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Django URL Redirect
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@felix001 btw, HTTP 500 usually (as in 99% of the times) means you have a syntax error, take a look at this - docs.djangoproject.com/en/dev/howto/error-reporting/…. When a site is under development it is always good to have DEBUG = True or at least set the ADMINS option - docs.dj...
Why is LINQ JOIN so much faster than linking with WHERE?
... of all the tables, then filters the rows that satisfy the condition. This means the Where condition is evaluated for each combination of rows (n1 * n2 * n3 * n4)
The Join operator takes the rows from the first tables, then takes only the rows with a matching key from the second table, then only the...
Intermittent log4net RollingFileAppender locked file issue
... <appender /> element. There is some performance impact because this means that log4net will lock the file, write to it, and unlock it for each write operation (as opposed to the default behavior, which acquires and holds onto the lock for a long time).
One implication of the default behavior...
Bundle ID Suffix? What is it?
I'm new to the iPhone submission process. Apple asks for the Bundle ID Suffix. What is this? Not sure what to put here and what the significance of it is.
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Finding duplicate values in a SQL table
...e all non-aggregated columns in the GROUP BY but this has changed with the idea of "functional dependency":
In relational database theory, a functional dependency is a constraint between two sets of attributes in a relation from a database. In other words, functional dependency is a constraint t...
How to redirect output of an entire shell script within the script itself?
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Did you mean main_function >> /var/log/my_uber_script.log 2>&1
– Felipe Alvarez
Feb 7 '12 at 5:02
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Removing packages installed with go get
...ore I realize how terrible it is at doing very 'simple', 'native' stuff. I mean, how can you have a command for installing but no command to remove. How???
– Alf Moh
Jun 12 at 21:43
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Selectively revert or checkout changes to a file in Git?
...hat any arguments that come after it are to be interpreted literally. This means that you wouldn't have to add ./ before any filename that starts with a minus sign, if the filename comes after --.
– zrajm
Jan 29 '14 at 13:12
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Multiple columns index when using the declarative ORM extension of sqlalchemy
...rue flag works normally:
class A(Base):
__tablename__ = 'table_A'
id = Column(Integer, primary_key=True)
a = Column(String(32), index=True)
b = Column(String(32), index=True)
if you'd like a composite index, again Table is present here as usual you just don't have to declare it, e...
Ukkonen's suffix tree algorithm in plain English
...rom the root node (on the left) to a leaf,
and labeling it as [0,#], which means the edge represents the
substring starting at position 0 and ending at the current end. I
use the symbol # to mean the current end, which is at position 1
(right after a).
So we have an initial tree, which looks like t...