connection

问题 I am developing a db application in C# and my current connection string is @"Provider=Microsoft.ACE.OLEDB.12.0;Data Source=D:\Shop.accdb;Persist Security Info=False;" How can I modify it so that the db is in the folder of the project and not in D? I mean I am planning to send the project to a friend so I don't want to include the full path but just the folder of the project. Thank you in advance! 回答1: Change your connection string to @"Provider=Microsoft.ACE.OLEDB.12.0;Data Source=

问题 I have problems with my router when downloading through steam and other programs, such as the internet losing connection with the router. I cant plug my pc to my router using cable so i made a solution: and the other one \Every X secounds disconect and connect to internet But the problem is i want to make it more efficient so i would like a command that does this: :a \Check connection \if connected then goto a \if noconnection disconect and connect to internet i get problems with check

问题 oracle database connectivity issue in php with oci_connect function is undefined on linux centOs 7 follows this article too. Centos 6 PHP OCI8 extention is not working (Undefined function oci_connect()) Not found perfect solution for this. 回答1: You need install [OCI8] extension in php.ini: Install both RPM packages: rpm -ivh instantclient-basic-linux.XXX.rpm rpm -ivh instantclient-sdk-linux.XXX.rpm Install some prerequisite: yum install php-pear yum install php-devel Download the OCI8

问题 we are in the process of converting an ADP project into ACCDB as ADP's are no longer supported in Office 2013 version. I have the below code to change the application connection in ADP : Function ChangeADPConnection(strServerName As String, strDBName As _ String, Optional strUN As String, Optional strPW As String) As Boolean Dim strConnect As String On Error GoTo EH: Application.CurrentProject.CloseConnection 'The Provider, Data Source, and Initial Catalog arguments are required. strConnect =

问题 I recently started maintaining an old EJB2 application running on OC4J. That includes EJB doclet and other horrible horrible things. Currently, each method creates a ConnectionFactory that queries JNDI for a Datasource , which then creates a connection. This leads to a lot of boiler plate code. My question now is: is it safe to do this only once per stateless session bean, and reuse the same connection? ejbCreate() would get the connection from JNDI, and then close it in ejbRemove() . Would

问题 I created an EC2 instance and added ALL TCP and UDP ports. ICMP also... Started my play application with both port 9000 and 80, neither worked out. The application starts, I can connect to it from the instance but I cannot connect to it from outside. telnet instance_dns_name 9000 fails whereas telnet instance_dns_name 3389 works. I don't know what I am missing. The same issue happened in Microsoft's Azure too. May it be about the region? 回答1: One more important thing... If you have Amazon EC2

问题 I've been at this for a few days now and just can't crack the problem. I've also put it up on the Ubuntu forum and heard nothing. Basically, I have a local socket in /tmp/mysockets which I create successfully in a php script-- if (($sock = socket_create(AF_UNIX, SOCK_STREAM,0)) === false) { echo "socket_create() failed: reason: " . socket_strerror(socket_last_error()) . "\n"; exit(); } but to which I cannot connect, via if (socket_connect($sock, $sock_str) === false) { echo "socket_connect()

问题 I am Net beans user and I am forbidden to use any other database except Cassandra so I install it simply from an open source. But it did not ask me for any username or password while installing Cassandra(So I do not its username and password) but Net beans always ask password and username to connect it to any data base(Like Cassandra & Oracle). & I do not know the Username & password for Cassandra... can you help me how to find Username and password for Cassandra And Net beans connector to

问题 i'm building a web application and i want to use "Connection Pooling" because of the benefits that came with it. I read some tutorials but i really don't understand what i need to do. If someone could give me a north, i appreciate. I'm using JSP/Servlet, MySQL, Tomcat 6 and Netbeans 6.9.1. Best regards, Valter Henrique. 回答1: Have you read http://tomcat.apache.org/tomcat-6.0-doc/jndi-datasource-examples-howto.html#MySQL_DBCP_Example? It shows you all the steps to access your database from a

问题 Well, I know there was some topic about that, but believe me - i tried everything and still didn't get answer how to solve that issue. Error: The specified named connection is either not found in the configuration, not intended to be used with the EntityClient provider, or not valid. In app.config i have connection string: <add name="GetProductsEntities" connectionString="metadata=res://*/GetProductsModel.csdl|res://*/GetProductsModel.ssdl|res://*/GetProductsModel.msl;provider=System.Data