We calculate all of our gravel and sand by the tonnage formula: Length (FT) x Width (FT) x Depth (IN), Divide by 200, Multiply by 1.103 = Metric Tonnes. Divide your Metric Tonnes by 1.3 (approximate weight per yard) to get your final yardage.
HBase is an open-source, distributed, column-oriented store modeled after Google's Bigtable. Just as Bigtable leverages the distributed data storage provided by the Google File System, HBase provides Bigtable-like capabilities on top of Hadoop. It... (more)
Data stored in a Firebase database is retrieved by attaching an asynchronous listener to a database reference. The listener will be triggered once for the initial state of the data and again anytime the data changes.he child_added event is typically used when retrieving a list of items from the database. Unlike value which returns the entire contents of the location, child_added is triggered once for each existing child and then again every time a new child is added to the specified path.