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Difference between Initial Catalog and Database keyword in connection string

What is the main difference between Initial Catalog and Database Keyword in a connection string?

Solution

  • The only difference is the name.

    These can be used interchangeably.

    See the documentation of SqlConnectionStringBuilder.InitialCatalog, under remarks:

    This property corresponds to the "Initial Catalog" and "database" keys within the connection string.

    (emphasis mine)

    Update:

    New version namespace Microsoft.Data.SqlClient.