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MySQL - length() vs char_length()
... in two bytes. Or UTF-8, where the number of bytes varies. For example:
select length(_utf8 '€'), char_length(_utf8 '€')
--> 3, 1
As you can see the Euro sign occupies 3 bytes (it's encoded as 0xE282AC in UTF-8) even though it's only one character.
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mysql: see all open connections to a given database?
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That should do the trick for the newest MySQL versions:
SELECT * FROM INFORMATION_SCHEMA.PROCESSLIST WHERE DB = "elstream_development";
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Android ClassNotFoundException: Didn't find class on path
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This following method worked for me
Right click on your project and select properties
The "Properties for " panel will open. From the menu on the left go to Java Build Path -> Order and Export
From the list below uncheck the box next to "Android Dependencies"
Finally clean your project and...
How to run a makefile in Windows?
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If you install Cygwin. Make sure to select make in the installer. You can then run the following command provided you have a Makefile.
make -f Makefile
https://cygwin.com/install.html
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Why does Windows64 use a different calling convention from all other OSes on x86-64?
... RAX (return value) and RCX, RDX, R8, R9 (arg[0..3]) are an understandable selection if you choose four registers for arguments.
I don't know why the AMD64 UN*X ABI chose RDX before RCX.
Choosing six argument registers on x64 - UN*X specific
UN*X, on RISC architectures, has traditionally done argume...
Altering column size in SQL Server
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Select table--> Design--> change value in Data Type shown in following Fig.
Save tables design.
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How do I make a textarea an ACE editor?
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I have a trouble with this method: texting 'SELECT 1 OR 2;' on ace.editor will put 'SELECT 1OR&nbps;2;' to textarea. Can someone tell me what i'm doing wrong?
– alexglue
Apr 1 '14 at 7:08
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Prevent a webpage from navigating away using JavaScript
... or not the user gets the Confirm Navigation prompt.
With the text in the selected answer you see redundant prompts:
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How can I set a website image that will show as preview on Facebook?
...press just scroll down to the bottom of the webpage when in edit mode, and select "featured image" (bottom right side of screen).
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How to stop Visual Studio from “always” checking out solution files?
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From memory, if you use the Tools, Options menu and select the Source Control, Environments panel there should be a few options for configuring the way the IDE interfaces with the version control.
I think some of these options control the checkout on open behaviour.
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