ABAP Select data from SAP table EK08BZ into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP EK08BZ 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 EK08BZ. 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 EK08BZ 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_EK08BZ TYPE STANDARD TABLE OF EK08BZ,
      WA_EK08BZ TYPE EK08BZ,
      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: <EK08BZ> TYPE EK08BZ.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_EK08BZ.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM EK08BZ
  INTO TABLE IT_EK08BZ.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EK08BZ
*  INTO TABLE @DATA(IT_EK08BZ2).
*--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_EK08BZ INDEX 1 INTO DATA(WA_EK08BZ2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_EK08BZ ASSIGNING <EK08BZ>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EK08BZ>-FRBNR = 1.
<EK08BZ>-KMEIN = 1.
<EK08BZ>-KSCHL = 1.
<EK08BZ>-KVSL1 = 1.
<EK08BZ>-KVSL2 = 1.

ENDLOOP.

LOOP AT IT_EK08BZ INTO WA_EK08BZ.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EK08BZ-LIFNR, sy-vline,
  WA_EK08BZ-STUNR, sy-vline,
  WA_EK08BZ-XBPRM, sy-vline,
  WA_EK08BZ-ZAEHK, sy-vline,
  WA_EK08BZ-REBUZ, sy-vline,
  WA_EK08BZ-VNETW, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EK08BZ 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_EK08BZ 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_EK08BZ INTO WA_EK08BZ.


*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 CUNIT, internal->external for field KMEIN
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_EK08BZ-KMEIN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EK08BZ-KMEIN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LIFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_EK08BZ-LIFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EK08BZ-LIFNR.
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_EK08BZ_STR, 
FRBNR TYPE STRING,
KMEIN TYPE STRING,
KSCHL TYPE STRING,
KVSL1 TYPE STRING,
KVSL2 TYPE STRING,
LIFNR TYPE STRING,
STUNR TYPE STRING,
XBPRM TYPE STRING,
ZAEHK TYPE STRING,
REBUZ TYPE STRING,
VNETW TYPE STRING,
VMENG TYPE STRING,
BNKTK TYPE STRING,
XMACC TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EK08BZ_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_EK08BZ_STR-FRBNR sy-vline 
WA_EK08BZ_STR-KMEIN sy-vline 
WA_EK08BZ_STR-KSCHL sy-vline 
WA_EK08BZ_STR-KVSL1 sy-vline 
WA_EK08BZ_STR-KVSL2 sy-vline 
WA_EK08BZ_STR-LIFNR sy-vline 
WA_EK08BZ_STR-STUNR sy-vline 
WA_EK08BZ_STR-XBPRM sy-vline 
WA_EK08BZ_STR-ZAEHK sy-vline 
WA_EK08BZ_STR-REBUZ sy-vline 
WA_EK08BZ_STR-VNETW sy-vline 
WA_EK08BZ_STR-VMENG sy-vline 
WA_EK08BZ_STR-BNKTK sy-vline 
WA_EK08BZ_STR-XMACC sy-vline      INTO ld_text SEPARATED BY SPACE.

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