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Can I make the foreign key field optional in Django model
... Abid AAbid A
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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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Observer Design Pattern vs “Listeners”
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answered Jul 29 '10 at 2:35
Derek GreerDerek Greer
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What is the difference between a WCF Service Application and a WCF Service Library?
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edited Jan 26 '11 at 12:05
answered Jul 30 '09 at 4:34
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Export Postgresql table data using pgAdmin
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edited Nov 25 '16 at 15:06
Alfonso Tienda
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When tracing out variables in the console, How to create a new line?
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answered Apr 26 '13 at 15:01
Selvakumar ArumugamSelvakumar Arumugam
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How to redirect single url in nginx?
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answered Aug 3 '13 at 23:06
BraveNewCurrencyBraveNewCurrency
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ggplot: How to increase spacing between faceted plots?
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answered Sep 10 '10 at 7:20
rcsrcs
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Do I need to manually close an ifstream?
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edited Jun 20 at 9:12
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answered Apr 14 '09 at 15:09
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Is it a good idea to index datetime field in mysql?
... elimination of rows between conditions: http://dev.mysql.com/doc/refman/5.0/en/mysql-indexes.html
This makes your datetime column an excellent candidate for an index if you are going to be using it in conditions frequently in queries. If your only condition is BETWEEN NOW() AND DATE_ADD(NOW(), IN...