ABAP Select data from SAP table E3COST2 into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

Below is a number of ABAP code snippets to demonstrate how to select data from SAP E3COST2 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 E3COST2. 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 E3COST2 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_E3COST2 TYPE STANDARD TABLE OF E3COST2,
      WA_E3COST2 TYPE E3COST2,
      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: <E3COST2> TYPE E3COST2.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_E3COST2.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM E3COST2
  INTO TABLE IT_E3COST2.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM E3COST2
*  INTO TABLE @DATA(IT_E3COST22).
*--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_E3COST2 INDEX 1 INTO DATA(WA_E3COST22).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_E3COST2 ASSIGNING <E3COST2>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<E3COST2>-TOG001 = 1.
<E3COST2>-TOG002 = 1.
<E3COST2>-TOG003 = 1.
<E3COST2>-TOG004 = 1.
<E3COST2>-TOG005 = 1.

ENDLOOP.

LOOP AT IT_E3COST2 INTO WA_E3COST2.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_E3COST2-TOG006, sy-vline,
  WA_E3COST2-TOG007, sy-vline,
  WA_E3COST2-TOG008, sy-vline,
  WA_E3COST2-TOG009, sy-vline,
  WA_E3COST2-TOG010, sy-vline,
  WA_E3COST2-TOG011, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_E3COST2 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_E3COST2 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_E3COST2 INTO WA_E3COST2.


*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_E3COST2_STR, 
TOG001 TYPE STRING,
TOG002 TYPE STRING,
TOG003 TYPE STRING,
TOG004 TYPE STRING,
TOG005 TYPE STRING,
TOG006 TYPE STRING,
TOG007 TYPE STRING,
TOG008 TYPE STRING,
TOG009 TYPE STRING,
TOG010 TYPE STRING,
TOG011 TYPE STRING,
TOG012 TYPE STRING,
TOG013 TYPE STRING,
TOG014 TYPE STRING,
TOG015 TYPE STRING,
TOG016 TYPE STRING,
TOF001 TYPE STRING,
TOF002 TYPE STRING,
TOF003 TYPE STRING,
TOF004 TYPE STRING,
TOF005 TYPE STRING,
TOF006 TYPE STRING,
TOF007 TYPE STRING,
TOF008 TYPE STRING,
TOF009 TYPE STRING,
TOF010 TYPE STRING,
TOF011 TYPE STRING,
TOF012 TYPE STRING,
TOF013 TYPE STRING,
TOF014 TYPE STRING,
TOF015 TYPE STRING,
TOF016 TYPE STRING,
TOE001 TYPE STRING,
TOE002 TYPE STRING,
TOE003 TYPE STRING,
TOE004 TYPE STRING,
TOE005 TYPE STRING,
TOE006 TYPE STRING,
TOE007 TYPE STRING,
TOE008 TYPE STRING,
TOE009 TYPE STRING,
TOE010 TYPE STRING,
TOE011 TYPE STRING,
TOE012 TYPE STRING,
TOE013 TYPE STRING,
TOE014 TYPE STRING,
TOE015 TYPE STRING,
TOE016 TYPE STRING,
OWAER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_E3COST2_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_E3COST2_STR-TOG001 sy-vline 
WA_E3COST2_STR-TOG002 sy-vline 
WA_E3COST2_STR-TOG003 sy-vline 
WA_E3COST2_STR-TOG004 sy-vline 
WA_E3COST2_STR-TOG005 sy-vline 
WA_E3COST2_STR-TOG006 sy-vline 
WA_E3COST2_STR-TOG007 sy-vline 
WA_E3COST2_STR-TOG008 sy-vline 
WA_E3COST2_STR-TOG009 sy-vline 
WA_E3COST2_STR-TOG010 sy-vline 
WA_E3COST2_STR-TOG011 sy-vline 
WA_E3COST2_STR-TOG012 sy-vline 
WA_E3COST2_STR-TOG013 sy-vline 
WA_E3COST2_STR-TOG014 sy-vline 
WA_E3COST2_STR-TOG015 sy-vline 
WA_E3COST2_STR-TOG016 sy-vline 
WA_E3COST2_STR-TOF001 sy-vline 
WA_E3COST2_STR-TOF002 sy-vline 
WA_E3COST2_STR-TOF003 sy-vline 
WA_E3COST2_STR-TOF004 sy-vline 
WA_E3COST2_STR-TOF005 sy-vline 
WA_E3COST2_STR-TOF006 sy-vline 
WA_E3COST2_STR-TOF007 sy-vline 
WA_E3COST2_STR-TOF008 sy-vline 
WA_E3COST2_STR-TOF009 sy-vline 
WA_E3COST2_STR-TOF010 sy-vline 
WA_E3COST2_STR-TOF011 sy-vline 
WA_E3COST2_STR-TOF012 sy-vline 
WA_E3COST2_STR-TOF013 sy-vline 
WA_E3COST2_STR-TOF014 sy-vline 
WA_E3COST2_STR-TOF015 sy-vline 
WA_E3COST2_STR-TOF016 sy-vline 
WA_E3COST2_STR-TOE001 sy-vline 
WA_E3COST2_STR-TOE002 sy-vline 
WA_E3COST2_STR-TOE003 sy-vline 
WA_E3COST2_STR-TOE004 sy-vline 
WA_E3COST2_STR-TOE005 sy-vline 
WA_E3COST2_STR-TOE006 sy-vline 
WA_E3COST2_STR-TOE007 sy-vline 
WA_E3COST2_STR-TOE008 sy-vline 
WA_E3COST2_STR-TOE009 sy-vline 
WA_E3COST2_STR-TOE010 sy-vline 
WA_E3COST2_STR-TOE011 sy-vline 
WA_E3COST2_STR-TOE012 sy-vline 
WA_E3COST2_STR-TOE013 sy-vline 
WA_E3COST2_STR-TOE014 sy-vline 
WA_E3COST2_STR-TOE015 sy-vline 
WA_E3COST2_STR-TOE016 sy-vline 
WA_E3COST2_STR-OWAER sy-vline      INTO ld_text SEPARATED BY SPACE.

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