ABAP Select data from SAP table IJITCUSTOMER into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IJITCUSTOMER
*  INTO TABLE @DATA(IT_IJITCUSTOMER2).
*--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_IJITCUSTOMER INDEX 1 INTO DATA(WA_IJITCUSTOMER2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IJITCUSTOMER>-MANDT = 1.
<IJITCUSTOMER>-CUSTOMERUUID = 1.
<IJITCUSTOMER>-SHIPTOPARTY = 1.
<IJITCUSTOMER>-SALESORGANIZATION = 1.
<IJITCUSTOMER>-DISTRIBUTIONCHANNEL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IJITCUSTOMER-DIVISION, sy-vline,
  WA_IJITCUSTOMER-JITCUSTOMERSTATUS, sy-vline,
  WA_IJITCUSTOMER-ISJITRELEVANT, sy-vline,
  WA_IJITCUSTOMER-DAYSFORINTJITNUMBERGENERATION, sy-vline,
  WA_IJITCUSTOMER-JITCUSTOMERSTATUSTEXT, sy-vline,
  WA_IJITCUSTOMER-CREATEDBYUSER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IJITCUSTOMER 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_IJITCUSTOMER 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_IJITCUSTOMER INTO WA_IJITCUSTOMER.


*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 SHIPTOPARTY
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IJITCUSTOMER-SHIPTOPARTY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IJITCUSTOMER-SHIPTOPARTY.
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_IJITCUSTOMER_STR, 
MANDT TYPE STRING,
CUSTOMERUUID TYPE STRING,
SHIPTOPARTY TYPE STRING,
SALESORGANIZATION TYPE STRING,
DISTRIBUTIONCHANNEL TYPE STRING,
DIVISION TYPE STRING,
JITCUSTOMERSTATUS TYPE STRING,
ISJITRELEVANT TYPE STRING,
DAYSFORINTJITNUMBERGENERATION TYPE STRING,
JITCUSTOMERSTATUSTEXT TYPE STRING,
CREATEDBYUSER TYPE STRING,
CREATIONDATETIME TYPE STRING,
LASTCHANGEDBYUSER TYPE STRING,
LASTCHANGEDATETIME TYPE STRING,
JITDELIVERYHDRSPLITCRITERION TYPE STRING,
JITDELIVERYITEMSPLITCRITERION TYPE STRING,
JITSEQUENCENUMBERPROFILEID TYPE STRING,
JITDELIVHDRSPLTCRITRNFORPCKG TYPE STRING,
JITDELIVCONFISUSED TYPE STRING,
JITDELIVCONFFORREORDER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IJITCUSTOMER_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_IJITCUSTOMER_STR-MANDT sy-vline 
WA_IJITCUSTOMER_STR-CUSTOMERUUID sy-vline 
WA_IJITCUSTOMER_STR-SHIPTOPARTY sy-vline 
WA_IJITCUSTOMER_STR-SALESORGANIZATION sy-vline 
WA_IJITCUSTOMER_STR-DISTRIBUTIONCHANNEL sy-vline 
WA_IJITCUSTOMER_STR-DIVISION sy-vline 
WA_IJITCUSTOMER_STR-JITCUSTOMERSTATUS sy-vline 
WA_IJITCUSTOMER_STR-ISJITRELEVANT sy-vline 
WA_IJITCUSTOMER_STR-DAYSFORINTJITNUMBERGENERATION sy-vline 
WA_IJITCUSTOMER_STR-JITCUSTOMERSTATUSTEXT sy-vline 
WA_IJITCUSTOMER_STR-CREATEDBYUSER sy-vline 
WA_IJITCUSTOMER_STR-CREATIONDATETIME sy-vline 
WA_IJITCUSTOMER_STR-LASTCHANGEDBYUSER sy-vline 
WA_IJITCUSTOMER_STR-LASTCHANGEDATETIME sy-vline 
WA_IJITCUSTOMER_STR-JITDELIVERYHDRSPLITCRITERION sy-vline 
WA_IJITCUSTOMER_STR-JITDELIVERYITEMSPLITCRITERION sy-vline 
WA_IJITCUSTOMER_STR-JITSEQUENCENUMBERPROFILEID sy-vline 
WA_IJITCUSTOMER_STR-JITDELIVHDRSPLTCRITRNFORPCKG sy-vline 
WA_IJITCUSTOMER_STR-JITDELIVCONFISUSED sy-vline 
WA_IJITCUSTOMER_STR-JITDELIVCONFFORREORDER sy-vline      INTO ld_text SEPARATED BY SPACE.

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