mysql unique id generator

MySQL primary key auto-generated table design MySQL has many primary key generation strategies, and one of the most common is auto-generated. In general, the primary key type is bigint UNSIGNED, and the keyword that automatically generates the

Original: Http://mp.weixin.qq.com/s/cqIK5Bv1U0mT97C7EOxmnA distributed unique ID minimalist tutorialOne, the signature All business systems have the need to generate IDs, such as order IDs, product IDs, article IDs, and so on. This ID will be the

How PHP generates a unique numeric ID, note that it is numeric, do not string the Reply content: How PHP generates a unique numeric ID, note that it is numeric, do not string the Landlord, you are a big problem. Twitter,weibo and so on have

This article describes the meaning of Hibernate's generator attribute. The generator attribute has 7 classes, and this article briefly describes the meaning and usage of these 7 classes. [XHTML]View Plaincopy class name="Onlyfun.caterpillar.

This article describes the meaning of Hibernate's generator attribute. The generator attribute has 7 classes, and this article briefly describes the meaning and usage of these 7 classes. [XHTML]View Plaincopy class name="Onlyfun.caterpillar.

This is a creation in Article, where the information may have evolved or changed. Objective In game development, we often have to set a globally unique ID for a request, an object, or something else. The common choices are random numbers, timestamps,

Http://www.cnblogs.com/talo/articles/1663978.html This article describes the significance of the generator attribute of hibernate. There are 7 types of generator attributes. This article briefly describes the meaning and usage of these 7 classes.

PHP generated unique numeric id method summary, PHP generation ID Summary Regarding the question of generating a unique numeric ID, is it necessary to use Rand to generate a random number and then go to the database query for this number? It's a

Key Generator1) assignedPrimary Key from external Program Generates data without hibernate.2) HiLoUse hi/Lo Algorithm The implementation of the primary key generation mechanism requires additional database tables to save the Historical Status of the

Regarding the issue of generating a unique digital ID, is it necessary to generate a random number using Rand and then go to the database query for this number? Feel this kind of words a little time-consuming, is there any other way? Of course not,