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Load JSON Format Data into SQL Server

Hi All,
Many situation when we are pulling the data from website or calling the data through an API, we end up with JSON data.

If we needed to load JSON Data into Database, we need to break the JSON data into columns. We will see how to break the JSON data using C#.

Consider below JSON Data.
{ 
   "requestId":"299f#150942d9c47",
   "result":[ 
      { 
         "id":10357,
         "leadId":3032,
         "activityDate":"2015-06-16T20:20:36Z",
         "activityTypeId":1,
         "primaryAttributeValueId":26,
         "primaryAttributeValue":"eos-celebration",
         "attributes":[ 
            { 
               "name":"Client IP Address",
               "value":"132.197.180.58"
            },
            { 
               "name":"Query Parameters",
               "value":""
            },
            { 
               "name":"Referrer URL",
               "value":""
            },
            { 
               "name":"User Agent",
               "value":Mozilla/5.0 (Windows NT 6.1; WOW64)
            }
         ]
      }
   ]
}

I have split the JSON data into 2 colored section. One is purple where separating the data from JSON is straight forward.

The yellow colored part will be tricky as we have a node/key called “primaryAttributeValue” and primaryAttributeValue is going to be a sub node/tree under it called attributes and attributes has many nodes like "name" and “value”.

Please find the comments below on the code highlighted in red to understand:

C# Code:
String activityResult = pgm.getData(); // Data been called from API
var objActivityResult = JObject.Parse(activityResult); // Parse the data we received to JSON Object

                    if (objActivityResult["result"] != null)
                    {
                        foreach (JObject activityElement in objActivityResult["result"])
                        {
                            activityID = activityElement["id"].ToString();
                            activityLeadID = activityElement["leadId"].ToString();
                            activityDate = activityElement["activityDate"] != null ? activityElement["activityDate"].ToString() : string.Empty;
                            activityPrimaryAttributeValueId = activityElement["primaryAttributeValueId"] != null ? activityElement["primaryAttributeValueId"].ToString() : string.Empty;
                            activityPrimaryattributeValue = activityElement["primaryAttributeValue"] != null ? activityElement["primaryAttributeValue"].ToString() : string.Empty;

                            if (activityElement["attributes"] != null && activityElement["attributes"].Count() != 0)
                            {
                                foreach (JObject activityAttributeData in activityElement["attributes"])
                                {
                                    activityAttributeName = activityAttributeData["name"] != null ? activityAttributeData["name"].ToString() : string.Empty;
                                    activityAttributeValue = activityAttributeData["value"] != null ? activityAttributeData["value"].ToString() : string.Empty;
                                    if (Connection.State == ConnectionState.Closed)
                                        Connection.Open();
                                    string cmdText = @"<<INSERT INTO Tabl>>";
                                    SqlCommand STG_MKT_Activity = new SqlCommand(cmdText, Connection);
                                    STG_MKT_Activity.ExecuteNonQuery();
                                    cntActivity = cntActivity + 1;
                                    Connection.Close();
                                    STG_MKT_Activity.Dispose();
                                }
                            }


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