無效的數據類型

Question

CREATE table flight_details(
flight_id char(10), 
flight_date date, 
flight_time time, 
flight_place varchar2(50), 
tp_id char(8), 
primary key (flight_id), 
foreign key (tp_id) references travel_package(tp_id)); 

當我執行此 這個錯誤出現

flight_time time, * ERROR at line 4: ORA-00902: invalid datatype

如何解決這個問題？的

Answer 1

timestamp代替time

CREATE table flight_details(
flight_id char(10), 
flight_date date, 
flight_time timestamp, 
flight_place varchar2(50), 
tp_id char(8), 
primary key (flight_id), 
foreign key (tp_id) references travel_package(tp_id)); 

Answer 2

使用間隔天（0）到第二代替用於flight_time列時間數據類型。 並參考此鏈接https://dba.stackexchange.com/questions/42084/most-efficient-and-practical-way-to-store-time-values-hhmm-in-oracle-that-mak