大约有 37,000 项符合查询结果(耗时:0.0287秒) [XML]
Laravel - Eloquent or Fluent random row
... This way you are retrieving all records and getting a random one. If your table has too many records this could be bad for your app.
– Anderson Silva
Jun 14 '16 at 14:23
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The difference between fork(), vfork(), exec() and clone()
...s big. I presume this is because the kernel still has to copy all the page tables.
– Martina Ferrari
Mar 15 '16 at 3:04
4
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Large Object Heap Fragmentation
...is is a very interesting lead, thanks. Completely forgot about the intern table. I know one of our developers is a keen interner so this is definitely something I shall investigate.
– Paul Ruane
Mar 27 '09 at 10:34
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Heatmap in matplotlib with pcolor?
...s(np.arange(nba_sort.shape[1]) + 0.5, minor=False)
# want a more natural, table-like display
ax.invert_yaxis()
ax.xaxis.tick_top()
# Set the labels
# label source:https://en.wikipedia.org/wiki/Basketball_statistics
labels = [
'Games', 'Minutes', 'Points', 'Field goals made', 'Field goal attem...
How to prevent long words from breaking my div?
Ever since switching from TABLE-layout to DIV-layout, one common problem remains:
26 Answers
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Hibernate dialect for Oracle Database 11g?
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Unfortunately does not help for "ORA-01754: a table may contain only one column of type LONG".
– Jan Goyvaerts
Mar 6 '13 at 10:52
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How to extract text from a PDF? [closed]
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I was given a 400 page pdf file with a table of data that I had to import - luckily no images. Ghostscript worked for me:
gswin64c -sDEVICE=txtwrite -o output.txt input.pdf
The output file was split into pages with headers, etc., but it was then easy to write a...
On duplicate key ignore? [duplicate]
...).
Instead, since in your example tag is the unique key, use:
INSERT INTO table_tags (tag) VALUES ('tag_a'),('tab_b'),('tag_c') ON DUPLICATE KEY UPDATE tag=tag;
on duplicate key produces:
Query OK, 0 rows affected (0.07 sec)
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MySql export schema without data
...nsider using the --single-transaction option if you don't want or can't do table locks.
– Jim
Jan 22 '13 at 21:55
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Javascript. Assign array values to multiple variables? [duplicate]
...t in languages such as Perl and Python.
Unfortunately, according to this table of versions, JavaScript 1.7 has not been implemented in Chrome. But it should be there in:
FireFox 2.0+
IE 9
Opera 11.50.
Try it for yourself in this jsfiddle: http://jsfiddle.net/uBReg/
I tested this on Chrome (f...