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Using Eloquent ORM in Laravel to perform search of database using LIKE
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App Inventor 2 拓展参考文档 · App Inventor 2 中文网
...获取手机等设备软硬件、版本等相关信息
【数据库】 SQLite 拓展：超流行兼容主流SQL语法的迷你本地数据库引擎
【常用工具】 AI2Utils 拓展：一些常用的小功能集合
【手电筒】 FlashLight 拓展：打开/关闭手机手电筒
【截屏...
data.table vs dplyr: can one do something well the other can't or does poorly?
...diff, fintersect, funion and fsetequal with additional all argument (as in SQL).
data.table loads cleanly with no masking warnings and has a mechanism described here for [.data.frame compatibility when passed to any R package. dplyr changes base functions filter, lag and [ which can cause problems; ...
Insert Data Into Temp Table with Query
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SQL Server R2 2008 needs the AS clause as follows:
SELECT *
INTO #temp
FROM (
SELECT col1, col2
FROM table1
) AS x
The query failed without the AS x at the end.
EDIT
It's also needed when using SS2016, had to...
App Inventor 2 拓展参考文档 · App Inventor 2 中文网
...获取手机等设备软硬件、版本等相关信息
【数据库】 SQLite 拓展：超流行兼容主流SQL语法的迷你本地数据库引擎
【常用工具】 AI2Utils 拓展：一些常用的小功能集合
【手电筒】 FlashLight 拓展：打开/关闭手机手电筒
【截屏...
django order_by query set, ascending and descending
... You can, but I strongly suspect that it be more efficient to let the SQL server handle the order, at least in theory. It's nice and clear, though.
– Michael Scheper
Sep 26 '16 at 16:51
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Redis消息通知系统的实现 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...置的SORT命令可以达到事半功倍的效果，实际上它类似于SQL中的JOIN：
redis> SORT usr:123:msg GET msg:*->title
1) "title1"
2) "title2"
3) "title3"
redis> SORT usr:123:msg GET msg:*->content
1) "content1"
2) "content2"
3) "content3"
SORT的缺点是它只能GET出字符...
Dependency Inject (DI) “friendly” library
... public Service()
{
}
public void DoSomething()
{
SqlConnection connection = new SqlConnection("some connection string");
WindowsIdentity identity = WindowsIdentity.GetCurrent();
// Do something with connection and identity variables
}
}
You write it li...
Table is marked as crashed and should be repaired
...
Run this from your server's command line:
mysqlcheck --repair --all-databases
share
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Sqlite or MySql? How to decide? [closed]
...
Their feature sets are not at all the same. Sqlite is an embedded database which has no network capabilities (unless you add them). So you can't use it on a network.
If you need
Network access - for example accessing from another machine;
Any real degree of concurr...