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Visual Studio loading symbols
...o there's a whole lot of IIS underneath me that can fail. Normally just deselecting Microsoft (and all remote) symbol servers as a source for data will work.
– ebyrob
Apr 14 at 12:18
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How do I specify unique constraint for multiple columns in MySQL?
... For those people using MySQL workbench: go to the Indexes tab and select UNIQUE as your type. Give your index a name and check the appropriate columns under the section "Index Columns"
– Pakman
Jun 3 '13 at 20:42
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retrieve links from web page using python and BeautifulSoup [closed]
...re anything not purely Python isn't allowed.
lxml.html also supports CSS3 selectors so this sort of thing is trivial.
An example with lxml and xpath would look like this:
import urllib
import lxml.html
connection = urllib.urlopen('http://www.nytimes.com')
dom = lxml.html.fromstring(connection.r...
MySQL - UPDATE multiple rows with different values in one query
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UPDATE Table1 SET col1= col2 FROM (SELECT col2, col3 FROM Table2) as newTbl WHERE col4= col3
Here col4 & col1 are in Table1. col2 & col3 are in Table2 I Am trying to update each col1 where col4 = col3 different value for each row
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Hash String via SHA-256 in Java
...hich adds quite a few new MessageDigests compared to the relatively paltry selection available in the JDK.
– mjuarez
Jul 27 '14 at 9:51
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How to fix: “HAX is not working and emulator runs in emulation mode”
...result from the menu Tools ➞ SDK Manager, and then on the SDK Tools tab, select the checkbox for Intel x86 Emulator Accelerator (HAXM installer), and click Ok.
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How do I check if an HTML element is empty using jQuery?
...or more info see http://api.jquery.com/is/ and http://api.jquery.com/empty-selector/
EDIT:
As some have pointed, the browser interpretation of an empty element can vary. If you would like to ignore invisible elements such as spaces and line breaks and make the implementation more consistent you ca...
Is the SQL WHERE clause short-circuit evaluated?
...y use this for optional parameters. Is this the same as short circuiting?
SELECT [blah]
FROM Emp
WHERE ((@EmpID = -1) OR (@EmpID = EmpID))
This gives me the option to pass in -1 or whatever to account for optional checking of an attribute. Sometimes this involves joining on multiple tables, ...
Visual Studio debugger - Displaying integer values in Hex
...log.
Break after setting the variable.
Right mouse click the variable and select "Add Watch" or "QuickWatch"
Right mouse click the line in the Watch dialogue.
Uncheck "Hexadecimal Display"
The display will now be in decimal.
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How to Empty Caches and Clean All Targets Xcode 4 and later
...option key, now the option "Clean" will change to "Clean Build Folder ..." select that option.
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