https://learn.microsoft.com/pt-br/dotnet/api/system.data.oracleclient.oracledatareader.getoraclemonthspan?view=netframework-4.8.1
OracleDataReader.GetOracleMonthSpan(Int32) Method (System.Data.OracleClient) | Microsoft Learn
Gets the value of the specified column as an OracleMonthSpan object.
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