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Caveats of select/poll vs. epoll reactors in Twisted
... cost of a select call goes roughly with the value of the highest numbered file descriptor you pass it. If you select on a single fd, 100, then that's roughly twice as expensive as selecting on a single fd, 50. Adding more fds below the highest isn't quite free, so it's a little more complicated t...
How to use an existing database with an Android application [duplicate]
I have already created an SQLite database. I want to use this database file with my Android project. I want to bundle this database with my application.
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What is App.config in C#.NET? How to use it?
I have done a project in C#.NET where my database file is an Excel workbook. Since the location of the connection string is hard coded in my coding, there is no problem for installing it in my system, but for other systems there is.
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What is the difference between Trap and Interrupt?
...ted by the hardware (devices like the hard disk, graphics card, I/O ports, etc). These are asynchronous (i.e. they don't happen at predictable places in the user code) or "passive" since the interrupt handler has to wait for them to happen eventually.
You can also see a trap as a kind of CPU-intern...
Fast way to discover the row count of a table in PostgreSQL
...block happens to hold wider than usual rows, the count is lower than usual etc.
Dead tuples or a FILLFACTOR occupy space per block. If unevenly distributed across the table, the estimate may be off.
General rounding errors.
In most cases the estimate from pg_class will be faster and more accurate....
How to execute an .SQL script file using c#
...talog=ccwebgrity;Data Source=SURAJIT\SQLEXPRESS";
string script = File.ReadAllText(@"E:\Project Docs\MX462-PD\MX756_ModMappings1.sql");
SqlConnection conn = new SqlConnection(sqlConnectionString);
Server server = new Server(new ServerConnection(conn));
server.Conn...
How to locate the vimrc file used by vim editor?
Is there a command in the vim editor to find the .vimrc file location?
1 Answer
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Get file name from URI string in C#
I have this method for grabbing the file name from a string URI. What can I do to make it more robust?
8 Answers
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Difference between fprintf, printf and sprintf?
...nput stream) or consumer (output stream) of bytes. It can correspond to a file on disk, to a pipe, to your terminal, or to some other device such as a printer or tty. The FILE type contains information about the stream. Normally, you don't mess with a FILE object's contents directly, you just pas...
Maven: How to include jars, which are not available in reps into a J2EE project?
...t up your own repository, perhaps this will help.
You can use the install-file goal of the maven-install-plugin to install a file to the local repository. If you create a script with a Maven invocation for each file and keep it alongside the jars, you (and anyone else with access) can easily instal...