Question 1

What is a Database?

Accepted Answer

First of all, the term “database” should not be confused with “data storage.” A database is not a physical or virtual warehouse. It is data itself, but in an organized form. 
Although some deviations from the following definition are possible, you can imagine a database as a collection of two-dimensional tables. Each table consists of rows that contain records or observations and columns that contain their attributes. Columns in different tables may be related to each other; this is what is known as a classical relational database.

Question 2

When do you need a Database?

Accepted Answer

As soon as your project has too much data to be kept in spreadsheets, you may want to set up a database. A database differs from a collection of simple data files because it has a structure implemented in its design. 
A clever database design helps you shrink the hardware storage required to keep data. It also secures quick access to the data, making database queries run fast. These two factors are important if you want to get started with analytics or an application that uses a database.

Question 3

Why do you need Database services?

Accepted Answer

Database management requires advanced IT knowledge, especially if your business has already overgrown the startup phase. There are a vast number of database technologies, each with its own advantages and drawbacks. Databases take time to set up and maintain. Their downtimes cost money. 
To reduce the business risks associated with database management, you need a reliable and skilled contractor on your side. If you have a running database already, you may need a consultant who can implement a better one or re-design your database to enhance its performance.

Question 4

Which technologies should I take into account?

Accepted Answer

There are different types of databases. The traditional type is a relational database, in which tables have relationships expressed in keys. Non-relational databases have also emerged recently and keep gaining popularity. Finally, databases can be centralized or distributed.
Apart from this, to start with databases, you need to be familiar with different cloud computing providers, such as Amazon, Google, and Azure, since you will very almost certainly set up your database in one of them. 
Finally, there are numerous technologies for querying and managing databases, with SQL being the leading query language. v

Question 5

Which specialist does what in Database management?

Accepted Answer

Full-stack specialists are rare and may be a good solution only for small companies. Even middle-sized businesses usually need more than one specialist: one for each of the task domains in database management.
For instance, an architect will design a database or propose improvements to an existing one. A developer will implement it and perform regular maintenance. A database administrator will manage the database routinely, giving access to users and solving general issues.

Question 6

How do I select the right Database specialist?

Accepted Answer

Database management is a skill set that adds new technologies rapidly. You should look to see whether a seller has experience with the most recent ones, since that would mean that he or she can build a fast and cost-saving database.
Such modern technologies may include virtualization, encryption, query optimization, and backup and recovery methods.
Finally, SQL knowledge remains a must for every database specialist.

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