Contents
Why do we separate databases?
Good reasons to create separate databases would be to support different availability requirements or simplify administration. For example if your databases require very different backup schedules or different recovery models. Another reason would be if you may want to run them on different instances.
Why is it important to use different databases?
Within systematic reviews, when searching for relevant references, it is advisable to use multiple databases. However, searching databases is laborious and time-consuming, as syntax of search strategies are database specific.
Why do we need two databases?
There are many reasons to use two databases, some that come to mind: Size (the limit of which is controlled by the operating system, filesystem, and database server) Separation of types of data.
Why do we use databases in research?
These databases contain scholarly and peer-reviewed articles written by credible authors, such as journalists, researchers and experts in their field. Since databases provide powerful search tools for narrowing results, users are able to more quickly find the information they need.
Can we use two database?
You can use two databases the same reason most banks have two ATMs, for reliability. You can swap one in if the other fails, but to do it quickly requires setup, such as a cname and controlling your own DNS server.
Can we use multiple database?
In practice many systems use multiple databases. A system that uses multiple databases is likely to need distributed transactions. In a distributed system, there are multiple data managers on different nodes of the network. A transaction may access data at more than one data manager.
How can the logical separation of database content be done?
All blogs with their contents are independent from each other and operated by different users. How can such a extension to the software be done? The most obvious solution to the problem seems to me to make the separation part of the data model.
What makes a database different from a file based system?
This information is used by the DBMS software or database users if needed. This separation of data and information about the data makes a database system totally different from the traditional file-based system in which the data definition is part of the application programs.
Why is a database referred to as self-describing?
A database system is referred to as self-describing because it not only contains the database itself, but also metadata which defines and describes the data and relationships between tables in the database. This information is used by the DBMS software or database users if needed.
How are database systems designed for multiple users?
Current database systems are designed for multiple users. That is, they allow many users to access the same database at the same time. This access is achieved through features called concurrency control strategies.