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Insert, on duplicate update in PostgreSQL?
...RT, as appropriate:
CREATE TABLE db (a INT PRIMARY KEY, b TEXT);
CREATE FUNCTION merge_db(key INT, data TEXT) RETURNS VOID AS
$$
BEGIN
LOOP
-- first try to update the key
-- note that "a" must be unique
UPDATE db SET b = data WHERE a = key;
IF found THEN
...
What is the difference between cout, cerr, clog of iostream header in c++? When to use which one?
...::clog.rdbuf(clogbuf);
}
int main()
{
test();
std::cout << "123";
}
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Does have to be in the of an HTML document?
...nswered Jun 24 '12 at 22:40
user123444555621user123444555621
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Why not infer template parameter from constructor?
... infer template parameters from class constructors, much as it can do from function parameters? For example, why couldn't the following code be valid:
...
Check if a string is html or not
... purposes your app may want to detect these too.
– TK123
Sep 21 '16 at 19:39
HTML is designed with the forgiveness of ...
Tablet or Phone - Android
...
123
As it has been mentioned before, you do not want to check whether the device is a tablet or a ...
adb not finding my device / phone (MacOS X)
...w on port 5037 *
* daemon started successfully *
List of devices attached
123ABC456DEF001 device
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Is there a better way to express nested namespaces in C++ within the header
...races that were missing comments about which brace closes which scope? Not fun.).
MY_COMPANY_BEGIN
MY_LIBRARY_BEGIN
class X { };
class Y { };
MY_LIBRARY_END
MY_COMPANY_END
If you want to put all namespace declarations on a single line you can do that as well with a bit of (pretty ugly) preproc...
Is the != check thread safe?
...
It has all been well explained by Stephen C. For fun, you could try to run the same code with the following JVM parameters:
-XX:InlineSmallCode=0
This should prevent the optimisation done by the JIT (it does on hotspot 7 server) and you will see true forever (I stopped a...
How to force a Solution file (SLN) to be opened in Visual Studio 2013?
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123
The .sln file indicates the intended version as one of the early lines - for example:
Microso...