大约有 30,000 项符合查询结果(耗时:0.0618秒) [XML]
How can I get the list of a columns in a table for a SQLite database?
...(3.6, I believe). I am looking for code that does this with a SQL query. Extra bonus points for metadata related to the columns (e.g. length, data type, etc...)
...
How to embed an autoplaying YouTube video in an iframe?
...the others that the solution is not only the param in the URL but also the extra parameter :) Maybe you should mention that explicit.
– Gkiokan
Jul 13 at 7:20
add a comment
...
map function for objects (instead of arrays)
...
There is no need to add an extra HTTP call and an extra library just for one function. In any case, this answer is now outdated and you can simply call Object.entries({a: 1, b: 2, c: 3}) to get an array.
– user6269864
...
How do I show a console output/window in a forms application?
...application.
/// </summary>
[STAThread]
static void Main(string[] args)
{
// initialize console handles
InitConsoleHandles();
if (args.Length != 0)
{
if (args[0].Equals("waitfordebugger"))
{
MessageBox.Sh...
What makes a keychain item unique (in iOS)?
...ivate keys. That's a lot different to Apple's sample code that only stores string credentials (username/password). However, I have found out that when you set the kSecClass to kSecClassCertificate or kSecClassKey the Keychain checks also if the entry (the value) is already stored. This prevents from...
Printing all global variables/local variables?
...unction you're in, use
(gdb) info args
For example:
int main(int argc, char *argv[]) {
argc = 6*7; //Break here.
return 0;
}
argc and argv won't be shown by info locals. The message will be "No locals."
Reference: info locals command.
...
Fastest way to count exact number of rows in a very large table?
...l your tables with the row count (which is the total) along with plenty of extra information if you want.
share
|
improve this answer
|
follow
|
...
What is the combinatory logic equivalent of intuitionistic type theory?
...uction we know.)
Combinator Syntax and Normalization
Anyhow, we have two extra symbols, Pi and Set, so we might perhaps manage a combinatory translation with S, K and two extra symbols: I chose U for the universe and P for the product.
Now we can define the untyped combinatory syntax (with free v...
What's the scope of the “using” declaration in C++?
I'm using the 'using' declaration in C++ to add std::string and std::vector to the local namespace (to save typing unnecessary 'std::'s).
...
What are the differences between SML and OCaml? [closed]
...a top-level primitive in SML; it's not part of the Caml library. The Caml string library doesn't provide a fold function (at least not as of version 3.08). Implementations of many of the Caml List functions are unsafe for very long lists; they blow the stack.
The type systems are subtly different:...