On Fri, Sep 14, 2007 at 05:45:07PM +0300, Panagiotis Pediaditis wrote: > Well the problem is I am working on rdf query engine for persistent RDF > data. The data is stored/structured in a specific way in the database. > When i perform updates in parallel, because there are cross table > dependencies, I end up with inconsistencies, For example One transaction > reads to see if there is a resource so as to add a property where it is > a subject. Then an other transaction deletes the resource after the > first has decided that the resource is there but before it added the > property. Sounds like what you need is serializable transactions. Then the server will tell you if something conflicts. Have a ncie day, -- Martijn van Oosterhout <kleptog@xxxxxxxxx> http://svana.org/kleptog/ > From each according to his ability. To each according to his ability to litigate.
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