Shulou(Shulou.com)06/01 Report--

Download the latest version of UniDAC

Universal Data Access Components (UniDAC) is a general database access component that provides direct access to multiple databases, such as Delphi, C++Builder, Lazarus (and Free Pascal), Mac OS X, iOS, Android, Linux and 64 and 32-bit FreeBSD for Windows. We will focus our long-term experience on this widget to provide unified database connection access (such as oracle, Microsoft SQL, etc.). This means that you can easily switch different databases between your projects and create cross-database application interfaces.

In disconnect mode, the connection can be opened only when needed. After all server calls are made, the connection is automatically closed until the next server call is required. The dataset remains open when the connection is closed. Disconnect mode can be useful for saving server resources and operating in unstable or expensive networks. The disadvantage of using the disconnect mode is that it takes some time to authorize each connection. If the connection is often closed and opened, it slows down the application. We recommend using pools to solve this problem.

To enable disconnect mode, set TCustomDAConnection.Options.DisconnectedMode to True.

In disconnect mode, open the connection to execute the request to the server (if it is not already open), and automatically close the connection if it is no longer needed. If the connection is explicitly opened (the Connect method is called or the Connected property is explicitly set to True), it does not close until the Disonnect method is called or the Connected property is explicitly set to False.

The following settings are recommended in disconnect mode:

one

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.