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How do you receive a url parameter with a spring controller mapping
...f @ModelAttribute, e.g.
@RequestMapping("/{someID}")
public @ResponseBody int getAttr(@PathVariable(value="someID") String id,
@RequestParam String someAttr) {
}
You can even omit @RequestParam altogether if you choose, and Spring will assume that's what it is:
...
How can I tell when a MySQL table was last updated?
...st SHOW commands like this are simply mapped to Information_schema queries internally, so this answer gives exactly the same data as the answer from Alnitak above. And ajacian81 is correct - it does not work for MySQL's default storage engine, InnoDB.
– Bill Karwin
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Better techniques for trimming leading zeros in SQL Server?
...both Leading and Trailing zero's.
--Avoid losing those Trailing zero's and converting embedded spaces into more zeros.
--I added a non-whitespace character ("_") to retain trailing zero's after calling Replace().
--Simply remove the RTrim() function call if you want to preserve trailing spaces.
--If...
How to initialize a struct in accordance with C programming language standards
... 89 allows you to initialize a struct this way:
typedef struct Item {
int a;
float b;
char* name;
} Item;
int main(void) {
Item item = { 5, 2.2, "George" };
return 0;
}
An important thing to remember, at the moment you initialize even one object/ variable in the struct, all o...
SELECT INTO a table variable in T-SQL
Got a complex SELECT query, from which I would like to insert all rows into a table variable, but T-SQL doesn't allow it.
8...
CSV file written with Python has blank lines between each row
... in binary mode "wb" will not work in Python 3+. Or rather, you'd have to convert your data to binary before writing it. That's just a hassle.
Instead, you should keep it in text mode, but override the newline as empty. Like so:
with open('/pythonwork/thefile_subset11.csv', 'w', newline='') as ...
sql primary key and index
Say I have an ID row (int) in a database set as the primary key. If I query off the ID often do I also need to index it? Or does it being a primary key mean it's already indexed?
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What does this thread join code mean?
...r the t1.join() call at all.
In terms of the try/catch, the join() throws InterruptedException meaning that the main thread that is calling join() may itself be interrupted by another thread.
while (true) {
Having the joins in a while loop is a strange pattern. Typically you would do the firs...
Why is pow(a, d, n) so much faster than a**d % n?
...hat is what pow does. The ** operator can't do this because it can't "see into the future" to know that you are going to immediately take the modulus.
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How to get the IP address of the server on which my C# application is running on?
...would change would be to change this:
if (ip.AddressFamily.ToString() == "InterNetwork")
to this:
if (ip.AddressFamily == AddressFamily.InterNetwork)
There is no need to ToString an enumeration for comparison.
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