ABAP Select data from SAP table E1BP_FMCA_EXTDOC_I into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP E1BP_FMCA_EXTDOC_I 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 E1BP_FMCA_EXTDOC_I. 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 E1BP_FMCA_EXTDOC_I 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_E1BP_FMCA_EXTDOC_I TYPE STANDARD TABLE OF E1BP_FMCA_EXTDOC_I,
      WA_E1BP_FMCA_EXTDOC_I TYPE E1BP_FMCA_EXTDOC_I,
      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: <E1BP_FMCA_EXTDOC_I> TYPE E1BP_FMCA_EXTDOC_I.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_E1BP_FMCA_EXTDOC_I.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM E1BP_FMCA_EXTDOC_I
  INTO TABLE IT_E1BP_FMCA_EXTDOC_I.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM E1BP_FMCA_EXTDOC_I
*  INTO TABLE @DATA(IT_E1BP_FMCA_EXTDOC_I2).
*--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_E1BP_FMCA_EXTDOC_I INDEX 1 INTO DATA(WA_E1BP_FMCA_EXTDOC_I2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_E1BP_FMCA_EXTDOC_I ASSIGNING <E1BP_FMCA_EXTDOC_I>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<E1BP_FMCA_EXTDOC_I>-REFDOCNO = 1.
<E1BP_FMCA_EXTDOC_I>-LOG_SYSTEM = 1.
<E1BP_FMCA_EXTDOC_I>-REFITEM = 1.
<E1BP_FMCA_EXTDOC_I>-AMOUNT = 1.
<E1BP_FMCA_EXTDOC_I>-CURRENCY = 1.

ENDLOOP.

LOOP AT IT_E1BP_FMCA_EXTDOC_I INTO WA_E1BP_FMCA_EXTDOC_I.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_E1BP_FMCA_EXTDOC_I-ISO_CODE, sy-vline,
  WA_E1BP_FMCA_EXTDOC_I-ITEM_SIMULATED, sy-vline,
  WA_E1BP_FMCA_EXTDOC_I-POSTREL, sy-vline,
  WA_E1BP_FMCA_EXTDOC_I-PRINTREL, sy-vline,
  WA_E1BP_FMCA_EXTDOC_I-PRINT_SUBSTITUTE, sy-vline,
  WA_E1BP_FMCA_EXTDOC_I-DATE_FROM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_E1BP_FMCA_EXTDOC_I 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_E1BP_FMCA_EXTDOC_I 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_E1BP_FMCA_EXTDOC_I INTO WA_E1BP_FMCA_EXTDOC_I.


