只有当connection是同一种configuration的时候, 他们才可以被放入同一个pool中. ADO.NET会同时维护多个pool, 每个pool对应一种configuration. Connection通过connection string(连接字符串)来分类到不同的pool中, 另一个标准就是当ingetrated security被使用的时候的Windows identity. Connection还按是否被列入transaction而...
Clear the pool Show 5 more Connecting to a database server typically consists of several time-consuming steps. A physical channel such as a socket or a named pipe must be established, the initial handshake with the server must occur, the connection string information must be parsed, the connec...
Clear the pool Show 5 more Connecting to a database server typically consists of several time-consuming steps. A physical channel such as a socket or a named pipe must be established, the initial handshake with the server must occur, the connection string information must be parsed, the connec...
Connecting to a database server typically consists of several time-consuming steps. A physical channel such as a socket or a named pipe must be established, the initial handshake with the server must occur, the connection string information must be parsed, the connection must be authenticated by...
Not all connections in SQL Server Management Studio are pooled. Some, such as the connection used for each query editor, are explicitly not pooled. There are several reasons for this, including the need to keep a specific session ID (SPID) associated with the feature, or to ensure that ...
Clear the pool Show 5 more Connecting to a database server typically consists of several time-consuming steps. A physical channel such as a socket or a named pipe must be established, the initial handshake with the server must occur, the connection string information must be parsed, the connec...
首先我们需要一个数据库连接字符串,例如:"Data Source=server;Initial Catalog=test;User ID=sa;Password=123456;" 其实这个连接字符串的配置对应着一个类:System.Data.SqlClient.SqlConnectionStringBuilder,在这个类中详细的规定了联机的具体参数, 下面看看这个类的具体代码: ...
SQL ServerODBC DriverUserSQL ServerODBC DriverUser发送连接请求发送验证请求返回验证结果返回连接状态 在这个过程中,用到的Makefile示例代码如下: all:test_connectiontest_connection:@echo"Testing connection to SQL Server"odbc_connection_test.exe 1.
注册给定的事件侦听器,以便在此 SQLServerPooledConnection 对象发生事件时通知该侦听器。语法复制 public void addConnectionEventListener(javax.sql.ConnectionEventListener listener) 参数listenerConnectionEventListener 对象。注解此addConnectionEventListener 方法是由 javax.sql.Pool...
今天利用spring的IOC容器连接数据库的时候又遇到了bug,所以赶紧在这里记录一下。 情况是这样的: 在IOC容器中配置连接mysql数据库的时候,进行连接测试,出现了这样的报错。 java.sql.SQLException No suitable driver 意思就是数据库驱动无法连接了, 然后就去网上查找相关解决,网上的方法也很多,但是都不是我遇到的, ...