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Can I make the foreign key field optional in Django model
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Sure, just add blank=True, null=True for each field that you want to remain optional like
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Query a parameter (postgresql.conf setting) like “max_connections”
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answered Nov 27 '11 at 20:42
Erwin BrandstetterErwin Brandstetter
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Python - When to use file vs open
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edited Jul 31 '16 at 17:03
ElementW
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answered Sep 22 '08 at 3:0...
How to convert lazy sequence to non-lazy in Clojure
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Sergey Brunov
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answered Oct 29 '09 at 10:41
Rich HickeyRich Hicke...
INSERT INTO … SELECT FROM … ON DUPLICATE KEY UPDATE
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MySQL will assume the part before the equals references the columns named in the INSERT INTO cl...
Style child element when hover on parent
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answered Aug 27 '11 at 21:16
jtbandesjtbandes
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How to load a tsv file into a Pandas DataFrame?
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Note: As of 17.0 from_csv is discouraged: use pd.read_csv instead
The documentation lists a .from_csv function that appears to do what you want:
DataFrame.from_csv('c:/~/trainSetRel3.txt', sep='\t')
If you have a header, you can pass ...
.NET WebAPI Serialization k_BackingField Nastiness
...ata in their way.
– Luiz Felipe
Aug 7 '15 at 20:21
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What does “#pragma comment” mean?
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edited Jun 21 '14 at 17:32
answered Aug 14 '10 at 18:14
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How to enable C++11 in Qt Creator?
The title is pretty self-descriptive. I've downloaded Qt Creator 2.7.0, and I am trying to compile some basic C++11 code:
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