外键束缚 foreign key constraint

主键束缚 Primary Key Constraint

主键约束 PRIMARY KEY ; primary key constraint ; PK

结束键 Disconnect button ; enter key ; [计] end key

外部键约束 foreign key constraint ; foreign key

键约束 Key Constraints

支持键和约束 Supports keys and constraints

违反外键约束 FOREIGN KEY VIOLATION

主关键字约束 Primary Key Constraint

外键约束 Foreign Key ; Foreign Key Constraint