unique id names

Use the PHPuniqid function to generate a unique ID. The PHPuniqid function is used to generate a unique ID. it is common to use phpuniqid to generate a unique id, such as the temporary cache file name, temporary variables, temporary security code,

The use cases for generating unique IDs are very common, such as temporary cache file names, temporary variables, and temporary security codes. the uniqid () function is based on the current time in microseconds, generate a unique ID. Because the

Use LAST_INSERT_ID of MySQL to determine the unique ID value of each table Shard in the MySQL data table structure. generally, a 'id' field with the 'auto _ INCREMENT 'extension property is defined, to ensure that each record of the data table can

Unique id generated by JAVA UUIDWhen designing a table, a requirement project must process more concurrent data. Similar orders cannot be duplicated and must be unique. I thought it would be nice to get a timestamp accurate to milliseconds. Later I

In addition to the index of different table names, the table structure is the same. If the 'id' field of each table still adopts the 'Auto _ INCREMENT 'method, ID cannot identify only one record.In this case, an External table shard mechanism is

In addition to the index of different table names, the table structure is the same. If the 'id' field of each table still adopts the 'Auto _ INCREMENT 'method, ID cannot identify only one record. In this case, an External table shard mechanism is

Python uses the UUID library to generate a unique ID. UUID Introduction UUID is a 128-bit globally unique identifier, usually represented by a 32-byte string. It can ensure the uniqueness of time and space, also known as GUID. It is called UUID --

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

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