connection

I have mongodb where my data is stored. I am using SPSS where I have do some data analysis. Can someone help me in connecting SPSS to mongodb. Thank you. Are you using SPSS Modeler or Statistics? In both cases you can access MongoDB using R. Both Statistics and Modeler have integration with R. So you can just use the R package 'rmongodb' and connect to your MongoDB. Here you have some links: https://docs.compose.io/languages/r.html http://www.r-bloggers.com/r-and-mongodb/ Remember to use R with Statistics you need to install the plugin 'IBM SPSS Statistics - Essentials for R' ftp://public.dhe

i have this android application that requires to load data from a remote server via the internet. this update-functionaliy obviously requires the device to not only be connected to some kind of network, but also to the internet. so: is want to schedule the update-service to some date and when it starts, it should determine whether it actually CAN reach the target server or not. therefore, a simple "is the device connected to wifi?" does not suffice, as the device may be connected to a wireless network that does not offer internet access. something like a PING is required... whats the easiest /

I'm currently learning some database tricks in Java and I found this nice book I'm reading. At some point, it encourages me to try a manual database connection with the following class: import java.sql.DriverManager; import java.sql.Connection; import java.sql.PreparedStatement; import java.sql.ResultSet; public class DemoSelect { public static void main(final String[] arguments) { // Connection parameters String usr = "sa"; String pwd = ""; String driver = "org.hsqldb.jdbcDriver"; String url = "jdbc:hsqldb:hsql://localhost/xdb"; Connection con = null; PreparedStatement pstm = null; ResultSet

Does anyone know how to configure Tomcat 6.0 as a standalone web server (on Windows XP) that can handle 20,000 simultaneous connections? Please help me. If you configure it to use the HTTP NIO connector and give it enough memory, it must in theory be able to do so. With the normal HTTP connector, the performance will start to slowdown around 1K connections and then drastically drop around 5K simultaneous connections, simply because each connection implicitly uses its own thread. The HTTP NIO connector has enough with a single thread which scales much, much better. Basically all you need to do

I'm building an application which requires connecting 2 database. first one is static and another one is dynamic. config/database.php is like 'mysql' => array ( 'driver' => 'mysql', 'host' => '127.0.0.1', 'port' => '3306', 'database' => 'blog', 'username' => 'root', 'password' => '', 'unix_socket' => '', 'charset' => 'utf8mb4', 'collation' => 'utf8mb4_unicode_ci', 'prefix' => '', 'strict' => true, 'engine' => NULL, ), 'business2' => array ( 'driver' => 'mysql', 'host' => '127.0.0.1', 'port' => '3306', 'database' => 'blog2', 'username' => 'root', 'password' => '', 'unix_socket' => '', 'charset'

I'm using the code from Apple's Document to do some HTTP communication. I can connect to the URL successfully, but I failed to receive the data from my server. // create the request NSURLRequest *theRequest=[NSURLRequest requestWithURL:[NSURL URLWithString:@"http://..."] cachePolicy:NSURLRequestUseProtocolCachePolicy timeoutInterval:60.0]; // create the connection with the request // and start loading the data NSURLConnection *theConnection=[[NSURLConnection alloc] initWithRequest:theRequest delegate:self]; if (theConnection) { // Create the NSMutableData that will hold // the received data //

I am trying to connect to the Echo Test Websocket using the Poco C++ libraries. In order to do so here is my code which should set up the Websocket: HTTPClientSession cs("echo.websocket.org"); HTTPRequest request(HTTPRequest::HTTP_GET, "/ws"); HTTPResponse response; WebSocket* m_psock = new WebSocket(cs, request, response); m_psock->close(); //close immidiately However it does not work: I am getting an error message like this: Poco::Exception: WebSocket Exception: Cannot upgrade to WebSocket connection: Not Found Can anybody help? The 'Not Found' error is the standard HTTP 404 Not Found