ABAP Select data from SAP table FMBLYRCL_SCREEN into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FMBLYRCL_SCREEN
*  INTO TABLE @DATA(IT_FMBLYRCL_SCREEN2).
*--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_FMBLYRCL_SCREEN INDEX 1 INTO DATA(WA_FMBLYRCL_SCREEN2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FMBLYRCL_SCREEN>-BUKRS = 1.
<FMBLYRCL_SCREEN>-FIKRS = 1.
<FMBLYRCL_SCREEN>-FUND = 1.
<FMBLYRCL_SCREEN>-FUND_TYPE = 1.
<FMBLYRCL_SCREEN>-FINUSE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FMBLYRCL_SCREEN-FUND_CENTER, sy-vline,
  WA_FMBLYRCL_SCREEN-FAREA, sy-vline,
  WA_FMBLYRCL_SCREEN-MEASURE, sy-vline,
  WA_FMBLYRCL_SCREEN-ACCT, sy-vline,
  WA_FMBLYRCL_SCREEN-BLART, sy-vline,
  WA_FMBLYRCL_SCREEN-BLDAT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FMBLYRCL_SCREEN 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_FMBLYRCL_SCREEN 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_FMBLYRCL_SCREEN INTO WA_FMBLYRCL_SCREEN.


*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 ACCT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FMBLYRCL_SCREEN-ACCT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMBLYRCL_SCREEN-ACCT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VERS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FMBLYRCL_SCREEN-VERS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMBLYRCL_SCREEN-VERS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ACCT_NO_BUD
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FMBLYRCL_SCREEN-ACCT_NO_BUD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMBLYRCL_SCREEN-ACCT_NO_BUD.
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_FMBLYRCL_SCREEN_STR, 
BUKRS TYPE STRING,
FIKRS TYPE STRING,
FUND TYPE STRING,
FUND_TYPE TYPE STRING,
FINUSE TYPE STRING,
FUND_CENTER TYPE STRING,
FAREA TYPE STRING,
MEASURE TYPE STRING,
ACCT TYPE STRING,
BLART TYPE STRING,
BLDAT TYPE STRING,
BUDAT TYPE STRING,
MONAT TYPE STRING,
BBLA TYPE STRING,
VERS TYPE STRING,
ACCT_NO_BUD TYPE STRING,
BUDGET_PD TYPE STRING,
KEY_DATE_MIG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FMBLYRCL_SCREEN_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_FMBLYRCL_SCREEN_STR-BUKRS sy-vline 
WA_FMBLYRCL_SCREEN_STR-FIKRS sy-vline 
WA_FMBLYRCL_SCREEN_STR-FUND sy-vline 
WA_FMBLYRCL_SCREEN_STR-FUND_TYPE sy-vline 
WA_FMBLYRCL_SCREEN_STR-FINUSE sy-vline 
WA_FMBLYRCL_SCREEN_STR-FUND_CENTER sy-vline 
WA_FMBLYRCL_SCREEN_STR-FAREA sy-vline 
WA_FMBLYRCL_SCREEN_STR-MEASURE sy-vline 
WA_FMBLYRCL_SCREEN_STR-ACCT sy-vline 
WA_FMBLYRCL_SCREEN_STR-BLART sy-vline 
WA_FMBLYRCL_SCREEN_STR-BLDAT sy-vline 
WA_FMBLYRCL_SCREEN_STR-BUDAT sy-vline 
WA_FMBLYRCL_SCREEN_STR-MONAT sy-vline 
WA_FMBLYRCL_SCREEN_STR-BBLA sy-vline 
WA_FMBLYRCL_SCREEN_STR-VERS sy-vline 
WA_FMBLYRCL_SCREEN_STR-ACCT_NO_BUD sy-vline 
WA_FMBLYRCL_SCREEN_STR-BUDGET_PD sy-vline 
WA_FMBLYRCL_SCREEN_STR-KEY_DATE_MIG sy-vline      INTO ld_text SEPARATED BY SPACE.

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