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Checking if a document exists - MongoDB slow findOne vs find. Hayat Ağacı ~ The Tree Of Life ~ (2010_2011) Khalkida davası. YSlow for Command Line. Twitter: Yours to discover. Using A Graph Database To Power The “Web of Things” Bio Rick Bullotta is the co-founder and CTO of ThingWorx, a pioneer in the emerging field of real-world aware applications.

Using A Graph Database To Power The “Web of Things”

Mr. Counting Unique Items with Map-Reduce | The MongoDB Cookbook. Credit: Kyle Banker Problem You have a collection that stores pageviews by user, and you want to count the total number of unique user visits per day using map-reduce.

Counting Unique Items with Map-Reduce | The MongoDB Cookbook

Each pageview document looks something like this: The solution requires grouping the pageviews by day and then counting the total number of user visits and along with the number of unique visits for that day. Solution. How does foursquare generate their user IDs. Tayyar amaçsızca açtı bu blogu. Kahrolsun Stalinistler!