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Git: Recover deleted (remote) branch
I need to recover two Git branches that I somehow deleted during a push.
9 Answers
9
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How to select the first element with a specific attribute using XPath
...e:
(/bookstore/book[@location='US'])[1]
This will first get the book elements with the location attribute equal to 'US'. Then it will select the first node from that set. Note the use of parentheses, which are required by some implementations.
Note, this is not the same as /bookstore/book[1][@l...
What languages are Windows, Mac OS X and Linux written in?
... many userland apps are in Python, KDE is all C++
All kernels will use some assembly code as well.
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How to convert byte array to string and vice versa?
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Your byte array must have some encoding. The encoding cannot be ASCII if you've got negative values. Once you figure that out, you can convert a set of bytes to a String using:
byte[] bytes = {...}
String str = new String(bytes, "UTF-8"); // for UTF-8 ...
Python memoising/deferred lookup property decorator
...or but only upon first read. These attributes do not change over the lifetime of the instance, but they're a real bottleneck to calculate that first time and only really accessed for special cases. Hence they can also be cached after they've been retrieved from the database (this therefore fits the ...
How to change column datatype in SQL database without losing data
...nto 1 (BIT = true).
ALTER TABLE dbo.YourTable
ALTER COLUMN YourColumnName BIT
The other option would be to create a new column of type BIT, fill it from the old column, and once you're done, drop the old column and rename the new one to the old name. That way, if something during the conversio...
How to declare a variable in MySQL?
...lized, it has a value of NULL and a type of string.
SELECT @var_any_var_name
You can initialize a variable using SET or SELECT statement:
SET @start = 1, @finish = 10;
or
SELECT @start := 1, @finish := 10;
SELECT * FROM places WHERE place BETWEEN @start AND @finish;
User variables can...
How to join int[] to a character separated string in .NET?
...nts);
EDIT:
I see several solutions advertise usage of StringBuilder. Someone complaints that Join method should take an IEnumerable argument.
I'm going to disappoint you :) String.Join requires array for a single reason - performance. Join method needs to know the size of the data to effectivel...
SQL Server: Is it possible to insert into two tables at the same time?
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In one statement: No.
In one transaction: Yes
BEGIN TRANSACTION
DECLARE @DataID int;
INSERT INTO DataTable (Column1 ...) VALUES (....);
SELECT @DataID = scope_identity();
INSERT INTO LinkTable VALUES (@ObjectID, @DataID);
C...
Convert string to nullable type (int, double, etc…)
I am attempting to do some data conversion. Unfortunately, much of the data is in strings, where it should be int's or double, etc...
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