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jeffshumphreys@gmail.com
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Added more functions, cleaned up Compare functions to use array max scan rather than series of if commands. Tested for nulls. Added to testing. Added PiecesWithContext function.
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6 files changed

+298
-13
lines changed

6 files changed

+298
-13
lines changed

‎Adaptors.cs‎

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Original file line numberDiff line numberDiff line change
@@ -10,6 +10,7 @@
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using System.Linq;
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using System.IO;
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using System.Xml.Schema;
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using System.Globalization;
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namespace MySQLCLRFunctions
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{
@@ -27,5 +28,22 @@ public static string VarBin2Hex(SqlBytes InputAsHex)
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{
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return BitConverter.ToString(InputAsHex.Buffer);
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}
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[SqlFunction(DataAccess = DataAccessKind.None, IsDeterministic = true, IsPrecise = true)]
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public static DateTime? ADDateTimeString2DateTime(string InputAsStringDateTime)
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{
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if (InputAsStringDateTime == null) return null;
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if (string.IsNullOrWhiteSpace(InputAsStringDateTime)) return null;
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// 20021111182004.0Z
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// 20021031003422
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try
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{
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return DateTime.ParseExact(InputAsStringDateTime.Substring(0, 14), "yyyyMMddHHmmss", CultureInfo.InvariantCulture);
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}
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catch (FormatException fe)
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{
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return null;
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}
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}
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}
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}

