What is the difference between SQLConnection and OLEDBConnection?

• SqlConnection: Used specifically for connecting to SQL Server databases.
• OleDbConnection: A more general connection class that can connect to a variety of

data sources, such as MS Access, Excel, Oracle, etc.

Example:

Use SqlConnection for SQL Server:

SqlConnection sqlConnection = new SqlConnection(connectionString);

• Use OleDbConnection for Access or other databases:

OleDbConnection oleDbConnection = new

OleDbConnection(connectionString);