ABAP Select data from SAP table CEDEVICESTOCKQ into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CEDEVICESTOCKQ
*  INTO TABLE @DATA(IT_CEDEVICESTOCKQ2).
*--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_CEDEVICESTOCKQ INDEX 1 INTO DATA(WA_CEDEVICESTOCKQ2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CEDEVICESTOCKQ>-MANDT = 1.
<CEDEVICESTOCKQ>-UTILITIESDEVICECATEGORY = 1.
<CEDEVICESTOCKQ>-UTILSDEVICEFUNCTIONCLASS = 1.
<CEDEVICESTOCKQ>-UTILSDEVICECONSTRUCTIONCLASS = 1.
<CEDEVICESTOCKQ>-DIVISION = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CEDEVICESTOCKQ-DIVISIONNAME, sy-vline,
  WA_CEDEVICESTOCKQ-PLANT, sy-vline,
  WA_CEDEVICESTOCKQ-PLANTNAME, sy-vline,
  WA_CEDEVICESTOCKQ-STORAGELOCATION, sy-vline,
  WA_CEDEVICESTOCKQ-STORAGELOCATIONNAME, sy-vline,
  WA_CEDEVICESTOCKQ-UTILSDEVICECATEGORYDESCRIPTION, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CEDEVICESTOCKQ 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_CEDEVICESTOCKQ 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_CEDEVICESTOCKQ INTO WA_CEDEVICESTOCKQ.


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

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

*Conversion exit GERNR, internal->external for field SERIALNUMBER
CALL FUNCTION 'CONVERSION_EXIT_GERNR_OUTPUT'
  EXPORTING
    input =                      WA_CEDEVICESTOCKQ-SERIALNUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CEDEVICESTOCKQ-SERIALNUMBER.
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_CEDEVICESTOCKQ_STR, 
MANDT TYPE STRING,
UTILITIESDEVICECATEGORY TYPE STRING,
UTILSDEVICEFUNCTIONCLASS TYPE STRING,
UTILSDEVICECONSTRUCTIONCLASS TYPE STRING,
DIVISION TYPE STRING,
DIVISIONNAME TYPE STRING,
PLANT TYPE STRING,
PLANTNAME TYPE STRING,
STORAGELOCATION TYPE STRING,
STORAGELOCATIONNAME TYPE STRING,
UTILSDEVICECATEGORYDESCRIPTION TYPE STRING,
UTILSDEVICEADVNCDMETERCAT TYPE STRING,
UTILSDEVICEADVNCDMETERCATNAME TYPE STRING,
ASSETMANUFACTURERNAME TYPE STRING,
MANUFACTURERPARTTYPENAME TYPE STRING,
UTILITIESDEVICE TYPE STRING,
SERIALNUMBER TYPE STRING,
CONSTRUCTIONYEAR TYPE STRING,
ADVANCEDMETERINGSYSTEM TYPE STRING,
GOODSMOVEMENTSTOCKTYPE TYPE STRING,
INVENTORYSPECIALSTOCKTYPE TYPE STRING,
BATCH TYPE STRING,
NMBROFSTOCKDEVICES TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CEDEVICESTOCKQ_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_CEDEVICESTOCKQ_STR-MANDT sy-vline 
WA_CEDEVICESTOCKQ_STR-UTILITIESDEVICECATEGORY sy-vline 
WA_CEDEVICESTOCKQ_STR-UTILSDEVICEFUNCTIONCLASS sy-vline 
WA_CEDEVICESTOCKQ_STR-UTILSDEVICECONSTRUCTIONCLASS sy-vline 
WA_CEDEVICESTOCKQ_STR-DIVISION sy-vline 
WA_CEDEVICESTOCKQ_STR-DIVISIONNAME sy-vline 
WA_CEDEVICESTOCKQ_STR-PLANT sy-vline 
WA_CEDEVICESTOCKQ_STR-PLANTNAME sy-vline 
WA_CEDEVICESTOCKQ_STR-STORAGELOCATION sy-vline 
WA_CEDEVICESTOCKQ_STR-STORAGELOCATIONNAME sy-vline 
WA_CEDEVICESTOCKQ_STR-UTILSDEVICECATEGORYDESCRIPTION sy-vline 
WA_CEDEVICESTOCKQ_STR-UTILSDEVICEADVNCDMETERCAT sy-vline 
WA_CEDEVICESTOCKQ_STR-UTILSDEVICEADVNCDMETERCATNAME sy-vline 
WA_CEDEVICESTOCKQ_STR-ASSETMANUFACTURERNAME sy-vline 
WA_CEDEVICESTOCKQ_STR-MANUFACTURERPARTTYPENAME sy-vline 
WA_CEDEVICESTOCKQ_STR-UTILITIESDEVICE sy-vline 
WA_CEDEVICESTOCKQ_STR-SERIALNUMBER sy-vline 
WA_CEDEVICESTOCKQ_STR-CONSTRUCTIONYEAR sy-vline 
WA_CEDEVICESTOCKQ_STR-ADVANCEDMETERINGSYSTEM sy-vline 
WA_CEDEVICESTOCKQ_STR-GOODSMOVEMENTSTOCKTYPE sy-vline 
WA_CEDEVICESTOCKQ_STR-INVENTORYSPECIALSTOCKTYPE sy-vline 
WA_CEDEVICESTOCKQ_STR-BATCH sy-vline 
WA_CEDEVICESTOCKQ_STR-NMBROFSTOCKDEVICES sy-vline      INTO ld_text SEPARATED BY SPACE.

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