‎Compares.cs‎

Lines changed: 126 additions & 5 deletions
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@@ -16,12 +16,133 @@ namespace MySQLCLRFunctions
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public static class Compares
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{
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[SqlFunction(DataAccess = DataAccessKind.None, IsDeterministic = false, IsPrecise = true)]
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public static DateTime GreatestOf2DateTimes(DateTime d1, DateTime d2)
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public static DateTime? Max2DateTimes(DateTime? d1, DateTime? d2)
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{
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if (d1 == null) return d2;
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if (d2 == null) return d1;
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if (d1.CompareTo(d2) >= 0) return d1;
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return d2;
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DateTime?[] itemlist = new[] { d1, d2 };
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return itemlist.Max();
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}
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[SqlFunction(DataAccess = DataAccessKind.None, IsDeterministic = false, IsPrecise = true)]
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public static DateTime? Max3DateTimes(DateTime? d1, DateTime? d2, DateTime? d3)
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{
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DateTime?[] itemlist = new [] { d1, d2, d3 };
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return itemlist.Max();
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}
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[SqlFunction(DataAccess = DataAccessKind.None, IsDeterministic = false, IsPrecise = true)]
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public static DateTime? Max4DateTimes(DateTime? d1, DateTime? d2, DateTime? d3, DateTime? d4)
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{
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DateTime?[] itemlist = new[] { d1, d2, d3, d4 };
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return itemlist.Max();
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}
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[SqlFunction(DataAccess = DataAccessKind.None, IsDeterministic = true, IsPrecise = true)]
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public static int? Max2Integers(int? d1, int? d2)
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{
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int?[] itemlist = new[] { d1, d2 };
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return itemlist.Max();
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}
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[SqlFunction(DataAccess = DataAccessKind.None, IsDeterministic = true, IsPrecise = true)]
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public static int? Max3Integers(int? d1, int? d2, int? d3)
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{
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int?[] itemlist = new[] { d1, d2, d3 };
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return itemlist.Max();
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}
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[SqlFunction(DataAccess = DataAccessKind.None, IsDeterministic = true, IsPrecise = true)]
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public static int? Max4Integers(int? d1, int? d2, int? d3, int? d4)
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{
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int?[] itemlist = new[] { d1, d2, d3, d4 };
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return itemlist.Max();
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}
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[SqlFunction(DataAccess = DataAccessKind.None, IsDeterministic = true, IsPrecise = true)]
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public static Int64? Max2BigInts(Int64? d1, Int64? d2)
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{
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Int64?[] itemlist = new[] { d1, d2 };
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return itemlist.Max();
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}
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[SqlFunction(DataAccess = DataAccessKind.None, IsDeterministic = true, IsPrecise = true)]
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public static Int64? Max3BigInts(Int64? d1, Int64? d2, Int64? d3)
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{
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Int64?[] itemlist = new[] { d1, d2, d3 };
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return itemlist.Max();
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}
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[SqlFunction(DataAccess = DataAccessKind.None, IsDeterministic = true, IsPrecise = true)]
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public static Int64? Max4BigInts(Int64? d1, Int64? d2, Int64? d3, Int64? d4)
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{
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Int64?[] itemlist = new[] { d1, d2, d3, d4 };
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return itemlist.Max();
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}
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//**********************************************************************************************************************
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// Mins
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//**********************************************************************************************************************
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[SqlFunction(DataAccess = DataAccessKind.None, IsDeterministic = false, IsPrecise = true)]
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public static DateTime? Min2DateTimes(DateTime? d1, DateTime? d2)
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{
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DateTime?[] itemlist = new[] { d1, d2 };
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return itemlist.Min();
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}
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[SqlFunction(DataAccess = DataAccessKind.None, IsDeterministic = false, IsPrecise = true)]
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public static DateTime? Min3DateTimes(DateTime? d1, DateTime? d2, DateTime? d3)
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{
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DateTime?[] itemlist = new[] { d1, d2, d3 };
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return itemlist.Min();
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}
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[SqlFunction(DataAccess = DataAccessKind.None, IsDeterministic = false, IsPrecise = true)]
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public static DateTime? Min4DateTimes(DateTime? d1, DateTime? d2, DateTime? d3, DateTime? d4)
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{
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DateTime?[] itemlist = new[] { d1, d2, d3, d4 };
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return itemlist.Min();
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}
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[SqlFunction(DataAccess = DataAccessKind.None, IsDeterministic = true, IsPrecise = true)]
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public static int? Min2Integers(int? d1, int? d2)
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{
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int?[] itemlist = new[] { d1, d2 };
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return itemlist.Min();
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}
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[SqlFunction(DataAccess = DataAccessKind.None, IsDeterministic = true, IsPrecise = true)]
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public static int? Min3Integers(int? d1, int? d2, int? d3)
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{
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int?[] itemlist = new[] { d1, d2, d3 };
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return itemlist.Min();
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}
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[SqlFunction(DataAccess = DataAccessKind.None, IsDeterministic = true, IsPrecise = true)]
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public static int? Min4Integers(int? d1, int? d2, int? d3, int? d4)
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{
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int?[] itemlist = new[] { d1, d2, d3, d4 };
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return itemlist.Min();
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}
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[SqlFunction(DataAccess = DataAccessKind.None, IsDeterministic = true, IsPrecise = true)]
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public static Int64? Min2BigInts(Int64? d1, Int64? d2)
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{
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Int64?[] itemlist = new[] { d1, d2 };
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return itemlist.Min();
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}
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[SqlFunction(DataAccess = DataAccessKind.None, IsDeterministic = true, IsPrecise = true)]
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public static Int64? Min3BigInts(Int64? d1, Int64? d2, Int64? d3)
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{
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Int64?[] itemlist = new[] { d1, d2, d3 };
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return itemlist.Min();
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}
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[SqlFunction(DataAccess = DataAccessKind.None, IsDeterministic = true, IsPrecise = true)]
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public static Int64? Min4BigInts(Int64? d1, Int64? d2, Int64? d3, Int64? d4)
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{
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Int64?[] itemlist = new[] { d1, d2, d3, d4 };
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return itemlist.Min();
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}
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}
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}

‎MySQLCLRFunctions.csproj‎

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@@ -60,7 +60,6 @@
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<Compile Include="StringTransform.cs" />
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<Compile Include="StringTransformStripDownCustomizations.cs" />
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<Compile Include="StringTransformTSQLSpecific.cs" />
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<Compile Include="SuperClass.cs" />
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<Compile Include="Properties\AssemblyInfo.cs" />
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</ItemGroup>
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<Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />

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