大约有 46,000 项符合查询结果（耗时：0.0550秒） [XML]
Query for array elements inside JSON type
...th the function json_array_elements() in a lateral join in the FROM clause and test for its elements:
WITH reports(data) AS (
VALUES ('{"objects":[{"src":"foo.png"}, {"src":"bar.png"}]
, "background":"background.png"}'::json)
)
SELECT *
FROM reports r, json_array_elements(r.data#...
Parse (split) a string in C++ using string delimiter (standard C++)
...npos) function returns a substring of the object, starting at position pos and of length npos.
If you have multiple delimiters, after you have extracted one token, you can remove it (delimiter included) to proceed with subsequent extractions (if you want to preserve the original string, just use...
Create aar file in Android Studio
I'd like to create an aar file for my library in Android Studio, i would've gone with a jar option but my library has resources.
...
How to commit no change and new message?
How can I make a new commit and create a new message if no changes are made to files?
5 Answers
...
Implement paging (skip / take) functionality with this query
I have been trying to understand a little bit about how to implement custom paging in SQL, for instance reading articles like this one .
...
How to use Bitbucket and GitHub at the same time for one project?
I have one repository which I want to push into Bitbucket and GitHub.
It is vital for my repository to be hosted by both.
3...
Difference between OperationCanceledException and TaskCanceledException?
What is the difference between OperationCanceledException and TaskCanceledException ? If I am using .NET 4.5 and using the async / await keywords, which one should I be looking to catch?
...
jQuery vs jQuery Mobile vs jQuery UI?
I'm new to web development and there are just too many j* stuff out there. I wonder what are the differences between these frameworks?
...
“continue” in cursor.forEach()
I'm building an app using meteor.js and MongoDB and I have a question about cursor.forEach().
I want to check some conditions in the beginning of each forEach iteration and then skip the element if I don't have to do the operation on it so I can save some time.
...
What is the difference between user variables and system variables?
What is the difference between user variables such as PATH , TMP , etc. and system variables?
5 Answers
...