大约有 15,600 项符合查询结果(耗时:0.0222秒) [XML]
SQL Server loop - how do I loop through a set of records
...
This is really weird. It contains a lot of errors, also using of two variables where one goes from 1 to COUNT(*) and second goes from COUNT(*) to 1 is weird.
– David Ferenczy Rogožan
Feb 9 '16 at 16:50
...
Django filter versus get for single object?
...None(MyModel, id=1)
if not obj:
#omg the object was not found do some error stuff
share
|
improve this answer
|
follow
|
...
C# pattern to prevent an event handler hooked twice [duplicate]
...e, e.g. Foo?.Invoke() would now become foo?.Invoke(). Otherwise you get an error.
– toddmo
Oct 19 '17 at 16:19
...
Check whether variable is number or string in JavaScript
...on assertTrue(value, message) {
if (!value) {
alert("Assertion error: " + message);
}
}
function assertFalse(value, message)
{
assertTrue(!value, message);
}
assertTrue(isString("string literal"), "number literal");
assertTrue(isString(new String("String object")), "String obje...
Is it possible to forward-declare a function in Python?
...efined yet.
function_name = 'foo'
# Calling at this point would produce an error
# Here is the definition
def foo():
bar()
# Note that at this point the function is defined
# Time for some reflection...
globals()[function_name]()
So in this way we have determined what function we want to...
AngularJS - Any way for $http.post to send request parameters instead of JSON?
... having issues. When I try to do it using the snippet given here, I get an error Cannot read property "jquery" of undefined. How do I fix this? PS. Per-call transformations work.
– kshep92
Jan 21 '13 at 0:27
...
How can I validate a string to only allow alphanumeric characters in it?
...ne attempts to pass in a non-validated string, it will generate a compiler error.
You can get fancier and implement all of the equality operators, or an explicit cast to AlphaNumericString from plain ol' string, if you care.
...
In PHP with PDO, how to check the final SQL parametrized query? [duplicate]
...T * FROM `example` WHERE `'userName'` = 'mick' ;
Which did not create an error, just an empty result. Instead I needed to use
$sql = "SELECT * FROM `example` WHERE `$dynamicField` = :value";
to get
SELECT * FROM `example` WHERE `userName` = 'mick' ;
When you are done execute:
SET GLOBAL gen...
How do you access a website running on localhost from iPhone browser
... network. How do I access localhost from the iPhone? Right now I get a 404 error.
26 Answers
...
SFTP Libraries for .NET [closed]
...per throws an exception detailing what is wrong. It took me some trial and error to get the parameters right, no fault of WinSCP, just my confusion between ftps and sftp. Also, remember to copy WinSCP.exe to the application bin folder; or you can set Session.ExecutablePath before calling Session.Ope...