*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_E1BP_FMCA_EXTDOC_I_STR, 
REFDOCNO TYPE STRING,
LOG_SYSTEM TYPE STRING,
REFITEM TYPE STRING,
AMOUNT TYPE STRING,
CURRENCY TYPE STRING,
ISO_CODE TYPE STRING,
ITEM_SIMULATED TYPE STRING,
POSTREL TYPE STRING,
PRINTREL TYPE STRING,
PRINT_SUBSTITUTE TYPE STRING,
DATE_FROM TYPE STRING,
DATE_TO TYPE STRING,
DUE_DATE TYPE STRING,
QUANTITY TYPE STRING,
BASE_UOM TYPE STRING,
ISOCODE_UNIT TYPE STRING,
QTY_BW_REL TYPE STRING,
QTY_FI_CO_REL TYPE STRING,
TAX_DATE TYPE STRING,
TAX_GROUP TYPE STRING,
TAX_ID TYPE STRING,
TAXJURCODE TYPE STRING,
CONTRACT TYPE STRING,
MAIN_TRANS TYPE STRING,
SUB_TRANS TYPE STRING,
ACTDETERID TYPE STRING,
PA2640_POS_ID1 TYPE STRING,
PA2640_POS_ID2 TYPE STRING,
PA2640_POS_ID3 TYPE STRING,
PA2640_POS_ID4 TYPE STRING,
PA2640_POS_ID5 TYPE STRING,
PA2640_POS_ID6 TYPE STRING,
PA2640_POS_ID7 TYPE STRING,
ADD_GROUP TYPE STRING,
ITEM_GUID TYPE STRING,
ITEM_OBJTYPE TYPE STRING,
ITEM_ID TYPE STRING,
PAYMENT_TYPE TYPE STRING,
EXPENSE_TYPE TYPE STRING,
BRI_GUID TYPE STRING,
REL_ITEM_GUID TYPE STRING,
REL_ITEM_ID TYPE STRING,
BUSPARTNER_NEW TYPE STRING,
CONT_ACCT_NEW TYPE STRING,
CONTRACT_NEW TYPE STRING,
PMNT_METH TYPE STRING,
BK_DETAILS TYPE STRING,
EMGPA TYPE STRING,
EMADR TYPE STRING,
EMADREXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_E1BP_FMCA_EXTDOC_I_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_E1BP_FMCA_EXTDOC_I_STR-REFDOCNO sy-vline 
WA_E1BP_FMCA_EXTDOC_I_STR-LOG_SYSTEM sy-vline 
WA_E1BP_FMCA_EXTDOC_I_STR-REFITEM sy-vline 
WA_E1BP_FMCA_EXTDOC_I_STR-AMOUNT sy-vline 
WA_E1BP_FMCA_EXTDOC_I_STR-CURRENCY sy-vline 
WA_E1BP_FMCA_EXTDOC_I_STR-ISO_CODE sy-vline 
WA_E1BP_FMCA_EXTDOC_I_STR-ITEM_SIMULATED sy-vline 
WA_E1BP_FMCA_EXTDOC_I_STR-POSTREL sy-vline 
WA_E1BP_FMCA_EXTDOC_I_STR-PRINTREL sy-vline 
WA_E1BP_FMCA_EXTDOC_I_STR-PRINT_SUBSTITUTE sy-vline 
WA_E1BP_FMCA_EXTDOC_I_STR-DATE_FROM sy-vline 
WA_E1BP_FMCA_EXTDOC_I_STR-DATE_TO sy-vline 
WA_E1BP_FMCA_EXTDOC_I_STR-DUE_DATE sy-vline 
WA_E1BP_FMCA_EXTDOC_I_STR-QUANTITY sy-vline 
WA_E1BP_FMCA_EXTDOC_I_STR-BASE_UOM sy-vline 
WA_E1BP_FMCA_EXTDOC_I_STR-ISOCODE_UNIT sy-vline 
WA_E1BP_FMCA_EXTDOC_I_STR-QTY_BW_REL sy-vline 
WA_E1BP_FMCA_EXTDOC_I_STR-QTY_FI_CO_REL sy-vline 
WA_E1BP_FMCA_EXTDOC_I_STR-TAX_DATE sy-vline 
WA_E1BP_FMCA_EXTDOC_I_STR-TAX_GROUP sy-vline 
WA_E1BP_FMCA_EXTDOC_I_STR-TAX_ID sy-vline 
WA_E1BP_FMCA_EXTDOC_I_STR-TAXJURCODE sy-vline 
WA_E1BP_FMCA_EXTDOC_I_STR-CONTRACT sy-vline 
WA_E1BP_FMCA_EXTDOC_I_STR-MAIN_TRANS sy-vline 
WA_E1BP_FMCA_EXTDOC_I_STR-SUB_TRANS sy-vline 
WA_E1BP_FMCA_EXTDOC_I_STR-ACTDETERID sy-vline 
WA_E1BP_FMCA_EXTDOC_I_STR-PA2640_POS_ID1 sy-vline 
WA_E1BP_FMCA_EXTDOC_I_STR-PA2640_POS_ID2 sy-vline 
WA_E1BP_FMCA_EXTDOC_I_STR-PA2640_POS_ID3 sy-vline 
WA_E1BP_FMCA_EXTDOC_I_STR-PA2640_POS_ID4 sy-vline 
WA_E1BP_FMCA_EXTDOC_I_STR-PA2640_POS_ID5 sy-vline 
WA_E1BP_FMCA_EXTDOC_I_STR-PA2640_POS_ID6 sy-vline 
WA_E1BP_FMCA_EXTDOC_I_STR-PA2640_POS_ID7 sy-vline 
WA_E1BP_FMCA_EXTDOC_I_STR-ADD_GROUP sy-vline 
WA_E1BP_FMCA_EXTDOC_I_STR-ITEM_GUID sy-vline 
WA_E1BP_FMCA_EXTDOC_I_STR-ITEM_OBJTYPE sy-vline 
WA_E1BP_FMCA_EXTDOC_I_STR-ITEM_ID sy-vline 
WA_E1BP_FMCA_EXTDOC_I_STR-PAYMENT_TYPE sy-vline 
WA_E1BP_FMCA_EXTDOC_I_STR-EXPENSE_TYPE sy-vline 
WA_E1BP_FMCA_EXTDOC_I_STR-BRI_GUID sy-vline 
WA_E1BP_FMCA_EXTDOC_I_STR-REL_ITEM_GUID sy-vline 
WA_E1BP_FMCA_EXTDOC_I_STR-REL_ITEM_ID sy-vline 
WA_E1BP_FMCA_EXTDOC_I_STR-BUSPARTNER_NEW sy-vline 
WA_E1BP_FMCA_EXTDOC_I_STR-CONT_ACCT_NEW sy-vline 
WA_E1BP_FMCA_EXTDOC_I_STR-CONTRACT_NEW sy-vline 
WA_E1BP_FMCA_EXTDOC_I_STR-PMNT_METH sy-vline 
WA_E1BP_FMCA_EXTDOC_I_STR-BK_DETAILS sy-vline 
WA_E1BP_FMCA_EXTDOC_I_STR-EMGPA sy-vline 
WA_E1BP_FMCA_EXTDOC_I_STR-EMADR sy-vline 
WA_E1BP_FMCA_EXTDOC_I_STR-EMADREXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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