ABAP Select data from SAP table BAPISCALES2 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP BAPISCALES2 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 BAPISCALES2. 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 BAPISCALES2 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_BAPISCALES2 TYPE STANDARD TABLE OF BAPISCALES2,
      WA_BAPISCALES2 TYPE BAPISCALES2,
      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: <BAPISCALES2> TYPE BAPISCALES2.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_BAPISCALES2.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM BAPISCALES2
  INTO TABLE IT_BAPISCALES2.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BAPISCALES2
*  INTO TABLE @DATA(IT_BAPISCALES22).
*--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_BAPISCALES2 INDEX 1 INTO DATA(WA_BAPISCALES22).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_BAPISCALES2 ASSIGNING <BAPISCALES2>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BAPISCALES2>-PROCRELATIONID = 1.
<BAPISCALES2>-COUNTER = 1.
<BAPISCALES2>-VAL_FROM = 1.
<BAPISCALES2>-VAL_TO = 1.
<BAPISCALES2>-FIX_COST = 1.

ENDLOOP.

LOOP AT IT_BAPISCALES2 INTO WA_BAPISCALES2.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BAPISCALES2-VAR_COST, sy-vline,
  WA_BAPISCALES2-CURRENCY, sy-vline,
  WA_BAPISCALES2-CURRENCY_ISO, sy-vline,
  WA_BAPISCALES2-LIMIT, sy-vline,
  WA_BAPISCALES2-LIMIT_INCL, sy-vline,
  WA_BAPISCALES2-UPPER_LIMIT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BAPISCALES2 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_BAPISCALES2 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_BAPISCALES2 INTO WA_BAPISCALES2.


*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 CUNIT, internal->external for field BASE_UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_BAPISCALES2-BASE_UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPISCALES2-BASE_UNIT.
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_BAPISCALES2_STR, 
PROCRELATIONID TYPE STRING,
COUNTER TYPE STRING,
VAL_FROM TYPE STRING,
VAL_TO TYPE STRING,
FIX_COST TYPE STRING,
VAR_COST TYPE STRING,
CURRENCY TYPE STRING,
CURRENCY_ISO TYPE STRING,
LIMIT TYPE STRING,
LIMIT_INCL TYPE STRING,
UPPER_LIMIT TYPE STRING,
UPPER_LIMIT_INCL TYPE STRING,
BASE_UNIT TYPE STRING,
BASE_UNIT_ISO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BAPISCALES2_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_BAPISCALES2_STR-PROCRELATIONID sy-vline 
WA_BAPISCALES2_STR-COUNTER sy-vline 
WA_BAPISCALES2_STR-VAL_FROM sy-vline 
WA_BAPISCALES2_STR-VAL_TO sy-vline 
WA_BAPISCALES2_STR-FIX_COST sy-vline 
WA_BAPISCALES2_STR-VAR_COST sy-vline 
WA_BAPISCALES2_STR-CURRENCY sy-vline 
WA_BAPISCALES2_STR-CURRENCY_ISO sy-vline 
WA_BAPISCALES2_STR-LIMIT sy-vline 
WA_BAPISCALES2_STR-LIMIT_INCL sy-vline 
WA_BAPISCALES2_STR-UPPER_LIMIT sy-vline 
WA_BAPISCALES2_STR-UPPER_LIMIT_INCL sy-vline 
WA_BAPISCALES2_STR-BASE_UNIT sy-vline 
WA_BAPISCALES2_STR-BASE_UNIT_ISO sy-vline      INTO ld_text SEPARATED BY SPACE.

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