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How can I easily view the contents of a datatable or dataview in the immediate window
... Debug.Write(Environment.NewLine);
}
}
#endregion
I then I will call one of the above functions in the immediate window and the results will appear there as well.
For example if I want to see the contents of a variable 'myDataset' I will call printTbl(myDataset). After hitting enter, the resul...
Using module 'subprocess' with timeout
... def __init__(self, cmd):
self.cmd = cmd
self.process = None
def run(self, timeout):
def target():
print 'Thread started'
self.process = subprocess.Popen(self.cmd, shell=True)
self.process.communicate()
print 'Thread fini...
Differences between utf8 and latin1
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In latin1 each character is exactly one byte long. In utf8 a character can consist of more than one byte. Consequently utf8 has more characters than latin1 (and the characters they do have in common aren't necessarily represented by the same byte/bytesequence)....
Quick Way to Implement Dictionary in C
One of the things which I miss while writing programs in C is a dictionary data structure. What's the most convenient way to implement one in C? I am not looking for performance, but ease of coding it from scratch. I don't want it to be generic either -- something like string->int will do. But I do ...
How can I define a composite primary key in SQL?
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Just for clarification: a table can have at most one primary key. A primary key consists of one or more columns (from that table). If a primary key consists of two or more columns it is called a composite primary key. It is defined as follows:
CREATE TABLE voting (
Quest...
Difference between a user and a schema in Oracle?
...thing. Of course, the confusion stems partly from the fact that there is a one-to-one correspondence between USER and SCHEMA, and a user's schema shares its name.
– Mahesh
Apr 8 '17 at 13:03
...
What is the difference between “Class.forName()” and “Class.forName().newInstance()”?
...her good examples: they use dynamic runtime loading to load and create components they don't know anything before the runtime.
Actually, if you want to go further, have a look at Ted Neward paper Understanding Class.forName() that I was paraphrasing in the paragraph just above.
EDIT (answering a q...
TypeError: got multiple values for argument
...nd width arguments).
This is easy to see in the example, but of course if one mixes up the arguments at call, it may not be easy to debug:
# misplaced height and width
color_box(20, 30, color="green")
Here, color is assigned 20, then args=[30] and color is again assigned "green".
...
Rails extending ActiveRecord::Base
I've done some reading about how to extend ActiveRecord:Base class so my models would have some special methods. What is the easy way to extend it (step by step tutorial)?
...
How to empty a redis database?
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tldr: flushdb clears one database and flushall clears all databases
Clear CURRENT
Delete default or currently selected database (usually `0) with
redis-cli flushdb
Clear SPECIFIC
Delete specific redis database with (e.g. 8 as my target dat...