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Get query from java.sql.PreparedStatement [duplicate]
...tatement#toString(). I.e.
System.out.println(preparedStatement);
To my experience, the ones which do so are at least the PostgreSQL 8.x and MySQL 5.x JDBC drivers. For the case your JDBC driver doesn't support it, your best bet is using a statement wrapper which logs all setXxx() methods and fina...
Is having an 'OR' in an INNER JOIN condition a bad idea?
...ind of JOIN is not optimizable to a HASH JOIN or a MERGE JOIN.
It can be expressed as a concatenation of two resultsets:
SELECT *
FROM maintable m
JOIN othertable o
ON o.parentId = m.id
UNION
SELECT *
FROM maintable m
JOIN othertable o
ON o.id = m.parentId
, each of them ...
Creating a Radial Menu in CSS
...kground on the root element).
2015 demo
Screenshots
Chrome 43:
Firefox 38:
IE 11:
Code
The HTML is pretty simple. I'm using the checkbox hack to reveal/ hide the menu.
<input type='checkbox' id='t'/>
<label for='t'>✰</label>
<ul>
<li><a href='#'&g...
How to show git log history for a sub directory of a git repo?
...es for src/nvfs
$ git log --oneline -- src/nvfs
d6f6b3b Changes for Mac OS X
803fcc3 Initial Commit
# Show all changes (one additional commit besides in src/nvfs).
$ git log --oneline
d6f6b3b Changes for Mac OS X
96cbb79 gitignore
803fcc3 Initial Commit
...
Handle Guzzle exception and get HTTP body
I would like to handle errors from Guzzle when the server returns 4xx and 5xx status codes. I make a request like this:
5 A...
@import vs #import - iOS 7
...ucing a blur effect within the source code for the session, UIImage was extended via a category which imports UIKit like so:
...
How to convert wstring into string?
...r_type>(locale);
std::vector<char> to(ws.length() * converter.max_length());
std::mbstate_t state;
const wchar_t* from_next;
char* to_next;
const converter_type::result result = converter.out(state, ws.data(), ws.data() + ws.length(), from_next, &to[0], &to[0] + to.size(),...
Iterate through the fields of a struct in Go
...
The closest you can achieve in go is GetValue() interface{} and this is exactly what reflect.Value.Interface()
offers.
The following code illustrates how to get the values of each exported field in a struct
using reflection (play):
import (
"fmt"
"reflect"
)
func main() {
x := struc...
How to do a join in linq to sql with method syntax?
I have seen lots of examples in LINQ to SQL examples on how to do a join in query syntax but I am wondering how to do it with method syntax? For example how might I do the following
...
Is there a range class in C++11 for use with range based for loops?
...rence implementation that made it into the major compilers under the std::experimental::ranges namespace. range-v3 was always sort-of the reference implementation I'd say. But now I believe the basic range stuff has also recently been voted into C++20, so we will indeed get it in std:: soon! :-)
...