJREL_L_STR-XOBJGRP sy-vline 
WA_RECN_NOTICE_OBJREL_L_STR-ADJUSTNUMBER sy-vline 
WA_RECN_NOTICE_OBJREL_L_STR-OBJTYPE sy-vline 
WA_RECN_NOTICE_OBJREL_L_STR-XOBJTYPE sy-vline 
WA_RECN_NOTICE_OBJREL_L_STR-IDENT sy-vline 
WA_RECN_NOTICE_OBJREL_L_STR-IDENTKEY sy-vline 
WA_RECN_NOTICE_OBJREL_L_STR-DESCRIPTION sy-vline 
WA_RECN_NOTICE_OBJREL_L_STR-XLOBJTYPE sy-vline 
WA_RECN_NOTICE_OBJREL_L_STR-RELVALIDFROM sy-vline 
WA_RECN_NOTICE_OBJREL_L_STR-RELVALIDTO sy-vline 
WA_RECN_NOTICE_OBJREL_L_STR-OBJVALIDFROM sy-vline 
WA_RECN_NOTICE_OBJREL_L_STR-OBJVALIDTO sy-vline 
WA_RECN_NOTICE_OBJREL_L_STR-TERMTYPE sy-vline 
WA_RECN_NOTICE_OBJREL_L_STR-TERMNO sy-vline 
WA_RECN_NOTICE_OBJREL_L_STR-XTERM sy-vline 
WA_RECN_NOTICE_OBJREL_L_STR-NTCALCULATED sy-vline      INTO ld_text SEPARATED BY SPACE.

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