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.

I want unique identifier string which detect iPhone device (just like UDID)?

I want unique identifier string for iPhone devices instead of UDID and MAC. 1. Get UDID and MAC are deprecated by …

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LoRaWAN DevEUI, AppEUI and AppKey

I'm trying to understand the three magic LoRaWAN IDs from the LoRaWAN 1.2 specification. My understanding is: DevEUI is like a …

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Programmatically display iPhone/iPad UDID

I have an iPad app in which I get the device's UDID by the following code in the viewDidLoad method. …

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Unique Identifier of a Mac?

On an iPhone I can use [[UIDevice currentDevice] uniqueIdentifier]; to get a string which identifies this device. Is there anything …

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identifierForVendor changes on reinstall

identifierForVendor is not supposed to change on reinstall of app: The value in this property remains the same while the …

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Does UUID getting changed for some cases

I am using user's device UUID to get unique device. NSString *currentUUIDString = [[[UIDevice currentDevice] identifierForVendor] UUIDString]; I know that UUID …

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RFID algorithm to get card ID

I receive bytes from an RFID reader when presenting a card, but I'm unable to figure out how to derive …

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MySQL UUID() when not unique?

What happens when a UUID() generated by MySQL is not unique? If this is for a column that is a …

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How do I generate a session ID in Node.js?

Im trying to learn Node.js without using any third party modules or frameworks. I'm getting to the point where …

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iOS in-app purchase's receipt string explained

I try to understand the receipt information obtained from iTunes server, but could not find relevant documentation. Particularly, what's the …

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