Enhancing the SqlDbType with Json

src/libraries/System.Data.Common/ref/System.Data.Common.cs

@@ -1656,6 +1656,7 @@ public enum SqlDbType
         Time = 32,
         DateTime2 = 33,
         DateTimeOffset = 34,
+        Json = 35,
     }
     public sealed partial class StateChangeEventArgs : System.EventArgs
     {

src/libraries/System.Data.Common/src/System/Data/SqlDbType.cs

@@ -3,40 +3,185 @@
 
 namespace System.Data
 {
-    // Specifies the SQL Server data type.
+    /// <summary>
+    /// Specifies SQL Server-specific data type of a field, property, for use in a <see cref="T:Microsoft.Data.SqlClient.SqlParameter" />.
+    /// </summary>
     public enum SqlDbType
     {
-        // A 64-bit signed integer.
+        /// <summary>
+        /// <see cref="long" />. A 64-bit signed integer.
+        /// </summary>
         BigInt = 0,
+
+        /// <summary>
+        /// <see cref="Array"/> of type <see cref="byte"/>. A fixed-length stream of binary data ranging between 1 and 8,000 bytes.
+        /// </summary>
         Binary = 1,
+
+        /// <summary>
+        /// <see cref="bool"/>. An unsigned numeric value that can be 0, 1, or <see langword="null"/>
+        /// </summary>
         Bit = 2,
+
+        /// <summary>
+        /// <see cref="string"/>. A fixed-length stream of non-Unicode characters ranging between 1 and 8,000 characters.
+        /// </summary>
         Char = 3,
+
+        /// <summary>
+        /// <see cref="System.DateTime"/>. Date and time data ranging in value from January 1, 1753 to December 31, 9999 to an accuracy of 3.33 milliseconds
+        /// </summary>
         DateTime = 4,
+
+        /// <summary>
+        /// <see cref="decimal"/>. A fixed precision and scale numeric value between -10 <sup>38</sup> -1 and 10 <sup>38</sup> -1.
+        /// </summary>
         Decimal = 5,
+
+        /// <summary>
+        /// <see cref="double"/>. A floating point number within the range of -1.79E +308 through 1.79E +308.
+        /// </summary>
         Float = 6,
+
+        /// <summary>
+        /// <see cref="Array"/> of type <see cref="byte"/>. A variable-length stream of binary data ranging from 0 to 2 <sup>31</sup> -1
+        /// (or 2,147,483,647) bytes.
+        /// </summary>
         Image = 7,
+
+        /// <summary>
+        /// <see cref="int"/>. A 32-bit signed integer.
+        /// </summary>
         Int = 8,
+
+        /// <summary>
+        /// <see cref="decimal"/>. A currency value ranging from -2 <sup>63</sup> (or -9,223,372,036,854,775,808) to 2 <sup>63</sup>
+        /// -1 (or +9,223,372,036,854,775,807) with an accuracy to a ten-thousandth of a currency unit.
+        /// </summary>
         Money = 9,
+
+        /// <summary>
+        /// <see cref="string"/>. A fixed-length stream of Unicode characters ranging between 1 and 4,000 characters.
+        /// </summary>
         NChar = 10,
+
+        /// <summary>
+        /// <see cref="string"/>. A variable-length stream of Unicode data with a maximum length of 2 <sup>30</sup> - 1
+        /// (or 1,073,741,823) characters.
+        /// </summary>
         NText = 11,
+
+        /// <summary>
+        /// <see cref="string"/>. A variable-length stream of Unicode characters ranging between 1 and 4,000 characters. Implicit
+        /// conversion fails if the string is greater than 4,000 characters. Explicitly set the object when working with strings
+        /// longer than 4,000 characters. Use <see cref="F:System.Data.SqlDbType.NVarChar"/> when the database column is
+        /// <see langword="nvarchar(max)"/>.
+        /// </summary>
         NVarChar = 12,
+
+        /// <summary>
+        /// <see cref="float"/>. A floating point number within the range of -3.40E +38 through 3.40E +38.
+        /// </summary>
         Real = 13,
+
+        /// <summary>
+        /// <see cref="Guid"/>. A globally unique identifier (or GUID).
+        /// </summary>
         UniqueIdentifier = 14,
+
+        /// <summary>
+        /// <see cref="System.DateTime"/>. Date and time data ranging in value from January 1, 1900 to June 6, 2079 to an accuracy of one minute.
