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Installing PDO driver on MySQL Linux server
...php.ini file and it looks like pdo in enabled by default, i still need to know if i can use both pdo and mysql_*handlers...
– Yuri Scarbaci
Nov 14 '12 at 8:18
1
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Does Foreign Key improve query performance?
...pretty much useless because it doesn't answer the question. It's great to know that foreign keys are not intended to have a (positive) effect on performance, but the question was concerning reality, not intentions.
– John
Mar 15 '17 at 16:04
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Switch branch names in git
...ed from before I started my crap work. Practically this works fine, I just now have a different branch as my main development branch. I'm wondering how I could change things around so I'm working on master again but it doesn't have my junk work and said work is on a different branch.
...
How to empty a list in C#?
...ds 5 equal answers?):
list.Add(5);
// list contains at least one element now
list = new List<int>();
// list in "list" is empty now
Keep in mind that all other references to the old list have not been cleared (depending on the situation, this might be what you want). Also, in terms of perf...
How to explain callbacks in plain english? How are they different from calling one function from ano
...sider how programmers normally write to a file:
fileObject = open(file)
# now that we have WAITED for the file to open, we can write to it
fileObject.write("We are writing to the file.")
# now we can continue doing the other, totally unrelated things our program does
Here, we WAIT for the file to...
How can I truncate a datetime in SQL Server?
...rect way (old):
dateadd(dd, datediff(dd,0, getDate()), 0)
This is older now, but it's still worth knowing because it can also easily adapt for other time points, like the first moment of the month, minute, hour, or year.
This correct way uses documented functions that are part of the ansi standa...
How to 'bulk update' with Django?
...
Update:
Django 2.2 version now has a bulk_update.
Old answer:
Refer to the following django documentation section
Updating multiple objects at once
In short you should be able to use:
ModelClass.objects.filter(name='bar').update(name="foo")
...
How to find the operating system version using JavaScript?
...Note that oscpu attribute gives you the Windows version. Also, you should know that:
'Windows 3.11' => 'Win16',
'Windows 95' => '(Windows 95)|(Win95)|(Windows_95)',
'Windows 98' => '(Windows 98)|(Win98)',
'Windows 2000' => '(Windows NT 5.0)|(Windows 2000)',
'Windows XP' => '(Windows...
After Installing Java JDK 7 For Mac OS X - mvn -version still shows java version 1.6.0_31
...y installed Java 6 and I am not able to locate JavaPreferences.app bcz mac now does not provide support for Java. Can tell me now how can I set my jvm without using JavaPreferences.
– amod
Feb 11 '13 at 6:41
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How do I reference an existing branch from an issue in GitHub?
... I contacted Github's support and they told me it is not possible right now.
– Nerian
Nov 4 '11 at 22:38
5
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