connection

Can I still use datasource=.\SQLEXPRESS or do I need to change it to : machine_name\SQLEXPRESS for a local instance of SQL Server 2008 Express in C#? My connection string worked fine in SQL Express 2005, but with the same settings no longer works for 2008. Assuming the instance name is indeed SQLEXPRESS , using .\SQLEXPRESS will work locally. Use the SQL Server Configuration Manager to find out the correct instance name. What is the final purpose of the app as it more conventional to include pc name. 来源： https://stackoverflow.com/questions/6139299/can-i-use-datasource-sqlexpress-or-do-i-need

I have an application that uses both grequests and multiprocessing.managers for a combination of IPC communication and Asynchronous RESTful communications over HTTP. It seems that grequests , in using gevent.monkey 's patch_all() method, breaks the multiprocessing.connection module used by the multiprocessing.manager.SyncManager class and its derivatives. This is apparently not an isolated issue, but affects any use case that implements multiprocessing.connetion , such as multiprocessing.pool , for example. Drilling down into the code in gevent/monkey.py , I found that the swapping of the

If say I need to run two separate SQL statements against two separate databases. Right now I do (pseudocode): Try{ declare variable connectionA to DatabaseA declare variable connectionB to DatabaseB connectionA.open() connectionB.open() declare variable SQLCmdA with ConnectionA and one SQL statement declare variable SQLCmdB with ConnectionB and another SQL statement SQLCmdA.executeNonQuery() SQLCmdB.executeNonQuery() } Catch () { print error message } Finally(){ connectionA.close() connectionB.close() SQLCmdA.Dispose() SQLCmdB.Dispose() } The above seems very clumsy. And if I have three

This question already has an answer here: ConfigurationManager keeps getting Machine.config connection string 4 answers I'm writing a windows service and I need the list of all connection strings defined in App.config. I Used System.Configuration.ConfigurationManager.ConnectionStrings to get all connections. it always return this extra connection: data source=.\SQLEXPRESS;Integrated Security=SSPI;AttachDBFilename=|DataDirectory|aspnetdb.mdf;User Instance=true that I think is added in machine.config. my App.config is: <add name="AvmPortalConnectionString" connectionString="Data Source=.;Initial

With Rails 4.1.1, using mysql2 adapter: I am using an ActiveRecord connection to execute a multiple insert in a MySQL table: ActiveRecord::Base.connection.execute %Q{ INSERT INTO table (`user_id`, `item_id`) SELECT 1, id FROM items WHERE items.condition IS NOT NULL } This works fine, do the job, and returns nil . Is there a way to get the number of affected rows ? (avoiding the need to execute another query) I have found the documentation of the execute method somewhat sparse. You can use connection.update method which executes expression and returns affected rows count. ActiveRecord::Base

For a test I set up user mysql user with % access. When I try to connect from a remote machine I get: Enter password: Then immediately get this: ERROR 2003 (HY000): Can’t connect to MySQL server on ‘xxxxxxx’ (1) Any ideas Try to comment the bind-address = 127.0.0.1 in your /etc/mysql/my.cnf # security: # using "localhost" in connects uses sockets by default # skip-networking # bind-address = 127.0.0.1 --- commented and watch the results. If not work try to use the IP address and if still not work. roll back the original file. Verify that you can connect to the mysql port with telnet from that

I've built a simple web application that does some communication through a node.js server using socket.io. When a user connects, node communicates back info which tells the client to subscribe to certain events. That works fine. But if you let the browser set idle, the client ends up subscribed to the events twice. The subscription process works like this: When a user connects node.js gets a 'adduser' message The two key things that hapen in that function are this: socket.on('adduser', function(data) <snip> socket.emit('nodeinfo', {node_id: NODE_ID}); socket.emit('update', {msg: 'you are

This question is unlikely to help any future visitors; it is only relevant to a small geographic area, a specific moment in time, or an extraordinarily narrow situation that is not generally applicable to the worldwide audience of the internet. For help making this question more broadly applicable, visit the help center . Closed 6 years ago . First of all, yes, this is an exact duplicate of a wrongly closed question . I have the exact same problem as the original poster (and just like him, I haven't been able to find anyone else except him with this problem). I've been struggling with this

In my application I use connection to Oracle, when connection lost and I try to re-connect I receive exception: java.sql.SQLException: Io exception: Broken pipe at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:124) at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:161) at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:273) at oracle.jdbc.driver.T4CStatement.fetch(T4CStatement.java:540) at oracle.jdbc.driver.OracleResultSetImpl.close_or_fetch_from_next(OracleResultSetImpl.java:264) at oracle.jdbc.driver.OracleResultSetImpl