数据库问题
how to pass a null value to a foreign key field?(如何将空值传递给外键字段?)
Best way to store a many-to-many relationship in MySQL?(在 MySQL 中存储多对多关系的最佳方式?)
MySQL datetime index is not working(MySQL 日期时间索引不起作用)
Does a SELECT query always return rows in the same order? Table with clustered index(SELECT 查询是否总是以相同的顺序返回行?带有聚集索引的表)
Multiple yet mutually exclusive foreign keys - is this the way to go?(多个但互斥的外键 - 这是要走的路吗?)
How to enforce unique constraint in MySQL?(如何在 MySQL 中强制执行唯一约束?)
Maintaining subclass integrity in a relational database(在关系数据库中维护子类的完整性)
natural key vs surrogate key an innodb foreign key(自然键与代理键 innodb 外键)
Why to use quot;not null primary keyquot; in TSQL?(为什么要使用“非空主键?在 TSQL 中?)
Database design: one huge table or separate tables?(数据库设计:一张大表还是单独的表?)
What is best performance for Retrieving MySQL EAV results as Relational Table(将 MySQL EAV 结果作为关系表检索的最佳性能是什么)
Classic ASP problem connecting to remote SQL Server database(连接远程SQL Server数据库的经典ASP问题)
