我有三张桌子
Create table PROPERTY(
property_number int,
property_name int,
property_type varchar(30),
property_street varchar(30),
property_city varchar(30),
property_zip int,
constraint PK_PROPRETY_NUMBER primary key(property_number)
)
Create table SERVICE(
service_ID int,
service_description varchar(150),
service_amount money,
constraint PK_SERVICE_ID primary key(service_ID),
)
Create table SERVICEHISTORY(
service_ID int,
service_date date,
property_number int,
constraint PK_SERVICEHISTORY_ID primary key(service_ID, service_date),
constraint FK_SERVICE_ID foreign key(service_ID)
references SERVICE(service_ID),
constraint FK_PROPERTY_NUMBER foreign key(property_number)
references PROPERTY(property_number)
)
我成功运行前两个,它们出现在“Tables”下的Object Explorer中。在SERVICEHISTORY中,“引用SERVICE”和“PROPERTY”是错误的。当我运行该脚本时,我得到:
Msg 1767, Level 16, State 0, Line 11
Foreign key 'FK_SERVICE_ID' references invalid table 'SERVICE'.
Msg 1750, Level 16, State 0, Line 11
Could not create constraint. See previous errors.
这里发生了什么?