private DataTable GetSchema_OracleDA() { OracleConnection conn; string connetionString = GetConnectionString_OracleDA(); conn = new OracleConnection(connetionString); try { conn.Open(); DataTable schemaTable = conn.GetSchema(); return schemaTable; } catch (OracleException ex) { MessageBox.Show("Exception in GetSchema_OracleDA - " + ex.Message); LogMessage("Exception in GetSchema_OracleDA - " + ex.Message, MessageSeverity.Error); } finally { conn.Close(); } return null; }