SQL 数据截断 : Incorrect date value

Question

我遇到了这个错误。

Data truncation: Incorrect date value: '18-JUN-13' for column 'dateFrom' at row 1

这个错误可能是什么原因？

INSERT INTO Booking (hotelNo, guestNo, dateFrom, dateTo, roomNo) VALUES ('01', '01', '18-JUN-13', '26-NOV-13', '01'); 
INSERT INTO Booking (hotelNo, guestNo, dateFrom, dateTo, roomNo) VALUES ('02', '01', '18-JUN-85', '26-JUN-85', '02'); 
INSERT INTO Booking (hotelNo, guestNo, dateFrom, dateTo, roomNo) VALUES ('02', '03', '18-JUN-66', '26-JUN-66', '01'); 
INSERT INTO Booking (hotelNo, guestNo, dateFrom, dateTo, roomNo) VALUES ('04', '02', '18-OCT-13', '23-OCT-13', '01'); 
INSERT INTO Booking (hotelNo, guestNo, dateFrom, dateTo, roomNo) VALUES ('02', '03', '18-JUL-87', '26-AUG-87', '01'); 
INSERT INTO Booking (hotelNo, guestNo, dateFrom, dateTo, roomNo) VALUES ('02', '03', '18-AUG-87', '26-AUG-87', '01'); 
INSERT INTO Booking (hotelNo, guestNo, dateFrom, dateTo, roomNo) VALUES ('02', '01', '18-AUG-87', '26-SEP-87', '01');

Answer 1

如果您不是绝对需要依赖格式化日期，use the SQL standard DATE literal instead, as I've described in this blog post ， 总是。所以，而不是:

INSERT INTO Booking (hotelNo, guestNo, dateFrom, dateTo, roomNo) 
VALUES ('01', '01', '18-JUN-13', '26-NOV-13', '01'); 

...写:

INSERT INTO Booking (hotelNo, guestNo, dateFrom, dateTo, roomNo) 
VALUES ('01', '01', DATE '2013-06-18', DATE '2013-11-26', '01'); 

如果该格式是必需的(例如，因为您要从某些外部源加载数据)，请使用 TO_DATE() 来解析它:

INSERT INTO Booking (hotelNo, guestNo, dateFrom, dateTo, roomNo) 
VALUES (
  '01', 
  '01', 
  TO_DATE('18-JUN-13', 'DD-MON-YY'), 
  TO_DATE('26-NOV-13', 'DD-MON-YY'), 
  '01'
);