Timestamps Timestamp literals have the general form: "YYYY-MM-DD hh:mm:ss.fff" Notes: • In DQL expressions, timestamp values should be enclosed in single or double quotes. • All time and date elements except for the year can be omitted from right-to-left if the preceding separator character (‘.’, ‘:’, or ‘-‘) is also eliminated. • When a timestamp value consists of a year only, the enclosing quotes can be omitted. • Omitted time components default to 0; omitted date components default to 1.