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What's the difference between session.Merge and session.SaveOrUpdate?
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This is from section 10.7. Automatic state detection of the Hibernate Reference Documentation:
saveOrUpdate() does the following:
if the object is already persistent in this session, do nothing
if another object associated with the s...
How do you rename a MongoDB database?
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What would a “frozen dict” be?
...lgorithmic performance.
if self._hash is None:
hash_ = 0
for pair in self.items():
hash_ ^= hash(pair)
self._hash = hash_
return self._hash
It should work great:
>>> x = FrozenDict(a=1, b=2)
>>> y = FrozenDict(a...
Code signing certificate for open-source projects?
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Wayne Ellery
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answered Jul 24 '09 at 14:32
MnementhMnementh
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Difference between Property and Field in C# 3.0+
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C# LINQ find duplicates in List
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The easiest way to solve the problem is to group the elements based on their value, and then pi...
What's the correct way to sort Python `import x` and `from x import y` statements?
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edited Apr 10 '17 at 11:44
tleb
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ans...
Android DialogFragment vs Dialog
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answered Jun 14 '13 at 23:27
TobrunTobrun
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How to prevent multiple instances of an Activity when it is launched with different Intents
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I'm just going to explain why it fails, and how to reproduce this bug programmatically so you c...
What are the respective advantages/limitations of Amazon RDS vs. EC2 with MySQL? [closed]
...swer!
In short: EC2 will provide maximum performance if you go with a RAID0 EBS. Doing RAID0 EBS requires a pretty significant amount of maintenance overhead, for example:
http://alestic.com/2009/06/ec2-ebs-raid
http://alestic.com/2009/09/ec2-consistent-snapshot
EC2 without RAID0 EBS will provid...