ADO.NET: context connections

At least connections to SQL Server (System.Data.SqlClient.SqlConnection) and Oracle (Oracle.DataAccess.Client.OracleConnection) can be established as so-called context connections.

Such context connections are useful if the (CLR-) method needs to connect to the same database that the method was alread called from, for example because the method was called in a stored procedure or was used in view or select statement.

In that case, a System.Data.Common.DbConnection can be established with the connection string context connection=true.