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Swapping column values in MySQL
....02 sec)
mysql> update z set c1 = c1 ^ c2, c2 = c1 ^ c2, c1 = c1 ^ c2;
ERROR 1264 (22003): Out of range value for column 'c1' at row 2
mysql> update z set c1 = c1 + c2, c2 = c1 - c2, c1 = c1 - c2;
ERROR 1264 (22003): Out of range value for column 'c1' at row 3
mysql> select * from z;
+---...
How to wait for a keypress in R?
...hod is that if you type something that is not a number, it will display an error.
print ("Press [enter] to continue")
number <- scan(n=1)
Wrapping into a function:
readkey <- function()
{
cat("[press [enter] to continue]")
number <- scan(n=1)
}
Method 3
Imagine you want to wa...
Android Studio: Javadoc is empty on hover
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This hover works but can conflict with showing an error on the same line and can be difficult to get get the desired one open. Eclipse did the hovering javadoc and errors so much better!
– Gary Bak
Aug 7 '15 at 18:47
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master branch and 'origin/master' have diverged, how to 'undiverge' branches'?
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This yields an error: error: Failed to merge in the changes. Patch failed at 0024 Request and Response models
– IgorGanapolsky
Aug 22 '18 at 15:07
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Comparing arrays in JUnit assertions, concise built-in way?
... but all you get when it fails for different length is java.lang.AssertionError: array lengths differed, expected.length=6 actual.length=7. As most JUnit failure messages it's not so helpful...I advise using some assertion framework
– user1075613
Nov 30 '18 at...
Eclipse HotKey: how to switch between tabs?
...'t take me to the far left one... Also, I'm getting really annoying "false errors" (errors are displayed but everything compiles perfectly) since the update. Hope you don't get that too!
– Arthur
Mar 11 '12 at 20:51
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How to sync with a remote Git repository?
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adding worked, pulling didn't :(, I got an error related to https: error: Protocol https not supported or disabled in libcurl while accessing github.com/mrdoob/three.js.git/info/refs fatal: HTTP request failed Hints ?
– George Profenza
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A good solution for await in try/catch/finally?
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If you need to use async error handlers, I'd recommend something like this:
Exception exception = null;
try
{
...
}
catch (Exception ex)
{
exception = ex;
}
if (exception != null)
{
...
}
The problem with synchronously blocking on async cod...
callback to handle completion of pipe
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Here's a solution that handles errors in requests and calls a callback after the file is written:
request(opts)
.on('error', function(err){ return callback(err)})
.pipe(fs.createWriteStream(filename))
.on('finish', function (err) {
ret...
VB.NET - How to move to next item a For Each Loop?
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When I tried Continue For it Failed, I got a compiler error. While doing this, I discovered 'Resume':
For Each I As Item In Items
If I = x Then
'Move to next item
Resume Next
End If
'Do something
Next
Note: I am using VBA here.
...