ABAP Select data from SAP table ISI_JITDATA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ISI_JITDATA
*  INTO TABLE @DATA(IT_ISI_JITDATA2).
*--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_ISI_JITDATA INDEX 1 INTO DATA(WA_ISI_JITDATA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ISI_JITDATA>-JIT_DATA = 1.
<ISI_JITDATA>-JIT_MAT_TOTAL = 1.
<ISI_JITDATA>-JIT_DETAILS = 1.
<ISI_JITDATA>-VEHID = 1.
<ISI_JITDATA>-CUSTOMER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ISI_JITDATA-CPLANT, sy-vline,
  WA_ISI_JITDATA-VETYP, sy-vline,
  WA_ISI_JITDATA-SSPEZ, sy-vline,
  WA_ISI_JITDATA-HEADERTEXT, sy-vline,
  WA_ISI_JITDATA-HEADER, sy-vline,
  WA_ISI_JITDATA-PLANT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ISI_JITDATA 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_ISI_JITDATA 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_ISI_JITDATA INTO WA_ISI_JITDATA.


*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 CUSTOMER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ISI_JITDATA-CUSTOMER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISI_JITDATA-CUSTOMER.
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_ISI_JITDATA_STR, 
JIT_DATA TYPE STRING,
JIT_MAT_TOTAL TYPE STRING,
JIT_DETAILS TYPE STRING,
VEHID TYPE STRING,
CUSTOMER TYPE STRING,
CPLANT TYPE STRING,
VETYP TYPE STRING,
SSPEZ TYPE STRING,
HEADERTEXT TYPE STRING,
HEADER TYPE STRING,
PLANT TYPE STRING,
DESTI TYPE STRING,
PLANNEDSHIPDATE TYPE STRING,
SHIPDATE TYPE STRING,
SHIPTIME TYPE STRING,
STATUS TYPE STRING,
INTSTT TYPE STRING,
STDAT TYPE STRING,
STATUSDATE TYPE STRING,
STATUSTIME TYPE STRING,
OUTPO TYPE STRING,
ITEMTEXT TYPE STRING,
JITMAT_DATA TYPE STRING,
JIT_MIMEDATA TYPE STRING,
DATA TYPE STRING,
LENGTH TYPE STRING,
TYPE TYPE STRING,
VENDOR_HELP TYPE STRING,
PLANT_HELP TYPE STRING,
STATUS_HELP TYPE STRING,
VIEW_HELP TYPE STRING,
SORTB_HELP TYPE STRING,
KSTATUS_HELP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ISI_JITDATA_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_ISI_JITDATA_STR-JIT_DATA sy-vline 
WA_ISI_JITDATA_STR-JIT_MAT_TOTAL sy-vline 
WA_ISI_JITDATA_STR-JIT_DETAILS sy-vline 
WA_ISI_JITDATA_STR-VEHID sy-vline 
WA_ISI_JITDATA_STR-CUSTOMER sy-vline 
WA_ISI_JITDATA_STR-CPLANT sy-vline 
WA_ISI_JITDATA_STR-VETYP sy-vline 
WA_ISI_JITDATA_STR-SSPEZ sy-vline 
WA_ISI_JITDATA_STR-HEADERTEXT sy-vline 
WA_ISI_JITDATA_STR-HEADER sy-vline 
WA_ISI_JITDATA_STR-PLANT sy-vline 
WA_ISI_JITDATA_STR-DESTI sy-vline 
WA_ISI_JITDATA_STR-PLANNEDSHIPDATE sy-vline 
WA_ISI_JITDATA_STR-SHIPDATE sy-vline 
WA_ISI_JITDATA_STR-SHIPTIME sy-vline 
WA_ISI_JITDATA_STR-STATUS sy-vline 
WA_ISI_JITDATA_STR-INTSTT sy-vline 
WA_ISI_JITDATA_STR-STDAT sy-vline 
WA_ISI_JITDATA_STR-STATUSDATE sy-vline 
WA_ISI_JITDATA_STR-STATUSTIME sy-vline 
WA_ISI_JITDATA_STR-OUTPO sy-vline 
WA_ISI_JITDATA_STR-ITEMTEXT sy-vline 
WA_ISI_JITDATA_STR-JITMAT_DATA sy-vline 
WA_ISI_JITDATA_STR-JIT_MIMEDATA sy-vline 
WA_ISI_JITDATA_STR-DATA sy-vline 
WA_ISI_JITDATA_STR-LENGTH sy-vline 
WA_ISI_JITDATA_STR-TYPE sy-vline 
WA_ISI_JITDATA_STR-VENDOR_HELP sy-vline 
WA_ISI_JITDATA_STR-PLANT_HELP sy-vline 
WA_ISI_JITDATA_STR-STATUS_HELP sy-vline 
WA_ISI_JITDATA_STR-VIEW_HELP sy-vline 
WA_ISI_JITDATA_STR-SORTB_HELP sy-vline 
WA_ISI_JITDATA_STR-KSTATUS_HELP sy-vline      INTO ld_text SEPARATED BY SPACE.

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