ABAP Select data from SAP table FCLM_S_ACCOUNT_STAGING_CDS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FCLM_S_ACCOUNT_STAGING_CDS
*  INTO TABLE @DATA(IT_FCLM_S_ACCOUNT_STAGING_CDS2).
*--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_FCLM_S_ACCOUNT_STAGING_CDS INDEX 1 INTO DATA(WA_FCLM_S_ACCOUNT_STAGING_CDS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FCLM_S_ACCOUNT_STAGING_CDS>-COMPANYCODE = 1.
<FCLM_S_ACCOUNT_STAGING_CDS>-GLACCOUNT = 1.
<FCLM_S_ACCOUNT_STAGING_CDS>-CHARTOFACCOUNTS = 1.
<FCLM_S_ACCOUNT_STAGING_CDS>-GLACCOUNTTYPE = 1.
<FCLM_S_ACCOUNT_STAGING_CDS>-GLACCOUNTSUBTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FCLM_S_ACCOUNT_STAGING_CDS-GLACCOUNTGROUP, sy-vline,
  WA_FCLM_S_ACCOUNT_STAGING_CDS-ISBALANCESHEETACCOUNT, sy-vline,
  WA_FCLM_S_ACCOUNT_STAGING_CDS-RECONCILIATIONACCOUNTTYPE, sy-vline,
  WA_FCLM_S_ACCOUNT_STAGING_CDS-ISOPENITEMMANAGED, sy-vline,
  WA_FCLM_S_ACCOUNT_STAGING_CDS-TAXCATEGORY, sy-vline,
  WA_FCLM_S_ACCOUNT_STAGING_CDS-ISCASHFLOWACCOUNT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FCLM_S_ACCOUNT_STAGING_CDS 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_FCLM_S_ACCOUNT_STAGING_CDS 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_FCLM_S_ACCOUNT_STAGING_CDS INTO WA_FCLM_S_ACCOUNT_STAGING_CDS.


*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 GLACCOUNT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FCLM_S_ACCOUNT_STAGING_CDS-GLACCOUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FCLM_S_ACCOUNT_STAGING_CDS-GLACCOUNT.
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_FCLM_S_ACCOUNT_STAGING_CDS_STR, 
COMPANYCODE TYPE STRING,
GLACCOUNT TYPE STRING,
CHARTOFACCOUNTS TYPE STRING,
GLACCOUNTTYPE TYPE STRING,
GLACCOUNTSUBTYPE TYPE STRING,
GLACCOUNTGROUP TYPE STRING,
ISBALANCESHEETACCOUNT TYPE STRING,
RECONCILIATIONACCOUNTTYPE TYPE STRING,
ISOPENITEMMANAGED TYPE STRING,
TAXCATEGORY TYPE STRING,
ISCASHFLOWACCOUNT TYPE STRING,
PLANNINGLEVEL TYPE STRING,
HOUSEBANK TYPE STRING,
HOUSEBANKACCOUNT TYPE STRING,
NR_HOUSEBANKACCOUNT TYPE STRING,
NR_PAYMENTCLEARING TYPE STRING,
NR_BANKCLEARING TYPE STRING,
NR_TRMCLEARING TYPE STRING,
ACCOUNTISMARKEDFORDELETION TYPE STRING,
CREATIONDATE TYPE STRING,
LASTCHANGEDATETIME TYPE STRING,
FLOW_TYPE_INC TYPE STRING,
FLOW_TYPE_DEC TYPE STRING,
FLOW_LEVEL_INC TYPE STRING,
FLOW_LEVEL_DEC TYPE STRING,
EXPIRATION TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FCLM_S_ACCOUNT_STAGING_CDS_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_FCLM_S_ACCOUNT_STAGING_CDS_STR-COMPANYCODE sy-vline 
WA_FCLM_S_ACCOUNT_STAGING_CDS_STR-GLACCOUNT sy-vline 
WA_FCLM_S_ACCOUNT_STAGING_CDS_STR-CHARTOFACCOUNTS sy-vline 
WA_FCLM_S_ACCOUNT_STAGING_CDS_STR-GLACCOUNTTYPE sy-vline 
WA_FCLM_S_ACCOUNT_STAGING_CDS_STR-GLACCOUNTSUBTYPE sy-vline 
WA_FCLM_S_ACCOUNT_STAGING_CDS_STR-GLACCOUNTGROUP sy-vline 
WA_FCLM_S_ACCOUNT_STAGING_CDS_STR-ISBALANCESHEETACCOUNT sy-vline 
WA_FCLM_S_ACCOUNT_STAGING_CDS_STR-RECONCILIATIONACCOUNTTYPE sy-vline 
WA_FCLM_S_ACCOUNT_STAGING_CDS_STR-ISOPENITEMMANAGED sy-vline 
WA_FCLM_S_ACCOUNT_STAGING_CDS_STR-TAXCATEGORY sy-vline 
WA_FCLM_S_ACCOUNT_STAGING_CDS_STR-ISCASHFLOWACCOUNT sy-vline 
WA_FCLM_S_ACCOUNT_STAGING_CDS_STR-PLANNINGLEVEL sy-vline 
WA_FCLM_S_ACCOUNT_STAGING_CDS_STR-HOUSEBANK sy-vline 
WA_FCLM_S_ACCOUNT_STAGING_CDS_STR-HOUSEBANKACCOUNT sy-vline 
WA_FCLM_S_ACCOUNT_STAGING_CDS_STR-NR_HOUSEBANKACCOUNT sy-vline 
WA_FCLM_S_ACCOUNT_STAGING_CDS_STR-NR_PAYMENTCLEARING sy-vline 
WA_FCLM_S_ACCOUNT_STAGING_CDS_STR-NR_BANKCLEARING sy-vline 
WA_FCLM_S_ACCOUNT_STAGING_CDS_STR-NR_TRMCLEARING sy-vline 
WA_FCLM_S_ACCOUNT_STAGING_CDS_STR-ACCOUNTISMARKEDFORDELETION sy-vline 
WA_FCLM_S_ACCOUNT_STAGING_CDS_STR-CREATIONDATE sy-vline 
WA_FCLM_S_ACCOUNT_STAGING_CDS_STR-LASTCHANGEDATETIME sy-vline 
WA_FCLM_S_ACCOUNT_STAGING_CDS_STR-FLOW_TYPE_INC sy-vline 
WA_FCLM_S_ACCOUNT_STAGING_CDS_STR-FLOW_TYPE_DEC sy-vline 
WA_FCLM_S_ACCOUNT_STAGING_CDS_STR-FLOW_LEVEL_INC sy-vline 
WA_FCLM_S_ACCOUNT_STAGING_CDS_STR-FLOW_LEVEL_DEC sy-vline 
WA_FCLM_S_ACCOUNT_STAGING_CDS_STR-EXPIRATION sy-vline      INTO ld_text SEPARATED BY SPACE.

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