On 3 January 2015 at 00:12, J Decker <d3c...@gmail.com> wrote: > Okay... > https://www.sqlite.org/lang_datefunc.html > > https://www.sqlite.org/datatype3.html /* lists DateTime as a distinct type > */
Could you point out where exactly > > I understand it's kept as a string... and there's no internal functions for > this... but wasn't there a discussion to add hex and octal etc support for > number conversions? 1.2Meg of stuff and you can't have a few 30 line > functions to convert to gregorian calander day/second of day for > calculation(julian day and second tick); amazing. You have already quoted https://www.sqlite.org/lang_datefunc.htm > > ---------- > Since on the datefunc page > > Formats 2 through 10 may be optionally followed by a timezone indicator of > the form "*[+-]HH:MM*" or just "*Z*". The date and time functions use UTC > or "zulu" time internally, and so the "Z" suffix is a no-op. Any non-zero > "HH:MM" suffix is subtracted from the indicated date and time in order to > compute zulu time. For example, all of the following time strings are > equivalent: > > 2013-10-07 08:23:19.120 > 2013-10-07T08:23:19.120Z > 2013-10-07 04:23:19.120-04:00 > 2456572.84952685 > > Defines equivalency... I would have assumed that inequalities could also be > done. There is no datetime type - the value is stored as string, real or integer. The datetime functions will convert strings, reals or integers to a datetime value, which can be compared; for equivalence or inequality. > > > And since 'formats supported' are specified, one would assume that datetime > columns with supported strings would work with at least =, >= <=, <, >, != There is no datetime type; compare the columns using the datetime functions. I.e datetime( col1) < datetime( col2 )... If you don't use the datetime functions, then columns containing datetime STRINGS will be compared using the text collation specified. Regards, Simon > _______________________________________________ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users
