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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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Entity Framework. Delete all rows in table
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var all = from c in dataDb.Table select c;
dataDb.Table.RemoveRange(all);
dataDb.SaveChanges();
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follo...
Lock Escalation - What's happening here?
...mparing this value before and after running the main part of your script:
SELECT lock_escalation_desc FROM sys.tables WHERE name='yourtablename'
In my case, altering table to drop or add a constraint doesn't seem to modify this value.
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How to enter a multi-line command
...e grave accent (backtick):
Get-ChildItem -Recurse `
-Filter *.jpg `
| Select LastWriteTime
However, this is only ever necessary in such cases as shown above. Usually you get automatic line continuation when a command cannot syntactically be complete at that point. This includes starting a new...
How to call an async method from a getter or setter?
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You can use Task like this :
public int SelectedTab
{
get => selected_tab;
set
{
selected_tab = value;
new Task(async () =>
{
await newTab.ScaleTo...
Indent multiple lines quickly in vi
...n a row, such as fixing some tags pasted in to an XML file. Rather than re-select the block in visual mode each time, one can use 'gv' to reuse the last visual block. Reference superuser.com/questions/220666/…
– David Mann
May 9 '14 at 3:37
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Search for all files in project containing the text 'querystring' in Eclipse
...u at the top, click File..., input your search string, and make sure that 'Selected Resources' or 'Enclosing Projects' is selected, then hit search. The alternative way to open the window is with Ctrl-H. This may depend on your keyboard accelerator configuration.
More details: http://www.ehow.com/h...
jQuery 'input' event
...by itself will not trigger the event, but Ctrl-V to paste some text will), selecting an auto-completion option, Linux-style middle-click paste, drag-and-drop, and lots of other things.
See this page and the comments on this answer for more details.
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Set Locale programmatically
...haredPrefUtils.saveLocale(locale); // optional - Helper method to save the selected language to SharedPreferences in case you might need to attach to activity context (you will need to code this)
Resources resources = getResources();
Configuration configuration = resources.getConfiguration()...
How to make a always full screen?
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@AdamHarte Why it doesn't work if you remove the 'html' selector from the CSS? → body { height: 100%; margin: 0; }
– Alex Prut
Apr 12 '14 at 10:14
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