Oracle SQL
Oracle Database is a relational database
management systemandreleased by Oracle Corporation. Oracle
Database has become a major feature of database computing.
An Oracle database system comprises at least one instance of
the application, along with data storage. An instance
comprises a set of operating-system processes and
memory-structures that interact with the storage. Typical
processes include PMON (the process monitor) and SMON (the
system monitor).
Users of Oracle databases refer to the server-side
memory-structure as the SGA (System Global Area). The SGA
typically holds cache information such as data-buffers, SQL
commands and user information. In addition to storage, the
database consists of online redo logs (which hold
transactional history). Processes can in turn archive the
online redo logs into archive logs (offline redo logs), which
provide the basis (if necessary) for data recovery and for
some forms of data replication.
The Oracle RDBMS stores data logically in the form of
tablespaces and physically in the form of data files.
Tablespaces can contain various types of memory segments; for
example, Data Segments, Index Segments etc. Segments in turn
comprise one or more extents. Extents comprise groups of
contiguous data blocks. Data blocks form the basic units of
data storage. At the physical level, data-files comprise one
or more data blocks, where the block size can vary between
data-files.
Oracle databases can be used to create distributed database
running over contiguous or disparate logistical locations. It
can be used to store data and information and provides high
availably and performance and is used extensively as a
practial and reliable database.
We can design and engineer databases based on your business
model and provide tools and interfaces that can be used to
mine your business data. We also have experience in database
persistence and create custom persistence frameworks and
algorythms which can be used to predict patterns and trends
from your data.
Please
contact us
for more information.