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PostgreSQL naming conventions
...convention is:
SQL keywords: UPPER CASE
names (identifiers): lower_case_with_underscores
For example:
UPDATE my_table SET name = 5;
This is not written in stone, but the bit about identifiers in lower case is highly recommended, IMO. Postgresql treats identifiers case insensitively when not q...
How do I ignore files in Subversion?
..., supports 3 different ways of specifying file patterns. Here's a summary with examples:
1 - Runtime Configuration Area - global-ignores option:
This is a client-side only setting, so your global-ignores list won't be shared by other users, and it applies to all repos you checkout onto your compu...
Declare slice or make slice?
...
In addition to fabriziom's answer, you can see more examples at "Go Slices: usage and internals", where a use for []int is mentioned:
Since the zero value of a slice (nil) acts like a zero-length slice, you can declare a slice ...
How to set breakpoints on future shared libraries with a command flag
...ing pending breakpoints
And so set breakpoint pending on does the trick; it is used in cmds.gdb like e.g.
set breakpoint pending on
break <source file name>:<line number>
share
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imp...
How do I negate a test with regular expressions in a bash script?
... 4.0.35(1)-release (x86_64-suse-linux-gnu), I would like to negate a test with Regular Expressions. For example, I would like to conditionally add a path to the PATH variable, if the path is not already there, as in:
...
Cross-platform way of getting temp directory in Python
...
That would be the tempfile module.
It has functions to get the temporary directory, and also has some shortcuts to create temporary files and directories in it, either named or unnamed.
Example:
import tempfile
print tempfile.gettempdir() # prints the curre...
Why does this async action hang?
...-tier .Net 4.5 application calling a method using C#'s new async and await keywords that just hangs and I can't see why.
...
Get image data url in JavaScript?
I have a regular HTML page with some images (just regular <img /> HTML tags). I'd like to get their content, base64 encoded preferably, without the need to redownload the image (ie. it's already loaded by the browser, so now I want the content).
...
Sample settings.xml for maven
...
Here's the stock "settings.xml" with comments (complete/unchopped file at the bottom)
License:
<?xml version="1.0" encoding="UTF-8"?>
<!--
Licensed to the Apache Software Foundation (ASF) under one
or more contributor license agreements. See the N...
DataContractSerializer doesn't call my constructor?
...DataContractSerializer (like BinaryFormatter) doesn't use any constructor. It creates the object as empty memory.
For example:
Type type = typeof(Customer);
object obj = System.Runtime.Serialization.
FormatterServices.GetUninitializedObject(type);
The assumption is that the deser...