connection-pooling.md

title	description	author	ms.author	ms.date	ms.service	ms.subservice	ms.topic
Connection pooling	Learn about connection pooling, an optimization technique that ADO.NET uses to minimize the cost of opening connections to data sources.	David-Engel	davidengel	11/13/2020	sql	connectivity	conceptual

Connection pooling

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Connecting to a data source can be time consuming. To minimize the cost of opening connections, ADO.NET uses an optimization technique called connection pooling, which minimizes the cost of repeatedly opening and closing connections.

In this section

SQL Server Connection Pooling (ADO.NET)
Provides an overview of connection pooling and describes how connection pooling works in SQL Server.

See also

• Retrieving and modifying data in ADO.NET
• Microsoft ADO.NET for SQL Server