ABAP Select data from SAP table CUSTOMERRETURNS into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CUSTOMERRETURNS 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 CUSTOMERRETURNS. 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 CUSTOMERRETURNS 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_CUSTOMERRETURNS TYPE STANDARD TABLE OF CUSTOMERRETURNS,
      WA_CUSTOMERRETURNS TYPE CUSTOMERRETURNS,
      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: <CUSTOMERRETURNS> TYPE CUSTOMERRETURNS.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CUSTOMERRETURNS
*  INTO TABLE @DATA(IT_CUSTOMERRETURNS2).
*--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_CUSTOMERRETURNS INDEX 1 INTO DATA(WA_CUSTOMERRETURNS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CUSTOMERRETURNS>-MANDT = 1.
<CUSTOMERRETURNS>-CUSTOMERRETURN = 1.
<CUSTOMERRETURNS>-SALESORGANIZATION = 1.
<CUSTOMERRETURNS>-DISTRIBUTIONCHANNEL = 1.
<CUSTOMERRETURNS>-ORGANIZATIONDIVISION = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CUSTOMERRETURNS-SOLDTOPARTY, sy-vline,
  WA_CUSTOMERRETURNS-SALESOFFICE, sy-vline,
  WA_CUSTOMERRETURNS-SALESGROUP, sy-vline,
  WA_CUSTOMERRETURNS-CUSTOMERRETURNTYPE, sy-vline,
  WA_CUSTOMERRETURNS-CUSTOMERACCOUNTGROUP, sy-vline,
  WA_CUSTOMERRETURNS-CUSTOMERRETURNISREADYFORREFUND, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CUSTOMERRETURNS 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_CUSTOMERRETURNS 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_CUSTOMERRETURNS INTO WA_CUSTOMERRETURNS.


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

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

*Conversion exit AUART, internal->external for field CUSTOMERRETURNTYPE
CALL FUNCTION 'CONVERSION_EXIT_AUART_OUTPUT'
  EXPORTING
    input =                      WA_CUSTOMERRETURNS-CUSTOMERRETURNTYPE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CUSTOMERRETURNS-CUSTOMERRETURNTYPE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field REFERENCESDDOCUMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CUSTOMERRETURNS-REFERENCESDDOCUMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CUSTOMERRETURNS-REFERENCESDDOCUMENT.
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_CUSTOMERRETURNS_STR, 
MANDT TYPE STRING,
CUSTOMERRETURN TYPE STRING,
SALESORGANIZATION TYPE STRING,
DISTRIBUTIONCHANNEL TYPE STRING,
ORGANIZATIONDIVISION TYPE STRING,
SOLDTOPARTY TYPE STRING,
SALESOFFICE TYPE STRING,
SALESGROUP TYPE STRING,
CUSTOMERRETURNTYPE TYPE STRING,
CUSTOMERACCOUNTGROUP TYPE STRING,
CUSTOMERRETURNISREADYFORREFUND TYPE STRING,
OVRLRELDFORSUBSQNTPROCGSTS TYPE STRING,
CRITICALITYCODE TYPE STRING,
LASTCHANGEDATETIME TYPE STRING,
CUSTOMERRETURNISWITHINONEWEEK TYPE STRING,
OVERALLDELIVERYSTATUS TYPE STRING,
TOTALNETAMOUNT TYPE STRING,
TRANSACTIONCURRENCY TYPE STRING,
REFERENCESDDOCUMENT TYPE STRING,
REFERENCESDDOCUMENTCATEGORY TYPE STRING,
REFERENCEDOCUMENT TYPE STRING,
CUSTOMERNAME TYPE STRING,
OVERALLSDPROCESSSTATUS TYPE STRING,
CUSTOMERCLASSIFICATION TYPE STRING,
CREATEDBYUSER TYPE STRING,
LASTCHANGEDBYUSER TYPE STRING,
AUTHORIZATIONGROUP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CUSTOMERRETURNS_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_CUSTOMERRETURNS_STR-MANDT sy-vline 
WA_CUSTOMERRETURNS_STR-CUSTOMERRETURN sy-vline 
WA_CUSTOMERRETURNS_STR-SALESORGANIZATION sy-vline 
WA_CUSTOMERRETURNS_STR-DISTRIBUTIONCHANNEL sy-vline 
WA_CUSTOMERRETURNS_STR-ORGANIZATIONDIVISION sy-vline 
WA_CUSTOMERRETURNS_STR-SOLDTOPARTY sy-vline 
WA_CUSTOMERRETURNS_STR-SALESOFFICE sy-vline 
WA_CUSTOMERRETURNS_STR-SALESGROUP sy-vline 
WA_CUSTOMERRETURNS_STR-CUSTOMERRETURNTYPE sy-vline 
WA_CUSTOMERRETURNS_STR-CUSTOMERACCOUNTGROUP sy-vline 
WA_CUSTOMERRETURNS_STR-CUSTOMERRETURNISREADYFORREFUND sy-vline 
WA_CUSTOMERRETURNS_STR-OVRLRELDFORSUBSQNTPROCGSTS sy-vline 
WA_CUSTOMERRETURNS_STR-CRITICALITYCODE sy-vline 
WA_CUSTOMERRETURNS_STR-LASTCHANGEDATETIME sy-vline 
WA_CUSTOMERRETURNS_STR-CUSTOMERRETURNISWITHINONEWEEK sy-vline 
WA_CUSTOMERRETURNS_STR-OVERALLDELIVERYSTATUS sy-vline 
WA_CUSTOMERRETURNS_STR-TOTALNETAMOUNT sy-vline 
WA_CUSTOMERRETURNS_STR-TRANSACTIONCURRENCY sy-vline 
WA_CUSTOMERRETURNS_STR-REFERENCESDDOCUMENT sy-vline 
WA_CUSTOMERRETURNS_STR-REFERENCESDDOCUMENTCATEGORY sy-vline 
WA_CUSTOMERRETURNS_STR-REFERENCEDOCUMENT sy-vline 
WA_CUSTOMERRETURNS_STR-CUSTOMERNAME sy-vline 
WA_CUSTOMERRETURNS_STR-OVERALLSDPROCESSSTATUS sy-vline 
WA_CUSTOMERRETURNS_STR-CUSTOMERCLASSIFICATION sy-vline 
WA_CUSTOMERRETURNS_STR-CREATEDBYUSER sy-vline 
WA_CUSTOMERRETURNS_STR-LASTCHANGEDBYUSER sy-vline 
WA_CUSTOMERRETURNS_STR-AUTHORIZATIONGROUP sy-vline      INTO ld_text SEPARATED BY SPACE.

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