编程问答
Creating a flattened table/view of a hierarchically-defined set of data(创建分层定义的数据集的扁平表/视图)
MySQL: how to do row-level security (like Oracle#39;s Virtual Private Database)?(MySQL:如何做到行级安全(如 Oracle 的 Virtual Private Database)?)
MySQL second auto increment field based on foreign key(MySQL基于外键的第二个自增字段)
How to Maintain Foreign Key Constraint Across Different Databases?(如何维护跨数据库的外键约束?)
UNIQUE constraint controlled by a bit column(由位列控制的 UNIQUE 约束)
What is the best way to enforce a #39;subset#39; relationship with integrity constraints(强制执行具有完整性约束的“子集关系的最佳方法是什么)
Datatype/structure to store timezone offset in MySQL(在 MySQL 中存储时区偏移的数据类型/结构)
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?)
