In Oracle, I could simply do this:
INSERT INTO myTable VALUES ('someValue',SYSTIMESTAMP);
That would insert two values into myTable, and one of them would be a timestamp based-on the database server's time.
For MongoDB (via the Java driver) I've tried this:
myDoc.put("value","someValue");
myDoc.put("timestamp", new Date());
myCollection.insert(myDoc);
But that creates a timestamp based-on the client machine's time, not the database server's time.
Is there a way to have MongoDB apply a timestamp to a document based-on the the database server time?
A little late to the game - but the recent releases of mongodb have $currentDate.
See http://docs.mongodb.org/manual/reference/operator/update/currentDate/
Looks like you can get the server to generate a Timestamp on insert with db.test.insertOne( { ts: new Timestamp() } );
. https://docs.mongodb.com/manual/reference/bson-types/#timestamps
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