ABAP Select data from SAP table UEKPV into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM UEKPV
*  INTO TABLE @DATA(IT_UEKPV2).
*--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_UEKPV INDEX 1 INTO DATA(WA_UEKPV2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<UEKPV>-MANDT = 1.
<UEKPV>-EBELN = 1.
<UEKPV>-EBELP = 1.
<UEKPV>-VSTEL = 1.
<UEKPV>-LPRIO = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_UEKPV-ROUTE, sy-vline,
  WA_UEKPV-KUNNR, sy-vline,
  WA_UEKPV-KUNAG, sy-vline,
  WA_UEKPV-SPDNR, sy-vline,
  WA_UEKPV-VKORG, sy-vline,
  WA_UEKPV-VTWEG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_UEKPV 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_UEKPV 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_UEKPV INTO WA_UEKPV.


*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_UEKPV-EBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_UEKPV-EBELN.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field SPE_EXT_ID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_UEKPV-SPE_EXT_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_UEKPV-SPE_EXT_ID.
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_UEKPV_STR, 
MANDT TYPE STRING,
EBELN TYPE STRING,
EBELP TYPE STRING,
VSTEL TYPE STRING,
LPRIO TYPE STRING,
ROUTE TYPE STRING,
KUNNR TYPE STRING,
KUNAG TYPE STRING,
SPDNR TYPE STRING,
VKORG TYPE STRING,
VTWEG TYPE STRING,
SPART TYPE STRING,
LEDAT TYPE STRING,
PLIFZ TYPE STRING,
SPRAS TYPE STRING,
VSBED TYPE STRING,
LADGR TYPE STRING,
TRAGR TYPE STRING,
ABLAD TYPE STRING,
KZAZU TYPE STRING,
TZONIS TYPE STRING,
SPE_AUTH_NUMBER TYPE STRING,
SPE_SRC_DLV_NO TYPE STRING,
SPE_SRC_EXIDV TYPE STRING,
SPE_INSPOUT_GUID TYPE STRING,
SPE_FOLLOW_UP TYPE STRING,
SPE_EXT_ID TYPE STRING,
SPE_EXT_ID_ITEM TYPE STRING,
VSART TYPE STRING,
_DATAAGING TYPE STRING,
FSH_VAS_CG TYPE STRING,
KZ TYPE STRING,
LEDATA TYPE STRING,END OF T_EKKO_STR.
DATA: WA_UEKPV_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_UEKPV_STR-MANDT sy-vline 
WA_UEKPV_STR-EBELN sy-vline 
WA_UEKPV_STR-EBELP sy-vline 
WA_UEKPV_STR-VSTEL sy-vline 
WA_UEKPV_STR-LPRIO sy-vline 
WA_UEKPV_STR-ROUTE sy-vline 
WA_UEKPV_STR-KUNNR sy-vline 
WA_UEKPV_STR-KUNAG sy-vline 
WA_UEKPV_STR-SPDNR sy-vline 
WA_UEKPV_STR-VKORG sy-vline 
WA_UEKPV_STR-VTWEG sy-vline 
WA_UEKPV_STR-SPART sy-vline 
WA_UEKPV_STR-LEDAT sy-vline 
WA_UEKPV_STR-PLIFZ sy-vline 
WA_UEKPV_STR-SPRAS sy-vline 
WA_UEKPV_STR-VSBED sy-vline 
WA_UEKPV_STR-LADGR sy-vline 
WA_UEKPV_STR-TRAGR sy-vline 
WA_UEKPV_STR-ABLAD sy-vline 
WA_UEKPV_STR-KZAZU sy-vline 
WA_UEKPV_STR-TZONIS sy-vline 
WA_UEKPV_STR-SPE_AUTH_NUMBER sy-vline 
WA_UEKPV_STR-SPE_SRC_DLV_NO sy-vline 
WA_UEKPV_STR-SPE_SRC_EXIDV sy-vline 
WA_UEKPV_STR-SPE_INSPOUT_GUID sy-vline 
WA_UEKPV_STR-SPE_FOLLOW_UP sy-vline 
WA_UEKPV_STR-SPE_EXT_ID sy-vline 
WA_UEKPV_STR-SPE_EXT_ID_ITEM sy-vline 
WA_UEKPV_STR-VSART sy-vline 
WA_UEKPV_STR-_DATAAGING sy-vline 
WA_UEKPV_STR-FSH_VAS_CG sy-vline 
WA_UEKPV_STR-KZ sy-vline 
WA_UEKPV_STR-LEDATA sy-vline      INTO ld_text SEPARATED BY SPACE.

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