Items tagged databases in 2013
Is there an open source (or freely accessible) database of geofence coordinates for common places, such as cities or national parks?
Take a look at Flickr’s openly licensed shapefiles:[... 59 words]
PostgreSQL: How can I store images in a database? What existing products makes it easy for a user to upload photos into a general database?
As a general rule, it’s a bad idea to store images in a database. This is due to the large amount of space they take up, which can affect database read performance and will greatly increases the size of your backups, making them both take longer and cost more to store.[... 187 words]
You may find this article useful (despite the list-o-matic name): 10 Easy Steps to a Complete Understanding of SQL—I’ve been using SQL for years but I found that some of the concepts explained there helped firm up my fundamental understanding of how to use it effectively.[... 64 words]
On the right setup, PostgreSQL can handle petabytes. There are also commercial vendors such as Greenplum that offer data warehouse solutions built on a modified version of PostgreSQL.[... 80 words]
The principle reason they switched to a schemaless DB was to work around the challenges of having to make schemes changes in MySQL, which can lock the table and take hours if bit days to complete in large tables.[... 115 words]
As a general rule it’s not a good idea to allow mobile devices to connect directly to a server-side database, as it’s an invitation to hackers to figure out what’s going on and then connect to the database themselves for nefarious reasons.[... 105 words]
You should store the exact format that was entered by the user.[... 95 words]
If you’re only dealing with 60 records there’s no need to add a full database. I’ve actually hand coded a 50 record JSON file before and it was fine- use an editor with good JSON support (I like Sublime Text 2) and it’s pretty easy to hand write.[... 103 words]
This is a surprisingly complicated question. The first thing you might want to ask yourself is “what’s a country”—how do you deal with places on this List of states with limited recognition for example?[... 182 words]