chore: deploy initial linqpad queries

date updates/query1.linq

@@ -0,0 +1,16 @@
+<Query Kind="Statements" />
+
+var startDate = DateTime.Now.Date;
+var endOfMonth = startDate.AddMonths(1).AddDays(-1).Date;
+endOfMonth.Dump();
+endOfMonth.Subtract(startDate).TotalDays.Dump();
+endOfMonth = endOfMonth.AddMonths(1).AddDays(-1).Date;
+endOfMonth.Dump();
+endOfMonth.Subtract(startDate).TotalDays.Dump();
+endOfMonth = endOfMonth.AddMonths(1).AddDays(-1).Date;
+endOfMonth.Dump();
+endOfMonth.Subtract(startDate).TotalDays.Dump();
+$"{endOfMonth:d}".Dump();
+endOfMonth.ToShortDateString().Dump();
+$"{endOfMonth}".Dump();
+endOfMonth.ToString().Dump();

date updates/query2.linq

@@ -0,0 +1,63 @@
+<Query Kind="Program" />
+
+void Main()
+{
+	var prefix = "fpes";
+	if (prefix != "") prefix += ".";
+	var baselineEndDate = new DateTime(2018, 4, 1);
+	Enumerable.Range(0, 12).ToList()
+	.Aggregate("", (x, y) =>
+	{
+		var result = $"{x} or\r\n({prefix}FiscalYearID = {FiscalMonth.GetFiscalYearID(baselineEndDate.Month, baselineEndDate.Year)}"
+		+ $" and {prefix}FiscalMonthID = {baselineEndDate.Month})";
+		baselineEndDate = baselineEndDate.AddMonths(-1);
+		return result;
+	}).Substring(5).Dump();
+
+	baselineEndDate = new DateTime(2018, 4, 1);
+	var clause = "";
+	Enumerable.Range(0, 12)
+	.ForEach(i =>
+	{
+		clause +=
+			$"\r\n({prefix}FiscalYearID = {FiscalMonth.GetFiscalYearID(baselineEndDate.Month, baselineEndDate.Year)} and {prefix}FiscalMonthID = {baselineEndDate.Month}) or ";
+		baselineEndDate = baselineEndDate.AddMonths(-1);
+	});
+
+	clause = clause.Substring(0, clause.Length - 3);
+	clause.Dump();
+}
+
+// Define other methods and classes here
+
+public class FiscalMonth
+{
+
+	public static int GetFiscalYearID(int calendarMonth, int calendarYear)
+	{
+		var endMonth = DBSetting.General.FiscalYearEndMonth;
+		return (calendarMonth <= endMonth ? calendarYear : calendarYear + 1);
+	}
+
+}
+
+public static class DBSetting
+{
+	public static class General
+	{
+		public static int FiscalYearEndMonth => 12;
+	}
+}
+
+public static class EnumerableExtensions
+{
+
+	public static void ForEach<T>(this IEnumerable<T> enumeration, Action<T> action)
+	{
+		foreach (T item in enumeration)
+		{
+			action(item);
+		}
+	}
+
+}