大约有 16,000 项符合查询结果（耗时：0.0279秒） [XML]
Why all the Active Record hate? [closed]
...irst.company and it doesn't need to hit the database because the data is already present.
@pix0r
The inherent problem with Active Record is that database queries are automatically generated and executed to populate objects and modify database records
Code:
person = Person.find_by_sql("gi...
Convert decimal to hexadecimal in UNIX shell script
...e you mean convert hex to dec. To do that, set ibase=16. You might like to read the manual on bc for more details.
– Bill Karwin
May 28 '15 at 1:58
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Dump Mongo Collection into JSON format
...V. You can specify a filter for the query, or a list of fields to output
Read more here: http://www.mongodb.org/display/DOCS/mongoexport
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follo...
Get element from within an iFrame
...innerDoc = iframe.contentDocument || iframe.contentWindow.document; //more readable and means the same
– David Snabel-Caunt
Jul 6 '09 at 18:40
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How do I repeat an edit on multiple lines in Vim?
...ptures initial whitespace and saves it into a register, which you can then read with \1.
– Svante
Dec 10 '08 at 12:59
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How can I stop a running MySQL query?
... then I run a SELECT query that is too big. It prints and prints and I already know this is not what I meant. I would like to stop the query.
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How to update column with null value
...ause PHPMyAdmin claimed there was an unrecognised keyword near NULL. After reading your answer, I ran the query and it executed as intended.
– dading84
Aug 2 '16 at 10:06
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unix diff side-to-side results?
...hen it's not immediately obvious from diff.
IMHO, its output is much more readable than diff -y.
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Android Lint contentDescription warning
... attribute to specify a textual description of the widget such that screen readers and other accessibility tools can adequately describe the user interface.
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MySQL - force not to use cache for testing speed of query
...out mysql Query cache. How to setup and see the cache in action! Worth the read. databasejournal.com/features/mysql/article.php/3110171/…
– Adrian P.
Feb 20 '14 at 18:03
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