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UDP vs TCP, how much faster is it? [closed]
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UDP is faster than TCP, and the simple reason is because its non-existent acknowledge packet (ACK) that permits a continuous packet stream, instead of TCP that acknowledges a set of packets, calculated by using the TCP window size and round-trip tim...
Simple conversion between java.util.Date and XMLGregorianCalendar
I'm looking for a simple method of converting between java.util.Date and javax.xml.datatype.XMLGregorianCalendar in both directions.
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Viewing complete strings while debugging in Eclipse
While debugging Java code, Strings in the views "Variables" and "Expressions" show up only till a certain length, after which Eclipse shows "..."
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Format Instant to String
I'm trying to format an Instant to a String using the new java 8 time-api and a pattern:
7 Answers
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Multiple DB Contexts in the Same DB and Application in EF 6 and Code First Migrations
...t uses EF 6. I am using Code First Migrations. I am using Areas in the app and would like to have different DbContexts in each area to break it up. I know EF 6 has ContextKey, but I can't find complete information on how to use it. Currently I can only use migrations one context at a time.
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Rotated elements in CSS that affect their parent's height correctly
...kes undefined behaviour according to the CSS 2 spec - so while I've tested and confirmed that it works in Chrome, Firefox, Safari, and Edge, I can't promise you that it won't break in a future browser release.
Short answer
Given HTML like this, where you want to rotate .element-to-rotate...
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Cannot truncate table because it is being referenced by a FOREIGN KEY constraint?
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After deleting large data, user have to shrink the tables and log files also to reclaim the disk space.
– Muhammad Yousaf Sulahria
Oct 22 '16 at 16:15
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How do you effectively model inheritance in a database?
...s has its own table. The base class has all the base class elements in it, and each class which derives from it has its own table, with a primary key which is also a foreign key to the base class table; the derived table's class contains only the different elements.
So for example:
class Person {
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Unique BooleanField value in Django?
...mplish this task, what I've done is override the save method for the model and have it check if any other model has the flag already set (and turn it off).
class Character(models.Model):
name = models.CharField(max_length=255)
is_the_chosen_one = models.BooleanField()
def save(self, *a...
How do I find duplicates across multiple columns?
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Duplicated id for pairs name and city:
select s.id, t.*
from [stuff] s
join (
select name, city, count(*) as qty
from [stuff]
group by name, city
having count(*) > 1
) t on s.name = t.name and s.city = t.city
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