ABAP Select data from SAP table CETECHLYIDVCEQ into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CETECHLYIDVCEQ
*  INTO TABLE @DATA(IT_CETECHLYIDVCEQ2).
*--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_CETECHLYIDVCEQ INDEX 1 INTO DATA(WA_CETECHLYIDVCEQ2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CETECHLYIDVCEQ>-MANDT = 1.
<CETECHLYIDVCEQ>-UTILITIESDEVICECATEGORY = 1.
<CETECHLYIDVCEQ>-UTILSDEVICECATEGORYDESCRIPTION = 1.
<CETECHLYIDVCEQ>-DIVISION = 1.
<CETECHLYIDVCEQ>-DIVISIONNAME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CETECHLYIDVCEQ-UTILITIESREGISTERGROUP, sy-vline,
  WA_CETECHLYIDVCEQ-ADVANCEDMETERINGSYSTEM, sy-vline,
  WA_CETECHLYIDVCEQ-UTILSDEVICEFUNCTIONCLASS, sy-vline,
  WA_CETECHLYIDVCEQ-UTILSDEVICEFUNCTIONCLASSNAME, sy-vline,
  WA_CETECHLYIDVCEQ-UTILSDEVICECONSTRUCTIONCLASS, sy-vline,
  WA_CETECHLYIDVCEQ-UTILSDVCECONSTRUCTIONCLASSNAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CETECHLYIDVCEQ 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_CETECHLYIDVCEQ 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_CETECHLYIDVCEQ INTO WA_CETECHLYIDVCEQ.


*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_CETECHLYIDVCEQ-UTILITIESDEVICECATEGORY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CETECHLYIDVCEQ-UTILITIESDEVICECATEGORY.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit GERNR, internal->external for field SERIALNUMBER
CALL FUNCTION 'CONVERSION_EXIT_GERNR_OUTPUT'
  EXPORTING
    input =                      WA_CETECHLYIDVCEQ-SERIALNUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CETECHLYIDVCEQ-SERIALNUMBER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TPLNR, internal->external for field UTILSDEVICELOCATION
CALL FUNCTION 'CONVERSION_EXIT_TPLNR_OUTPUT'
  EXPORTING
    input =                      WA_CETECHLYIDVCEQ-UTILSDEVICELOCATION
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CETECHLYIDVCEQ-UTILSDEVICELOCATION.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit TPLNR, internal->external for field FUNCTIONALLOCATION
CALL FUNCTION 'CONVERSION_EXIT_TPLNR_OUTPUT'
  EXPORTING
    input =                      WA_CETECHLYIDVCEQ-FUNCTIONALLOCATION
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CETECHLYIDVCEQ-FUNCTIONALLOCATION.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CITYCODE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CETECHLYIDVCEQ-CITYCODE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CETECHLYIDVCEQ-CITYCODE.
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_CETECHLYIDVCEQ_STR, 
MANDT TYPE STRING,
