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Using varchar(MAX) vs TEXT on SQL Server
...Full Text Index.
LIKE is simpler to implement and is often suitable for small amounts of data, but it has extremely poor performance with large data due to its inability to use an index.
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Formatting a float to 2 decimal places
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Just in case you're unsure (I was), all of these ways for formatting a float value do provide rounding.
– RenniePet
Nov 12 '17 at 15:03
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Can a Windows batch file determine its own file name?
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%0 returns the way the file was called. If a full path was used, %0 will have that. If you cd into the dir first and execute the batch from there, %0 will usually not have the path info (but you could get that from %cd% in that case)
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HTTP status code for a partial successful request
...s to users. In a post request a XML string is transferred that consists of all the users that should receive that particular message. If any of the users in the list do not exist I give the list of missing users back to the client for further evaluation.
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Calling Objective-C method from C++ member function?
I have a class ( EAGLView ) which calls a member function of a C++ class without problems. Now, the problem is that I need to call in that C++ class a objective-C function [context renderbufferStorage:GL_RENDERBUFFER fromDrawable:(CAEAGLLayer*)self.layer]; which I cannot do in C++ syntax...
What is the difference between self::$bar and static::$bar in PHP?
...keyword. In this case, your Foo class defines a protected static property called $bar. When you use self in the Foo class to refer to the property, you're referencing the same class.
Therefore if you tried to use self::$bar elsewhere in your Foo class but you had a Bar class with a different value ...
How to load/edit/run/save text files (.py) into an IPython notebook cell?
...yfile.py into the current cell
For more magic and help
%lsmagic
list all the other cool cell magic commands.
%COMMAND-NAME?
for help on how to use a certain command. i.e. %run?
Note
Beside the cell magic commands, IPython notebook (now Jupyter notebook) is so cool that it allows you to ...
Show data on mouseover of circle
...u don't need the mousehandler. The code would be something like
vis.selectAll("circle")
.data(datafiltered).enter().append("svg:circle")
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.append("svg:title")
.text(function(d) { return d.x; });
If you want fancier tooltips, you could use tipsy for example. See here for an example....
Why JSF saves the state of UI components on server?
..., will the state of components keep on accumulating on the server?
Technically, that depends on the implementation. If you're talking about page-to-page navigation (just GET requests) then Mojarra won't save anything in session. If they are however POST requests (forms with commandlinks/buttons), t...
How to set the JDK Netbeans runs on?
...\netbeans.conf
Change the following line to point it where your java installation is :
netbeans_jdkhome="C:\Program Files\Java\jdk1.7xxxxx"
You may need Administrator privileges to edit netbeans.conf
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