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Why use the 'ref' keyword when passing an object?
...
Pass a ref if you want to change what the object is:
TestRef t = new TestRef();
t.Something = "Foo";
DoSomething(ref t);
void DoSomething(ref TestRef t)
{
t = new TestRef();
t.Something = "Not just a changed t, but a completely different TestRef object";
}
After calling DoSomething, ...
Is it possible to specify the schema when connecting to postgres with JDBC?
...se command line.
Update
As of JDBC v9.4 you can specify the url with the new currentSchema parameter like so:
jdbc:postgresql://localhost:5432/mydatabase?currentSchema=myschema
Appears based on an earlier patch:
http://web.archive.org/web/20141025044151/http://postgresql.1045698.n5.nabble.com/...
How to change the docker image installation directory?
...min/systemd explains how to configure Docker with systemd, which works for newer linux distribution such as Ubuntu 16.04.
– Joseph Hui
Jun 26 '16 at 10:43
6
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git: updates were rejected because the remote contains work that you do not have locally
...
Wow...I never knew that. But it makes a lot of sense now. The master branch was also incorrect, so your answer clears my whole question. I'm still a bit new to git. Thanks a lot for telling me the difference between those two!
...
Is there a way to view past mysql queries with phpmyadmin?
...lick on the 'sql' icon just underneath the 'phpMyAdmin' logo, it'll open a new window. In the new window, just click on the 'history' tab.
That will give you the last twenty or so SQL operations.
share
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How to serialize SqlAlchemy result to JSON?
...ou could use:
from sqlalchemy.ext.declarative import DeclarativeMeta
def new_alchemy_encoder():
_visited_objs = []
class AlchemyEncoder(json.JSONEncoder):
def default(self, obj):
if isinstance(obj.__class__, DeclarativeMeta):
# don't re-visit self
...
Is there a good Valgrind substitute for Windows?
...tion OSS or free tools here.
1. MemCheck:
Dr. Memory. It is a relatively new tool, works very well on Windows 7. My favorite feature is that it groups the same leaks' allocation stacks in the report.
http://code.google.com/p/drmemory/
I have also used UMDH( http://support.microsoft.com/kb/268343...
How to quickly check if folder is empty (.NET)?
...
There is a new feature in Directory and DirectoryInfo in .NET 4 that allows them to return an IEnumerable instead of an array, and start returning results before reading all the directory contents.
What's New in the BCL in .NET 4 Beta...
Why an interface can not implement another interface?
...ments means implementation, when interface is meant to declare just to provide interface not for implementation.
A 100% abstract class is functionally equivalent to an interface but it can also have implementation if you wish (in this case it won't remain 100% abstract), so from the JVM's perspecti...
Set HTML5 doctype with XSLT
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