大约有 47,000 项符合查询结果（耗时：0.0931秒） [XML]
Unique constraint that allows empty values in MySQL
I have a field that stores product codes. The codes are unique, but som>me m> products simply doesn't have a code. I can't invent codes because those are providers codes.
...
How to get key nam>me m>s from JSON using jq
curl http://testhost.test.com:8080/application/app/version | jq '.version' | jq '.[]'
7 Answers
...
Why does “while(true)” without “Thread.sleep” cause 100% CPU usage on Linux but not on Windows?
I have created a simple program in java:
1 Answer
1
...
How to enable Ad Hoc Distributed Queries
...
The following command may help you..
EXEC sp_configure 'show advanced options', 1
RECONFIGURE
GO
EXEC sp_configure 'ad hoc distributed queries', 1
RECONFIGURE
GO
s...
Is there a javadoc tag for docum>me m>nting generic type param>me m>ters?
I've been looking through the javadoc docum>me m>ntation on Sun's site, trying to find if there's a javadoc tag which can be used to docum>me m>nt a class or m>me m>thod's generic type signature.
...
How to create index on JSON field in Postgres?
...ublishers(id INT, info JSON);
CREATE INDEX ON publishers((info->>'nam>me m>'));
As stated in the comm>me m>nts, the subtle difference here is ->> instead of ->. The form>me m>r one returns the value as text, the latter as a JSON object.
...
What is RPC fram>me m>work and Apache Thrift?
...Thrift for a University project. As this tutorial says, it is an RPC fram>me m>work, and it was the only docum>me m>nt I could find for Thrift other than their docum>me m>ntation .
...
Regex - Does not contain certain Characters
I need a regex to match if anywhere in a sentence there is NOT either < or >.
2 Answers
...
finding the type of an elem>me m>nt using jQuery
In jQuery, if I have a reference to an elem>me m>nt, how can I determine what kind of elem>me m>nt it is, for example, an input or an dropdown? Is there any way to find out?
...
Coredata Error “data: ”
I try to pull out data from CoreData with the following code
2 Answers
2
...