UTILITIESDEVICECATEGORY TYPE STRING,
UTILSDEVICECATEGORYDESCRIPTION TYPE STRING,
DIVISION TYPE STRING,
DIVISIONNAME TYPE STRING,
UTILITIESREGISTERGROUP TYPE STRING,
ADVANCEDMETERINGSYSTEM TYPE STRING,
UTILSDEVICEFUNCTIONCLASS TYPE STRING,
UTILSDEVICEFUNCTIONCLASSNAME TYPE STRING,
UTILSDEVICECONSTRUCTIONCLASS TYPE STRING,
UTILSDVCECONSTRUCTIONCLASSNAME TYPE STRING,
UTILSDEVICEMEASUREMENTTYPE TYPE STRING,
UTILSDEVICEMEASUREMENTTYPENAME TYPE STRING,
UTILSDEVICESAMPLELOT TYPE STRING,
CONSTRUCTIONYEAR TYPE STRING,
SERIALNUMBER TYPE STRING,
UTILSDEVICEVALIDITYSTARTDATE TYPE STRING,
UTILSDEVICEVALIDITYENDDATE TYPE STRING,
UTILSDEVICEBSCCATCOMBINATION TYPE STRING,
UTILSDEVICEINSTALLATIONDATE TYPE STRING,
UTILSDEVICEACTIVITYREASON TYPE STRING,
UTILSDEVICELOCATION TYPE STRING,
UTILSDEVICEGROUP TYPE STRING,
UTILSDEVICEWINDINGGROUP TYPE STRING,
UTILITIESPREPAYMENTMETERTYPE TYPE STRING,
ADVANCEDMETERCAPABILITYGROUP TYPE STRING,
UTILSDEVICEINOUTGROUP TYPE STRING,
UTILSDEVICEARCRCOMMANDGROUP TYPE STRING,
UTILSDEVICEINSPRELEVANCECODE TYPE STRING,
UTILSDEVICEINSPRELEVANCENAME TYPE STRING,
UTILSDEVICECERTIFICATIONYEAR TYPE STRING,
UTILSDEVICECERTFNSTATUS TYPE STRING,
SAMPLEUTILSDEVICESTATUS TYPE STRING,
SAMPLEUTILSDEVICESTATUSNAME TYPE STRING,
UTILSDEVICEPARAMETRIZATIONCODE TYPE STRING,
UTILSDEVICEPARAMETRIZATIONNAME TYPE STRING,
DVCEINDIVCERTFNVALDTYINYRS TYPE STRING,
INSTDUTILSDEVICEISCERTIFIABLE TYPE STRING,
MAINTENANCEPLANT TYPE STRING,
PLANTNAME TYPE STRING,
MAINTENANCEPLANNINGPLANT TYPE STRING,
PLANTNAME2 TYPE STRING,
FUNCTIONALLOCATION TYPE STRING,
FUNCTIONALLOCATIONNAME TYPE STRING,
MAINTENANCEOBJECTLOCATION TYPE STRING,
COUNTRY TYPE STRING,
REGION TYPE STRING,
CITYNAME TYPE STRING,
CITYCODE TYPE STRING,
DISTRICT TYPE STRING,
HOMECITYNAME TYPE STRING,
POSTALCODE TYPE STRING,
STREETNAME TYPE STRING,
HOUSENUMBER TYPE STRING,
HOUSENUMBERSUPPLEMENTTEXT TYPE STRING,
NMBROFINSTALLEDUTILSDEVICES TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CETECHLYIDVCEQ_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_CETECHLYIDVCEQ_STR-MANDT sy-vline 
WA_CETECHLYIDVCEQ_STR-UTILITIESDEVICECATEGORY sy-vline 
WA_CETECHLYIDVCEQ_STR-UTILSDEVICECATEGORYDESCRIPTION sy-vline 
WA_CETECHLYIDVCEQ_STR-DIVISION sy-vline 
WA_CETECHLYIDVCEQ_STR-DIVISIONNAME sy-vline 
WA_CETECHLYIDVCEQ_STR-UTILITIESREGISTERGROUP sy-vline 
WA_CETECHLYIDVCEQ_STR-ADVANCEDMETERINGSYSTEM sy-vline 
WA_CETECHLYIDVCEQ_STR-UTILSDEVICEFUNCTIONCLASS sy-vline 
WA_CETECHLYIDVCEQ_STR-UTILSDEVICEFUNCTIONCLASSNAME sy-vline 
WA_CETECHLYIDVCEQ_STR-UTILSDEVICECONSTRUCTIONCLASS sy-vline 
