ABAP Select data from SAP table COSTS01 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP COSTS01 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 COSTS01. 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 COSTS01 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_COSTS01 TYPE STANDARD TABLE OF COSTS01,
      WA_COSTS01 TYPE COSTS01,
      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: <COSTS01> TYPE COSTS01.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_COSTS01.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM COSTS01
  INTO TABLE IT_COSTS01.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM COSTS01
*  INTO TABLE @DATA(IT_COSTS012).
*--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_COSTS01 INDEX 1 INTO DATA(WA_COSTS012).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_COSTS01 ASSIGNING <COSTS01>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<COSTS01>-PLANS = 1.
<COSTS01>-PERNR = 1.
<COSTS01>-CITEM = 1.
<COSTS01>-DATAB = 1.
<COSTS01>-DATBI = 1.

ENDLOOP.

LOOP AT IT_COSTS01 INTO WA_COSTS01.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_COSTS01-FIKRS, sy-vline,
  WA_COSTS01-FISCPER, sy-vline,
  WA_COSTS01-FISCVAR, sy-vline,
  WA_COSTS01-BETRG, sy-vline,
  WA_COSTS01-WAERS, sy-vline,
  WA_COSTS01-COST_ELEM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_COSTS01 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_COSTS01 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_COSTS01 INTO WA_COSTS01.


*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 PERI7, internal->external for field FISCPER
CALL FUNCTION 'CONVERSION_EXIT_PERI7_OUTPUT'
  EXPORTING
    input =                      WA_COSTS01-FISCPER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COSTS01-FISCPER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field COST_ELEM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_COSTS01-COST_ELEM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COSTS01-COST_ELEM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit FMCIL, internal->external for field FIPEX
CALL FUNCTION 'CONVERSION_EXIT_FMCIL_OUTPUT'
  EXPORTING
    input =                      WA_COSTS01-FIPEX
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COSTS01-FIPEX.
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_COSTS01_STR, 
PLANS TYPE STRING,
PERNR TYPE STRING,
CITEM TYPE STRING,
DATAB TYPE STRING,
DATBI TYPE STRING,
FIKRS TYPE STRING,
FISCPER TYPE STRING,
FISCVAR TYPE STRING,
BETRG TYPE STRING,
WAERS TYPE STRING,
COST_ELEM TYPE STRING,
FIPEX TYPE STRING,
PCON TYPE STRING,
SCEN TYPE STRING,
SUBTY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_COSTS01_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_COSTS01_STR-PLANS sy-vline 
WA_COSTS01_STR-PERNR sy-vline 
WA_COSTS01_STR-CITEM sy-vline 
WA_COSTS01_STR-DATAB sy-vline 
WA_COSTS01_STR-DATBI sy-vline 
WA_COSTS01_STR-FIKRS sy-vline 
WA_COSTS01_STR-FISCPER sy-vline 
WA_COSTS01_STR-FISCVAR sy-vline 
WA_COSTS01_STR-BETRG sy-vline 
WA_COSTS01_STR-WAERS sy-vline 
WA_COSTS01_STR-COST_ELEM sy-vline 
WA_COSTS01_STR-FIPEX sy-vline 
WA_COSTS01_STR-PCON sy-vline 
WA_COSTS01_STR-SCEN sy-vline 
WA_COSTS01_STR-SUBTY sy-vline      INTO ld_text SEPARATED BY SPACE.

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