ABAP Select data from SAP table CTE_S_FIN_POST_CB_DOC_ENTRY into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CTE_S_FIN_POST_CB_DOC_ENTRY
*  INTO TABLE @DATA(IT_CTE_S_FIN_POST_CB_DOC_ENTRY2).
*--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_CTE_S_FIN_POST_CB_DOC_ENTRY INDEX 1 INTO DATA(WA_CTE_S_FIN_POST_CB_DOC_ENTRY2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CTE_S_FIN_POST_CB_DOC_ENTRY>-ENTRYID = 1.
<CTE_S_FIN_POST_CB_DOC_ENTRY>-REVERSALENTRYID = 1.
<CTE_S_FIN_POST_CB_DOC_ENTRY>-ENTRYDATE = 1.
<CTE_S_FIN_POST_CB_DOC_ENTRY>-CLEARINGACCOUNT = 1.
<CTE_S_FIN_POST_CB_DOC_ENTRY>-CARDTRANSACTIONID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CTE_S_FIN_POST_CB_DOC_ENTRY-CARDTRANSACTIONPOSTEDCURRENCY, sy-vline,
  WA_CTE_S_FIN_POST_CB_DOC_ENTRY-CARDACCOUNT, sy-vline,
  WA_CTE_S_FIN_POST_CB_DOC_ENTRY-CARDPROGRAMTYPECODE, sy-vline,
  WA_CTE_S_FIN_POST_CB_DOC_ENTRY-EXPENSETYPECODE, sy-vline,
  WA_CTE_S_FIN_POST_CB_DOC_ENTRY-EXPENSETYPENAME, sy-vline,
  WA_CTE_S_FIN_POST_CB_DOC_ENTRY-PERSONALEXPENSEINDICATOR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CTE_S_FIN_POST_CB_DOC_ENTRY 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_CTE_S_FIN_POST_CB_DOC_ENTRY 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_CTE_S_FIN_POST_CB_DOC_ENTRY INTO WA_CTE_S_FIN_POST_CB_DOC_ENTRY.


*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 CLEARINGACCOUNT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CTE_S_FIN_POST_CB_DOC_ENTRY-CLEARINGACCOUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CTE_S_FIN_POST_CB_DOC_ENTRY-CLEARINGACCOUNT.
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_CTE_S_FIN_POST_CB_DOC_ENTRY_STR, 
ENTRYID TYPE STRING,
REVERSALENTRYID TYPE STRING,
ENTRYDATE TYPE STRING,
CLEARINGACCOUNT TYPE STRING,
CARDTRANSACTIONID TYPE STRING,
CARDTRANSACTIONPOSTEDCURRENCY TYPE STRING,
CARDACCOUNT TYPE STRING,
CARDPROGRAMTYPECODE TYPE STRING,
EXPENSETYPECODE TYPE STRING,
EXPENSETYPENAME TYPE STRING,
PERSONALEXPENSEINDICATOR TYPE STRING,
EXTERNALPAYMENTPROVIDER TYPE STRING,
REVERSEINDICATOR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CTE_S_FIN_POST_CB_DOC_ENTRY_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_CTE_S_FIN_POST_CB_DOC_ENTRY_STR-ENTRYID sy-vline 
WA_CTE_S_FIN_POST_CB_DOC_ENTRY_STR-REVERSALENTRYID sy-vline 
WA_CTE_S_FIN_POST_CB_DOC_ENTRY_STR-ENTRYDATE sy-vline 
WA_CTE_S_FIN_POST_CB_DOC_ENTRY_STR-CLEARINGACCOUNT sy-vline 
WA_CTE_S_FIN_POST_CB_DOC_ENTRY_STR-CARDTRANSACTIONID sy-vline 
WA_CTE_S_FIN_POST_CB_DOC_ENTRY_STR-CARDTRANSACTIONPOSTEDCURRENCY sy-vline 
WA_CTE_S_FIN_POST_CB_DOC_ENTRY_STR-CARDACCOUNT sy-vline 
WA_CTE_S_FIN_POST_CB_DOC_ENTRY_STR-CARDPROGRAMTYPECODE sy-vline 
WA_CTE_S_FIN_POST_CB_DOC_ENTRY_STR-EXPENSETYPECODE sy-vline 
WA_CTE_S_FIN_POST_CB_DOC_ENTRY_STR-EXPENSETYPENAME sy-vline 
WA_CTE_S_FIN_POST_CB_DOC_ENTRY_STR-PERSONALEXPENSEINDICATOR sy-vline 
WA_CTE_S_FIN_POST_CB_DOC_ENTRY_STR-EXTERNALPAYMENTPROVIDER sy-vline 
WA_CTE_S_FIN_POST_CB_DOC_ENTRY_STR-REVERSEINDICATOR sy-vline      INTO ld_text SEPARATED BY SPACE.

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