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Solutions for INSERT OR UPDATE on SQL Server
...ford & @Esteban show general idea but error-prone.
To avoid deadlocks and PK violations you can use something like this:
begin tran
if exists (select * from table with (updlock,serializable) where key = @key)
begin
update table set ...
where key = @key
end
else
begin
insert into tab...
KnockOutJS - Multiple ViewModels in a single View
I'm thinking that my application is getting quite large now, too large to handle each View with a single ViewModel.
5 Answe...
Is there a standard keyboard shortcut to build the current project in Visual Studio?
...
Assigning the shortcut to "Build.BuildOnlyProject" command doesn't seem to work in VS2008.
Assign the shortcut to "Build.BuildSelection". If you have a solution with several projects and files open from the various projects, whatever file you are currently editing will define ...
Rails: update_attribute vs update_attributes
... send(name.to_s + '=', value)
2616: save(false)
2617: end
and now refer update_attributes and look at its code you get
# File vendor/rails/activerecord/lib/active_record/base.rb, line 2621
2621: def update_attributes(attributes)
2622: self.attributes = attribute...
REST API 404: Bad URI, or Missing Resource?
...t the HTTP response code. On top of that, you can provide a response body and/or other headers with a more meaningful error message that developers will see.
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Can you determine if Chrome is in incognito mode via a script?
...d in incognito mode. Check out https://jsfiddle.net/w49x9f1a/ when you are and aren't in incognito mode.
Sample code:
var fs = window.RequestFileSystem || window.webkitRequestFileSystem;
if (!fs) {
console.log("check failed?");
} else {
fs(window.TEMPORARY,
100,
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Remove array element based on object property
... answered Mar 8 '13 at 6:19
jAndyjAndy
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Using Kafka as a (CQRS) Eventstore. Good idea?
... events in the stream. Each Kafka topic consists of one or more partitions and each partition is stored as a directory on the file system. There will also be pressure from ZooKeeper as the number of znodes increases.
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How to call a parent class function from derived class function?
...om a derived class using C++? For example, I have a class called parent , and a class called child which is derived from parent. Within
each class there is a print function. In the definition of the child's print function I would like to make a call to the parents print function. How would I...
How to detect the currently pressed key?
...u haven't answered the question properly. The OP is asking about all keys and used the Shift key as an example only. So how do you detect other keys such as A to Z, 0 to 9 etc.
– Ash
Dec 18 '09 at 10:03
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