ABAP Select data from SAP table T7NZED into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP T7NZED 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 T7NZED. 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 T7NZED 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_T7NZED TYPE STANDARD TABLE OF T7NZED,
      WA_T7NZED TYPE T7NZED,
      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: <T7NZED> TYPE T7NZED.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_T7NZED.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM T7NZED
  INTO TABLE IT_T7NZED.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM T7NZED
*  INTO TABLE @DATA(IT_T7NZED2).
*--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_T7NZED INDEX 1 INTO DATA(WA_T7NZED2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_T7NZED ASSIGNING <T7NZED>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<T7NZED>-MANDT = 1.
<T7NZED>-GLBID = 1.
<T7NZED>-PERNR = 1.
<T7NZED>-SRNO = 1.
<T7NZED>-SOFTWARE_PROVIDER = 1.

ENDLOOP.

LOOP AT IT_T7NZED INTO WA_T7NZED.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_T7NZED-SOFTWARE_PLATFORM, sy-vline,
  WA_T7NZED-SOFTWARE_RELEASE, sy-vline,
  WA_T7NZED-IDENTIFIER_VALUE_TYPE, sy-vline,
  WA_T7NZED-ERIRD, sy-vline,
  WA_T7NZED-ACCOUNT_TYPE, sy-vline,
  WA_T7NZED-IDENTIFIER_IRD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_T7NZED 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_T7NZED 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_T7NZED INTO WA_T7NZED.


