大约有 10,700 项符合查询结果(耗时:0.0242秒) [XML]

https://stackoverflow.com/ques... 

SQL Server: Examples of PIVOTing String data

...on text as well as numbers. This query will only require the table to be scanned once. SELECT Action, MAX( CASE data WHEN 'View' THEN data ELSE '' END ) ViewCol, MAX( CASE data WHEN 'Edit' THEN data ELSE '' END ) EditCol FROM t GROUP BY Action ...
https://stackoverflow.com/ques... 

How do I turn a String into a InputStreamReader in java?

How can I transform a String value into an InputStreamReader ? 6 Answers 6 ...
https://stackoverflow.com/ques... 

SQL UPDATE all values in a field with appended string CONCAT not working

... +------+-------+ 4 rows in set (0.02 sec) mysql> update t set data=concat(data, 'a'); Query OK, 4 rows affected (0.01 sec) Rows matched: 4 Changed: 4 Warnings: 0 mysql> select * from t; +------+--------+ | id | data | +------+--------+ | 1 | maxa | | 2 | lindaa | | 3 | sama...
https://stackoverflow.com/ques... 

How do I globally configure RSpec to keep the '--color' and '--format specdoc' options turned on

... As you can see in the docs here, the intended use is creating ~/.rspec and in it putting your options, such as --color. To quickly create an ~/.rspec file with the --color option, just run: echo '--color' >> ~/.rspec ...
https://stackoverflow.com/ques... 

Using 'return' in a Ruby block

...001:0> def thing(*args, &block) irb(main):002:1> value = block.call irb(main):003:1> puts "value=#{value}" irb(main):004:1> end => nil irb(main):005:0> irb(main):006:0* thing { irb(main):007:1* return 6 * 7 irb(main):008:1> } LocalJumpError: unexpected return f...
https://stackoverflow.com/ques... 

How do you attach and detach from Docker's process?

I can attach to a docker process but Ctrl + c doesn't work to detach from it. exit basically halts the process. 15 Ans...
https://stackoverflow.com/ques... 

How to turn on line numbers in IDLE?

...nt window, go to Options and click Show Line Numbers. To show them automatically, go to Options > Configure IDLE > General and check the Show line numbers in new windows box. Version 3.7 or older: Unfortunately there is not an option to display line numbers in IDLE although there is an enhance...
https://stackoverflow.com/ques... 

Correct approach to global logging in Golang

What's the pattern for application logging in Go? If I've got, say, 5 goroutines I need to log from, should I... 7 Answers...
https://stackoverflow.com/ques... 

How to make a in Bootstrap look like a normal link in nav-tabs?

...they have too much padding around them which messes up the layout. BUT you can fix that by adding a small amount of CSS (see @mcNux answer below) – Martin CR Feb 22 at 17:21 ...
https://stackoverflow.com/ques... 

How to sort mongodb with pymongo

... You can try this: db.Account.find().sort("UserName") db.Account.find().sort("UserName",pymongo.ASCENDING) db.Account.find().sort("UserName",pymongo.DESCENDING) ...