!!Get Employee EID_ID value

!Functionality:
This function retrieves the ID for [P2K_HR_IDENTITIES]

!Parameters:

|PERSON_CODE     | ''Optional''.  The [PERSON_CODE] for the employee.
|GOVERNMENT_CODE | ''Optional''.  The [GOVERNMENT_CODE] for the employee.

!Returns: 
Numeric

!Errors:  
* If no data is found (the employee cannot be found using either code), zero 0 is returned
* If any error occurs during data retrieval, -1 is returned
* If neither parameter is passed, then NULL is returned


!Example: 

{{P2K_PU.GET_EID(~)}}

will get the EID_ID value for the passed person code

{{P2K_PU.GET_EID(0,~)}}

will get the EID_ID value for the passed government code.  Note that the first parameter is optional, but must still contain a value.

!Notes

* If you pass both [GOVERNMENT_CODE] and [PERSON_CODE] (as non-ZERO values), Government Code will be used first. 
* [GOVERNMENT_CODE] will be filled with leading zeroes, to make it nine digits long, and any hyphen separators provided, will be stripped out.
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![Notes|Edit:Internal.GET_EID]
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