*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 PDATE, internal->external for field IDENTIFIER_DATE_OF_BIRTH
CALL FUNCTION 'CONVERSION_EXIT_PDATE_OUTPUT'
  EXPORTING
    input =                      WA_T7NZED-IDENTIFIER_DATE_OF_BIRTH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_T7NZED-IDENTIFIER_DATE_OF_BIRTH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PDATE, internal->external for field EMPLOYEE_DATE_OF_BIRTH
CALL FUNCTION 'CONVERSION_EXIT_PDATE_OUTPUT'
  EXPORTING
    input =                      WA_T7NZED-EMPLOYEE_DATE_OF_BIRTH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_T7NZED-EMPLOYEE_DATE_OF_BIRTH.
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_T7NZED_STR, 
MANDT TYPE STRING,
GLBID TYPE STRING,
PERNR TYPE STRING,
SRNO TYPE STRING,
SOFTWARE_PROVIDER TYPE STRING,
SOFTWARE_PLATFORM TYPE STRING,
SOFTWARE_RELEASE TYPE STRING,
IDENTIFIER_VALUE_TYPE TYPE STRING,
ERIRD TYPE STRING,
ACCOUNT_TYPE TYPE STRING,
IDENTIFIER_IRD TYPE STRING,
IDENTIFIER_NAME_ON_EILINE TYPE STRING,
IDENTIFIER_DATE_OF_BIRTH TYPE STRING,
IDENTIFIER_START_DATE TYPE STRING,
EMPLOYEE_IRD TYPE STRING,
EMPLOYEE_NAME_ON_EILINE TYPE STRING,
EMPLOYEE_DATE_OF_BIRTH TYPE STRING,
EMPLOYMENT_START_DATE TYPE STRING,
NAME_TITLE TYPE STRING,
NAME_FIRST TYPE STRING,
NAME_SURNAME TYPE STRING,
NAME_MIDDLE TYPE STRING,
TAX_CODE TYPE STRING,
EMPLOYMENT_FINISH_DATE TYPE STRING,
STREET_NUMBER TYPE STRING,
STREET_NAME TYPE STRING,
UNIT_TYPE TYPE STRING,
UNIT_NUMBER TYPE STRING,
DISTRICT TYPE STRING,
TOWN_CITY TYPE STRING,
POST_CODE TYPE STRING,
COUNTRY TYPE STRING,
STATE_PROVINCE TYPE STRING,
FREE_FROM_ADDRESS TYPE STRING,
EMPLOYEE_EMAIL_ADDRESS TYPE STRING,
MOBILE_NUMBER TYPE STRING,
MOBILE_TYPE TYPE STRING,
MOBILE_COUNTRY TYPE STRING,
MOBILE_AREA_CODE TYPE STRING,
MOBILE_EXTENSION TYPE STRING,
PHONE_TYPE TYPE STRING,
PHONE_COUNTRY TYPE STRING,
PHONE_AREA_CODE TYPE STRING,
PHONE_EXTENSION TYPE STRING,
PHONE TYPE STRING,
KIWI_SAVER_STATUS TYPE STRING,
EMPLOYEE_KIWI_SAVER_ELIGIBILIT TYPE STRING,
OPTED_OUT TYPE STRING,
BANK TYPE STRING,
BRANCH TYPE STRING,
ACCOUNT TYPE STRING,
SUFFIX TYPE STRING,
ACCNM_NAME_TITLE TYPE STRING,
ACCNM_NAME_FIRST TYPE STRING,
ACCNM_NAME_SURNAME TYPE STRING,
ACCNM_NAME_MIDDLE TYPE STRING,
OPTED_OUT_SIGNATURE_DATE TYPE STRING,
VALID_RELATIONSHIP TYPE STRING,
ACTION TYPE STRING,
ABKRS TYPE STRING,
PDATE TYPE STRING,
PAYTY TYPE STRING,
PAYID TYPE STRING,
ENDDA TYPE STRING,
BEGDA TYPE STRING,
FPPER TYPE STRING,
TAX_CODE2 TYPE STRING,
TAX_CODE3 TYPE STRING,
TAX_CODE4 TYPE STRING,
LATE_OPT_OUT_REASON TYPE STRING,
LATE_OPT_OUT_RETXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_T7NZED_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_T7NZED_STR-MANDT sy-vline 
WA_T7NZED_STR-GLBID sy-vline 
WA_T7NZED_STR-PERNR sy-vline 
WA_T7NZED_STR-SRNO sy-vline 
WA_T7NZED_STR-SOFTWARE_PROVIDER sy-vline 
WA_T7NZED_STR-SOFTWARE_PLATFORM sy-vline 
WA_T7NZED_STR-SOFTWARE_RELEASE sy-vline 
WA_T7NZED_STR-IDENTIFIER_VALUE_TYPE sy-vline 
WA_T7NZED_STR-ERIRD sy-vline 
WA_T7NZED_STR-ACCOUNT_TYPE sy-vline 
WA_T7NZED_STR-IDENTIFIER_IRD sy-vline 
WA_T7NZED_STR-IDENTIFIER_NAME_ON_EILINE sy-vline 
WA_T7NZED_STR-IDENTIFIER_DATE_OF_BIRTH sy-vline 
WA_T7NZED_STR-IDENTIFIER_START_DATE sy-vline 
WA_T7NZED_STR-EMPLOYEE_IRD sy-vline 
WA_T7NZED_STR-EMPLOYEE_NAME_ON_EILINE sy-vline 
WA_T7NZED_STR-EMPLOYEE_DATE_OF_BIRTH sy-vline 
WA_T7NZED_STR-EMPLOYMENT_START_DATE sy-vline 
WA_T7NZED_STR-NAME_TITLE sy-vline 
WA_T7NZED_STR-NAME_FIRST sy-vline 
WA_T7NZED_STR-NAME_SURNAME sy-vline 
WA_T7NZED_STR-NAME_MIDDLE sy-vline 
WA_T7NZED_STR-TAX_CODE sy-vline 
WA_T7NZED_STR-EMPLOYMENT_FINISH_DATE sy-vline 
WA_T7NZED_STR-STREET_NUMBER sy-vline 
WA_T7NZED_STR-STREET_NAME sy-vline 
WA_T7NZED_STR-UNIT_TYPE sy-vline 
WA_T7NZED_STR-UNIT_NUMBER sy-vline 
WA_T7NZED_STR-DISTRICT sy-vline 
WA_T7NZED_STR-TOWN_CITY sy-vline 
WA_T7NZED_STR-POST_CODE sy-vline 
WA_T7NZED_STR-COUNTRY sy-vline 
WA_T7NZED_STR-STATE_PROVINCE sy-vline 
WA_T7NZED_STR-FREE_FROM_ADDRESS sy-vline 
WA_T7NZED_STR-EMPLOYEE_EMAIL_ADDRESS sy-vline 
WA_T7NZED_STR-MOBILE_NUMBER sy-vline 
WA_T7NZED_STR-MOBILE_TYPE sy-vline 
WA_T7NZED_STR-MOBILE_COUNTRY sy-vline 
WA_T7NZED_STR-MOBILE_AREA_CODE sy-vline 
WA_T7NZED_STR-MOBILE_EXTENSION sy-vline 
WA_T7NZED_STR-PHONE_TYPE sy-vline 
WA_T7NZED_STR-PHONE_COUNTRY sy-vline 
WA_T7NZED_STR-PHONE_AREA_CODE sy-vline 
WA_T7NZED_STR-PHONE_EXTENSION sy-vline 
WA_T7NZED_STR-PHONE sy-vline 
WA_T7NZED_STR-KIWI_SAVER_STATUS sy-vline 
WA_T7NZED_STR-EMPLOYEE_KIWI_SAVER_ELIGIBILIT sy-vline 
WA_T7NZED_STR-OPTED_OUT sy-vline 
WA_T7NZED_STR-BANK sy-vline 
WA_T7NZED_STR-BRANCH sy-vline 
WA_T7NZED_STR-ACCOUNT sy-vline 
WA_T7NZED_STR-SUFFIX sy-vline 
WA_T7NZED_STR-ACCNM_NAME_TITLE sy-vline 
WA_T7NZED_STR-ACCNM_NAME_FIRST sy-vline 
WA_T7NZED_STR-ACCNM_NAME_SURNAME sy-vline 
WA_T7NZED_STR-ACCNM_NAME_MIDDLE sy-vline 
WA_T7NZED_STR-OPTED_OUT_SIGNATURE_DATE sy-vline 
WA_T7NZED_STR-VALID_RELATIONSHIP sy-vline 
WA_T7NZED_STR-ACTION sy-vline 
WA_T7NZED_STR-ABKRS sy-vline 
WA_T7NZED_STR-PDATE sy-vline 
WA_T7NZED_STR-PAYTY sy-vline 
WA_T7NZED_STR-PAYID sy-vline 
WA_T7NZED_STR-ENDDA sy-vline 
WA_T7NZED_STR-BEGDA sy-vline 
WA_T7NZED_STR-FPPER sy-vline 
WA_T7NZED_STR-TAX_CODE2 sy-vline 
WA_T7NZED_STR-TAX_CODE3 sy-vline 
WA_T7NZED_STR-TAX_CODE4 sy-vline 
WA_T7NZED_STR-LATE_OPT_OUT_REASON sy-vline 
WA_T7NZED_STR-LATE_OPT_OUT_RETXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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