Convert TimeScript to Date in Azure CosmosDB SQL Query

Question

How can I select the timescripts of my documents in Date readable format? I want to do something like this:

SELECT CAST(C._ts AS DATE) FROM C

Specific to Cosmos DB SQL Query only please.

Answer 1

Functions announced in October 2020 https://devblogs.microsoft.com/cosmosdb/new-date-and-time-system-functions/ can assist with this (taking care to convert seconds to milliseconds)

SELECT TimestampToDateTime(C._ts*1000) as DateTime FROM C

Answer 2

Please use UDF in Cosmos DB.

sample document:

udf:

function convertTime(unix_timestamp){

      var date = new Date(unix_timestamp*1000);
      var year = date.getFullYear();
      var month = ("0"+(date.getMonth()+1)).substr(-2);
      var day = ("0"+date.getDate()).substr(-2);
      var hour = ("0"+date.getHours()).substr(-2);
      var minutes = ("0"+date.getMinutes()).substr(-2);
      var seconds = ("0"+date.getSeconds()).substr(-2);

      return year+"-"+month+"-"+day+" "+hour+":"+minutes+":"+seconds;
}

SQL: SELECT udf.convertTime(c._ts) FROM c

Surely , you could refer to varied format in this case: Convert a Unix timestamp to time in JavaScript

Hope it helps you.