On 13/04/15 11:08, Michael Cheung wrote: > hi, all; > > I am new here. And I need some suggestion. > > I have many similar database to store data for every customer. > Structure of database is almost the same. > As I use same application to control all these data, so I can only use > one database user to connect to these database. > And I have no needs to query table for different customer together. > > I wonder which I should use, different shema or different database to store data? > > I 'd like to know the advantage and disadvantage for using schema or database. If as you say access to the database is via a single application database user, it will probably make more sense to use multiple schemas rather than multiple databases. Keeping everything in one database will simplify administration (e.g. making backups - ypu'll just need to dump the one database rather than looping through a variable number) and will make life easier if you ever need to do some kind of query involving multiple customers. There will also be less overhead when adding a new schema vs adding a new database. Regards Ian Barwick -- Ian Barwick http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Training & Services -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general