[Qgis-user] OS Mastermap, SQL Server and QGIS

[Steven Campbell]

Hi

 

Does anyone else have significant time delays when trying to open large
datasets from a SQL database in QGIS? I have uploaded my Ordnance survey
MasterMap data (coverage is the size of an average English County) and
although the initial connection to identify the table is very quick, the
loading of the table (even when zoomed in to a very big scale (i.e.
1:100) it takes a very long time to open. Once opened the speed is very
quick, but getting it to open takes a lot of patience as the application
appears to hang.

 

On a slightly related topic, if I have connected to one MSSQL database,
QGIS then struggles if I try to connect to an additional database, again
it just appears to hang for a considerable period of time (30 minutes or
more at times), it seems odd especially as the connection to the first
SQL database is almost instant....

 

Any suggestions as to how I can improve this speed would be greatly
appreciated.

 

Thanks

 

Steve Campbell

GIS Manager

Corporate Strategy and Communications

Borough of Poole | Civic Centre | Poole BH15 2RU

Tel: 01202 633 362

Email: s.campbell at poole.gov.uk

Website:www.boroughofpoole.com <http://www.boroughofpoole.com/> 

Think Green! Please Recycle

 



DISCLAIMER:
This email and any files transmitted with it may be confidential, legally privileged and protected in law and are intended solely for the use of the individual to whom it is addressed. The copyright in all documentation is the property of the Borough of Poole and this email and any documentation must not be copied or used other than as strictly necessary for the purpose of this email, without prior written consent which may be subject to conditions. Any view or opinions presented are solely those of the author and do not necessarily represent those of the Borough of Poole. The Borough of Poole reserves the right to inspect incoming and outgoing emails. If you have received this email in error please contact the sender by return and confirm that its contents have been destroyed. Telephone enquiries should be directed to the Borough switchboard on 01202 633633.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.osgeo.org/pipermail/qgis-user/attachments/20130628/3bf5d7a0/attachment.html>