Database Reference
In-Depth Information
sorted into various databases. As a mobile developer, you will need to consider the architecture of
the database you're connecting to and how to access that data remotely.
Businesses store data for primarily financial and legal reasons. Companies and organizations need
to collect and store vast amounts of data about their employees' and customers' finances, various
habits, and so on. In addition to legal reasons for keeping this information, data can be used to see
trends over time, manage inventory, compare with competitors, and so forth. Data allows monitoring
and acting on an individual's personal buying habits. The data that is collected is becoming
increasingly important as corporations become more global. Companies can capture large amounts
of data from all over the world and use it to recognize and act on the trends they see.
This information collected in databases not only needs to be viewed on computer applications, but
also has to be accessible on mobile devices. This means data input on a mobile device needs to
be continually reconciled with the application server that's hosting the data. An example would be
a company that needs to keep track of all their projects and the materials needed to produce those
projects. In most cases, there are several devices accessing this data. The database is keeping track
of several data sets. For example, an administrator adjusts a data set, which, depending on the
variables involved, will adjust other data sets. Because the availability and costs of individual parts
to make an end-product are always changing, the administrator can set individual costs, operating
costs, and other data that needs to be captured into a working database. They could then potentially
see tables, charts, graphs, projection estimates, price suggestions, and so on, all based on this data.
This access to the company numbers could be important to a manager. But the information, how
it's displayed, and the types of comparisons, graphs, or predictions all depends on the parameters
defined when laying out the database. The true value of this data cannot be appropriately valued
without making sure that this data is organized and is accessible to the right users. The latter
thought, accessibility to the right users, is where the cloud comes in.
A
remote cloud database
is a server that sits on a rack somewhere in the world and is connected
to the Internet. It has a server application running and has extra hardware. It is connected to high-
speed Internet. So when I talk about data services and about “connecting to the cloud,” I am talking
about connecting to the server. The critical task of every server is to create a connectable directory
that has different types of data stored. The cloud distributes that data quickly. Running a powerful
server with the latest hardware has the best capabilities for manipulating, querying, and extracting
data and metadata.
Now that we've covered a little bit about cloud databases, let's tie this concept into other kinds of
database development.
Types of Database Development
One of the newer cloud services is iCloud from Apple. This topic primarily discusses iCloud and
the features that iCloud has built into it. Apple has established a very user-friendly system for
developers' connections with their service. For example, I mentioned a cloud's ability to quickly
distribute data and hardware that is capable of manipulating, querying, and extracting data and
metadata. One of iCloud's nicest features is how it handles your file's metadata. This document
service makes sure to always push metadata to the cloud ahead of the data that is actually changed
in the file. This means that your application is aware of the files that are available to it before the file
data has been completely pushed to iCloud or downloaded to a device.
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