ABAP Select data from SAP table EKUN___I into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP EKUN___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 EKUN___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 EKUN___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_EKUN___I TYPE STANDARD TABLE OF EKUN___I,
      WA_EKUN___I TYPE EKUN___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: <EKUN___I> TYPE EKUN___I.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EKUN___I
*  INTO TABLE @DATA(IT_EKUN___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_EKUN___I INDEX 1 INTO DATA(WA_EKUN___I2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EKUN___I>-CLIENT = 1.
<EKUN___I>-PARTNER = 1.
<EKUN___I>-TYPE = 1.
<EKUN___I>-BPKIND = 1.
<EKUN___I>-BU_GROUP = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EKUN___I-BPEXT, sy-vline,
  WA_EKUN___I-BU_SORT1, sy-vline,
  WA_EKUN___I-BU_SORT2, sy-vline,
  WA_EKUN___I-SOURCE, sy-vline,
  WA_EKUN___I-TITLE, sy-vline,
  WA_EKUN___I-XDELE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EKUN___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_EKUN___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_EKUN___I INTO WA_EKUN___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.

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

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

*Conversion exit ISOLA, internal->external for field LANGU_CORR
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_EKUN___I-LANGU_CORR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EKUN___I-LANGU_CORR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ISOLA, internal->external for field BU_LANGU
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_EKUN___I-BU_LANGU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EKUN___I-BU_LANGU.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ADDRCOMM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_EKUN___I-ADDRCOMM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EKUN___I-ADDRCOMM.
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_EKUN___I_STR, 
CLIENT TYPE STRING,
PARTNER TYPE STRING,
TYPE TYPE STRING,
BPKIND TYPE STRING,
BU_GROUP TYPE STRING,
BPEXT TYPE STRING,
BU_SORT1 TYPE STRING,
BU_SORT2 TYPE STRING,
SOURCE TYPE STRING,
TITLE TYPE STRING,
XDELE TYPE STRING,
XBLCK TYPE STRING,
AUGRP TYPE STRING,
TITLE_LET TYPE STRING,
BU_LOGSYS TYPE STRING,
CONTACT TYPE STRING,
NOT_RELEASED TYPE STRING,
NOT_LG_COMPETENT TYPE STRING,
PRINT_MODE TYPE STRING,
BP_EEW_DUMMY TYPE STRING,
RATE TYPE STRING,
NAME_ORG1 TYPE STRING,
NAME_ORG2 TYPE STRING,
NAME_ORG3 TYPE STRING,
NAME_ORG4 TYPE STRING,
LEGAL_ENTY TYPE STRING,
