ABAP Select data from SAP table /NAM/JKDISPATCH into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /NAM/JKDISPATCH 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 /NAM/JKDISPATCH. 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 /NAM/JKDISPATCH 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_/NAM/JKDISPATCH TYPE STANDARD TABLE OF /NAM/JKDISPATCH,
      WA_/NAM/JKDISPATCH TYPE /NAM/JKDISPATCH,
      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: </NAM/JKDISPATCH> TYPE /NAM/JKDISPATCH.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /NAM/JKDISPATCH
  INTO TABLE IT_/NAM/JKDISPATCH.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /NAM/JKDISPATCH
*  INTO TABLE @DATA(IT_/NAM/JKDISPATCH2).
*--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_/NAM/JKDISPATCH INDEX 1 INTO DATA(WA_/NAM/JKDISPATCH2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/NAM/JKDISPATCH ASSIGNING </NAM/JKDISPATCH>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</NAM/JKDISPATCH>-MANDT = 1.
</NAM/JKDISPATCH>-DISP_OBJ = 1.
</NAM/JKDISPATCH>-VKORG = 1.
</NAM/JKDISPATCH>-VTWEG = 1.
</NAM/JKDISPATCH>-SPART = 1.

ENDLOOP.

LOOP AT IT_/NAM/JKDISPATCH INTO WA_/NAM/JKDISPATCH.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/NAM/JKDISPATCH-DRERZ, sy-vline,
  WA_/NAM/JKDISPATCH-BP_VSG, sy-vline,
  WA_/NAM/JKDISPATCH-BP_ZUST, sy-vline,
  WA_/NAM/JKDISPATCH-BEZIRK, sy-vline,
  WA_/NAM/JKDISPATCH-BEZRUNDE, sy-vline,
  WA_/NAM/JKDISPATCH-GEOEIN, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/NAM/JKDISPATCH 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_/NAM/JKDISPATCH 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_/NAM/JKDISPATCH INTO WA_/NAM/JKDISPATCH.


*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 DISP_OBJ
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/NAM/JKDISPATCH-DISP_OBJ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/NAM/JKDISPATCH-DISP_OBJ.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field SERVRUNNER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/NAM/JKDISPATCH-SERVRUNNER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/NAM/JKDISPATCH-SERVRUNNER.
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_/NAM/JKDISPATCH_STR, 
MANDT TYPE STRING,
DISP_OBJ TYPE STRING,
VKORG TYPE STRING,
VTWEG TYPE STRING,
SPART TYPE STRING,
DRERZ TYPE STRING,
BP_VSG TYPE STRING,
BP_ZUST TYPE STRING,
BEZIRK TYPE STRING,
BEZRUNDE TYPE STRING,
GEOEIN TYPE STRING,
KUNWE TYPE STRING,
ADRNR_WE TYPE STRING,
BEABLST TYPE STRING,
BEABLST_BP TYPE STRING,
FVNR TYPE STRING,
FVART TYPE STRING,
KVBELN TYPE STRING,
ORDNBR TYPE STRING,
REASON TYPE STRING,
DISPATCHER TYPE STRING,
SERVRUNNER TYPE STRING,
PRIO TYPE STRING,
STATUS TYPE STRING,
REDELIV TYPE STRING,
TIMESTAMP_CREATE TYPE STRING,
TIMESTAMP_CHANGE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/NAM/JKDISPATCH_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_/NAM/JKDISPATCH_STR-MANDT sy-vline 
WA_/NAM/JKDISPATCH_STR-DISP_OBJ sy-vline 
WA_/NAM/JKDISPATCH_STR-VKORG sy-vline 
WA_/NAM/JKDISPATCH_STR-VTWEG sy-vline 
WA_/NAM/JKDISPATCH_STR-SPART sy-vline 
WA_/NAM/JKDISPATCH_STR-DRERZ sy-vline 
WA_/NAM/JKDISPATCH_STR-BP_VSG sy-vline 
WA_/NAM/JKDISPATCH_STR-BP_ZUST sy-vline 
WA_/NAM/JKDISPATCH_STR-BEZIRK sy-vline 
WA_/NAM/JKDISPATCH_STR-BEZRUNDE sy-vline 
WA_/NAM/JKDISPATCH_STR-GEOEIN sy-vline 
WA_/NAM/JKDISPATCH_STR-KUNWE sy-vline 
WA_/NAM/JKDISPATCH_STR-ADRNR_WE sy-vline 
WA_/NAM/JKDISPATCH_STR-BEABLST sy-vline 
WA_/NAM/JKDISPATCH_STR-BEABLST_BP sy-vline 
WA_/NAM/JKDISPATCH_STR-FVNR sy-vline 
WA_/NAM/JKDISPATCH_STR-FVART sy-vline 
WA_/NAM/JKDISPATCH_STR-KVBELN sy-vline 
WA_/NAM/JKDISPATCH_STR-ORDNBR sy-vline 
WA_/NAM/JKDISPATCH_STR-REASON sy-vline 
WA_/NAM/JKDISPATCH_STR-DISPATCHER sy-vline 
WA_/NAM/JKDISPATCH_STR-SERVRUNNER sy-vline 
WA_/NAM/JKDISPATCH_STR-PRIO sy-vline 
WA_/NAM/JKDISPATCH_STR-STATUS sy-vline 
WA_/NAM/JKDISPATCH_STR-REDELIV sy-vline 
WA_/NAM/JKDISPATCH_STR-TIMESTAMP_CREATE sy-vline 
WA_/NAM/JKDISPATCH_STR-TIMESTAMP_CHANGE sy-vline      INTO ld_text SEPARATED BY SPACE.

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