ABAP Select data from SAP table IDMX_CFDI_CANC_DATA_REQ into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IDMX_CFDI_CANC_DATA_REQ
*  INTO TABLE @DATA(IT_IDMX_CFDI_CANC_DATA_REQ2).
*--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_IDMX_CFDI_CANC_DATA_REQ INDEX 1 INTO DATA(WA_IDMX_CFDI_CANC_DATA_REQ2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IDMX_CFDI_CANC_DATA_REQ>-DOCUMENT_DATA = 1.
<IDMX_CFDI_CANC_DATA_REQ>-VERSION_XML = 1.
<IDMX_CFDI_CANC_DATA_REQ>-OFF_DOC_PRE = 1.
<IDMX_CFDI_CANC_DATA_REQ>-OFF_DOC_NUM = 1.
<IDMX_CFDI_CANC_DATA_REQ>-INV_DATE_TIME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IDMX_CFDI_CANC_DATA_REQ-PAYM_MEANS, sy-vline,
  WA_IDMX_CFDI_CANC_DATA_REQ-CERTIFICATE_NUMBER, sy-vline,
  WA_IDMX_CFDI_CANC_DATA_REQ-PAYM_TERMS, sy-vline,
  WA_IDMX_CFDI_CANC_DATA_REQ-SUB_TOTAL, sy-vline,
  WA_IDMX_CFDI_CANC_DATA_REQ-DISCOUNT, sy-vline,
  WA_IDMX_CFDI_CANC_DATA_REQ-CURRENCY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IDMX_CFDI_CANC_DATA_REQ 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_IDMX_CFDI_CANC_DATA_REQ 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_IDMX_CFDI_CANC_DATA_REQ INTO WA_IDMX_CFDI_CANC_DATA_REQ.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_IDMX_CFDI_CANC_DATA_REQ_STR, 
DOCUMENT_DATA TYPE STRING,
VERSION_XML TYPE STRING,
OFF_DOC_PRE TYPE STRING,
OFF_DOC_NUM TYPE STRING,
INV_DATE_TIME TYPE STRING,
PAYM_MEANS TYPE STRING,
CERTIFICATE_NUMBER TYPE STRING,
PAYM_TERMS TYPE STRING,
SUB_TOTAL TYPE STRING,
DISCOUNT TYPE STRING,
CURRENCY TYPE STRING,
EXCHANGE_RATE TYPE STRING,
TOTAL TYPE STRING,
DOC_TYPE TYPE STRING,
PAYM_METHD TYPE STRING,
ISSUING_PLACE TYPE STRING,
CONFIRMATION TYPE STRING,
ACCOUNT_NUMBER TYPE STRING,
INST_ORI_FOLIO TYPE STRING,
INST_ORI_PREFIX TYPE STRING,
INST_ORI_DATE TYPE STRING,
INST_ORI_AMOUNT TYPE STRING,
CANC_DATA TYPE STRING,
RFCEMISOR TYPE STRING,
UUID TYPE STRING,
CODESTATUS TYPE STRING,
FECHA_C TYPE STRING,
FECHA_A TYPE STRING,
ESTATUSUUID TYPE STRING,
CANCELED TYPE STRING,
RFCRECEPTOR TYPE STRING,
TOTAL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IDMX_CFDI_CANC_DATA_REQ_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_IDMX_CFDI_CANC_DATA_REQ_STR-DOCUMENT_DATA sy-vline 
WA_IDMX_CFDI_CANC_DATA_REQ_STR-VERSION_XML sy-vline 
WA_IDMX_CFDI_CANC_DATA_REQ_STR-OFF_DOC_PRE sy-vline 
WA_IDMX_CFDI_CANC_DATA_REQ_STR-OFF_DOC_NUM sy-vline 
WA_IDMX_CFDI_CANC_DATA_REQ_STR-INV_DATE_TIME sy-vline 
WA_IDMX_CFDI_CANC_DATA_REQ_STR-PAYM_MEANS sy-vline 
WA_IDMX_CFDI_CANC_DATA_REQ_STR-CERTIFICATE_NUMBER sy-vline 
WA_IDMX_CFDI_CANC_DATA_REQ_STR-PAYM_TERMS sy-vline 
WA_IDMX_CFDI_CANC_DATA_REQ_STR-SUB_TOTAL sy-vline 
WA_IDMX_CFDI_CANC_DATA_REQ_STR-DISCOUNT sy-vline 
WA_IDMX_CFDI_CANC_DATA_REQ_STR-CURRENCY sy-vline 
WA_IDMX_CFDI_CANC_DATA_REQ_STR-EXCHANGE_RATE sy-vline 
WA_IDMX_CFDI_CANC_DATA_REQ_STR-TOTAL sy-vline 
WA_IDMX_CFDI_CANC_DATA_REQ_STR-DOC_TYPE sy-vline 
WA_IDMX_CFDI_CANC_DATA_REQ_STR-PAYM_METHD sy-vline 
WA_IDMX_CFDI_CANC_DATA_REQ_STR-ISSUING_PLACE sy-vline 
WA_IDMX_CFDI_CANC_DATA_REQ_STR-CONFIRMATION sy-vline 
WA_IDMX_CFDI_CANC_DATA_REQ_STR-ACCOUNT_NUMBER sy-vline 
WA_IDMX_CFDI_CANC_DATA_REQ_STR-INST_ORI_FOLIO sy-vline 
WA_IDMX_CFDI_CANC_DATA_REQ_STR-INST_ORI_PREFIX sy-vline 
WA_IDMX_CFDI_CANC_DATA_REQ_STR-INST_ORI_DATE sy-vline 
WA_IDMX_CFDI_CANC_DATA_REQ_STR-INST_ORI_AMOUNT sy-vline 
WA_IDMX_CFDI_CANC_DATA_REQ_STR-CANC_DATA sy-vline 
WA_IDMX_CFDI_CANC_DATA_REQ_STR-RFCEMISOR sy-vline 
WA_IDMX_CFDI_CANC_DATA_REQ_STR-UUID sy-vline 
WA_IDMX_CFDI_CANC_DATA_REQ_STR-CODESTATUS sy-vline 
WA_IDMX_CFDI_CANC_DATA_REQ_STR-FECHA_C sy-vline 
WA_IDMX_CFDI_CANC_DATA_REQ_STR-FECHA_A sy-vline 
WA_IDMX_CFDI_CANC_DATA_REQ_STR-ESTATUSUUID sy-vline 
WA_IDMX_CFDI_CANC_DATA_REQ_STR-CANCELED sy-vline 
WA_IDMX_CFDI_CANC_DATA_REQ_STR-RFCRECEPTOR sy-vline 
WA_IDMX_CFDI_CANC_DATA_REQ_STR-TOTAL sy-vline      INTO ld_text SEPARATED BY SPACE.

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