WA_CETECHLYIDVCEQ_STR-UTILSDVCECONSTRUCTIONCLASSNAME sy-vline 
WA_CETECHLYIDVCEQ_STR-UTILSDEVICEMEASUREMENTTYPE sy-vline 
WA_CETECHLYIDVCEQ_STR-UTILSDEVICEMEASUREMENTTYPENAME sy-vline 
WA_CETECHLYIDVCEQ_STR-UTILSDEVICESAMPLELOT sy-vline 
WA_CETECHLYIDVCEQ_STR-CONSTRUCTIONYEAR sy-vline 
WA_CETECHLYIDVCEQ_STR-SERIALNUMBER sy-vline 
WA_CETECHLYIDVCEQ_STR-UTILSDEVICEVALIDITYSTARTDATE sy-vline 
WA_CETECHLYIDVCEQ_STR-UTILSDEVICEVALIDITYENDDATE sy-vline 
WA_CETECHLYIDVCEQ_STR-UTILSDEVICEBSCCATCOMBINATION sy-vline 
WA_CETECHLYIDVCEQ_STR-UTILSDEVICEINSTALLATIONDATE sy-vline 
WA_CETECHLYIDVCEQ_STR-UTILSDEVICEACTIVITYREASON sy-vline 
WA_CETECHLYIDVCEQ_STR-UTILSDEVICELOCATION sy-vline 
WA_CETECHLYIDVCEQ_STR-UTILSDEVICEGROUP sy-vline 
WA_CETECHLYIDVCEQ_STR-UTILSDEVICEWINDINGGROUP sy-vline 
WA_CETECHLYIDVCEQ_STR-UTILITIESPREPAYMENTMETERTYPE sy-vline 
WA_CETECHLYIDVCEQ_STR-ADVANCEDMETERCAPABILITYGROUP sy-vline 
WA_CETECHLYIDVCEQ_STR-UTILSDEVICEINOUTGROUP sy-vline 
WA_CETECHLYIDVCEQ_STR-UTILSDEVICEARCRCOMMANDGROUP sy-vline 
WA_CETECHLYIDVCEQ_STR-UTILSDEVICEINSPRELEVANCECODE sy-vline 
WA_CETECHLYIDVCEQ_STR-UTILSDEVICEINSPRELEVANCENAME sy-vline 
WA_CETECHLYIDVCEQ_STR-UTILSDEVICECERTIFICATIONYEAR sy-vline 
WA_CETECHLYIDVCEQ_STR-UTILSDEVICECERTFNSTATUS sy-vline 
WA_CETECHLYIDVCEQ_STR-SAMPLEUTILSDEVICESTATUS sy-vline 
WA_CETECHLYIDVCEQ_STR-SAMPLEUTILSDEVICESTATUSNAME sy-vline 
WA_CETECHLYIDVCEQ_STR-UTILSDEVICEPARAMETRIZATIONCODE sy-vline 
WA_CETECHLYIDVCEQ_STR-UTILSDEVICEPARAMETRIZATIONNAME sy-vline 
WA_CETECHLYIDVCEQ_STR-DVCEINDIVCERTFNVALDTYINYRS sy-vline 
WA_CETECHLYIDVCEQ_STR-INSTDUTILSDEVICEISCERTIFIABLE sy-vline 
WA_CETECHLYIDVCEQ_STR-MAINTENANCEPLANT sy-vline 
WA_CETECHLYIDVCEQ_STR-PLANTNAME sy-vline 
WA_CETECHLYIDVCEQ_STR-MAINTENANCEPLANNINGPLANT sy-vline 
WA_CETECHLYIDVCEQ_STR-PLANTNAME2 sy-vline 
WA_CETECHLYIDVCEQ_STR-FUNCTIONALLOCATION sy-vline 
WA_CETECHLYIDVCEQ_STR-FUNCTIONALLOCATIONNAME sy-vline 
WA_CETECHLYIDVCEQ_STR-MAINTENANCEOBJECTLOCATION sy-vline 
WA_CETECHLYIDVCEQ_STR-COUNTRY sy-vline 
WA_CETECHLYIDVCEQ_STR-REGION sy-vline 
WA_CETECHLYIDVCEQ_STR-CITYNAME sy-vline 
WA_CETECHLYIDVCEQ_STR-CITYCODE sy-vline 
WA_CETECHLYIDVCEQ_STR-DISTRICT sy-vline 
WA_CETECHLYIDVCEQ_STR-HOMECITYNAME sy-vline 
WA_CETECHLYIDVCEQ_STR-POSTALCODE sy-vline 
WA_CETECHLYIDVCEQ_STR-STREETNAME sy-vline 
WA_CETECHLYIDVCEQ_STR-HOUSENUMBER sy-vline 
WA_CETECHLYIDVCEQ_STR-HOUSENUMBERSUPPLEMENTTEXT sy-vline 
WA_CETECHLYIDVCEQ_STR-NMBROFINSTALLEDUTILSDEVICES sy-vline      INTO ld_text SEPARATED BY SPACE.

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