问题
i have problem using LIKE structure in DB2:
for example:
select * from TEST where TIME LIKE '2012-03-04-%'
FYI. - TIME is TIMESTAMP data type.
why using LIKE with TIMESTAMPS do not work?
Additional info: i want to extract data from one single day provided by user in select statement.
回答1:
Just expanding on @mortb's answer, I'd either use BETWEEN or
WHERE time >= '2012-03-04' AND time < '2012-03-05'
The advantage of using BETWEEN or a comparison that using casts and LIKE will mean that if there is an index on time it wouldn't be able to be used due to the casting.
回答2:
LIKE is for string (char, varchar) datatypes. Use WHERE time BETWEEN '2012-03-04' AND '2012-03-04 23:59:59.998'
回答3:
You can use like this where time between to_date('2016-06-17 00:00:00','yyyy-mm-dd HH24:MI:SS') and to_date('2016-06-18 00:00:00','yyyy-mm-dd HH24:MI:SS')
来源：https://stackoverflow.com/questions/10009553/why-using-like-with-timestamps-do-not-work-in-db2