大约有 41,000 项符合查询结果(耗时:0.0402秒) [XML]
Transaction isolation levels relation with locks on table
...
I want to understand the lock each transaction isolation takes on the table
For example, you have 3 concurrent processes A, B and C. A starts a transaction, writes data and commit/rollback (depending on results). B just executes a SELECT st...
Easiest way to read from and write to files
There are a lot of different ways to read and write files ( text files , not binary) in C#.
12 Answers
...
What is the purpose of a self executing function in javascript?
... blocks of JavaScript code.
For example, as mentioned in a comment by Alexander:
(function() {
var foo = 3;
console.log(foo);
})();
console.log(foo);
This will first log 3 and then throw an error on the next console.log because foo is not defined.
...
How do you specify that a class property is an integer?
I'm experimenting with TypeScript, and in the process of creating a class with an "ID" field that should be an integer, I have gotten a little confused.
...
Handle Guzzle exception and get HTTP body
I would like to handle errors from Guzzle when the server returns 4xx and 5xx status codes. I make a request like this:
5 A...
Resolving a Git conflict with binary files
...s or --theirs option for cases like this. So if you have a merge conflict, and you know you just want the file from the branch you are merging in, you can do:
$ git checkout --theirs -- path/to/conflicted-file.txt
to use that version of the file. Likewise, if you know you want your version (not t...
Random number from a range in a Bash Script
I need to generate a random port number between 2000-65000 from a shell script. The problem is $RANDOM is a 15-bit number, so I'm stuck!
...
When should static_cast, dynamic_cast, const_cast and reinterpret_cast be used?
...cit conversions between types (such as int to float, or pointer to void*), and it can also call explicit conversion functions (or implicit ones). In many cases, explicitly stating static_cast isn't necessary, but it's important to note that the T(something) syntax is equivalent to (T)something and s...
Entity Framework vs LINQ to SQL
...LINQ to SQL only supports 1 to 1 mapping of database tables, views, sprocs and functions available in Microsoft SQL Server. It's a great API to use for quick data access construction to relatively well designed SQL Server databases. LINQ2SQL was first released with C# 3.0 and .Net Framework 3.5.
...
Getting a 404 from WMSvc via MSDeploy.exe
...ws 8 to Windows Server 2012 (IIS 8) with Web Management Services installed and working, I can use IIS Manager on W8 box to manage the remote server but I get a 404.7 from WMSvc when I execute the following command:
...