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How to serialize SqlAlchemy result to JSON?
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A flat implementation
You could use something like this:
from sqlalchemy.ext.declarative import DeclarativeMeta
class AlchemyEncoder(json.JSONEncoder):
def default(self, obj):
if isinstance(obj.__class__, DeclarativeMeta):
# an SQLAlchemy c...
Is the ternary operator faster than an “if” condition in Java [duplicate]
...se if conditions all the time. I rarely ever use the ternary operator. For instance:
9 Answers
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Asterisk in function call
I'm using itertools.chain to "flatten" a list of lists in this fashion:
3 Answers
3
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{version} wildcard in MVC4 Bundle
In MVC 4 we have bundles. While defining the bundles we can use wildcards like * for all files in a folder.
3 Answers
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How does strtok() split the string into tokens in C?
Please explain to me the working of strtok() function. The manual says it breaks the string into tokens. I am unable to understand from the manual what it actually does.
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C++ where to initialize static const
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Anywhere in one compilation unit (usually a .cpp file) would do:
foo.h
class foo {
static const string s; // Can never be initialized here.
static const char* cs; // Same with C strings.
static const int i = 3; // Integ...
How to make a Java thread wait for another thread's output?
I'm making a Java application with an application-logic-thread and a database-access-thread.
Both of them persist for the entire lifetime of the application and both need to be running at the same time (one talks to the server, one talks to the user; when the app is fully started, I need both of t...
How do I turn off Oracle password expiration?
I'm using Oracle for development. The password for a bootstrap account that I always use to rebuild my database has expired.
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Database design for a survey [closed]
I need to create a survey where answers are stored in a database. I'm just wondering what would be the best way to implement this in the database, specifically the tables required. The survey contains different types of questions. For example: text fields for comments, multiple choice questions, and...
How to design a database for User Defined Fields?
... the data distribution and access patterns described.
Pros:
Because you indicate that some UDFs
have values for a small portion of
the overall data set, a separate
table would give you the best
performance because that table will
be only as large as it needs to be
to support the UDF. The same hol...