大约有 9,000 项符合查询结果(耗时:0.0268秒) [XML]

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Initialization of an ArrayList in one line

I wanted to create a list of options for testing purposes. At first, I did this: 31 Answers ...
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SQL: How to get the count of each distinct value in a column?

I have a SQL table called "posts" that looks like this: 1 Answer 1 ...
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SQL Server loop - how do I loop through a set of records

how do I loop through a set of records from a select? 8 Answers 8 ...
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How do I set $PATH such that `ssh user@host command` works?

...e tried adding export PATH=$PATH:$HOME/new_path to ~/.bashrc and ~/.profile on the remote machine, but executing ssh user@host "echo \$PATH" shows that the change has not been picked up (it shows /usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games). The remote machine is run...
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When should we use Observer and Observable?

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Reset Entity-Framework Migrations

I've mucked up my migrations, I used IgnoreChanges on the initial migration, but now I want to delete all my migrations and start with an initial migration with all of the logic. ...
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How to select all instances of a variable and edit variable name in Sublime

If I select a variable (not just any string) in my code, all other instances of that variable get a stroke (white outline) around them: ...
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What is the string length of a GUID?

I want to create a varchar column in SQL that should contain N'guid' while guid is a generated GUID by .NET ( Guid.NewGuid ) - class System.Guid. ...
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How to debug PDO database queries?

Before moving to PDO, I created SQL queries in PHP by concatenating strings. If I got database syntax error, I could just echo the final SQL query string, try it myself on the database, and tweak it until I fixed the error, then put that back into the code. ...
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A simple command line to download a remote maven2 artifact to the local repository?

I have a library that I distribute using maven 2. The typical user of this library doesn't use maven to build their applications, but is likely somewhat familiar with maven and probably has it installed. ...