when concurrency insert violate the unique constraints , they block each
other , i test this in oracle10g, has the same behavour. I think this
may be reasonable because the uqniue check must be the seriazable
check .
for resolve this problem , i do the unique check in application as
poss
wyx6...@sina.com wrote:
> after shaming , I think i should pick out some my points:
> the unique constraints actualy kill concurrency write transaction when
> concurrency insert violate the unique constraints , they block each
> other , i test this in oracle10g, has the same behavour. I think this
2010/2/2 :
> the unique constraints actualy kill concurrency write transaction when
> concurrency insert violate the unique constraints , they block each other ,
> i test this in oracle10g, has the same behavour. I think this may be
> reasonable because the uqniue check must be the seriazable ch
