大约有 47,000 项符合查询结果（耗时：0.0688秒） [XML]
You have already activated X, but your Gemfile requires Y
...
Using bundle exec is the right way to do this.
Basically what's happening is that you've updated rake to 0.9.2 which now conflicts with the version specified in your Gemfile. Previously the latest version of rake you had matched the version in your Gemfile, so you didn't get a...
Java concurrency: Countdown latch vs Cyclic barrier
...ble task which is run once the common barrier condition is met.
It also allows you to get the number of clients waiting at the barrier and the number required to trigger the barrier. Once triggered the barrier is reset and can be used again.
For simple use cases - services starting etc... a C...
Working with $scope.$emit and $scope.$on
...
First of all, parent-child scope relation does matter. You have two possibilities to emit some event:
$broadcast -- dispatches the event downwards to all child scopes,
$emit -- dispatches the event upwards through the scope hierarch...
Compiling C++ on remote Linux machine - “clock skew detected” warning
I'm connected to my university's small Linux cluster via PuTTY and WinSCP, transferring files using the latter and compiling and running them with the former. My work so far has been performed in the university's labs, but today I have been doing some work at home that generated an interesting warn...
How to use IntelliJ IDEA to find all unused code?
When I am in a .java file the unused code is usually grayed out or has a green underline saying this code will probably (probably because of some weird JNI/Reflection corner cases) be unused. But I have this project with thousands of Java files and I want to find ALL INSTANCES of such probable-unuse...
Convert all strings in a list to int
In Python, I want to convert all strings in a list to integers.
4 Answers
4
...
How to change identity column values programmatically?
...Y,
X VARCHAR(10)
)
INSERT INTO Test
OUTPUT INSERTED.*
SELECT 'Foo' UNION ALL
SELECT 'Bar' UNION ALL
SELECT 'Baz'
Then you can do
/*Define table with same structure but no IDENTITY*/
CREATE TABLE Temp
(
ID INT PRIMARY KEY,
X VARCHAR(10)
)
/*Switch table metadata to new structure*/
ALTER TABLE T...
Best way to display decimal without trailing zeroes
...
+1 - incidentally, you don't need the leading #. "0.#####" works identically. And either way, this does round away from zero (just FYI).
– TrueWill
Jul 26 '10 at 22:44
...
How can I get the external SD card path for Android 4.0+?
... this returned both the internal and external. This device is kinda an oddball in that its internal largely goes unused as getExternalStorage() returns a path to the sdcard instead.
and some single storage devices that use an sdcard as their main storage
HTC G1 (cyanogenmod 6.1)
HTC G1 (stock)
H...
Why are private fields private to the type, not the instance?
...this);
}
}
Can the compiler necessarily figure out that other is actually this? Not in all cases. One could argue that this just shouldn't compile then, but that means we have a code path where a private instance member of the correct instance isn't accessible, which I think is even worse.
On...