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What happens to an open file handle on Linux if the pointed file gets moved or deleted
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160
If the file is moved (in the same filesystem) or renamed, then the file handle remains open and ...
How do I get the current time zone of MySQL?
...can set the timezone used by your connection like this:
set time_zone = '+00:00';
That sets the timezone to GMT, so that any further operations (like now()) will use GMT.
Note, though, that time and date values are not stored with timezone information in MySQL:
mysql> create table foo (tstam...
Git merge errors
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edited May 23 '17 at 12:02
Community♦
111 silver badge
answered May 15 '11 at 7:23
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How can I use grep to show just filenames on Linux?
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1703
The standard option grep -l (that is a lowercase L) could do this.
From the Unix standard:
-l...
What is the recommended batch size for SqlBulkCopy?
...t 6M qualified rows, averaging 5 columns of decimal and short text, about 30 bytes per row.
Given this scenario, I found a batch size of 5,000 to be the best compromise of speed and memory consumption. I started with 500 and experimented with larger. I found 5000 to be 2.5x faster, on average, tha...
java: Class.isInstance vs Class.isAssignableFrom
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edited Apr 24 '18 at 22:00
answered Oct 16 '10 at 14:55
u...
Can someone explain collection_select to me in clear, simple terms?
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306
collection_select(
:post, # field namespace
:author_id, # field name
# result of t...
Redis is single-threaded, then how does it do concurrent I/O?
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370
Well it depends on how you define concurrency.
In server-side software, concurrency and paralle...
JUnit 4 Test Suites
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edited Sep 13 '12 at 14:08
Anton Holmberg
1,0031111 silver badges1515 bronze badges
answered Jan 19 '0...
How do I see the current encoding of a file in Sublime Text?
...esult in google search, here is the way to do it for sublime text 3 build 3059+:
in user preferences, add the line:
"show_encoding": true
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