Top "Uniqueidentifier" questions

With reference to a given (possibly implicit) set of objects, a unique identifier is any identifier which is guaranteed to be unique among all identifiers used for those objects and for a specific purpose.

How to generate SOPInstance UID for DICOM file?

I am developing a system which will be able to create structured report for PACS. Obviously in order to create …

python uuid uniqueidentifier dicom
Generate a unique value for a combination of two numbers

Consider I've two numbers 1023232 & 44. I want to generate a unique number representing this combination of numbers. How can i …

c# uniqueidentifier
Is there a simple way to create a unique integer key from a two-integer composite key?

For various reasons that aren't too germane to the question, I've got a table with a composite key made out …

tsql math primary-key uniqueidentifier composite-key
Mifare cards: distinguish between 4-byte and 7-byte UIDs

I have a card reader that always report 64 bits, and can read cards with 4 or 7 byte UIDs. As an example, …

uniqueidentifier rfid mifare smartcard-reader contactless-smartcard
Thread.getId() global uniqueness question

If multiple Java applications are running on a system, is each Thread ID unique relative to all other Java threads, …

java multithreading uniqueidentifier
Is there a software that can change NFC Tag's serial number?

I ordered a bunch of NFC tags from a Chinese supplier (I know, red flags) with the promise that they …

tags nfc uniqueidentifier mifare serial-number
What is the unique identification for emails?

I'm trying to find the guaranteed unique identifier to distinguish emails from each other. Currently, I am writing an application …

c# email exchange-server uniqueidentifier
Unique Id creation of a fixed length

Well, I have been looking at ways to generate UIDs in java code (most of them coming to stackoverflow too). …

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How can I create a unique 7-digit code for an entity?

When a user adds a new item in my system, I want to produce a unique non-incrementing pseudo-random 7-digit code …

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Unique computer ID hardware based in Java

I need to generate a unique code from a single PC, my software will be distribute by licence, and locally …

java uniqueidentifier