ABAP Select data from SAP table EKEHH into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EKEHH
*  INTO TABLE @DATA(IT_EKEHH2).
*--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_EKEHH INDEX 1 INTO DATA(WA_EKEHH2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EKEHH>-MANDT = 1.
<EKEHH>-EBELN = 1.
<EKEHH>-EBELP = 1.
<EKEHH>-ABART = 1.
<EKEHH>-ABRUF = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EKEHH-ETENR, sy-vline,
  WA_EKEHH-EINDT, sy-vline,
  WA_EKEHH-LPEIN, sy-vline,
  WA_EKEHH-UZEIT, sy-vline,
  WA_EKEHH-MENGE, sy-vline,
  WA_EKEHH-ETART, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EKEHH 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_EKEHH 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_EKEHH INTO WA_EKEHH.


*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 EBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_EKEHH-EBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EKEHH-EBELN.
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_EKEHH_STR, 
MANDT TYPE STRING,
EBELN TYPE STRING,
EBELP TYPE STRING,
ABART TYPE STRING,
ABRUF TYPE STRING,
ETENR TYPE STRING,
EINDT TYPE STRING,
LPEIN TYPE STRING,
UZEIT TYPE STRING,
MENGE TYPE STRING,
ETART TYPE STRING,
SERNR TYPE STRING,
ESTKZ TYPE STRING,
AMENG TYPE STRING,
WEMNG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EKEHH_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_EKEHH_STR-MANDT sy-vline 
WA_EKEHH_STR-EBELN sy-vline 
WA_EKEHH_STR-EBELP sy-vline 
WA_EKEHH_STR-ABART sy-vline 
WA_EKEHH_STR-ABRUF sy-vline 
WA_EKEHH_STR-ETENR sy-vline 
WA_EKEHH_STR-EINDT sy-vline 
WA_EKEHH_STR-LPEIN sy-vline 
WA_EKEHH_STR-UZEIT sy-vline 
WA_EKEHH_STR-MENGE sy-vline 
WA_EKEHH_STR-ETART sy-vline 
WA_EKEHH_STR-SERNR sy-vline 
WA_EKEHH_STR-ESTKZ sy-vline 
WA_EKEHH_STR-AMENG sy-vline 
WA_EKEHH_STR-WEMNG sy-vline      INTO ld_text SEPARATED BY SPACE.

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