globally unique identifier

I. INTRODUCTIONA UUID is a globally unique identifier of 128 bits, usually represented by a 32-byte alphabetic string. It can guarantee the uniqueness of time and space, also known as the GUID.All called: uuid--universally unique IDentifier is

1. Introduction to GUIDGUID: that is, Globally Unique Identifier (Globally Unique IDentifier) is also called UUID (Universally Unique Identifier ). GUID is a 128-bit digital identifier generated by a specific algorithm. It is used to indicate the

A Globally Unique Identifier (GUID, Globally Unique IDentifier) is also called a UUID (Universally Unique Identifier ). GUID is a 128-bit numeric identifier generated by an algorithm. The GUID format is "xxxxxxxx-xxxx-xxxxxxxxxxxx", where x is a

Original link: http://www.cnblogs.com/dkblog/archive/2011/10/10/2205200.htmlInformation:Python official doc: "20.15. Uuid-uuid objects according to RFC 4122" UUID Algorithm Introduction: "A universally Unique IDentifier (UUID) URN

Information:Python official doc: "20.15. Uuid-uuid objects according to RFC 4122" UUID Algorithm Introduction: "A universally Unique IDentifier (UUID) URN Namespace"Overview:UUIDis a 128-bit globally unique identifier, typically represented by a 3

The GUID is a 128-bit long number, typically represented by a 16 binary. The core idea of the algorithm is to combine the machine's NIC, local time, and a random number to generate the GUID. Theoretically, if a machine produces 10 million GUIDs per

1. BasicA UUID is a globally unique identifier of 128 bits, typically represented by a 32-byte string (hexadecimal).It guarantees the uniqueness of time and space, also known as a GUID, all called: uuid--universally Unique IDentifier Python

  This article mainly introduces the use of PHP to generate GUIDs, using functions and classes to generate GUIDs, detailed description of what is the GUID, the advantages of GUIDs, and so on, the need for friends can refer to the following First,

Information:Official Python doc: "20.15." Uuid-uuid objects according to RFC 4122UUID Algorithm Introduction: "A universally Unique IDentifier (UUID) URN Namespace"Overview:A UUID is a globally unique identifier of 128 bits, typically represented by

A globally unique identifier (guid,globally unique Identifier) is also known as a UUID (universally unique Identifier). A GUID is a 128-bit numeric identifier generated by the algorithm in binary length. The GUID is formatted as "Xxxxxxxx-xxxx-xxxx-

Note that a declared receive variable cannot be named with a "UUID" or an error----such as the var uuid = uuid (); A globally unique identifier (guid,globally unique Identifier) is also known as a UUID (universally unique Identifier). A GUID is a 128

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Sometimes we post bar in Baidu, in a website, save some pictures on the page, the picture name is sometimes a string of very long numbers and letters, but without exception, the image will not appear duplicate. This unique ID, generally obtained by

The globally unique identifier (guid,globally unique Identifier) is a numeric identifier generated by the algorithm with a binary length of 128 bits. Ideally, no computer or computer cluster will generate two identical GUIDs. The total number of

Bit integral typeThe bit data type is integral, and its value can only be 0, 1, or null. This data type is used to store data that has only two possible values, such as Yes or No, True or false, on, or off.Note: A data type that is space-saving and

Decimal exact numeric typeThe decimal data type can be used to store numeric data of a fixed precision and range from 10 to 38 powers-1 to 10 of 38 power-1. When you use this data type, you must specify the range and precision. The range is the

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For an object that exists in a Java virtual machine, its internal state remains in memory only. After the JVM has stopped, these states are lost. In many cases, the internal state of an object needs to be persisted. When it comes to persistence, the

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