大约有 47,000 项符合查询结果(耗时:0.0561秒) [XML]
How to do a batch insert in MySQL
...
304
From the MySQL manual
INSERT statements that use VALUES
syntax can insert multiple rows. T...
How exactly does a generator comprehension work?
...
147
Do you understand list comprehensions? If so, a generator expression is like a list comprehensi...
Pry: show me the stack
...y the callstack (with show-stack), and so on:
see here:
Frame number: 0/64
From: /Users/johnmair/ruby/rails_projects/personal_site/app/controllers/posts_controller.rb @ line 7 PostsController#index:
5: def index
6: @posts = Post.all
=> 7: binding.pry
8: end
[1] pry(#<Post...
Converting from Integer, to BigInteger
...
240
The method you want is BigInteger#valueOf(long val).
E.g.,
BigInteger bi = BigInteger.valueOf...
Getting one value from a tuple
...0
Georgy
4,77355 gold badges3838 silver badges4646 bronze badges
answered Jun 28 '10 at 20:56
David ZDavid Z
...
What does “@@ -1 +1 @@” mean in Git's diff output?
...ile-modification-time
The time stamp looks like 2002-02-21 23:30:39.942229878 -0800 to indicate the date, time with fractional seconds, and time zone. The fractional seconds are omitted on hosts that do not support fractional time stamps.
You can change the header's content with the --lab...
Compare integer in bash, unary operator expected
...
4 Answers
4
Active
...
Version of SQLite used in Android?
...
482
UPDATE OCT 2016: Here is a link to the updated official docs which includes the main points in...