Hello, On 25/12/2010 18:08, Sylvain Pointeau wrote:
> However there is a little mistake in your documentation > std::vector<int>::iterator pos; > for(; pos != valsOut.end(); ++pos) > it should be: > > for(pos = valsOut.begin(); pos != valsOut.end(); ++pos) Thank you for catching it. Just fixed in the repo: http://soci.git.sourceforge.net/git/gitweb.cgi?p=soci/soci;a=commit;h=2a15cc885ff4a5c2807fb2606919e9bb3345eaf7 > and what is the purpose of the "valsOut.resize(BATCH_SIZE) ? As explained in the documentation: "Each call to fetch() can potentially resize the vector to a size less than its initial size - how often this happens depends on the underlying database implementation. This explains why the resize(BATCH_SIZE) operation is needed - it is there to ensure that each time the fetch() is called, the vector is ready to accept the next bunch of values. Without this operation, the vector might be getting smaller with subsequent iterations of the loop, forcing more iterations to be performed (because all rows will be read anyway), than really needed." Regards, -- Maciej Sobczak * www.msobczak.com * www.inspirel.com ------------------------------------------------------------------------------ Learn how Oracle Real Application Clusters (RAC) One Node allows customers to consolidate database storage, standardize their database environment, and, should the need arise, upgrade to a full multi-node Oracle RAC database without downtime or disruption http://p.sf.net/sfu/oracle-sfdevnl _______________________________________________ Soci-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/soci-users
