Specifically, the command takes the value of the ConnectionURLString (the database connection URL) and issues a getConnection request using java.sql.DriverManager or a javax.sql.DataSource implementation (see the ij.dataSource property) to set the current connection to that database connection URL.

You have the option of specifying a name for your connection. Use the Set Connection command to switch between connections. If you do not name a connection, the system generates a name automatically.

You also have the option of specifying a named protocol previously created with the Protocol command or the ij.protocol.protocolName property.

If the connection requires a user name and password, supply those with the optional user and password parameters.

If the command succeeds, the connection becomes the current one, and ij displays a new prompt for the next command to be entered. If you have more than one open connection, the name of the connection appears in the prompt.

All further commands are processed against the new, current connection.