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What does “opt” mean (as in the “opt” directory)? Is it an abbreviation? [closed]
... vendors to hold "Option" packages; i.e. packages that you might have paid extra money for. I don't recall seeing "/opt" on Berkeley BSD UNIX. They used "/usr/local" for stuff that you installed yourself.
But of course, the true "meaning" of the different directories has always been somewhat vagu...
为什么编译好的libcurl静态lib用不了？ - C/C++ - 清泛网 - 专注C/C++及内核技术
.... If you want to use the libcurl.dll and import lib, you don't need
any extra CFLAGS, but use one of the import libraries below
请参考：http://curl.haxx.se/docs/faq.html#Link_errors_when_building_libcur
在需要调用静态lib的工程（非libcurl源代码工程）预编译器中添...
Multi-line commands in GHCi
...ust not be trailing spaces on your lines. trailing whitespace counts as an extra Enter and breaks the multi-line block.
– Will Ness
May 12 at 6:16
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How do you create a random string that's suitable for a session ID in PostgreSQL?
I'd like to make a random string for use in session verification using PostgreSQL. I know I can get a random number with SELECT random() , so I tried SELECT md5(random()) , but that doesn't work. How can I do this?
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Converting JSONarray to ArrayList
I am downloading a JSON string and converting it to JSONArray. Im putting it into a listview and need to be able to delete from that listview later, and since JSONArray has no .remove method (Thanks Obama), I am trying to convert it to an arraylist.
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Performing Inserts and Updates with Dapper
...using (IDbConnection db = new SqlConnection(ConfigurationManager.ConnectionStrings["myDbConnection"].ConnectionString))
{
string insertQuery = @"INSERT INTO [dbo].[Customer]([FirstName], [LastName], [State], [City], [IsActive], [CreatedOn]) VALUES (@FirstName, @LastName, @State, @City, @IsActive...
How can I use redis with Django?
...o-redis for django cache backend.
Django-redis build on redis-py and added extra features related to django application.
Django-redis doc Github
Other libraries also exists.
Redis use cases and data types
Some use cases
Session cache
Real time analytics
Web caching
Leaderboards
Top Redis Use Case...
how to check if a file is a directory or regular file in python? [duplicate]
...if you've already got a stat structure, this allows you to avoid making an extra system call / disk seek via os.path.isfile or friends.
– Joshua Richardson
May 12 '14 at 18:39
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Format SQL in SQL Server Management Studio
...e functionality as Red Gate's SQL Prompt (SQL Prompt does, of course, have extra stuff, like snippets, quick object scripting, etc).
Feedback/feature requests are more than welcome, please give it a whirl if you get the chance!
Disclosure: This is probably obvious already but I wrote this library/...
Android- create JSON Array and JSON Object
...entsObj = new JSONObject();
studentsObj.put("Students", jsonArray);
String jsonStr = studentsObj.toString();
System.out.println("jsonString: "+jsonStr);
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