IND_SECTOR TYPE STRING,
LEGAL_ORG TYPE STRING,
FOUND_DAT TYPE STRING,
LIQUID_DAT TYPE STRING,
LOCATION_1 TYPE STRING,
LOCATION_2 TYPE STRING,
LOCATION_3 TYPE STRING,
NAME_LAST TYPE STRING,
NAME_FIRST TYPE STRING,
NAME_LST2 TYPE STRING,
NAME_LAST2 TYPE STRING,
NAMEMIDDLE TYPE STRING,
TITLE_ACA1 TYPE STRING,
TITLE_ACA2 TYPE STRING,
TITLE_ROYL TYPE STRING,
PREFIX1 TYPE STRING,
PREFIX2 TYPE STRING,
NAME1_TEXT TYPE STRING,
NICKNAME TYPE STRING,
INITIALS TYPE STRING,
NAMEFORMAT TYPE STRING,
NAMCOUNTRY TYPE STRING,
LANGU_CORR TYPE STRING,
XSEXM TYPE STRING,
XSEXF TYPE STRING,
BIRTHPL TYPE STRING,
MARST TYPE STRING,
EMPLO TYPE STRING,
JOBGR TYPE STRING,
NATIO TYPE STRING,
CNTAX TYPE STRING,
CNDSC TYPE STRING,
PERSNUMBER TYPE STRING,
XSEXU TYPE STRING,
XUBNAME TYPE STRING,
BU_LANGU TYPE STRING,
GENDER TYPE STRING,
BIRTHDT TYPE STRING,
DEATHDT TYPE STRING,
PERNO TYPE STRING,
CHILDREN TYPE STRING,
MEM_HOUSE TYPE STRING,
BIRTHDT_STATUS TYPE STRING,
PARTGRPTYP TYPE STRING,
NAME_GRP1 TYPE STRING,
NAME_GRP2 TYPE STRING,
MC_NAME1 TYPE STRING,
MC_NAME2 TYPE STRING,
CRUSR TYPE STRING,
CRDAT TYPE STRING,
CRTIM TYPE STRING,
CHUSR TYPE STRING,
CHDAT TYPE STRING,
CHTIM TYPE STRING,
PARTNER_GUID TYPE STRING,
ADDRCOMM TYPE STRING,
TD_SWITCH TYPE STRING,
IS_ORG_CENTRE TYPE STRING,
DB_KEY TYPE STRING,
VALID_FROM TYPE STRING,
VALID_TO TYPE STRING,
XPCPT TYPE STRING,
NATPERS TYPE STRING,
MILVE TYPE STRING,
NUC_SEC TYPE STRING,
PAR_REL TYPE STRING,
BP_SORT TYPE STRING,
KBANKS TYPE STRING,
KBANKL TYPE STRING,
AKTDB TYPE STRING,
AKTYP TYPE STRING,
XCHNG TYPE STRING,
NRRNG TYPE STRING,
XNREX TYPE STRING,
VALDT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EKUN___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_EKUN___I_STR-CLIENT sy-vline 
WA_EKUN___I_STR-PARTNER sy-vline 
WA_EKUN___I_STR-TYPE sy-vline 
WA_EKUN___I_STR-BPKIND sy-vline 
WA_EKUN___I_STR-BU_GROUP sy-vline 
WA_EKUN___I_STR-BPEXT sy-vline 
WA_EKUN___I_STR-BU_SORT1 sy-vline 
WA_EKUN___I_STR-BU_SORT2 sy-vline 
WA_EKUN___I_STR-SOURCE sy-vline 
WA_EKUN___I_STR-TITLE sy-vline 
WA_EKUN___I_STR-XDELE sy-vline 
WA_EKUN___I_STR-XBLCK sy-vline 
WA_EKUN___I_STR-AUGRP sy-vline 
WA_EKUN___I_STR-TITLE_LET sy-vline 
WA_EKUN___I_STR-BU_LOGSYS sy-vline 
WA_EKUN___I_STR-CONTACT sy-vline 
WA_EKUN___I_STR-NOT_RELEASED sy-vline 
WA_EKUN___I_STR-NOT_LG_COMPETENT sy-vline 
WA_EKUN___I_STR-PRINT_MODE sy-vline 
WA_EKUN___I_STR-BP_EEW_DUMMY sy-vline 
WA_EKUN___I_STR-RATE sy-vline 
WA_EKUN___I_STR-NAME_ORG1 sy-vline 
WA_EKUN___I_STR-NAME_ORG2 sy-vline 
WA_EKUN___I_STR-NAME_ORG3 sy-vline 
WA_EKUN___I_STR-NAME_ORG4 sy-vline 
WA_EKUN___I_STR-LEGAL_ENTY sy-vline 
WA_EKUN___I_STR-IND_SECTOR sy-vline 
