![]() ![]() This utility is bundled with standard distribution of Python. The easiest way to install is by using Python Package Manager, pip. Let us discuss the environmental setup required to use SQLAlchemy.Īny version of Python higher than 2.7 is necessary to install SQLAlchemy. Instead of writing tedious database interfacing code yourself, an ORM takes care of these issues for you while you can focus on programming the logics of the system. In an ORM system, each class maps to a table in the underlying database. However, data types in most of the database products such as Oracle, MySQL, etc., are primary. Hence, the OO programmer has to convert objects in scalar data to interact with backend database. These cannot be expressed as primitive types such as integers and strings. Usually, the type system used in an Object Oriented (OO) language like Python contains non-scalar types. ORM (Object Relational Mapping) is a programming technique for converting data between incompatible type systems in object-oriented programming languages. Latest version is numbered as 1.2.7, released as recently as in April 2018. Its initial version was released in February 2006. Michael Bayer is the original author of SQLAlchemy. Databases and SQL will be viewed in a different perspective using SQLAlchemy. SQLAlchemy aims to accommodate both of these principles.įor this reason, it has adopted the data mapper pattern (like Hibernate) rather than the active record pattern used by a number of other ORMs. On the other hand, as abstraction in object collections starts to matter, they behave less like tables and rows. SQLAlchemy is famous for its object-relational mapper (ORM), using which, classes can be mapped to the database, thereby allowing the object model and database schema to develop in a cleanly decoupled way from the beginning.Īs size and performance of SQL databases start to matter, they behave less like object collections. It is an open source and cross-platform software released under MIT license. ![]() ![]() It is written in Python and gives full power and flexibility of SQL to an application developer. SQLAlchemy is a popular SQL toolkit and Object Relational Mapper. ![]()
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