ABAP Select data from SAP table EPIC_CBC into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EPIC_CBC
*  INTO TABLE @DATA(IT_EPIC_CBC2).
*--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_EPIC_CBC INDEX 1 INTO DATA(WA_EPIC_CBC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EPIC_CBC>-MANDT = 1.
<EPIC_CBC>-COMPANY_CODE = 1.
<EPIC_CBC>-FISCAL_YEAR = 1.
<EPIC_CBC>-DOCUMENT_NUMBER = 1.
<EPIC_CBC>-DOCUMENT_ITEM_NUMBER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EPIC_CBC-ITEM_NUM, sy-vline,
  WA_EPIC_CBC-ORGUNIT_ID, sy-vline,
  WA_EPIC_CBC-AREA, sy-vline,
  WA_EPIC_CBC-CYCLE_ID, sy-vline,
  WA_EPIC_CBC-LQITEM_ID, sy-vline,
  WA_EPIC_CBC-VENDOR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EPIC_CBC 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_EPIC_CBC 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_EPIC_CBC INTO WA_EPIC_CBC.


*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 GJAHR, internal->external for field FISCAL_YEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_EPIC_CBC-FISCAL_YEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EPIC_CBC-FISCAL_YEAR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit AU172, internal->external for field ASSG_AMT
CALL FUNCTION 'CONVERSION_EXIT_AU172_OUTPUT'
  EXPORTING
    input =                      WA_EPIC_CBC-ASSG_AMT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EPIC_CBC-ASSG_AMT.
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_EPIC_CBC_STR, 
MANDT TYPE STRING,
COMPANY_CODE TYPE STRING,
FISCAL_YEAR TYPE STRING,
DOCUMENT_NUMBER TYPE STRING,
DOCUMENT_ITEM_NUMBER TYPE STRING,
ITEM_NUM TYPE STRING,
ORGUNIT_ID TYPE STRING,
AREA TYPE STRING,
CYCLE_ID TYPE STRING,
LQITEM_ID TYPE STRING,
VENDOR TYPE STRING,
CUSTOMER TYPE STRING,
DIRECTION TYPE STRING,
ASSG_AMT TYPE STRING,
CURRENCY TYPE STRING,
GUID_CB TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EPIC_CBC_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_EPIC_CBC_STR-MANDT sy-vline 
WA_EPIC_CBC_STR-COMPANY_CODE sy-vline 
WA_EPIC_CBC_STR-FISCAL_YEAR sy-vline 
WA_EPIC_CBC_STR-DOCUMENT_NUMBER sy-vline 
WA_EPIC_CBC_STR-DOCUMENT_ITEM_NUMBER sy-vline 
WA_EPIC_CBC_STR-ITEM_NUM sy-vline 
WA_EPIC_CBC_STR-ORGUNIT_ID sy-vline 
WA_EPIC_CBC_STR-AREA sy-vline 
WA_EPIC_CBC_STR-CYCLE_ID sy-vline 
WA_EPIC_CBC_STR-LQITEM_ID sy-vline 
WA_EPIC_CBC_STR-VENDOR sy-vline 
WA_EPIC_CBC_STR-CUSTOMER sy-vline 
WA_EPIC_CBC_STR-DIRECTION sy-vline 
WA_EPIC_CBC_STR-ASSG_AMT sy-vline 
WA_EPIC_CBC_STR-CURRENCY sy-vline 
WA_EPIC_CBC_STR-GUID_CB sy-vline      INTO ld_text SEPARATED BY SPACE.

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