Hi there,
Thanks, I am fully with the notion of back-ups and data management, specifically, metadata (a topic we pushed for over a decade but it has no good uptake, still). While some QGIS users might still try to learn Danish terms (a peculiar language that is just spoken by some ~60mio people or so; sorry to say it), I sincerely hope the next version of QGIS is in Chinese instead, and thus serves many billions. OpenSource is well served then. The EU-centrism ain’t so funny, in GIS, R and beyond. Equally serious, I do not believe that QGIS, overall, is so powerful on the actual database side of things. If possible here, I would highly appreciate to learn specific and powerful links on HOW QGIS relates and works with databases, and what the underlying concept, idea and visions are ? Thanks in advance for that. In addition, in case you know of latest ISO metadata (XML I assume; I see virus filter issues in that) approaches to QGIS and tabs and packages I would die for learning about it for sure, too. It’s so much needed. Envision Chinese GIS data all available and documented with metadata open source for everybody to use… why not ? Thanks in advance; very best regards Falk Huettmann Falk Huettmann PhD, Associate Professor -EWHALE lab- Biology and Wildlife Dept., Institute of Arctic Biology 419 IRVING I, University of Alaska Fairbanks AK 99775-7000 USA Email [email protected] Phone 907 474 7882 Fax 907 474 6716 *From:* Qgis-user [mailto:[email protected]] *On Behalf Of *Bo Victor Thomsen *Sent:* Thursday, July 14, 2016 9:04 PM *To:* [email protected] *Subject:* Re: [Qgis-user] Backing up GIS Data As an old GIS database dog - - It's a wise and smart decision to use Postgres/PostGis for storing and using spatial data. - As for backup: Do *exactly* as Jeff writes :-). "Point in time" backups are nice, but not the best backup solution for Postgres databases. Jeff's solution is. Regards Bo Victor Thomsen AestasGIS Denmark Den 14/07/16 kl. 21:26 skrev Jeff McKenna: Hi Tyler, This is a good question, and an important one, and don't feel bad about posting it here - likely we can all learn from this discussion, as it definitely involves the whole QGIS community. I have quite a lot of experience backing up databases, especially PostgreSQL/PostGIS databases. I can tell you that it is for sure important to run "pg_dump" as a daily backup (in addition to your whole server image/backup) - that pg_dump has saved me and my clients hundreds of times, and it is very portable and easy to access (as opposed to your whole image/machine backup). One very important point (that's I've learned from experience) when using pg_dump is to *always* use the custom binary/compressed output format (the "--format=c" commandline switch for pg_dump). I've had terrible times with the other output format types, especially when restoring a database from a Windows server to a Linux server etc (with hardcoded paths inside the backup). I live by that format, swear by it, from experience, moving so many client databases from one machine to another. Another mailing list to keep in mind is the PostGIS mailing list, where these backup topics also pop up from time to time - and discussions are more geo-related, so are very helpful, than just the generic PostgreSQL mailing list. So, definitely implement an additional backup process using pg_dump (you can experiment restoring it through the "pg_restore" command), you won't regret the effort spent. Happy QGIS-ing, -jeff
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