Optimizations for MGMomentum Backtest
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@@ -11,6 +11,7 @@ namespace MarketData.DataAccess
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private AnalystRatingsDA()
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{
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}
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public static AnalystRatings GetAnalystRatings()
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{
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MySqlConnection sqlConnection = null;
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@@ -62,6 +63,7 @@ namespace MarketData.DataAccess
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if (null != sqlConnection) sqlConnection.Close();
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}
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}
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public static AnalystRatings GetAnalystRatings(String symbol, DateTime minDate,DateTime maxDate)
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{
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MySqlConnection sqlConnection = null;
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@@ -118,6 +120,7 @@ namespace MarketData.DataAccess
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if (null != sqlConnection) sqlConnection.Close();
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}
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}
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public static DateTime GetMaxDateNoZacks()
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{
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MySqlConnection sqlConnection = null;
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@@ -149,6 +152,7 @@ namespace MarketData.DataAccess
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if (null != sqlConnection) sqlConnection.Close();
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}
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}
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public static AnalystRatings GetAnalystRatingsMaxDateNoZacks(String symbol,DateTime maxDate)
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{
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MySqlConnection sqlConnection = null;
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@@ -196,6 +200,61 @@ namespace MarketData.DataAccess
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if (null != sqlConnection) sqlConnection.Close();
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}
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}
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public static Dictionary<String,AnalystRatings> GetAnalystRatingsDowngradesMaxDateNoZacks(List<String> symbols,DateTime maxDate)
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{
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MySqlConnection sqlConnection = null;
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MySqlDataReader sqlDataReader = null;
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MySqlCommand sqlCommand =null;
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Dictionary<String,AnalystRatings> analystRatings = new Dictionary<String,AnalystRatings>();
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String strQuery = null;
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try
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{
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StringBuilder sb = new StringBuilder();
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sqlConnection = SqlUtils.CreateMySqlConnection(MainDataSource.Instance.LocateDataSource("market_data"));
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sb.Append("SELECT B.date, B.symbol,B.company, B.brokerage_firm, B.type, B.ratings_change, B.price_target from ");
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sb.Append("(SELECT date, symbol, upper(company) AS company, brokerage_firm, TYPE, ratings_change, price_target, ROW_NUMBER() OVER (");
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sb.Append(" PARTITION BY symbol ORDER BY DATE DESC) AS rownum from analystratings ");
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sb.Append("WHERE symbol IN ").Append(SqlUtils.CreateInClause(symbols)).Append(" AND date<=").Append(SqlUtils.ToSqlDate(maxDate,true));
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sb.Append(" AND type='Downgrades')B");
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sb.Append(" WHERE B.rownum<=1");
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strQuery = sb.ToString(); ;
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sqlCommand = new MySqlCommand(strQuery, sqlConnection);
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sqlCommand.CommandTimeout = SqlUtils.COMMAND_TIMEOUT;
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sqlDataReader = sqlCommand.ExecuteReader();
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while (sqlDataReader.Read())
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{
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AnalystRating analystRating = new AnalystRating();
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analystRating.Date = sqlDataReader.GetDateTime(0);
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analystRating.Symbol = sqlDataReader.GetString(1);
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analystRating.CompanyName = sqlDataReader.GetString(2);
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analystRating.BrokerageFirm = sqlDataReader.GetString(3);
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analystRating.Type = sqlDataReader.GetString(4);
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analystRating.RatingsChange = sqlDataReader.GetString(5);
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if (!sqlDataReader.IsDBNull(6)) analystRating.PriceTarget = sqlDataReader.GetDouble(6);
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if(!analystRatings.ContainsKey(analystRating.Symbol))
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{
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analystRatings.Add(analystRating.Symbol,new AnalystRatings());
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}
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analystRatings[analystRating.Symbol].Add(analystRating);
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}
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return analystRatings;
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}
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catch (Exception exception)
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{
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MDTrace.WriteLine(LogLevel.DEBUG,exception);
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return null;
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}
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finally
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{
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if(null!=sqlCommand)sqlCommand.Dispose();
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if (null != sqlDataReader) {sqlDataReader.Close();sqlDataReader.Dispose();}
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if (null != sqlConnection) sqlConnection.Close();
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}
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}
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public static AnalystRatings GetAnalystRatingsMaxDate(String symbol,DateTime maxDate)
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{
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MySqlConnection sqlConnection = null;
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@@ -251,6 +310,7 @@ namespace MarketData.DataAccess
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if (null != sqlConnection) sqlConnection.Close();
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}
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}
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public static AnalystRatings GetAnalystRatings(String symbol, DateTime date)
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{
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MySqlConnection sqlConnection = null;
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@@ -306,6 +366,7 @@ namespace MarketData.DataAccess
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if (null != sqlConnection) sqlConnection.Close();
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}
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}
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public static AnalystRatings GetAnalystRatings(DateTime date)
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{
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MySqlConnection sqlConnection = null;
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@@ -359,6 +420,7 @@ namespace MarketData.DataAccess
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if (null != sqlConnection) sqlConnection.Close();
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}
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}
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public static AnalystRatings GetAnalystRatings(String symbol)
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{
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MySqlConnection sqlConnection = null;
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@@ -413,7 +475,7 @@ namespace MarketData.DataAccess
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if (null != sqlConnection) sqlConnection.Close();
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}
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}
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// ****************************************************************************************************************************************************
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public static List<String> GetAnalystRatingsDates()
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{
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MySqlConnection sqlConnection = null;
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@@ -450,6 +512,7 @@ namespace MarketData.DataAccess
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if (null != sqlConnection) sqlConnection.Close();
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}
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}
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public static bool InsertAnalystRatings(AnalystRatings analystRatings)
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{
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MySqlConnection sqlConnection = null;
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@@ -499,6 +562,7 @@ namespace MarketData.DataAccess
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if (null != sqlConnection) sqlConnection.Close();
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}
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}
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public static bool ContainsAnalystRating(AnalystRating analystRating)
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{
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MySqlConnection sqlConnection = null;
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@@ -535,6 +599,7 @@ namespace MarketData.DataAccess
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if (null != sqlConnection) sqlConnection.Close();
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}
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}
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private static bool DeleteAnalystRatings(AnalystRatings analystRatings, MySqlConnection sqlConnection, MySqlTransaction sqlTransaction)
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{
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try
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