大约有 5,500 项符合查询结果（耗时：0.0261秒） [XML]
Is this a “good enough” random algorithm; why isn't it used if it's faster?
...);
int[] frequencies = new int[10];
for (int i = 0; i < 100000; i++) {
frequencies[(int) (qr.random() * 10)]++;
}
printDistribution("QR", frequencies);
frequencies = new int[10];
for (int i = 0; i < 100000; i++) {
frequen...
How to restore to a different database in sql server?
...TO DISK = @TemplateBackups WITH CHECKSUM, COPY_ONLY, FORMAT, INIT, STATS = 100;
-- Get the backup file list as a table variable
DECLARE @BackupFiles TABLE(LogicalName nvarchar(128),PhysicalName nvarchar(260),Type char(1),FileGroupName nvarchar(128),Size numeric(20,0),MaxSize numeric(20,0),FileId ti...
What can you use Python generator functions for?
...unction is clearer. And if you use the function like this:
for x in fibon(1000000):
print x,
in this example, if using the generator version, the whole 1000000 item list won't be created at all, just one value at a time. That would not be the case when using the list version, where a list wou...
How can I save my secret keys and password securely in my version control system?
...
100
+100
You're...
Handle file download from ajax post
...
setTimeout(function () { URL.revokeObjectURL(downloadUrl); }, 100); // cleanup
}
}
};
xhr.setRequestHeader('Content-type', 'application/x-www-form-urlencoded');
xhr.send($.param(params));
Here is the old version using jQuery.ajax. It might mangle binary data when the respo...
What is the recommended batch size for SqlBulkCopy?
...h above and below this.
I got the recommendation to test values between 100 and 1000 for batch size from this MSDN forum post, and was skeptical. But when I tested for batch sizes between 100 and 10,000, I found that 500 was the optimal value for my application. The 500 value for SqlBulkCopy.Ba...
WPF Data Binding and Validation Rules Best Practices
...lidation for (for exemple) an "Age" property that could not be bigger then 100 in the ValidationRule, then repeat the same logic in the IDataErrorInfo interface, wich duplicates the logic. Is there any way around that?
– JFTxJ
Sep 20 '13 at 17:33
...
iPad/iPhone hover problem causes the user to double click a link
...over(
function(){
$(this).stop().animate({opacity: 1}, 100);
$(this).addClass("portfolio-red-text");
},
function(){
$(this).stop().animate({opacity: 0.85}, 100);
$(this).removeClass("portfolio-red-text");
}
);
}
*c...
Is there an R function for finding the index of an element in a vector?
... mean median uq max neval
891 979.0 1098.00 1031 1135.5 3693 100
1052 1175.5 1339.74 1235 1390.0 7399 100
So, the best one is
which("Feb" == month.abb)[[1]]
share
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impro...
SQL Server SELECT into existing table
...ty purpose.
----Create testable
CREATE TABLE TestTable (FirstName VARCHAR(100), LastName VARCHAR(100))
----INSERT INTO TestTable using SELECT
INSERT INTO TestTable (FirstName, LastName)
SELECT FirstName, LastName
FROM Person.Contact
WHERE EmailPromotion = 2
----Verify that Data in TestTable
SELECT ...