ABAP Select data from SAP table FICA_INV_S_BIHEAD_EDR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FICA_INV_S_BIHEAD_EDR
*  INTO TABLE @DATA(IT_FICA_INV_S_BIHEAD_EDR2).
*--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_FICA_INV_S_BIHEAD_EDR INDEX 1 INTO DATA(WA_FICA_INV_S_BIHEAD_EDR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FICA_INV_S_BIHEAD_EDR>-WA_BIHEAD_EDR = 1.
<FICA_INV_S_BIHEAD_EDR>-MANDT = 1.
<FICA_INV_S_BIHEAD_EDR>-BILLDOCNO = 1.
<FICA_INV_S_BIHEAD_EDR>-REFDOCNO = 1.
<FICA_INV_S_BIHEAD_EDR>-LOG_SYSTEM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FICA_INV_S_BIHEAD_EDR-APPLK, sy-vline,
  WA_FICA_INV_S_BIHEAD_EDR-SRCPROCESS, sy-vline,
  WA_FICA_INV_S_BIHEAD_EDR-SRCDOCTYPE, sy-vline,
  WA_FICA_INV_S_BIHEAD_EDR-TECHDOCTYPE, sy-vline,
  WA_FICA_INV_S_BIHEAD_EDR-DOCTYPE, sy-vline,
  WA_FICA_INV_S_BIHEAD_EDR-GPART, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FICA_INV_S_BIHEAD_EDR 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_FICA_INV_S_BIHEAD_EDR 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_FICA_INV_S_BIHEAD_EDR INTO WA_FICA_INV_S_BIHEAD_EDR.


*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 LOG_SYSTEM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FICA_INV_S_BIHEAD_EDR-LOG_SYSTEM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FICA_INV_S_BIHEAD_EDR-LOG_SYSTEM.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit ALPHA, internal->external for field VKONT_INV
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FICA_INV_S_BIHEAD_EDR-VKONT_INV
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FICA_INV_S_BIHEAD_EDR-VKONT_INV.
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_FICA_INV_S_BIHEAD_EDR_STR, 
WA_BIHEAD_EDR TYPE STRING,
MANDT TYPE STRING,
BILLDOCNO TYPE STRING,
REFDOCNO TYPE STRING,
LOG_SYSTEM TYPE STRING,
APPLK TYPE STRING,
SRCPROCESS TYPE STRING,
SRCDOCTYPE TYPE STRING,
TECHDOCTYPE TYPE STRING,
DOCTYPE TYPE STRING,
GPART TYPE STRING,
VKONT TYPE STRING,
MDCAT TYPE STRING,
GPART_INV TYPE STRING,
VKONT_INV TYPE STRING,
DATE_FROM TYPE STRING,
DATE_TO TYPE STRING,
BILL_BASEDATE TYPE STRING,
SIMULATED TYPE STRING,
BILL_CURR TYPE STRING,
INV_CURR TYPE STRING,
TAX_DET_TYPE TYPE STRING,
TAX_DATE_TYPE TYPE STRING,
INV_CATEGORY TYPE STRING,
SEPARATE_INV TYPE STRING,
INVOICE_FIRST TYPE STRING,
REVREASON TYPE STRING,
REVERSALDOC TYPE STRING,
REVERSEDDOC TYPE STRING,
ADJUSTMENTDOC TYPE STRING,
ADJUSTEDDOC TYPE STRING,
TRIGDELETED TYPE STRING,
XINFBILL TYPE STRING,
INVLOCK TYPE STRING,
ADD_GROUP TYPE STRING,
XINVBILL_X TYPE STRING,
RECNUM TYPE STRING,
CRNAME TYPE STRING,
CRDATE TYPE STRING,
CRTIME TYPE STRING,
TARGPROCESS TYPE STRING,
BILLTYPE TYPE STRING,
BILLCYCLE TYPE STRING,
BILLGROUP TYPE STRING,
BILLTO TYPE STRING,
TASKTYPE TYPE STRING,
HOTBILLING TYPE STRING,
BILLPROCEDURE TYPE STRING,
BILL_PROCESS TYPE STRING,
BILL_TYPE TYPE STRING,
PREPAID_INCL TYPE STRING,
PPREFILL_INCL TYPE STRING,
PTSRL TYPE STRING,
ARCHIVED TYPE STRING,
NOT_SAVED TYPE STRING,
