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使用TokuMX配置Replica Set集群 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...替换了一颗真正的数据库存储引擎，我们现在可以像使用MySQL数据库一样精确的指定TokuMX最大可用内存，它也完整支持的事务处理。当然了，TokuTek引以为傲的数据压缩能力也是一点也没落下。性能详细对比请参见《TokuMX vs. MongoDB...
Avoid duplicates in INSERT INTO SELECT query in SQL Server
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In MySQL you can do this:
INSERT IGNORE INTO Table2(Id, Name) SELECT Id, Name FROM Table1
Does SQL Server have anything similar?
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Mathematical functions in Swift
... sqrt, floor and round because you may natively use respectively 0.5.squareRoot(), Int(0.5) and 0.5.round().
– Cœur
Oct 10 '18 at 10:04
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如果携程决心战略性亏损到底，去哪儿怕是只剩一条路可走 - 资讯 - 清泛网 -...
...会入市，而这可能造成携程股价的波动，而对管理层而言如何平稳的过渡获得更高的评级保持股价的稳定增长在一定程度上也是一个挑战。今年2月9日，携程原第一大股东，美国知名老牌共同基金奥本海默基金清空了其持有的所...
iPhone hide Navigation Bar only on first page
...ind the event/action to trigger it to hide again when they get back to the root view....
14 Answers
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How to repair a serialized string which has been corrupted by an incorrect byte count length?
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The OP's question does not appear to have a mysql column type issue. It is apparently corrupted by an incorrect byte calculation on the image value. Your answer does not pertain to the OP's specific question. You may wish to move your advice to: stackoverflow.com/q...
How do I put an 'if clause' in an SQL string?
So here's what I want to do on my MySQL database.
9 Answers
9
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Express res.sendfile throwing forbidden error
...press considers relative paths in sendfile as bad. Unless you specify the root directory parameter, as seen here: github.com/visionmedia/express/issues/1465
– Joe
Aug 6 '13 at 10:51
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What is time_t ultimately a typedef to?
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[root]# cat time.c
#include <time.h>
int main(int argc, char** argv)
{
time_t test;
return 0;
}
[root]# gcc -E time.c | grep __time_t
typedef long int __time_t;
It's defined in $INCDIR/bits/types.h ...
When NOT to use yield (return) [duplicate]
...ublic static IEnumerable<T> PreorderTraversal<T>(Tree<T> root)
{
if (root == null) yield break;
yield return root.Value;
foreach(T item in PreorderTraversal(root.Left))
yield return item;
foreach(T item in PreorderTraversal(root.Right))
yield return ...