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Why do this() and super() have to be the first statement in a constructor?
...appear first, enforces that constructor bodies are executed in the correct order which would be: Object -> Parent -> Child -> ChildOfChild -> SoOnSoForth
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Bulk insert with SQLAlchemy ORM
...ods, which provide hooks into subsections of the unit of work
process in order to emit Core-level INSERT and UPDATE constructs with
a small degree of ORM-based automation.
The example below illustrates time-based tests for several different
methods of inserting rows, going from the most a...
SQL standard to escape column names?
... SQLite,
'foo' is an SQL string
"foo" is an SQL identifier (column/table/etc)
[foo] is an identifier in MS SQL
`foo` is an identifier in MySQL
For qualified names, the syntax is: "t"."foo" or [t].[foo], etc.
MySQL supports the standard "foo" when the ANSI_QUOTES option is enabled.
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How do I time a method's execution in Java?
...ilt-in class, like Timer t = new Timer(); String s = t.getElapsed(format); etc...
– Ogre Psalm33
Oct 8 '08 at 12:48
18
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Swift native base class or NSObject
...erned about: observers, AOP, test mocking frameworks, analytic frameworks, etc. . and the thing about performance is that 90% of gains come from tuning 10%. . so that's my rationale - opt-in for those 10% cases. I think AOP will be a big deal for iOS enterprise apps, but it could be done using a com...
Using module 'subprocess' with timeout
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I've modified your code a bit in order to be able to pass native Popen kwargs and put it on gist. It is now ready to use multi purpose; gist.github.com/1306188
– kirpit
Nov 9 '11 at 13:07
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What's the best way to store a group of constants that my program uses? [closed]
... various constants that my program uses... string 's, int 's, double 's, etc... What is the best way to store them? I don't think I want an Enum , because the data is not all the same type, and I want to manually set each value. Should I just store them all in an empty class? Or is there a better...
Have nginx access_log and error_log log to STDOUT and STDERR of master process
...y success. Tried to change everything (daemon modes, users, nginx versions etc). It just does not work for me. """open() "/dev/stderr" failed (6: No such device or address)""" (same issues with stdout, but nginx should output to stderr according to docs)
– Ivan Kleshnin
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What's the hardest or most misunderstood aspect of LINQ? [closed]
...alize that many LINQ extension methods such as Single(), SingleOrDefault() etc have overloads that take lambdas.
You can do :
Single(x => x.id == id)
and don't need to say this - which some bad tutorial got me in the habit of doing
Where(x => x.id == id).Single()
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Visual Studio popup: “the operation could not be completed”
...tion_FileName.suo" file?"
Also computer crashing like e.g. power outage etc...
Applies to Update 2 and Update 3 as well as fresh base without any updates...
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