ABAP Select data from SAP table E3FIHDR into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP E3FIHDR 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 E3FIHDR. 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 E3FIHDR 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_E3FIHDR TYPE STANDARD TABLE OF E3FIHDR,
      WA_E3FIHDR TYPE E3FIHDR,
      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: <E3FIHDR> TYPE E3FIHDR.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_E3FIHDR.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM E3FIHDR
  INTO TABLE IT_E3FIHDR.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM E3FIHDR
*  INTO TABLE @DATA(IT_E3FIHDR2).
*--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_E3FIHDR INDEX 1 INTO DATA(WA_E3FIHDR2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_E3FIHDR ASSIGNING <E3FIHDR>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<E3FIHDR>-BUKRS = 1.
<E3FIHDR>-BELNR = 1.
<E3FIHDR>-GJAHR = 1.
<E3FIHDR>-BLART = 1.
<E3FIHDR>-BLDAT = 1.

ENDLOOP.

LOOP AT IT_E3FIHDR INTO WA_E3FIHDR.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_E3FIHDR-BUDAT, sy-vline,
  WA_E3FIHDR-MONAT, sy-vline,
  WA_E3FIHDR-WWERT, sy-vline,
  WA_E3FIHDR-XBLNR, sy-vline,
  WA_E3FIHDR-BKTXT, sy-vline,
  WA_E3FIHDR-WAERS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_E3FIHDR 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_E3FIHDR 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_E3FIHDR INTO WA_E3FIHDR.


*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 BELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_E3FIHDR-BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3FIHDR-BELNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_E3FIHDR-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3FIHDR-GJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXCRT, internal->external for field KURSF
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_E3FIHDR-KURSF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3FIHDR-KURSF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXCRT, internal->external for field KURS2
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_E3FIHDR-KURS2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3FIHDR-KURS2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXCRT, internal->external for field KURS3
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_E3FIHDR-KURS3
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3FIHDR-KURS3.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AWSYS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_E3FIHDR-AWSYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3FIHDR-AWSYS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AWREF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_E3FIHDR-AWREF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3FIHDR-AWREF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXCRT, internal->external for field KURSF_M
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_E3FIHDR-KURSF_M
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3FIHDR-KURSF_M.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXCRT, internal->external for field KURS2_M
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_E3FIHDR-KURS2_M
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3FIHDR-KURS2_M.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXCRT, internal->external for field KURS3_M
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_E3FIHDR-KURS3_M
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3FIHDR-KURS3_M.
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_E3FIHDR_STR, 
BUKRS TYPE STRING,
BELNR TYPE STRING,
GJAHR TYPE STRING,
BLART TYPE STRING,
BLDAT TYPE STRING,
BUDAT TYPE STRING,
MONAT TYPE STRING,
WWERT TYPE STRING,
XBLNR TYPE STRING,
BKTXT TYPE STRING,
WAERS TYPE STRING,
KURSF TYPE STRING,
KURS2 TYPE STRING,
KURS3 TYPE STRING,
AWSYS TYPE STRING,
AWTYP TYPE STRING,
AWREF TYPE STRING,
AWORG TYPE STRING,
HWAER TYPE STRING,
HWAE2 TYPE STRING,
HWAE3 TYPE STRING,
BASW2 TYPE STRING,
BASW3 TYPE STRING,
CURT2 TYPE STRING,
CURT3 TYPE STRING,
BUKRS_SND TYPE STRING,
GLVOR TYPE STRING,
USNAM TYPE STRING,
KURSF_M TYPE STRING,
KURS2_M TYPE STRING,
KURS3_M TYPE STRING,
BSTAT TYPE STRING,
BRNCH TYPE STRING,
NUMPG TYPE STRING,
ADISC TYPE STRING,END OF T_EKKO_STR.
DATA: WA_E3FIHDR_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_E3FIHDR_STR-BUKRS sy-vline 
WA_E3FIHDR_STR-BELNR sy-vline 
WA_E3FIHDR_STR-GJAHR sy-vline 
WA_E3FIHDR_STR-BLART sy-vline 
WA_E3FIHDR_STR-BLDAT sy-vline 
WA_E3FIHDR_STR-BUDAT sy-vline 
WA_E3FIHDR_STR-MONAT sy-vline 
WA_E3FIHDR_STR-WWERT sy-vline 
WA_E3FIHDR_STR-XBLNR sy-vline 
WA_E3FIHDR_STR-BKTXT sy-vline 
WA_E3FIHDR_STR-WAERS sy-vline 
WA_E3FIHDR_STR-KURSF sy-vline 
WA_E3FIHDR_STR-KURS2 sy-vline 
WA_E3FIHDR_STR-KURS3 sy-vline 
WA_E3FIHDR_STR-AWSYS sy-vline 
WA_E3FIHDR_STR-AWTYP sy-vline 
WA_E3FIHDR_STR-AWREF sy-vline 
WA_E3FIHDR_STR-AWORG sy-vline 
WA_E3FIHDR_STR-HWAER sy-vline 
WA_E3FIHDR_STR-HWAE2 sy-vline 
WA_E3FIHDR_STR-HWAE3 sy-vline 
WA_E3FIHDR_STR-BASW2 sy-vline 
WA_E3FIHDR_STR-BASW3 sy-vline 
WA_E3FIHDR_STR-CURT2 sy-vline 
WA_E3FIHDR_STR-CURT3 sy-vline 
WA_E3FIHDR_STR-BUKRS_SND sy-vline 
WA_E3FIHDR_STR-GLVOR sy-vline 
WA_E3FIHDR_STR-USNAM sy-vline 
WA_E3FIHDR_STR-KURSF_M sy-vline 
WA_E3FIHDR_STR-KURS2_M sy-vline 
WA_E3FIHDR_STR-KURS3_M sy-vline 
WA_E3FIHDR_STR-BSTAT sy-vline 
WA_E3FIHDR_STR-BRNCH sy-vline 
WA_E3FIHDR_STR-NUMPG sy-vline 
WA_E3FIHDR_STR-ADISC sy-vline      INTO ld_text SEPARATED BY SPACE.

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