COM DDTEK JDBC SQLSERVER SQLSERVERDRIVER DRIVER

Using the AuthenticationMethod Property The AuthenticationMethod connection property controls which authentication mechanism the driver uses when establishing connections. SSL secures the integrity of your data by encrypting information and providing authentication. If this property is not specified, the truststore password is specified by the javax. A server-side database cursor is not created if the requested result set type is a forward-only result set. If set to 0, the driver does not try to reconnect after the initial unsuccessful attempt. When using these methods to update long data as Blobs or Clobs, the updates are made to the local copy of the data contained in the Blob or Clob object. Network authentication must be provided by Windows Active Directory on one of the following operating systems:

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SelectMethod In most cases, using server-side database cursors impacts performance negatively. Distributed Transaction Cleanup Connections associated with distributed transactions can become orphaned if the connection to the server is lost before the transaction has completed. Encrypting login requests, but not data, is useful for the following scenarios: Parameter metadata can be returned for a Select statement if one of the following conditions is true: Retrieving and updating long data using JDBC methods designed for Blobs and Clobs provides some of the same advantages as retrieving and updating Blobs and Clobs.

For applications that access both Unicode and non-Unicode columns, a data type mismatch still occurs for some columns if the driver always sends String parameter values to the server in only one format.

The default is 0. The Performance Tuning Wizard leads you step-by-step through a series of questions about your application. When server-side updatable cursors are used with sensitive result sets that were generated from a database table that contains a primary key, the following changes you make to the result set are visible: LongDataCacheSize To improve performance when your application retrieves images, pictures, long text, or binary data, you can disable caching for long data on the client if your application retrieves long data column values in the order they are defined in the result set.

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The MS SQL Server Driver

Any certificate from the server must be issued by a trusted CA in the truststore file. The value is a string jdbd to a maximum of characters.

If SSL encryption or certificate validation is not enabled, any value specified for this property is ignored. If the driver cannot load the DLL, the driver uses Kerberos authentication.

Connecting to a Database

For example, the following command requests a TGT from the server with a lifetime of sqlserberdriver hours, which is renewable for 5 days: Own and Others Deletes are visible. For example, to connect to Oracle instance named test on the server named corpserver1 on portthe following URL would be used: The application can now use the connection. Determines whether the driver uses server-side cursors when an updatable result set is requested.

This value is a string up to a maximum of 12 characters. Because the need to write result set data to disk is eliminated, the driver processes the data more efficiently.

Typically, implicit transaction mode is more efficient than explicit transaction mode because the driver does not have to send commands to start a transaction and a transaction is not started until it is needed. The driver interprets the data returned by these methods using the ISO latin 1 encoding. For example, if your application sets Statement.

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When required, connections from clients that do support SSL encryption fail. When returning forward-only result sets, the rows are retrieved from the server in blocks.

Data Source and Driver Classes

The optimal value depends on the typical size of data inserted, updated, or returned by the application sqlservwrdriver the environment in which it is running. If the output parameter is char or varchar, the driver returns the output parameter value, but the returned value is limited to characters.

Performance Considerations Setting the following connection properties for the SQL Server driver as described in the following list can improve performance for your applications. If set to 0 the default and the ResultSetMetaData. Because result set data may be written to disk, the driver may have to reformat sqlserverdtiver data to write it correctly to disk. Login request and data are encrypted.

This value is a string up to a maximum of characters. The new Database connection property can be used as a synonym of the DatabaseName connection property.

When the server is not configured for SSL, but your application still requires a minimum degree of security. The transaction group ID that identifies any transactions initiated by the cok. If the database server does not support SSL, the connection fails and the driver throws an exception.