PostgreSQL Database

PostgreSQL is a relational database that stores data in tables(relations) as a sequence of information (people and documents). There is also relationships between the two (like authorship). The relations store fixed-type attributes in the form of entity properties (like titles) and a primary key. Such entity property attributes can come in two forms:

PostgreSQL is often abbreviated as pgsql. It is an and open-source relational database with advanced enterprise-class features. It provides support for both relational SQL queries and non-relational JSON queries. PGSQL is characterized by its great stability, and it has been developed for over two decades by a dedicated community. Other database-related aspects of PGSQL are its:

PostgreSQL finds widespread use as the primary data storage medium or as the data warehouse for all kinds of mobile, web, analytics and geospatial apps. The current version of PGSQL is version 15 which is in an advanced beta stage.

PGSQL is well known for its support for advanced data types. The performance optimization of the technology as good as other commercial database technology like SQL Server and Oracle. You can host postgresql online with common cloud technologies like AWS.

Supports a wide range of SQL features- PGSQL is compatible with most SQL features like:

• It supports multiple Indexing like, Partial, Multicolumn, expressions and B-tree
• Multi-Version Concurrency Control (MVCC).
• Complex SQL queries.
• SQL sub-selects.
• Supports transactions and Nested Transactions through Savepoints.
• Streaming Replication
• Table partitioning

Just-in-time compilation of expressions

• Structured- Date and Time, Array, Universally Unique Identifier (UUID) and Range.
• Primitives- Integer, String, Numeric and Boolean.
• Customizations- Composite, Custom Types
• Geometry- Circle, Polygon, Point, Line.
• Document- JSON/JSONB, XML and Key-value.

• It is compatible with common procedural languages like PL/PGSQL, Perl and Python amongst others.
• Stored procedures and functions.
• JSON/SQL path expressions
• Support for customizable storage interface for tables
• It is compatible with and supports foreign data wrappers which can connect to additional databases through SQL.

PostgreSQL is well known for its security features which include the following:

• Robust access control system
• It provides support for a variety of authentications like GSSAPI (Generic Security Service Application Program Interface), LDAP (Lightweight Directory Access Protocol), SSPI (Security Support Provider Interface, Certificate and SCRAM-SHA-256 amongst others.
• PGSQL supports row and column-level security

• PGSQL has several disaster recoveries provisions like:
• PITR (Point in time recovery), Active standbys
• Support for WAL (Write-ahead Logging)
• Different replication methods like Asynchronous, Synchronous, and Logical are supported.
• Tablespaces

It would be wrong to assume that PostgreSQL is a simple relational database solution. Indeed, it goes beyond to object-relational and provides support for complex structures and many built-in and user-defined data types. PGSQL supports extensive data capacity and the businesses trust the technology for its data integrity. PGSQL has many features that facilitate the work of developers in building applications besides letting administrators build fault-tolerant environments and protect data integrity.

In short PGSQL facilitates the creation of secure and resilient environments with great data integrity.