Posting JSON array in sql server

Question

How can we post following json array in sql server using c#?

{
    "sname" : ["<font color='red'> AneeshYadav </font>", "<font color='red'> AdityaMadan </font>", "<font color='red'> DrishtiThakur </font>", "<font color='red'> IshaanSahay </font>"],
    "admno" : ["1357", "1414", "1442", "4184"],
    "class" : ["1795", "1795", "1795", "1795"],
    "sms" : ["0", "1", "1", "1"],
    "att" : ["Not Posted", "Not Posted", "Not Posted", "Not Posted"],
    "tra" : ["on", "on", "on", "on"]
}

Answer 1

Sure you can.

Note that varchar field has a size of 8000 character max. As of 2005 varchar(MAX) can be used which (by msdn) claims to be 2^31-1 which is 2147483647 (2.14 billion). However, you need to use special indexing if you want to use keywords contains and like .

However it will be way more efficient to use Mongo, Redis, Raven instead.

Answer 2

This may not be the best way but hopefully it will help. Convert the json string to a DataTable ( mainly for the structure). Then iterate through the data in the datatable and save it to the db.

using Newtonsoft.Json;

string json = "...<json data>...";
// Convert to DataTable.
// Deserialize the JSon value and assign it to datatable      
DataTable dtValue = (DataTable)JsonConvert.DeserializeObject(json,typeof(DataTable)));

Just a note as well, check your json object formatting.

Answer 3

如果您安装 Sql Server 2016 CTP3，您可以使用 OPENJSON，请参阅在 Sql Server 2016 中导入 JSON