One of the most widely used databases, it supports both SQL for relational queries and JSON for non-relational queries. An object-relational database management system is PostgreSQL (ORDBMS). It has a wide range of sophisticated data types and strong feature sets, which improve the software’s extensibility, dependability, and data integrity.
The discussion of PostgreSQL’s most advanced features, database administration tools, and advantages and disadvantages in this section will help us improve our understanding of PostgreSQL.
PostgreSQL has a number of capabilities that are intended to assist programmers in creating applications, manage data in datasets, and allow managers to maintain data integrity and build risk-tolerant settings. The PostgreSQL Global team of developers constantly improves existing features and adds new ones in response to user demand whenever a new release hits the market.
The following are PostgreSQL’s key attributes:
• Free to download:
It is open-source and is readily available from the PostgreSQL website.
• Compatibility with several operating systems:
PostgreSQL is compatible with all popular operating systems, including UNIX (AIX, BSD, HP-UX, SGI IRIX, Solaris, and Tru64), Linux, MacOS X, and Microsoft Windows.
• Adaptable to different programming languages:
It accepts a variety of programming interfaces, including ODBC, C/C++, Java, Python, Perl, Ruby, and Tcl (Open Database Connectivity).
1. Supporting data integrity, which includes the following, is one of its main benefits:
o The primary keys.
o UNIVARIATE, NOT NULL
o Advisory locks and explicit locks.
o Restrictions on Exclusion.
2. Support for a variety of SQL features: PostgreSQL has support for a number of SQL features, including the following:
o MVCC (Multi-Version Concurrency Control).
o It offers a variety of indexing options, including B-tree, partial, multicolumn, and expressions.
o Sub-selects in SQL.
o Difficult SQL queries.
o Replication in Stream
o It allows Nested Transactions via Savepoints and Transactions.
o Expressions are compiled just-in-time.
o Partitioning of tables.
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