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How do you merge two Git repositories?
...it filter-branch on the repo you want to include.
– Jifeng Zhang
Oct 8 '13 at 12:07
6
Or read Eri...
Sort objects in an array alphabetically on one property of the array
... to shunt the work of managing sort logic and locale quirks to the system. If doing a case-insensitive sort is normal for the locale, as it is in english, this will be done for you: "Z" > 'a' // false "Z".localeCompare('a') // 1 If you wish to deviate from the locale's default, you can send alo...
SQLiteDatabase.query method
...as in SELECT * FROM ...
new String[] { "column1", "column2", ... } for specific columns as in SELECT column1, column2 FROM ... - you can also put complex expressions here:
new String[] { "(SELECT max(column1) FROM table1) AS max" } would give you a column named max holding the max value of column1
...
How long should SQL email fields be? [duplicate]
...really long but do you really need worry about these long Email addresses? If someone can't login with a 100-char Email, do you really care? We actually prefer they can't.
Some statistical data may shed some light on the issue. We analyzed a database with over 10 million Email addresses. These addr...
NHibernate ISession Flush: Where and when to use it, and why?
...ead wrap your calls on an ISession inside a using statement or manage the lifecycle of your ISession somewhere else.
From the documentation:
From time to time the ISession will execute the SQL statements needed to synchronize the ADO.NET connection's state with the state of objects held in memory....
PHP expresses two different strings to be the same [duplicate]
...063 will both be float(0) because they are too small.
For == in php,
If you compare a number with a string or the comparison involves
numerical strings, then each string is converted to a number and the
comparison performed numerically.
http://php.net/manual/en/language.operators.compari...
How do I unlock a SQLite database?
...ck database
In Linux and macOS you can do something similar, for example, if your locked file is development.db:
$ fuser development.db
This command will show what process is locking the file:
> development.db: 5430
Just kill the process...
kill -9 5430
...And your database ...
Make a float only show two decimal places
...
If anyone is curious as to how one does actually get 25.. @"%.f" does the trick. What is written above, does not.
– Alex Gray
Dec 3 '11 at 19:43
...
HashSet vs. List performance
...l only ever have on average 5 items in it. Over a large number of cycles, if a single item is added or removed each cycle, you may well be better off using a List<T>.
I did a test for this on my machine, and, well, it has to be very very small to get an advantage from List<T>. For a li...
Is there a “do … while” loop in Ruby?
...d he suggests using Kernel#loop, e.g.
loop do
# some code here
break if <condition>
end
Here's an email exchange in 23 Nov 2005 where Matz states:
|> Don't use it please. I'm regretting this feature, and I'd like to
|> remove it in the future if it's possible.
|
|I'm surprised...