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LINQ Join with Multiple Conditions in On Clause
...tID == x.ProjectID && x.Completed == true)
.DefaultIfEmpty()
select new { t1.ProjectName, t2.TaskName }
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How many threads can a Java VM support?
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I know this question is pretty old but just want to share my findings.
My laptop is able to handle program which spawns 25,000 threads and all those threads write some data in MySql database at regular interval of 2 seconds.
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multiple prints on the same line in Python
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This doesn't work if you have both prints and a time consuming action in between (all in the same function / indentation level). Before the action starts, there is no output at all and after it is finished the output appears as whole
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How do I test a file upload in rails?
...ls 3, Rails 5), which will search your fixtures directory for the file specified and will make it available as a test file for the controller in functional testing. To use it:
1) Put your file to be uploaded in the test in your fixtures/files subdirectory for testing.
2) In your unit test you can ...
Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize
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If someone does not know how to do this - sudo gedit ~/.profile, add the line from the answer there and save the file.
– gotqn
Jul 1 '15 at 13:16
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Tutorials and libraries for OpenGL-ES games on Android [closed]
...ment I had only meant that I could not yet post urls on stackoverflow.com. Now that is no longer a problem I have removed the confusing comment, from my post. Thx for the feedback. Droidnova and the red book are problably the two main sites at which I should do my reading.
– a...
Socket.IO Authentication
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@Alfred that link seems to be dead now :(
– Pro Q
Aug 8 '16 at 4:28
@Alfred's ...
ORA-30926: unable to get a stable set of rows in the source tables
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This is usually caused by duplicates in the query specified in USING clause. This probably means that TABLE_A is a parent table and the same ROWID is returned several times.
You could quickly solve the problem by using a DISTINCT in your query (in fact, if 'Y' is a constant val...
Running a Python script from PHP
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If you want to know the return status of the command and get the entire stdout output you can actually use exec:
$command = 'ls';
exec($command, $out, $status);
$out is an array of all lines. $status is the return status. Very useful for ...
Constantly print Subprocess output while process is running
...d stdout_line
popen.stdout.close()
return_code = popen.wait()
if return_code:
raise subprocess.CalledProcessError(return_code, cmd)
# Example
for path in execute(["locate", "a"]):
print(path, end="")
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