T_EDR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FICA_INV_S_BIHEAD_EDR_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_FICA_INV_S_BIHEAD_EDR_STR-WA_BIHEAD_EDR sy-vline 
WA_FICA_INV_S_BIHEAD_EDR_STR-MANDT sy-vline 
WA_FICA_INV_S_BIHEAD_EDR_STR-BILLDOCNO sy-vline 
WA_FICA_INV_S_BIHEAD_EDR_STR-REFDOCNO sy-vline 
WA_FICA_INV_S_BIHEAD_EDR_STR-LOG_SYSTEM sy-vline 
WA_FICA_INV_S_BIHEAD_EDR_STR-APPLK sy-vline 
WA_FICA_INV_S_BIHEAD_EDR_STR-SRCPROCESS sy-vline 
WA_FICA_INV_S_BIHEAD_EDR_STR-SRCDOCTYPE sy-vline 
WA_FICA_INV_S_BIHEAD_EDR_STR-TECHDOCTYPE sy-vline 
WA_FICA_INV_S_BIHEAD_EDR_STR-DOCTYPE sy-vline 
WA_FICA_INV_S_BIHEAD_EDR_STR-GPART sy-vline 
WA_FICA_INV_S_BIHEAD_EDR_STR-VKONT sy-vline 
WA_FICA_INV_S_BIHEAD_EDR_STR-MDCAT sy-vline 
WA_FICA_INV_S_BIHEAD_EDR_STR-GPART_INV sy-vline 
WA_FICA_INV_S_BIHEAD_EDR_STR-VKONT_INV sy-vline 
WA_FICA_INV_S_BIHEAD_EDR_STR-DATE_FROM sy-vline 
WA_FICA_INV_S_BIHEAD_EDR_STR-DATE_TO sy-vline 
WA_FICA_INV_S_BIHEAD_EDR_STR-BILL_BASEDATE sy-vline 
WA_FICA_INV_S_BIHEAD_EDR_STR-SIMULATED sy-vline 
WA_FICA_INV_S_BIHEAD_EDR_STR-BILL_CURR sy-vline 
WA_FICA_INV_S_BIHEAD_EDR_STR-INV_CURR sy-vline 
WA_FICA_INV_S_BIHEAD_EDR_STR-TAX_DET_TYPE sy-vline 
WA_FICA_INV_S_BIHEAD_EDR_STR-TAX_DATE_TYPE sy-vline 
WA_FICA_INV_S_BIHEAD_EDR_STR-INV_CATEGORY sy-vline 
WA_FICA_INV_S_BIHEAD_EDR_STR-SEPARATE_INV sy-vline 
WA_FICA_INV_S_BIHEAD_EDR_STR-INVOICE_FIRST sy-vline 
WA_FICA_INV_S_BIHEAD_EDR_STR-REVREASON sy-vline 
WA_FICA_INV_S_BIHEAD_EDR_STR-REVERSALDOC sy-vline 
WA_FICA_INV_S_BIHEAD_EDR_STR-REVERSEDDOC sy-vline 
WA_FICA_INV_S_BIHEAD_EDR_STR-ADJUSTMENTDOC sy-vline 
WA_FICA_INV_S_BIHEAD_EDR_STR-ADJUSTEDDOC sy-vline 
WA_FICA_INV_S_BIHEAD_EDR_STR-TRIGDELETED sy-vline 
WA_FICA_INV_S_BIHEAD_EDR_STR-XINFBILL sy-vline 
WA_FICA_INV_S_BIHEAD_EDR_STR-INVLOCK sy-vline 
WA_FICA_INV_S_BIHEAD_EDR_STR-ADD_GROUP sy-vline 
WA_FICA_INV_S_BIHEAD_EDR_STR-XINVBILL_X sy-vline 
WA_FICA_INV_S_BIHEAD_EDR_STR-RECNUM sy-vline 
WA_FICA_INV_S_BIHEAD_EDR_STR-CRNAME sy-vline 
WA_FICA_INV_S_BIHEAD_EDR_STR-CRDATE sy-vline 
WA_FICA_INV_S_BIHEAD_EDR_STR-CRTIME sy-vline 
WA_FICA_INV_S_BIHEAD_EDR_STR-TARGPROCESS sy-vline 
WA_FICA_INV_S_BIHEAD_EDR_STR-BILLTYPE sy-vline 
WA_FICA_INV_S_BIHEAD_EDR_STR-BILLCYCLE sy-vline 
WA_FICA_INV_S_BIHEAD_EDR_STR-BILLGROUP sy-vline 
WA_FICA_INV_S_BIHEAD_EDR_STR-BILLTO sy-vline 
WA_FICA_INV_S_BIHEAD_EDR_STR-TASKTYPE sy-vline 
WA_FICA_INV_S_BIHEAD_EDR_STR-HOTBILLING sy-vline 
WA_FICA_INV_S_BIHEAD_EDR_STR-BILLPROCEDURE sy-vline 
WA_FICA_INV_S_BIHEAD_EDR_STR-BILL_PROCESS sy-vline 
WA_FICA_INV_S_BIHEAD_EDR_STR-BILL_TYPE sy-vline 
WA_FICA_INV_S_BIHEAD_EDR_STR-PREPAID_INCL sy-vline 
WA_FICA_INV_S_BIHEAD_EDR_STR-PPREFILL_INCL sy-vline 
WA_FICA_INV_S_BIHEAD_EDR_STR-PTSRL sy-vline 
WA_FICA_INV_S_BIHEAD_EDR_STR-ARCHIVED sy-vline 
WA_FICA_INV_S_BIHEAD_EDR_STR-NOT_SAVED sy-vline 
WA_FICA_INV_S_BIHEAD_EDR_STR-T_EDR sy-vline      INTO ld_text SEPARATED BY SPACE.

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