ABAP Select data from SAP table UPKK4B into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP UPKK4B 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 UPKK4B. 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 UPKK4B 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_UPKK4B TYPE STANDARD TABLE OF UPKK4B,
      WA_UPKK4B TYPE UPKK4B,
      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: <UPKK4B> TYPE UPKK4B.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_UPKK4B.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM UPKK4B
  INTO TABLE IT_UPKK4B.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM UPKK4B
*  INTO TABLE @DATA(IT_UPKK4B2).
*--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_UPKK4B INDEX 1 INTO DATA(WA_UPKK4B2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_UPKK4B ASSIGNING <UPKK4B>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<UPKK4B>-SATZA = 1.
<UPKK4B>-TERID = 1.
<UPKK4B>-LDATE = 1.
<UPKK4B>-LTIME = 1.
<UPKK4B>-ERDAT = 1.

ENDLOOP.

LOOP AT IT_UPKK4B INTO WA_UPKK4B.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_UPKK4B-ERTIM, sy-vline,
  WA_UPKK4B-BUDAT, sy-vline,
  WA_UPKK4B-ARBPL, sy-vline,
  WA_UPKK4B-WERKS, sy-vline,
  WA_UPKK4B-ZAUSW, sy-vline,
  WA_UPKK4B-AUFNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_UPKK4B 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_UPKK4B 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_UPKK4B INTO WA_UPKK4B.


*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 AUFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_UPKK4B-AUFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_UPKK4B-AUFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit NUMCV, internal->external for field VORNR
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_UPKK4B-VORNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_UPKK4B-VORNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit NUMCV, internal->external for field UVORN
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_UPKK4B-UVORN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_UPKK4B-UVORN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field ISMNE
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_UPKK4B-ISMNE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_UPKK4B-ISMNE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field IDAUE
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_UPKK4B-IDAUE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_UPKK4B-IDAUE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field ODAUE
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_UPKK4B-ODAUE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_UPKK4B-ODAUE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field OFMNE
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_UPKK4B-OFMNE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_UPKK4B-OFMNE.
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_UPKK4B_STR, 
SATZA TYPE STRING,
TERID TYPE STRING,
LDATE TYPE STRING,
LTIME TYPE STRING,
ERDAT TYPE STRING,
ERTIM TYPE STRING,
BUDAT TYPE STRING,
ARBPL TYPE STRING,
WERKS TYPE STRING,
ZAUSW TYPE STRING,
AUFNR TYPE STRING,
VORNR TYPE STRING,
UVORN TYPE STRING,
SPLIT TYPE STRING,
KAPAR TYPE STRING,
GRUND TYPE STRING,
ABARB TYPE STRING,
PEDD TYPE STRING,
PEDZ TYPE STRING,
AUSOR TYPE STRING,
LEKNW TYPE STRING,
AUERU TYPE STRING,
LTXA1 TYPE STRING,
ISMNW TYPE STRING,
ISMNE TYPE STRING,
LEARR TYPE STRING,
IDAUR TYPE STRING,
IDAUE TYPE STRING,
ODAUR TYPE STRING,
ODAUE TYPE STRING,
OFMNW TYPE STRING,
OFMNE TYPE STRING,
ISDD TYPE STRING,
ISDZ TYPE STRING,
IEDD TYPE STRING,
IEDZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_UPKK4B_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_UPKK4B_STR-SATZA sy-vline 
WA_UPKK4B_STR-TERID sy-vline 
WA_UPKK4B_STR-LDATE sy-vline 
WA_UPKK4B_STR-LTIME sy-vline 
WA_UPKK4B_STR-ERDAT sy-vline 
WA_UPKK4B_STR-ERTIM sy-vline 
WA_UPKK4B_STR-BUDAT sy-vline 
WA_UPKK4B_STR-ARBPL sy-vline 
WA_UPKK4B_STR-WERKS sy-vline 
WA_UPKK4B_STR-ZAUSW sy-vline 
WA_UPKK4B_STR-AUFNR sy-vline 
WA_UPKK4B_STR-VORNR sy-vline 
WA_UPKK4B_STR-UVORN sy-vline 
WA_UPKK4B_STR-SPLIT sy-vline 
WA_UPKK4B_STR-KAPAR sy-vline 
WA_UPKK4B_STR-GRUND sy-vline 
WA_UPKK4B_STR-ABARB sy-vline 
WA_UPKK4B_STR-PEDD sy-vline 
WA_UPKK4B_STR-PEDZ sy-vline 
WA_UPKK4B_STR-AUSOR sy-vline 
WA_UPKK4B_STR-LEKNW sy-vline 
WA_UPKK4B_STR-AUERU sy-vline 
WA_UPKK4B_STR-LTXA1 sy-vline 
WA_UPKK4B_STR-ISMNW sy-vline 
WA_UPKK4B_STR-ISMNE sy-vline 
WA_UPKK4B_STR-LEARR sy-vline 
WA_UPKK4B_STR-IDAUR sy-vline 
WA_UPKK4B_STR-IDAUE sy-vline 
WA_UPKK4B_STR-ODAUR sy-vline 
WA_UPKK4B_STR-ODAUE sy-vline 
WA_UPKK4B_STR-OFMNW sy-vline 
WA_UPKK4B_STR-OFMNE sy-vline 
WA_UPKK4B_STR-ISDD sy-vline 
WA_UPKK4B_STR-ISDZ sy-vline 
WA_UPKK4B_STR-IEDD sy-vline 
WA_UPKK4B_STR-IEDZ sy-vline      INTO ld_text SEPARATED BY SPACE.

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