ABAP Select data from SAP table CRELCRETDELFFS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CRELCRETDELFFS
*  INTO TABLE @DATA(IT_CRELCRETDELFFS2).
*--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_CRELCRETDELFFS INDEX 1 INTO DATA(WA_CRELCRETDELFFS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CRELCRETDELFFS>-MANDT = 1.
<CRELCRETDELFFS>-DOCRELATIONSHIPUUID = 1.
<CRELCRETDELFFS>-SALESDOCUMENT = 1.
<CRELCRETDELFFS>-SALESDOCUMENTITEM = 1.
<CRELCRETDELFFS>-SUBSEQUENTDOCUMENTCATEGORY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CRELCRETDELFFS-PRECEDINGDOCUMENT, sy-vline,
  WA_CRELCRETDELFFS-PRECEDINGDOCUMENTITEM, sy-vline,
  WA_CRELCRETDELFFS-PRECEDINGDOCUMENTCATEGORY, sy-vline,
  WA_CRELCRETDELFFS-CUSTOMERRETURN, sy-vline,
  WA_CRELCRETDELFFS-CUSTOMERRETURNITEM, sy-vline,
  WA_CRELCRETDELFFS-DIVISION, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CRELCRETDELFFS 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_CRELCRETDELFFS 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_CRELCRETDELFFS INTO WA_CRELCRETDELFFS.


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

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

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

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

*Conversion exit AUART, internal->external for field SALESDOCUMENTTYPE
CALL FUNCTION 'CONVERSION_EXIT_AUART_OUTPUT'
  EXPORTING
    input =                      WA_CRELCRETDELFFS-SALESDOCUMENTTYPE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRELCRETDELFFS-SALESDOCUMENTTYPE.
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_CRELCRETDELFFS_STR, 
MANDT TYPE STRING,
DOCRELATIONSHIPUUID TYPE STRING,
SALESDOCUMENT TYPE STRING,
SALESDOCUMENTITEM TYPE STRING,
SUBSEQUENTDOCUMENTCATEGORY TYPE STRING,
PRECEDINGDOCUMENT TYPE STRING,
PRECEDINGDOCUMENTITEM TYPE STRING,
PRECEDINGDOCUMENTCATEGORY TYPE STRING,
CUSTOMERRETURN TYPE STRING,
CUSTOMERRETURNITEM TYPE STRING,
DIVISION TYPE STRING,
DISTRIBUTIONCHANNEL TYPE STRING,
SALESPROMOTION TYPE STRING,
PARTIALDELIVERYISALLOWED TYPE STRING,
SHIPPINGPOINT TYPE STRING,
SALESDOCUMENTTYPE TYPE STRING,
SALESORGANIZATION TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CRELCRETDELFFS_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_CRELCRETDELFFS_STR-MANDT sy-vline 
WA_CRELCRETDELFFS_STR-DOCRELATIONSHIPUUID sy-vline 
WA_CRELCRETDELFFS_STR-SALESDOCUMENT sy-vline 
WA_CRELCRETDELFFS_STR-SALESDOCUMENTITEM sy-vline 
WA_CRELCRETDELFFS_STR-SUBSEQUENTDOCUMENTCATEGORY sy-vline 
WA_CRELCRETDELFFS_STR-PRECEDINGDOCUMENT sy-vline 
WA_CRELCRETDELFFS_STR-PRECEDINGDOCUMENTITEM sy-vline 
WA_CRELCRETDELFFS_STR-PRECEDINGDOCUMENTCATEGORY sy-vline 
WA_CRELCRETDELFFS_STR-CUSTOMERRETURN sy-vline 
WA_CRELCRETDELFFS_STR-CUSTOMERRETURNITEM sy-vline 
WA_CRELCRETDELFFS_STR-DIVISION sy-vline 
WA_CRELCRETDELFFS_STR-DISTRIBUTIONCHANNEL sy-vline 
WA_CRELCRETDELFFS_STR-SALESPROMOTION sy-vline 
WA_CRELCRETDELFFS_STR-PARTIALDELIVERYISALLOWED sy-vline 
WA_CRELCRETDELFFS_STR-SHIPPINGPOINT sy-vline 
WA_CRELCRETDELFFS_STR-SALESDOCUMENTTYPE sy-vline 
WA_CRELCRETDELFFS_STR-SALESORGANIZATION sy-vline      INTO ld_text SEPARATED BY SPACE.

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