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PostgreSQL: How to pass parameters from command line?
... can also pass-in the parameters at the psql command-line, or from a batch file. The first statements gather necessary details for connecting to your database.
The final prompt asks for the constraint values, which will be used in the WHERE column IN() clause. Remember to single-quote if strings,...
Memcached下一站：HandlerSocket！ - 更多技术 - 清泛网 - 专注C/C++及内核技术
..._threads_wr = 1
# the number of worker threads (for write requests)
open_files_limit = 65535
# to allow handlersocket accept many concurrent
# connections, make open_files_limit as large as
# possible.
此外，InnoDB的innodb_buffer_pool_size，或MyISAM的key_buffy_size等关系到缓存索...
Android LinearLayout Gradient Background
...
In XML Drawable File:
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item>
<shape>
<gradient android:angle="90"
...
Is there a simple way to convert C++ enum to string?
.../>
<Enumeration id="_3" name="MyEnum" context="_1" location="f0:1" file="f0" line="1">
<EnumValue name="FOO" init="0"/>
<EnumValue name="BAR" init="80"/>
</Enumeration>
<File id="f0" name="my_enum.h"/>
</GCC_XML>
You could use any language you p...
Alternate output format for psql
... adding it to .psqlrc in your home folder and restarting psql. Look under 'Files' section in the psql doc for more info.
~/.psqlrc
\x auto
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How do I use pagination with Django class based generic ListViews?
...se_list.html; which will look into your templates folder for that path and file)
context_object_name = "car_list" #default is object_list as well as model's_verbose_name_list and/or model's_verbose_name_plural_list, if defined in the model's inner Meta class
paginate_by = 10 #and that's ...
What is your single most favorite command-line trick using Bash? [closed]
...
Renaming/moving files with suffixes quickly:
cp /home/foo/realllylongname.cpp{,-old}
This expands to:
cp /home/foo/realllylongname.cpp /home/foo/realllylongname.cpp-old
...
Should IBOutlets be strong or weak under ARC?
...clared properties. Outlets should generally be weak, except for those from File’s Owner to top-level objects in a nib file (or, in iOS, a storyboard scene) which should be strong. Outlets that you create will therefore typically be weak by default, because:
Outlets that you create to, for ...
Selecting empty text input using jQuery
...rom DOM then such selector WILL NOT WORK!
// For example input with type="file" and file does not selected.
// It's prefer to use "filter()" method.
// Thanks to @AaronLS
$('input:text[value=""]');
Working Demo
code from the demo
jQuery
$(function() {
$('#button').click(function() {
v...
Generating an Excel file in ASP.NET [closed]
...odebehind) that will allow a user to get data returned to them as an Excel file, which I will generate based on database data. While there are several ways of doing this, each has its own drawbacks. How would you return the data? I'm looking for something that's as clean and straightforward as ...