大约有 44,000 项符合查询结果(耗时:0.0400秒) [XML]

https://stackoverflow.com/ques... 

How to automatically generate getters and setters in Android Studio

...ar -> Code -> Generate... and then using shift or control button, select all the variables you need to add getters and setters share | improve this answer | follow ...
https://stackoverflow.com/ques... 

LEFT OUTER JOIN in LINQ

...c.Category equals p.Category into ps from p in ps.DefaultIfEmpty() select new { Category = c, ProductName = p == null ? "(No products)" : p.ProductName }; share | improve this answer ...
https://stackoverflow.com/ques... 

Insert, on duplicate update in PostgreSQL?

...try the UPDATE again END; END LOOP; END; $$ LANGUAGE plpgsql; SELECT merge_db(1, 'david'); SELECT merge_db(1, 'dennis'); There's possibly an example of how to do this in bulk, using CTEs in 9.1 and above, in the hackers mailing list: WITH foos AS (SELECT (UNNEST(%foo[])).*) updated...
https://stackoverflow.com/ques... 

What is the difference between UNION and UNION ALL?

...want the duplicates (especially when developing reports). UNION Example: SELECT 'foo' AS bar UNION SELECT 'foo' AS bar Result: +-----+ | bar | +-----+ | foo | +-----+ 1 row in set (0.00 sec) UNION ALL example: SELECT 'foo' AS bar UNION ALL SELECT 'foo' AS bar Result: +-----+ | bar | +---...
https://stackoverflow.com/ques... 

django : using select_related and get_object_or_404 together

Is there any way of using get_object_or_404 and select_related together or any other way to achieve the result of using these two together(except from putting it in try/except)?? ...
https://stackoverflow.com/ques... 

SQL JOIN vs IN performance?

...king, IN and JOIN are different queries that can yield different results. SELECT a.* FROM a JOIN b ON a.col = b.col is not the same as SELECT a.* FROM a WHERE col IN ( SELECT col FROM b ) , unless b.col is unique. However, this is the syno...
https://stackoverflow.com/ques... 

Xcode duplicate line

... command item as the screenshot below (name them what you want): That's: selectLine:, copy:, moveToEndOfLine:, insertNewline:, paste:, deleteBackward: Restart Xcode and go to Preferences - Key Bindings, search for your command. Set a key combination for the command: Finally unleashed the power of...
https://stackoverflow.com/ques... 

How do you display code snippets in MS Word preserving format and syntax highlighting?

...d install Notepad++ and do the following: Paste your code in the window; Select the programming language from the language menu; Select the text to copy; Right click and select Plugin commands -> Copy Text with Syntax Highlighting; Paste it into MS Word and you are good to go! Update 29/06/20...
https://stackoverflow.com/ques... 

how to schedule a job for sql query to run daily?

...QL Server Agent node and right click the Jobs node in SQL Server Agent and select 'New Job' In the 'New Job' window enter the name of the job and a description on the 'General' tab. Select 'Steps' on the left hand side of the window and click 'New' at the bottom. In the 'Steps' window enter a step n...
https://stackoverflow.com/ques... 

Remove all breakpoints in IntelliJ IDEA

... Ctrl+Shift+F8 is using for removing all breakpoints. Select upper breakpoint -> Ctrl+Shift+End -> Remove On Mac Os use this: Cmd + Shift + (Fn) + F8 on Mac OS share | ...