ABAP Select data from SAP table SEPA_STR_DATA_MANDATE_DATA_GFN into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SEPA_STR_DATA_MANDATE_DATA_GFN
*  INTO TABLE @DATA(IT_SEPA_STR_DATA_MANDATE_DATA_GFN2).
*--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_SEPA_STR_DATA_MANDATE_DATA_GFN INDEX 1 INTO DATA(WA_SEPA_STR_DATA_MANDATE_DATA_GFN2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SEPA_STR_DATA_MANDATE_DATA_GFN>-SEPAMANDATE = 1.
<SEPA_STR_DATA_MANDATE_DATA_GFN>-SEPAPAYMENTTYPE = 1.
<SEPA_STR_DATA_MANDATE_DATA_GFN>-VALIDITYSTARTDATE = 1.
<SEPA_STR_DATA_MANDATE_DATA_GFN>-VALIDITYENDDATE = 1.
<SEPA_STR_DATA_MANDATE_DATA_GFN>-SEPAMANDATESTATUS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SEPA_STR_DATA_MANDATE_DATA_GFN-SEPAMANDATEISB2BMANDATE, sy-vline,
  WA_SEPA_STR_DATA_MANDATE_DATA_GFN-SEPAMANDATEREFERENCETYPE, sy-vline,
  WA_SEPA_STR_DATA_MANDATE_DATA_GFN-SEPAMANDATEREFERENCE, sy-vline,
  WA_SEPA_STR_DATA_MANDATE_DATA_GFN-SENDERTYPE, sy-vline,
  WA_SEPA_STR_DATA_MANDATE_DATA_GFN-SENDER, sy-vline,
  WA_SEPA_STR_DATA_MANDATE_DATA_GFN-RECIPIENTTYPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SEPA_STR_DATA_MANDATE_DATA_GFN 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_SEPA_STR_DATA_MANDATE_DATA_GFN 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_SEPA_STR_DATA_MANDATE_DATA_GFN INTO WA_SEPA_STR_DATA_MANDATE_DATA_GFN.


*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_SEPA_STR_DATA_MANDATE_DATA_GFN_STR, 
SEPAMANDATE TYPE STRING,
SEPAPAYMENTTYPE TYPE STRING,
VALIDITYSTARTDATE TYPE STRING,
VALIDITYENDDATE TYPE STRING,
SEPAMANDATESTATUS TYPE STRING,
SEPAMANDATEISB2BMANDATE TYPE STRING,
SEPAMANDATEREFERENCETYPE TYPE STRING,
SEPAMANDATEREFERENCE TYPE STRING,
SENDERTYPE TYPE STRING,
SENDER TYPE STRING,
RECIPIENTTYPE TYPE STRING,
RECIPIENT TYPE STRING,
CREDITOR TYPE STRING,
SEPAMANDATELASTUSEDATE TYPE STRING,
SEPAMANDATELASTUSEOBJTYPECODE TYPE STRING,
SEPAMANDATELASTUSEPAYMENTDOC TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SEPA_STR_DATA_MANDATE_DATA_GFN_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_SEPA_STR_DATA_MANDATE_DATA_GFN_STR-SEPAMANDATE sy-vline 
WA_SEPA_STR_DATA_MANDATE_DATA_GFN_STR-SEPAPAYMENTTYPE sy-vline 
WA_SEPA_STR_DATA_MANDATE_DATA_GFN_STR-VALIDITYSTARTDATE sy-vline 
WA_SEPA_STR_DATA_MANDATE_DATA_GFN_STR-VALIDITYENDDATE sy-vline 
WA_SEPA_STR_DATA_MANDATE_DATA_GFN_STR-SEPAMANDATESTATUS sy-vline 
WA_SEPA_STR_DATA_MANDATE_DATA_GFN_STR-SEPAMANDATEISB2BMANDATE sy-vline 
WA_SEPA_STR_DATA_MANDATE_DATA_GFN_STR-SEPAMANDATEREFERENCETYPE sy-vline 
WA_SEPA_STR_DATA_MANDATE_DATA_GFN_STR-SEPAMANDATEREFERENCE sy-vline 
WA_SEPA_STR_DATA_MANDATE_DATA_GFN_STR-SENDERTYPE sy-vline 
WA_SEPA_STR_DATA_MANDATE_DATA_GFN_STR-SENDER sy-vline 
WA_SEPA_STR_DATA_MANDATE_DATA_GFN_STR-RECIPIENTTYPE sy-vline 
WA_SEPA_STR_DATA_MANDATE_DATA_GFN_STR-RECIPIENT sy-vline 
WA_SEPA_STR_DATA_MANDATE_DATA_GFN_STR-CREDITOR sy-vline 
WA_SEPA_STR_DATA_MANDATE_DATA_GFN_STR-SEPAMANDATELASTUSEDATE sy-vline 
WA_SEPA_STR_DATA_MANDATE_DATA_GFN_STR-SEPAMANDATELASTUSEOBJTYPECODE sy-vline 
WA_SEPA_STR_DATA_MANDATE_DATA_GFN_STR-SEPAMANDATELASTUSEPAYMENTDOC sy-vline      INTO ld_text SEPARATED BY SPACE.

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