ABAP Select data from SAP table V_FAGL_T881_ROLL into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP V_FAGL_T881_ROLL 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 V_FAGL_T881_ROLL. 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 V_FAGL_T881_ROLL 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_V_FAGL_T881_ROLL TYPE STANDARD TABLE OF V_FAGL_T881_ROLL,
      WA_V_FAGL_T881_ROLL TYPE V_FAGL_T881_ROLL,
      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: <V_FAGL_T881_ROLL> TYPE V_FAGL_T881_ROLL.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_V_FAGL_T881_ROLL.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM V_FAGL_T881_ROLL
  INTO TABLE IT_V_FAGL_T881_ROLL.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V_FAGL_T881_ROLL
*  INTO TABLE @DATA(IT_V_FAGL_T881_ROLL2).
*--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_V_FAGL_T881_ROLL INDEX 1 INTO DATA(WA_V_FAGL_T881_ROLL2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_V_FAGL_T881_ROLL ASSIGNING <V_FAGL_T881_ROLL>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<V_FAGL_T881_ROLL>-MANDT = 1.
<V_FAGL_T881_ROLL>-RLDNR = 1.
<V_FAGL_T881_ROLL>-ROLLUP = 1.
<V_FAGL_T881_ROLL>-VORTRAG = 1.
<V_FAGL_T881_ROLL>-GLFLEX = 1.

ENDLOOP.

LOOP AT IT_V_FAGL_T881_ROLL INTO WA_V_FAGL_T881_ROLL.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V_FAGL_T881_ROLL-NAME, sy-vline,
  WA_V_FAGL_T881_ROLL-APPL, sy-vline,
  WA_V_FAGL_T881_ROLL-SUBAPPL, sy-vline,
  WA_V_FAGL_T881_ROLL-TAB, sy-vline,
  WA_V_FAGL_T881_ROLL-FIX, sy-vline,
  WA_V_FAGL_T881_ROLL-TRCUR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_V_FAGL_T881_ROLL 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_V_FAGL_T881_ROLL 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_V_FAGL_T881_ROLL INTO WA_V_FAGL_T881_ROLL.


*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 RLDNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_V_FAGL_T881_ROLL-RLDNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_FAGL_T881_ROLL-RLDNR.
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_V_FAGL_T881_ROLL_STR, 
MANDT TYPE STRING,
RLDNR TYPE STRING,
ROLLUP TYPE STRING,
VORTRAG TYPE STRING,
GLFLEX TYPE STRING,
NAME TYPE STRING,
APPL TYPE STRING,
SUBAPPL TYPE STRING,
TAB TYPE STRING,
FIX TYPE STRING,
TRCUR TYPE STRING,
LCCUR TYPE STRING,
RCCUR TYPE STRING,
OCCUR TYPE STRING,
SHKZ TYPE STRING,
QUANT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_V_FAGL_T881_ROLL_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_V_FAGL_T881_ROLL_STR-MANDT sy-vline 
WA_V_FAGL_T881_ROLL_STR-RLDNR sy-vline 
WA_V_FAGL_T881_ROLL_STR-ROLLUP sy-vline 
WA_V_FAGL_T881_ROLL_STR-VORTRAG sy-vline 
WA_V_FAGL_T881_ROLL_STR-GLFLEX sy-vline 
WA_V_FAGL_T881_ROLL_STR-NAME sy-vline 
WA_V_FAGL_T881_ROLL_STR-APPL sy-vline 
WA_V_FAGL_T881_ROLL_STR-SUBAPPL sy-vline 
WA_V_FAGL_T881_ROLL_STR-TAB sy-vline 
WA_V_FAGL_T881_ROLL_STR-FIX sy-vline 
WA_V_FAGL_T881_ROLL_STR-TRCUR sy-vline 
WA_V_FAGL_T881_ROLL_STR-LCCUR sy-vline 
WA_V_FAGL_T881_ROLL_STR-RCCUR sy-vline 
WA_V_FAGL_T881_ROLL_STR-OCCUR sy-vline 
WA_V_FAGL_T881_ROLL_STR-SHKZ sy-vline 
WA_V_FAGL_T881_ROLL_STR-QUANT sy-vline      INTO ld_text SEPARATED BY SPACE.

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