postgresql uuid函数
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postgresql使用UUID函数的方法
目录PostgreSQL有两种生成uuid的方法。可以先通过sql查看是否已安装扩展函数，和可以安装的扩展函数1，安装 pgcrypto 扩展函数2，安装 uuid-ossp 扩展函数postgresql有两种生成uuid的方法。[详细]
2025-07-19 08:57 分类：数据库 Why is address zero used for the null pointer?
In C (or C++ for that matter), pointers are special if they have the value zero: I am adviced to set pointers to zero after freeing their memory, because it means freeing the pointer again isn\'t dang[详细]
2022-12-29 04:23 分类：问答
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