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TSQL - Cast string to integer or return default value
... END
IF ABS(@I) > 2147483647 RETURN NULL
RETURN @I
END
GO
-- Testing
DECLARE @Test TABLE(Value nvarchar(50)) -- Result
INSERT INTO @Test SELECT '1234' -- 1234
INSERT INTO @Test SELECT '1,234' -- 1234
INSERT INTO @Test SELECT '1234.0' -- 1234
INSERT INTO...
Error Dropping Database (Can't rmdir '.test\', errno: 17)
...next process was to display the default databases (info. schema, mysql and test) which was achieved by using "SHOW DATABASES;"
...
What's the difference between Html.Label, Html.LabelFor and Html.LabelForModel
...he model property matching the string expression):
// Model
public string Test { get; set; }
// View
@Html.Label("Test")
// Output
<label for="Test">Test</label>
Html.LabelFor gives you a label for the property represented by the provided expression (typically a model property):
//...
How to find and return a duplicate value in array
...
It's linear, O(n), but now needs to manage multiple lines-of-code, needs test cases, etc.
If you need an even faster solution, maybe try C instead.
And here is the gist comparing different solutions: https://gist.github.com/naveed-ahmad/8f0b926ffccf5fbd206a1cc58ce9743e
...
How to call a shell script from python code?
...ple:
>>> import subprocess
>>> subprocess.call(['sh', './test.sh']) # Thanks @Jim Dennis for suggesting the []
0
>>>
Where test.sh is a simple shell script and 0 is its return value for this run.
...
Java 8 Streams: multiple filters vs. complex condition
...hat big.
You can take a look on my GitHub project, where I did performance tests for multiple array iteration options
For small array 10 element throughput ops/s:
For medium 10,000 elements throughput ops/s:
For large array 1,000,000 elements throughput ops/s:
NOTE: tests runs on
8 CPU
1 ...
搭建高可用mongodb集群（一）——配置mongodb - 大数据 & AI - 清泛网 - 专...
...ongodb测试文件夹
#存放整个mongodb文件
mkdir -p /data/mongodbtest/single
#存放mongodb数据文件
mkdir -p /data/mongodbtest/single/data
#进入mongodb文件夹
cd /data/mongodbtest/single
2、下载mongodb的安装程序包
wget http://fastdl.mongodb.org/linux/mongodb-...
Fastest way to serialize and deserialize .NET objects
I'm looking for the fastest way to serialize and deserialize .NET objects. Here is what I have so far:
9 Answers
...
Skip certain tables with mysqldump
... better for me. I can now import these two files into another database for testing purposes without having to worry about manipulating 9GB of data or running out of disk space.
share
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improve this ...
NSUserDefaults - How to tell if a key exists
...
@zekel Rather than guessing, I tested this (on iOS 5.1.1), and it definitely detected whether or not a BOOL was present, independent of what the value of said BOOL might be. "objectForKey" returned nil when the BOOL was not present because it had never be...