ABAP Select data from SAP table FCLM_BAM_S_ENTITY_REQHISTORY into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP FCLM_BAM_S_ENTITY_REQHISTORY 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_BAM_S_ENTITY_REQHISTORY. 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_BAM_S_ENTITY_REQHISTORY 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_BAM_S_ENTITY_REQHISTORY TYPE STANDARD TABLE OF FCLM_BAM_S_ENTITY_REQHISTORY,
      WA_FCLM_BAM_S_ENTITY_REQHISTORY TYPE FCLM_BAM_S_ENTITY_REQHISTORY,
      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_BAM_S_ENTITY_REQHISTORY> TYPE FCLM_BAM_S_ENTITY_REQHISTORY.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FCLM_BAM_S_ENTITY_REQHISTORY
*  INTO TABLE @DATA(IT_FCLM_BAM_S_ENTITY_REQHISTORY2).
*--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_BAM_S_ENTITY_REQHISTORY INDEX 1 INTO DATA(WA_FCLM_BAM_S_ENTITY_REQHISTORY2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FCLM_BAM_S_ENTITY_REQHISTORY>-MANDT = 1.
<FCLM_BAM_S_ENTITY_REQHISTORY>-REQUEST_ID = 1.
<FCLM_BAM_S_ENTITY_REQHISTORY>-REQUEST_STATUS = 1.
<FCLM_BAM_S_ENTITY_REQHISTORY>-ACCOUNT_ACTION = 1.
<FCLM_BAM_S_ENTITY_REQHISTORY>-REQUEST_PROCESS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FCLM_BAM_S_ENTITY_REQHISTORY-TITLE, sy-vline,
  WA_FCLM_BAM_S_ENTITY_REQHISTORY-CREATED_ON, sy-vline,
  WA_FCLM_BAM_S_ENTITY_REQHISTORY-CREATED_BY, sy-vline,
  WA_FCLM_BAM_S_ENTITY_REQHISTORY-CREATED_TM, sy-vline,
  WA_FCLM_BAM_S_ENTITY_REQHISTORY-LASTCHGED_ON, sy-vline,
  WA_FCLM_BAM_S_ENTITY_REQHISTORY-LASTCHGED_BY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FCLM_BAM_S_ENTITY_REQHISTORY 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_BAM_S_ENTITY_REQHISTORY 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_BAM_S_ENTITY_REQHISTORY INTO WA_FCLM_BAM_S_ENTITY_REQHISTORY.


*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_FCLM_BAM_S_ENTITY_REQHISTORY_STR, 
MANDT TYPE STRING,
REQUEST_ID TYPE STRING,
REQUEST_STATUS TYPE STRING,
ACCOUNT_ACTION TYPE STRING,
REQUEST_PROCESS TYPE STRING,
TITLE TYPE STRING,
CREATED_ON TYPE STRING,
CREATED_BY TYPE STRING,
CREATED_TM TYPE STRING,
LASTCHGED_ON TYPE STRING,
LASTCHGED_BY TYPE STRING,
LASTCHGED_TM TYPE STRING,
REQUEST_STEP TYPE STRING,
DUEDATE TYPE STRING,
BYPASS_CHECK_MASS TYPE STRING,
STATUSDESP TYPE STRING,
ACTIONDESP TYPE STRING,
ACC_ID TYPE STRING,
COMPANYCODE TYPE STRING,
CREATEDBYDESP TYPE STRING,
LASTCHGEDBYDESP TYPE STRING,
COMPANYCODEDESP TYPE STRING,
CURRENCY TYPE STRING,
CURRENCYDESP TYPE STRING,
BANKCOUNTRY TYPE STRING,
BANKKEY TYPE STRING,
ACCOUNTTYPE TYPE STRING,
ACCOUNTTYPEDESP TYPE STRING,
ACCOUNTNUMBER TYPE STRING,
BANKNAME TYPE STRING,
BANKCITY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FCLM_BAM_S_ENTITY_REQHISTORY_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_BAM_S_ENTITY_REQHISTORY_STR-MANDT sy-vline 
WA_FCLM_BAM_S_ENTITY_REQHISTORY_STR-REQUEST_ID sy-vline 
WA_FCLM_BAM_S_ENTITY_REQHISTORY_STR-REQUEST_STATUS sy-vline 
WA_FCLM_BAM_S_ENTITY_REQHISTORY_STR-ACCOUNT_ACTION sy-vline 
WA_FCLM_BAM_S_ENTITY_REQHISTORY_STR-REQUEST_PROCESS sy-vline 
WA_FCLM_BAM_S_ENTITY_REQHISTORY_STR-TITLE sy-vline 
WA_FCLM_BAM_S_ENTITY_REQHISTORY_STR-CREATED_ON sy-vline 
WA_FCLM_BAM_S_ENTITY_REQHISTORY_STR-CREATED_BY sy-vline 
WA_FCLM_BAM_S_ENTITY_REQHISTORY_STR-CREATED_TM sy-vline 
WA_FCLM_BAM_S_ENTITY_REQHISTORY_STR-LASTCHGED_ON sy-vline 
WA_FCLM_BAM_S_ENTITY_REQHISTORY_STR-LASTCHGED_BY sy-vline 
WA_FCLM_BAM_S_ENTITY_REQHISTORY_STR-LASTCHGED_TM sy-vline 
WA_FCLM_BAM_S_ENTITY_REQHISTORY_STR-REQUEST_STEP sy-vline 
WA_FCLM_BAM_S_ENTITY_REQHISTORY_STR-DUEDATE sy-vline 
WA_FCLM_BAM_S_ENTITY_REQHISTORY_STR-BYPASS_CHECK_MASS sy-vline 
WA_FCLM_BAM_S_ENTITY_REQHISTORY_STR-STATUSDESP sy-vline 
WA_FCLM_BAM_S_ENTITY_REQHISTORY_STR-ACTIONDESP sy-vline 
WA_FCLM_BAM_S_ENTITY_REQHISTORY_STR-ACC_ID sy-vline 
WA_FCLM_BAM_S_ENTITY_REQHISTORY_STR-COMPANYCODE sy-vline 
WA_FCLM_BAM_S_ENTITY_REQHISTORY_STR-CREATEDBYDESP sy-vline 
WA_FCLM_BAM_S_ENTITY_REQHISTORY_STR-LASTCHGEDBYDESP sy-vline 
WA_FCLM_BAM_S_ENTITY_REQHISTORY_STR-COMPANYCODEDESP sy-vline 
WA_FCLM_BAM_S_ENTITY_REQHISTORY_STR-CURRENCY sy-vline 
WA_FCLM_BAM_S_ENTITY_REQHISTORY_STR-CURRENCYDESP sy-vline 
WA_FCLM_BAM_S_ENTITY_REQHISTORY_STR-BANKCOUNTRY sy-vline 
WA_FCLM_BAM_S_ENTITY_REQHISTORY_STR-BANKKEY sy-vline 
WA_FCLM_BAM_S_ENTITY_REQHISTORY_STR-ACCOUNTTYPE sy-vline 
WA_FCLM_BAM_S_ENTITY_REQHISTORY_STR-ACCOUNTTYPEDESP sy-vline 
WA_FCLM_BAM_S_ENTITY_REQHISTORY_STR-ACCOUNTNUMBER sy-vline 
WA_FCLM_BAM_S_ENTITY_REQHISTORY_STR-BANKNAME sy-vline 
WA_FCLM_BAM_S_ENTITY_REQHISTORY_STR-BANKCITY sy-vline      INTO ld_text SEPARATED BY SPACE.

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