The DATE data type stores date and time information. Each DATE value in ApsaraDB for OceanBase stores the following information: year, month, day, hour, minute, and second, but the value does not contain time zone information.
The following list provides the comparison rules for date data:
The current time is greater than the past time. For example, the date value of May 1, 2018 is greater than the date value of May 1, 2012.
The time in the afternoon is greater than that in the morning. For example, the date and time value of 15:30:00 on February 2, 2019 is greater than the date and time value of 10:30:00 on February 2, 2019.
The time in the morning is greater than the time of the previous day. For example, the date and time value of 02:30:00 on March 5, 2019 is greater than the date and time value of 23:30:00 on March 4, 2019.