ABAP Select data from SAP table ARUN_S_TEMP_ASSIGN_SUPPLY into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ARUN_S_TEMP_ASSIGN_SUPPLY
*  INTO TABLE @DATA(IT_ARUN_S_TEMP_ASSIGN_SUPPLY2).
*--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_ARUN_S_TEMP_ASSIGN_SUPPLY INDEX 1 INTO DATA(WA_ARUN_S_TEMP_ASSIGN_SUPPLY2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ARUN_S_TEMP_ASSIGN_SUPPLY>-SUPPLYNUMBER = 1.
<ARUN_S_TEMP_ASSIGN_SUPPLY>-SUPPLYITEM = 1.
<ARUN_S_TEMP_ASSIGN_SUPPLY>-SUPPLYSCHEDULELINE = 1.
<ARUN_S_TEMP_ASSIGN_SUPPLY>-ASSIGNEDSUPPLYTYPE = 1.
<ARUN_S_TEMP_ASSIGN_SUPPLY>-SUPPLYDELIVERYDATE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ARUN_S_TEMP_ASSIGN_SUPPLY-SUPPLYQUANTITY, sy-vline,
  WA_ARUN_S_TEMP_ASSIGN_SUPPLY-OPENSUPPLYQUANTITY, sy-vline,
  WA_ARUN_S_TEMP_ASSIGN_SUPPLY-ASSIGNEDQUANTITYINBASEUNIT, sy-vline,
  WA_ARUN_S_TEMP_ASSIGN_SUPPLY-NORMALASSIGNEDQUANTITYINBSUNT, sy-vline,
  WA_ARUN_S_TEMP_ASSIGN_SUPPLY-PREVIEWASSIGNEDQUANTITYINBSUNT, sy-vline,
  WA_ARUN_S_TEMP_ASSIGN_SUPPLY-TMPASSIGNEDQUANTITYINBSUNT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ARUN_S_TEMP_ASSIGN_SUPPLY 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_ARUN_S_TEMP_ASSIGN_SUPPLY 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_ARUN_S_TEMP_ASSIGN_SUPPLY INTO WA_ARUN_S_TEMP_ASSIGN_SUPPLY.


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

*Conversion exit CUNIT, internal->external for field BASEUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_ARUN_S_TEMP_ASSIGN_SUPPLY-BASEUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ARUN_S_TEMP_ASSIGN_SUPPLY-BASEUNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATERIAL
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_ARUN_S_TEMP_ASSIGN_SUPPLY-MATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ARUN_S_TEMP_ASSIGN_SUPPLY-MATERIAL.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit MATN1, internal->external for field CROSSPLANTCONFIGURABLEPRODUCT
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_ARUN_S_TEMP_ASSIGN_SUPPLY-CROSSPLANTCONFIGURABLEPRODUCT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ARUN_S_TEMP_ASSIGN_SUPPLY-CROSSPLANTCONFIGURABLEPRODUCT.
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_ARUN_S_TEMP_ASSIGN_SUPPLY_STR, 
SUPPLYNUMBER TYPE STRING,
SUPPLYITEM TYPE STRING,
SUPPLYSCHEDULELINE TYPE STRING,
ASSIGNEDSUPPLYTYPE TYPE STRING,
SUPPLYDELIVERYDATE TYPE STRING,
SUPPLYQUANTITY TYPE STRING,
OPENSUPPLYQUANTITY TYPE STRING,
ASSIGNEDQUANTITYINBASEUNIT TYPE STRING,
NORMALASSIGNEDQUANTITYINBSUNT TYPE STRING,
PREVIEWASSIGNEDQUANTITYINBSUNT TYPE STRING,
TMPASSIGNEDQUANTITYINBSUNT TYPE STRING,
BASEUNIT TYPE STRING,
STOCKSEGMENT TYPE STRING,
STORAGELOCATION TYPE STRING,
MATERIAL TYPE STRING,
PLANT TYPE STRING,
SALESORDER TYPE STRING,
SALESORDERITEM TYPE STRING,
BATCH TYPE STRING,
INVENTORYSPECIALSTOCKTYPE TYPE STRING,
SUPASSGMTSOURCE TYPE STRING,
CROSSPLANTCONFIGURABLEPRODUCT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ARUN_S_TEMP_ASSIGN_SUPPLY_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_ARUN_S_TEMP_ASSIGN_SUPPLY_STR-SUPPLYNUMBER sy-vline 
WA_ARUN_S_TEMP_ASSIGN_SUPPLY_STR-SUPPLYITEM sy-vline 
WA_ARUN_S_TEMP_ASSIGN_SUPPLY_STR-SUPPLYSCHEDULELINE sy-vline 
WA_ARUN_S_TEMP_ASSIGN_SUPPLY_STR-ASSIGNEDSUPPLYTYPE sy-vline 
WA_ARUN_S_TEMP_ASSIGN_SUPPLY_STR-SUPPLYDELIVERYDATE sy-vline 
WA_ARUN_S_TEMP_ASSIGN_SUPPLY_STR-SUPPLYQUANTITY sy-vline 
WA_ARUN_S_TEMP_ASSIGN_SUPPLY_STR-OPENSUPPLYQUANTITY sy-vline 
WA_ARUN_S_TEMP_ASSIGN_SUPPLY_STR-ASSIGNEDQUANTITYINBASEUNIT sy-vline 
WA_ARUN_S_TEMP_ASSIGN_SUPPLY_STR-NORMALASSIGNEDQUANTITYINBSUNT sy-vline 
WA_ARUN_S_TEMP_ASSIGN_SUPPLY_STR-PREVIEWASSIGNEDQUANTITYINBSUNT sy-vline 
WA_ARUN_S_TEMP_ASSIGN_SUPPLY_STR-TMPASSIGNEDQUANTITYINBSUNT sy-vline 
WA_ARUN_S_TEMP_ASSIGN_SUPPLY_STR-BASEUNIT sy-vline 
WA_ARUN_S_TEMP_ASSIGN_SUPPLY_STR-STOCKSEGMENT sy-vline 
WA_ARUN_S_TEMP_ASSIGN_SUPPLY_STR-STORAGELOCATION sy-vline 
WA_ARUN_S_TEMP_ASSIGN_SUPPLY_STR-MATERIAL sy-vline 
WA_ARUN_S_TEMP_ASSIGN_SUPPLY_STR-PLANT sy-vline 
WA_ARUN_S_TEMP_ASSIGN_SUPPLY_STR-SALESORDER sy-vline 
WA_ARUN_S_TEMP_ASSIGN_SUPPLY_STR-SALESORDERITEM sy-vline 
WA_ARUN_S_TEMP_ASSIGN_SUPPLY_STR-BATCH sy-vline 
WA_ARUN_S_TEMP_ASSIGN_SUPPLY_STR-INVENTORYSPECIALSTOCKTYPE sy-vline 
WA_ARUN_S_TEMP_ASSIGN_SUPPLY_STR-SUPASSGMTSOURCE sy-vline 
WA_ARUN_S_TEMP_ASSIGN_SUPPLY_STR-CROSSPLANTCONFIGURABLEPRODUCT sy-vline      INTO ld_text SEPARATED BY SPACE.

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