ABAP Select data from SAP table EKESDATA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EKESDATA
*  INTO TABLE @DATA(IT_EKESDATA2).
*--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_EKESDATA INDEX 1 INTO DATA(WA_EKESDATA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EKESDATA>-EBTYP = 1.
<EKESDATA>-EINDT = 1.
<EKESDATA>-LPEIN = 1.
<EKESDATA>-UZEIT = 1.
<EKESDATA>-ERDAT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EKESDATA-EZEIT, sy-vline,
  WA_EKESDATA-MENGE, sy-vline,
  WA_EKESDATA-DABMG, sy-vline,
  WA_EKESDATA-ESTKZ, sy-vline,
  WA_EKESDATA-LOEKZ, sy-vline,
  WA_EKESDATA-KZDIS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EKESDATA 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_EKESDATA 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_EKESDATA INTO WA_EKESDATA.


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

*Conversion exit MATN1, internal->external for field EMATN
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_EKESDATA-EMATN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EKESDATA-EMATN.
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_EKESDATA_STR, 
EBTYP TYPE STRING,
EINDT TYPE STRING,
LPEIN TYPE STRING,
UZEIT TYPE STRING,
ERDAT TYPE STRING,
EZEIT TYPE STRING,
MENGE TYPE STRING,
DABMG TYPE STRING,
ESTKZ TYPE STRING,
LOEKZ TYPE STRING,
KZDIS TYPE STRING,
XBLNR TYPE STRING,
VBELN TYPE STRING,
VBELP TYPE STRING,
MPROF TYPE STRING,
EMATN TYPE STRING,
MAHNZ TYPE STRING,
CHARG TYPE STRING,
UECHA TYPE STRING,
REF_ETENS TYPE STRING,
IMWRK TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EKESDATA_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_EKESDATA_STR-EBTYP sy-vline 
WA_EKESDATA_STR-EINDT sy-vline 
WA_EKESDATA_STR-LPEIN sy-vline 
WA_EKESDATA_STR-UZEIT sy-vline 
WA_EKESDATA_STR-ERDAT sy-vline 
WA_EKESDATA_STR-EZEIT sy-vline 
WA_EKESDATA_STR-MENGE sy-vline 
WA_EKESDATA_STR-DABMG sy-vline 
WA_EKESDATA_STR-ESTKZ sy-vline 
WA_EKESDATA_STR-LOEKZ sy-vline 
WA_EKESDATA_STR-KZDIS sy-vline 
WA_EKESDATA_STR-XBLNR sy-vline 
WA_EKESDATA_STR-VBELN sy-vline 
WA_EKESDATA_STR-VBELP sy-vline 
WA_EKESDATA_STR-MPROF sy-vline 
WA_EKESDATA_STR-EMATN sy-vline 
WA_EKESDATA_STR-MAHNZ sy-vline 
WA_EKESDATA_STR-CHARG sy-vline 
WA_EKESDATA_STR-UECHA sy-vline 
WA_EKESDATA_STR-REF_ETENS sy-vline 
WA_EKESDATA_STR-IMWRK sy-vline      INTO ld_text SEPARATED BY SPACE.

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