大约有 45,000 项符合查询结果（耗时：0.0535秒） [XML]
Real life example, when to use OUTER / CROSS APPLY in SQL
... reference the outer table, where INNER JOIN cannot do this(throws compile error). When finding the last two dates, joining is done inside CROSS APPLY ie, WHERE M.ID=D.ID.
2. When we need INNER JOIN functionality using functions.
CROSS APPLY can be used as a replacement with INNER JOIN when we ne...
Can I list-initialize a vector of move-only type?
...nst auto v1 = std::vector< UX >{ UX{}, UX{}, UX{} }; // !! Error !!
}
See it live on Coliru.
Perhaps someone can leverage std::make_array()'s trickery to allow make_vector() to do its thing directly, but I did not see how (more accurately, I tried what I thought should work, faile...
What XML parser should I use in C++? [closed]
...from), an XPath 1.0 recognizer, RelaxNG and Schematron support (though the error messages leave a lot to be desired), and so forth.
It does have a dependency on iconv, but it can be configured without that dependency. Though that does mean that you'll have a more limited set of possible text encodin...
Lock, mutex, semaphore… what's the difference?
...plementation/library as to what happens (usually the attempt ignored or an error is thrown). For semaphores in state 0, any thread can call release and it will be successful (regardless of which thread previous used acquire to put the semaphore in state 0).
From the preceding discussion, we can...
通信连接组件 · App Inventor 2 中文网
...)
连接到指定地址的蓝牙设备。
连接报错？ Runtime Error: Need android.permission.BLUETOOTH_CONNECT …
这时需要请求蓝牙连接权限，参考代码如下：
连接指定设备(地址,唯一编号)
连接到指定地址和UUID的蓝牙设备。
断...
What is the purpose of Rank2Types?
... typecheck (although some functions that go into infinite loops or produce errors and therefore never return will do so).
The above is contrived, of course, but a variation on this technique is key to making the ST monad safe.
...
How to implement a queue using two stacks?
...
This really helped to prevent the timeout errors I was getting during pop. I was placing the elements back in the original stack but there was no need to do that. Kudos!
– Pranit Bankar
Oct 16 '16 at 21:29
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Client-server synchronization pattern / algorithm?
...r a key length that's sufficient to eliminate conflicts, with some kind of error checking just in case. But the history table and the combination of incremental downloads for recent updates or a full download when needed has been working well.
...
Byte order mark screws up file reading in Java
...e> to use system default encoding.
* @throws IOException If an I/O error occurs.
*/
public UnicodeReader(InputStream in, String defaultEncoding) throws IOException {
byte bom[] = new byte[BOM_SIZE];
String encoding;
int unread;
PushbackInputStream pus...
C++ IDE for Linux? [closed]
...at the end of it!
do you have to compile first before getting (syntax) errors?
Yes. But this is the same for Visual Studio, isn't it (I've never used Whole Tomato)? Of course, the syntax highlighting will show you non-matching brackets but that's about all.
and how do you debug (again thin...