WA_EKUN___I_STR-LEGAL_ORG sy-vline 
WA_EKUN___I_STR-FOUND_DAT sy-vline 
WA_EKUN___I_STR-LIQUID_DAT sy-vline 
WA_EKUN___I_STR-LOCATION_1 sy-vline 
WA_EKUN___I_STR-LOCATION_2 sy-vline 
WA_EKUN___I_STR-LOCATION_3 sy-vline 
WA_EKUN___I_STR-NAME_LAST sy-vline 
WA_EKUN___I_STR-NAME_FIRST sy-vline 
WA_EKUN___I_STR-NAME_LST2 sy-vline 
WA_EKUN___I_STR-NAME_LAST2 sy-vline 
WA_EKUN___I_STR-NAMEMIDDLE sy-vline 
WA_EKUN___I_STR-TITLE_ACA1 sy-vline 
WA_EKUN___I_STR-TITLE_ACA2 sy-vline 
WA_EKUN___I_STR-TITLE_ROYL sy-vline 
WA_EKUN___I_STR-PREFIX1 sy-vline 
WA_EKUN___I_STR-PREFIX2 sy-vline 
WA_EKUN___I_STR-NAME1_TEXT sy-vline 
WA_EKUN___I_STR-NICKNAME sy-vline 
WA_EKUN___I_STR-INITIALS sy-vline 
WA_EKUN___I_STR-NAMEFORMAT sy-vline 
WA_EKUN___I_STR-NAMCOUNTRY sy-vline 
WA_EKUN___I_STR-LANGU_CORR sy-vline 
WA_EKUN___I_STR-XSEXM sy-vline 
WA_EKUN___I_STR-XSEXF sy-vline 
WA_EKUN___I_STR-BIRTHPL sy-vline 
WA_EKUN___I_STR-MARST sy-vline 
WA_EKUN___I_STR-EMPLO sy-vline 
WA_EKUN___I_STR-JOBGR sy-vline 
WA_EKUN___I_STR-NATIO sy-vline 
WA_EKUN___I_STR-CNTAX sy-vline 
WA_EKUN___I_STR-CNDSC sy-vline 
WA_EKUN___I_STR-PERSNUMBER sy-vline 
WA_EKUN___I_STR-XSEXU sy-vline 
WA_EKUN___I_STR-XUBNAME sy-vline 
WA_EKUN___I_STR-BU_LANGU sy-vline 
WA_EKUN___I_STR-GENDER sy-vline 
WA_EKUN___I_STR-BIRTHDT sy-vline 
WA_EKUN___I_STR-DEATHDT sy-vline 
WA_EKUN___I_STR-PERNO sy-vline 
WA_EKUN___I_STR-CHILDREN sy-vline 
WA_EKUN___I_STR-MEM_HOUSE sy-vline 
WA_EKUN___I_STR-BIRTHDT_STATUS sy-vline 
WA_EKUN___I_STR-PARTGRPTYP sy-vline 
WA_EKUN___I_STR-NAME_GRP1 sy-vline 
WA_EKUN___I_STR-NAME_GRP2 sy-vline 
WA_EKUN___I_STR-MC_NAME1 sy-vline 
WA_EKUN___I_STR-MC_NAME2 sy-vline 
WA_EKUN___I_STR-CRUSR sy-vline 
WA_EKUN___I_STR-CRDAT sy-vline 
WA_EKUN___I_STR-CRTIM sy-vline 
WA_EKUN___I_STR-CHUSR sy-vline 
WA_EKUN___I_STR-CHDAT sy-vline 
WA_EKUN___I_STR-CHTIM sy-vline 
WA_EKUN___I_STR-PARTNER_GUID sy-vline 
WA_EKUN___I_STR-ADDRCOMM sy-vline 
WA_EKUN___I_STR-TD_SWITCH sy-vline 
WA_EKUN___I_STR-IS_ORG_CENTRE sy-vline 
WA_EKUN___I_STR-DB_KEY sy-vline 
WA_EKUN___I_STR-VALID_FROM sy-vline 
WA_EKUN___I_STR-VALID_TO sy-vline 
WA_EKUN___I_STR-XPCPT sy-vline 
WA_EKUN___I_STR-NATPERS sy-vline 
WA_EKUN___I_STR-MILVE sy-vline 
WA_EKUN___I_STR-NUC_SEC sy-vline 
WA_EKUN___I_STR-PAR_REL sy-vline 
WA_EKUN___I_STR-BP_SORT sy-vline 
WA_EKUN___I_STR-KBANKS sy-vline 
WA_EKUN___I_STR-KBANKL sy-vline 
WA_EKUN___I_STR-AKTDB sy-vline 
WA_EKUN___I_STR-AKTYP sy-vline 
WA_EKUN___I_STR-XCHNG sy-vline 
WA_EKUN___I_STR-NRRNG sy-vline 
WA_EKUN___I_STR-XNREX sy-vline 
WA_EKUN___I_STR-VALDT sy-vline      INTO ld_text SEPARATED BY SPACE.

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