Filter using date field in mysql Document store(Nosql) in C#

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How can i filter a date field in document store table (NoSQL) in c#. i need to filter created ate greater than particular time.

the date is storing as string values in nosql.

I had only found the below mentioned code to filter in C# mysql-x-devspi.

var myDb = mySession.GetSchema(Myschema);
var myColl = myDb.CreateCollection("Mytbl",true);
var docs = myColl.Find("createdtime > :starttime")
.Bind("starttime", DateTime.UtcNow)
.Execute();
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nbk On BEST ANSWER

You need a date value from somewhere and which you want to filter aso

MySQL needs "his" date format, automatic doesn't work always.

 DateTime dateValue= DateTime.Now;
 ....
.Bind("starttime", dateValue.ToString("yyyy-MM-dd HH:mm:ss")) 

But as stated in my comment a RDMS like MySQL and a NoSQL are mainly different, and mysql is definitely no NoSQL.

You can take a look https://www.sitepoint.com/sql-vs-nosql-differences/ where the main differences are explaind