ABAP Select data from SAP table JBKLOBJ1_EXT into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP JBKLOBJ1_EXT 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 JBKLOBJ1_EXT. 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 JBKLOBJ1_EXT 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_JBKLOBJ1_EXT TYPE STANDARD TABLE OF JBKLOBJ1_EXT,
      WA_JBKLOBJ1_EXT TYPE JBKLOBJ1_EXT,
      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: <JBKLOBJ1_EXT> TYPE JBKLOBJ1_EXT.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_JBKLOBJ1_EXT.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM JBKLOBJ1_EXT
  INTO TABLE IT_JBKLOBJ1_EXT.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM JBKLOBJ1_EXT
*  INTO TABLE @DATA(IT_JBKLOBJ1_EXT2).
*--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_JBKLOBJ1_EXT INDEX 1 INTO DATA(WA_JBKLOBJ1_EXT2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_JBKLOBJ1_EXT ASSIGNING <JBKLOBJ1_EXT>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<JBKLOBJ1_EXT>-MANDT = 1.
<JBKLOBJ1_EXT>-OBJNR = 1.
<JBKLOBJ1_EXT>-CONTROL01 = 1.
<JBKLOBJ1_EXT>-SLPG = 1.
<JBKLOBJ1_EXT>-ARR = 1.

ENDLOOP.

LOOP AT IT_JBKLOBJ1_EXT INTO WA_JBKLOBJ1_EXT.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_JBKLOBJ1_EXT-RATING, sy-vline,
  WA_JBKLOBJ1_EXT-RRFIND, sy-vline,
  WA_JBKLOBJ1_EXT-NID, sy-vline,
  WA_JBKLOBJ1_EXT-SID, sy-vline,
  WA_JBKLOBJ1_EXT-UPUSERK, sy-vline,
  WA_JBKLOBJ1_EXT-DUPDATK, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_JBKLOBJ1_EXT 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_JBKLOBJ1_EXT 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_JBKLOBJ1_EXT INTO WA_JBKLOBJ1_EXT.


*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 PARTNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_JBKLOBJ1_EXT-PARTNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_JBKLOBJ1_EXT-PARTNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field GRUPP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_JBKLOBJ1_EXT-GRUPP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_JBKLOBJ1_EXT-GRUPP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PARTNER_DERI
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_JBKLOBJ1_EXT-PARTNER_DERI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_JBKLOBJ1_EXT-PARTNER_DERI.
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_JBKLOBJ1_EXT_STR, 
MANDT TYPE STRING,
OBJNR TYPE STRING,
CONTROL01 TYPE STRING,
SLPG TYPE STRING,
ARR TYPE STRING,
RATING TYPE STRING,
RRFIND TYPE STRING,
NID TYPE STRING,
SID TYPE STRING,
UPUSERK TYPE STRING,
DUPDATK TYPE STRING,
TUPTIMK TYPE STRING,
CRUSERK TYPE STRING,
DCRDATK TYPE STRING,
TCRTIMK TYPE STRING,
FAZNR_OBJ TYPE STRING,
PARTNR TYPE STRING,
RISK_EFFECT TYPE STRING,
SARAKT TYPE STRING,
DARBEG TYPE STRING,
DAREND TYPE STRING,
GRUPP TYPE STRING,
EBENE TYPE STRING,
DISPW TYPE STRING,
PARTNER_DERI TYPE STRING,
LRB TYPE STRING,
LRL TYPE STRING,
LRL_POL TYPE STRING,
INTORG TYPE STRING,
LEQ TYPE STRING,
CEQ TYPE STRING,
DLRBEG TYPE STRING,
DLREND TYPE STRING,
SLRAKT TYPE STRING,
UPUSERLR TYPE STRING,
DUPDATLR TYPE STRING,
TUPTIMLR TYPE STRING,
CRUSERLR TYPE STRING,
DCRDATLR TYPE STRING,
TCRTIMLR TYPE STRING,
AKTDB TYPE STRING,
BFTNR_TMP TYPE STRING,
CAID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_JBKLOBJ1_EXT_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_JBKLOBJ1_EXT_STR-MANDT sy-vline 
WA_JBKLOBJ1_EXT_STR-OBJNR sy-vline 
WA_JBKLOBJ1_EXT_STR-CONTROL01 sy-vline 
WA_JBKLOBJ1_EXT_STR-SLPG sy-vline 
WA_JBKLOBJ1_EXT_STR-ARR sy-vline 
WA_JBKLOBJ1_EXT_STR-RATING sy-vline 
WA_JBKLOBJ1_EXT_STR-RRFIND sy-vline 
WA_JBKLOBJ1_EXT_STR-NID sy-vline 
WA_JBKLOBJ1_EXT_STR-SID sy-vline 
WA_JBKLOBJ1_EXT_STR-UPUSERK sy-vline 
WA_JBKLOBJ1_EXT_STR-DUPDATK sy-vline 
WA_JBKLOBJ1_EXT_STR-TUPTIMK sy-vline 
WA_JBKLOBJ1_EXT_STR-CRUSERK sy-vline 
WA_JBKLOBJ1_EXT_STR-DCRDATK sy-vline 
WA_JBKLOBJ1_EXT_STR-TCRTIMK sy-vline 
WA_JBKLOBJ1_EXT_STR-FAZNR_OBJ sy-vline 
WA_JBKLOBJ1_EXT_STR-PARTNR sy-vline 
WA_JBKLOBJ1_EXT_STR-RISK_EFFECT sy-vline 
WA_JBKLOBJ1_EXT_STR-SARAKT sy-vline 
WA_JBKLOBJ1_EXT_STR-DARBEG sy-vline 
WA_JBKLOBJ1_EXT_STR-DAREND sy-vline 
WA_JBKLOBJ1_EXT_STR-GRUPP sy-vline 
WA_JBKLOBJ1_EXT_STR-EBENE sy-vline 
WA_JBKLOBJ1_EXT_STR-DISPW sy-vline 
WA_JBKLOBJ1_EXT_STR-PARTNER_DERI sy-vline 
WA_JBKLOBJ1_EXT_STR-LRB sy-vline 
WA_JBKLOBJ1_EXT_STR-LRL sy-vline 
WA_JBKLOBJ1_EXT_STR-LRL_POL sy-vline 
WA_JBKLOBJ1_EXT_STR-INTORG sy-vline 
WA_JBKLOBJ1_EXT_STR-LEQ sy-vline 
WA_JBKLOBJ1_EXT_STR-CEQ sy-vline 
WA_JBKLOBJ1_EXT_STR-DLRBEG sy-vline 
WA_JBKLOBJ1_EXT_STR-DLREND sy-vline 
WA_JBKLOBJ1_EXT_STR-SLRAKT sy-vline 
WA_JBKLOBJ1_EXT_STR-UPUSERLR sy-vline 
WA_JBKLOBJ1_EXT_STR-DUPDATLR sy-vline 
WA_JBKLOBJ1_EXT_STR-TUPTIMLR sy-vline 
WA_JBKLOBJ1_EXT_STR-CRUSERLR sy-vline 
WA_JBKLOBJ1_EXT_STR-DCRDATLR sy-vline 
WA_JBKLOBJ1_EXT_STR-TCRTIMLR sy-vline 
WA_JBKLOBJ1_EXT_STR-AKTDB sy-vline 
WA_JBKLOBJ1_EXT_STR-BFTNR_TMP sy-vline 
WA_JBKLOBJ1_EXT_STR-CAID sy-vline      INTO ld_text SEPARATED BY SPACE.

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