+        /// </summary>
         SmallDateTime = 15,
+
+        /// <summary>
+        /// <see cref="short"/>. A 16-bit signed integer.
+        /// </summary>
         SmallInt = 16,
+
+        /// <summary>
+        /// <see cref="decimal"/>. A currency value ranging from -214,748.3648 to +214,748.3647 with an accuracy to a ten-thousandth of a currency unit.
+        /// </summary>
         SmallMoney = 17,
+
+        /// <summary>
+        /// <see cref="string"/>. A variable-length stream of non-Unicode data with a maximum length of 2 <sup>31</sup> -1 (or 2,147,483,647) characters.
+        /// </summary>
         Text = 18,
+
+        /// <summary>
+        /// <see cref="System.Array"/> of type <see cref="byte"/>. Automatically generated binary numbers, which are guaranteed to be unique within a database. <see langword="timestamp"/> is used typically as a mechanism for version-stamping table rows. The storage size is 8 bytes.
+        /// </summary>
         Timestamp = 19,
+
+        /// <summary>
+        /// <see cref="byte"/>. An 8-bit unsigned integer.
+        /// </summary>
         TinyInt = 20,
+
+        /// <summary>
+        /// <see cref="System.Array"/> of type <see cref="byte"/>. A variable-length stream of binary data ranging between 1 and 8,000 bytes.
+        /// Implicit conversion fails if the byte array is greater than 8,000 bytes. Explicitly set the object when working with byte arrays
+        /// larger than 8,000 bytes.
+        /// </summary>
         VarBinary = 21,
+
+        /// <summary>
+        /// <see cref="string"/>. A variable-length stream of non-Unicode characters ranging between 1 and 8,000 characters.
+        /// Use <see cref="F:System.Data.SqlDbType.VarChar"/> when the database column is <see langword="varchar(max)"/>.
+        /// </summary>
         VarChar = 22,
+
+        /// <summary>
+        /// <see cref="object"/>. A special data type that can contain numeric, string, binary, or date data as well as the SQL Server values Empty and Null,
+        /// which is assumed if no other type is declared.
+        /// </summary>
         Variant = 23,
+
+        /// <summary>
+        /// An XML value. Obtain the XML as a string using the <see cref="M:Microsoft.Data.SqlClient.SqlDataReader.GetValue(System.Int32)"/> method or
+        /// <see cref="P:System.Data.SqlTypes.SqlXml.Value"/> property, or as an <see cref="T:System.Xml.XmlReader"/> by calling the
+        /// <see cref="M:System.Data.SqlTypes.SqlXml.CreateReader"/> method.
+        /// </summary>
         Xml = 25,
+
+        /// <summary>
+        /// A SQL Server user-defined type (UDT).
+        /// </summary>
         Udt = 29,
+
+        /// <summary>
+        /// A special data type for specifying structured data contained in table-valued parameters.
+        /// </summary>
         Structured = 30,
+
+        /// <summary>
+        /// Date data ranging in value from January 1,1 AD through December 31, 9999 AD.
+        /// </summary>
         Date = 31,
+
+        /// <summary>
+        /// Time data based on a 24-hour clock. Time value range is 00:00:00 through 23:59:59.9999999 with an accuracy of 100 nanoseconds.
+        /// Corresponds to a SQL Server <see langword="time"/> value.
+        /// </summary>
         Time = 32,
+
+        /// <summary>
+        /// Date and time data. Date value range is from January 1,1 AD through December 31, 9999 AD.
+        /// Time value range is 00:00:00 through 23:59:59.9999999 with an accuracy of 100 nanoseconds.
+        /// </summary>
         DateTime2 = 33,
+
+        /// <summary>
+        /// Date and time data with time zone awareness. Date value range is from January 1,1 AD through December 31, 9999 AD.
+        /// Time value range is 00:00:00 through 23:59:59.9999999 with an accuracy of 100 nanoseconds. Time zone value range
+        /// is -14:00 through +14:00.
+        /// </summary>
         DateTimeOffset = 34,
+
+        /// <summary>
+        /// A JSON value.
+        /// </summary>
+        Json = 35,
     }
 }