A database is an organized collection of structured information, or data, typically stored electronically in a computer system, and it is set up for easy access, management, and updating. We don’t know how big and deep it is…
Databases used for…
What?
- Improve business processes
Companies and firms collect data about business processes such as sales, order processing, customer service and, etc. They analyze data to improve these processes and expand their business to increase revenue.
- Keep track of customers
Databases often store information about people such as customers or users. For instance, social media platforms use databases to store user information about their names, email addresses and user behavior. The data is used to recomment content to users and improve the UX (User Experience).
- Secure personal health information
Healthcare providers use databases to securely store personal and private health data to inform and improve patient care.
- Store personal data
Databases can also be used to store personal information. For example, personal cloud storage is available for individual users to store media, such as photos and videos. I’m using Google Photo to store my memories of photos and videos of my entire life. (This application is FREE to use for everyone!!)
The language of databases…?
SQL (Structured Query Language) is a programming language used by nearly all relational databases to query, manipulate, and define data, and to provide access control. It allows users to access data in relational database management systems while also describing the data. Advantages of SQL are quicker query processing, standardized language, no coding skills required, interactive, portable and multiple or different data views.
Features of SQL
#1 Flexibility and Scalability
– It is easier to create new tables while dropping or deleting previously-created or scantily used tables.
#2 Comprehensive Application Development Tool
– SQL is suitable for every large or small organization, no matter the size.
#3 Rich Transactional Support
– SQL’s programming capability of handling large records while also managing several other transactions is top-notch.
#4 High Performance
– It offers a high-performance programming capability for high usage, incredibly transactional, and heavy workload database systems.
#5 High Availability
– SQL is compatible with other databases such as Microsoft SQL Server, Oracle, Databases, My SQL and more. These RDBMSs supports SQL, and it’s easier to create application extensions for procedural programming and several other SQL functions that are extra features.
#6 High Security
– It’s easy to give permissions on views, procedures, and tables, so get high security for valuable data with SQL.
#7 SQL’s Management Ease
– Some of the common and standard SQL commands include “Delete,” “Insert,” “Select,” “Update,” and “Drop.” These commands help users managelarge amounts of data from a database efficiently and quickly.
#8 Open Source
– It makes a great pick for developers and programmers who are looking for a community of professionals to learn from off, and it’s also one of the benefits of SQL.
The most common SQL databases…?
(It called “RDBMS: Relational DataBase Management System”)
My SQL
This is the most common and easy to use, open-source SQL database server widely used for web application development. There are many advanced features such as data security, on-demand scalability, high performance, round-the-clock uptime, comprehensive transactional support, complete workflow control, reduced total cost of ownership and the flexibility of open source.
Oracle Database
This database is owned by Oracle Corporation, and it’s a multi-model database management system using online transaction processing (OLTP), data warehousing (DW),and mixed (OLTP&DW) database workloads. It delivers availability, performance & scalability, security and backup & recovery.
Microsoft SQL Server
This is another most popular relational database whose code is close-sourced and owned by Microsoft. SQL server supports common Windows and Linux operating systems and facilitates access via SQL queries and graphical use interfaces. Companies or firms can leverage a range of features with the current SQL server version, including referential integrity, multi-version concurrency control, higher availability, fine-grained locking, and greater stability.
Postgre SQL
This is an object-relational database management system designed to support more complex and varied data models unlike My SQL. It offers a range of enterprise features, including scalability, security, and better automation supports via a command-line interface or direct access over the website. It supports Windows, macOS, several distributions and stored procedures that is a highly complex programming language built on top of SQL to facilitate complex transactions, and it provide ACID (Atomicity, Consistency, Isolation, Durability) compliance.
