ABAP Select data from SAP table EEIN into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EEIN
*  INTO TABLE @DATA(IT_EEIN2).
*--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_EEIN INDEX 1 INTO DATA(WA_EEIN2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EEIN>-MANDT = 1.
<EEIN>-EINZBELEG = 1.
<EEIN>-VKONT = 1.
<EEIN>-KUNDE = 1.
<EEIN>-BEZUGSDAT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EEIN-SSWTCREASON, sy-vline,
  WA_EEIN-DEBWECHS, sy-vline,
  WA_EEIN-TRANSVKONT, sy-vline,
  WA_EEIN-PREVIOUS_ADDR, sy-vline,
  WA_EEIN-STORNOKZ, sy-vline,
  WA_EEIN-STORGPART, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EEIN 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_EEIN 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_EEIN INTO WA_EEIN.


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

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

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

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

*Conversion exit ALPHA, internal->external for field PREVIOUS_ADDR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_EEIN-PREVIOUS_ADDR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EEIN-PREVIOUS_ADDR.
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_EEIN_STR, 
MANDT TYPE STRING,
EINZBELEG TYPE STRING,
VKONT TYPE STRING,
KUNDE TYPE STRING,
BEZUGSDAT TYPE STRING,
SSWTCREASON TYPE STRING,
DEBWECHS TYPE STRING,
TRANSVKONT TYPE STRING,
PREVIOUS_ADDR TYPE STRING,
STORNOKZ TYPE STRING,
STORGPART TYPE STRING,
STORKTO TYPE STRING,
UEBADR TYPE STRING,
RMVPOBOX TYPE STRING,
ADDADR TYPE STRING,
JDCADR TYPE STRING,
AUTSICHWARN TYPE STRING,
KEINPROTOSICH TYPE STRING,
LOGSAVE TYPE STRING,
BPC_CCLASS TYPE STRING,
BPC_ACTIVITY TYPE STRING,
GPVKCHDATE TYPE STRING,
CHGID_A TYPE STRING,
ECMICHARGEPOST TYPE STRING,
ITEMSTRANS TYPE STRING,
GPVKREVERSE TYPE STRING,
XMHNU TYPE STRING,
ANZBEGR TYPE STRING,
FORMBEGR TYPE STRING,
AUTBEGR TYPE STRING,
AUSWBEGR TYPE STRING,
DELAYED_PRINT TYPE STRING,
FORMTYPEPA TYPE STRING,
ERDAT TYPE STRING,
ERNAM TYPE STRING,
AEDAT TYPE STRING,
AENAM TYPE STRING,
BEGRU TYPE STRING,
LOEVM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EEIN_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_EEIN_STR-MANDT sy-vline 
WA_EEIN_STR-EINZBELEG sy-vline 
WA_EEIN_STR-VKONT sy-vline 
WA_EEIN_STR-KUNDE sy-vline 
WA_EEIN_STR-BEZUGSDAT sy-vline 
WA_EEIN_STR-SSWTCREASON sy-vline 
WA_EEIN_STR-DEBWECHS sy-vline 
WA_EEIN_STR-TRANSVKONT sy-vline 
WA_EEIN_STR-PREVIOUS_ADDR sy-vline 
WA_EEIN_STR-STORNOKZ sy-vline 
WA_EEIN_STR-STORGPART sy-vline 
WA_EEIN_STR-STORKTO sy-vline 
WA_EEIN_STR-UEBADR sy-vline 
WA_EEIN_STR-RMVPOBOX sy-vline 
WA_EEIN_STR-ADDADR sy-vline 
WA_EEIN_STR-JDCADR sy-vline 
WA_EEIN_STR-AUTSICHWARN sy-vline 
WA_EEIN_STR-KEINPROTOSICH sy-vline 
WA_EEIN_STR-LOGSAVE sy-vline 
WA_EEIN_STR-BPC_CCLASS sy-vline 
WA_EEIN_STR-BPC_ACTIVITY sy-vline 
WA_EEIN_STR-GPVKCHDATE sy-vline 
WA_EEIN_STR-CHGID_A sy-vline 
WA_EEIN_STR-ECMICHARGEPOST sy-vline 
WA_EEIN_STR-ITEMSTRANS sy-vline 
WA_EEIN_STR-GPVKREVERSE sy-vline 
WA_EEIN_STR-XMHNU sy-vline 
WA_EEIN_STR-ANZBEGR sy-vline 
WA_EEIN_STR-FORMBEGR sy-vline 
WA_EEIN_STR-AUTBEGR sy-vline 
WA_EEIN_STR-AUSWBEGR sy-vline 
WA_EEIN_STR-DELAYED_PRINT sy-vline 
WA_EEIN_STR-FORMTYPEPA sy-vline 
WA_EEIN_STR-ERDAT sy-vline 
WA_EEIN_STR-ERNAM sy-vline 
WA_EEIN_STR-AEDAT sy-vline 
WA_EEIN_STR-AENAM sy-vline 
WA_EEIN_STR-BEGRU sy-vline 
WA_EEIN_STR-LOEVM sy-vline      INTO ld_text SEPARATED BY SPACE.

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