ABAP Select data from SAP table KBLE into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP KBLE 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 KBLE. 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 KBLE 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_KBLE TYPE STANDARD TABLE OF KBLE,
      WA_KBLE TYPE KBLE,
      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: <KBLE> TYPE KBLE.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM KBLE
*  INTO TABLE @DATA(IT_KBLE2).
*--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_KBLE INDEX 1 INTO DATA(WA_KBLE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<KBLE>-MANDT = 1.
<KBLE>-BELNR = 1.
<KBLE>-BLPOS = 1.
<KBLE>-BPENT = 1.
<KBLE>-VRGNG = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_KBLE-ERFAS, sy-vline,
  WA_KBLE-ERDAT, sy-vline,
  WA_KBLE-AENDE, sy-vline,
  WA_KBLE-AEDAT, sy-vline,
  WA_KBLE-BLDAT, sy-vline,
  WA_KBLE-ATEXT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_KBLE 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_KBLE 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_KBLE INTO WA_KBLE.


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

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

*Conversion exit ABPSP, internal->external for field RPSPNR
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_KBLE-RPSPNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KBLE-RPSPNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field RGJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_KBLE-RGJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KBLE-RGJAHR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

*Conversion exit EXCRT, internal->external for field KURSU
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_KBLE-KURSU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KBLE-KURSU.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AWSYS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KBLE-AWSYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KBLE-AWSYS.
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_KBLE_STR, 
MANDT TYPE STRING,
BELNR TYPE STRING,
BLPOS TYPE STRING,
BPENT TYPE STRING,
VRGNG TYPE STRING,
ERFAS TYPE STRING,
ERDAT TYPE STRING,
AENDE TYPE STRING,
AEDAT TYPE STRING,
BLDAT TYPE STRING,
ATEXT TYPE STRING,
STATS TYPE STRING,
ERLKZ TYPE STRING,
WTABB TYPE STRING,
STOKZ TYPE STRING,
RAUFNR TYPE STRING,
RPSPNR TYPE STRING,
RBUKRS TYPE STRING,
RGJAHR TYPE STRING,
RBELNR TYPE STRING,
RBUZEI TYPE STRING,
REBELN TYPE STRING,
REBELP TYPE STRING,
RZEKKN TYPE STRING,
RETENR TYPE STRING,
RSTUNR TYPE STRING,
RZAEHK TYPE STRING,
RBANFN TYPE STRING,
RBNFPO TYPE STRING,
RZEBKN TYPE STRING,
RKBLNR TYPE STRING,
RKBLPOS TYPE STRING,
BLCKZ TYPE STRING,
AWTYP TYPE STRING,
AWREF TYPE STRING,
AWORG TYPE STRING,
RCOBELNR TYPE STRING,
RCOBUZEI TYPE STRING,
WTABBAPP TYPE STRING,
KURSU TYPE STRING,
DATU TYPE STRING,
AWSYS TYPE STRING,
AWPOS TYPE STRING,
BUDAT TYPE STRING,
FIKEY TYPE STRING,
PSOWO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_KBLE_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_KBLE_STR-MANDT sy-vline 
WA_KBLE_STR-BELNR sy-vline 
WA_KBLE_STR-BLPOS sy-vline 
WA_KBLE_STR-BPENT sy-vline 
WA_KBLE_STR-VRGNG sy-vline 
WA_KBLE_STR-ERFAS sy-vline 
WA_KBLE_STR-ERDAT sy-vline 
WA_KBLE_STR-AENDE sy-vline 
WA_KBLE_STR-AEDAT sy-vline 
WA_KBLE_STR-BLDAT sy-vline 
WA_KBLE_STR-ATEXT sy-vline 
WA_KBLE_STR-STATS sy-vline 
WA_KBLE_STR-ERLKZ sy-vline 
WA_KBLE_STR-WTABB sy-vline 
WA_KBLE_STR-STOKZ sy-vline 
WA_KBLE_STR-RAUFNR sy-vline 
WA_KBLE_STR-RPSPNR sy-vline 
WA_KBLE_STR-RBUKRS sy-vline 
WA_KBLE_STR-RGJAHR sy-vline 
WA_KBLE_STR-RBELNR sy-vline 
WA_KBLE_STR-RBUZEI sy-vline 
WA_KBLE_STR-REBELN sy-vline 
WA_KBLE_STR-REBELP sy-vline 
WA_KBLE_STR-RZEKKN sy-vline 
WA_KBLE_STR-RETENR sy-vline 
WA_KBLE_STR-RSTUNR sy-vline 
WA_KBLE_STR-RZAEHK sy-vline 
WA_KBLE_STR-RBANFN sy-vline 
WA_KBLE_STR-RBNFPO sy-vline 
WA_KBLE_STR-RZEBKN sy-vline 
WA_KBLE_STR-RKBLNR sy-vline 
WA_KBLE_STR-RKBLPOS sy-vline 
WA_KBLE_STR-BLCKZ sy-vline 
WA_KBLE_STR-AWTYP sy-vline 
WA_KBLE_STR-AWREF sy-vline 
WA_KBLE_STR-AWORG sy-vline 
WA_KBLE_STR-RCOBELNR sy-vline 
WA_KBLE_STR-RCOBUZEI sy-vline 
WA_KBLE_STR-WTABBAPP sy-vline 
WA_KBLE_STR-KURSU sy-vline 
WA_KBLE_STR-DATU sy-vline 
WA_KBLE_STR-AWSYS sy-vline 
WA_KBLE_STR-AWPOS sy-vline 
WA_KBLE_STR-BUDAT sy-vline 
WA_KBLE_STR-FIKEY sy-vline 
WA_KBLE_STR-PSOWO sy-vline      INTO ld_text SEPARATED BY SPACE.

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