生成新的唯一字符串

本文介绍了生成新的唯一字符串的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述 嗨 我想生成一个由8个字符和数字组成的唯一字符串，我可以插入 此字符串作为主键，不再重复 如果选择的话，主键应始终为数字类型(并使其自动递增).如果仍然可以解决此问题，请执行此操作. 可以在此处(可能是最好的) [ ^ ]，此处 [ ^ ]，此处 [ ^ ]，可能还有更多此处 [ ^ ] ;) 实际上，第三个方法的最后一种方法是创建长度为8的字符串. 希望对您有所帮助！

hi I want to generate a unique string consists of 8 char and number which i can insert this string as a primary key not repeated thanks

解决方案

Primary Keys should always be a numeric type (and make it auto-increment) if you have a choice. If you can still fix this, do it. Some methods for creating unique strings can be found here (probably best)[^], here[^], here[^], and possibly some more here[^] ;) The last method of the third one actually kind of way off creates strings of exactly length 8. Hope it helps!