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SQLAlchemy offers tools for database schema generation, querying, and object-relational mapping. Key features include: A comprehensive embedded domain-specific language for SQL in Python called "SQLAlchemy Core" that provides means to construct and execute SQL queries. A powerful ORM that allows the mapping of Python classes to database tables.
Sequelize, Node.js ORM tool for Postgres, MySQL, MariaDB, SQLite, DB2, Microsoft SQL Server, and Snowflake; Typeorm, Typescript/Javascript scalable ORM tool; MikroORM, TypeScript ORM based on Data Mapper, Unit of Work and Identity Map patterns. Supports PostgreSQL, MySQL, SQLite (including libSQL), MongoDB, and MariaDB
For example, consider an address book entry that represents a single person along with zero or more phone numbers and zero or more addresses. This could be modeled in an object-oriented implementation by a "Person object " with an attribute/field to hold each data item that the entry comprises: the person's name, a list of phone numbers, and a ...
The terms schema matching and mapping are often used interchangeably for a database process. For this article, we differentiate the two as follows: schema matching is the process of identifying that two objects are semantically related (scope of this article) while mapping refers to the transformations between the objects. For example, in the ...
SQLAlchemy nose: SQLAlchemy-Migrate Repoze.what & Repoze.who pluggable: Genshi, more Support for memcached, and any WSGI compliant system ToscaWidgets, utilizing FormEncode Yes web2py: Python Yes Yes Push Yes Yes Yes Yes Yes Yes Yes Yes Yes [99] BlueBream (Zope 3) Python via add-on products, e.g. Plone w/KSS Yes Pull Yes ZODB, SQLObject, SQLAlchemy
The SQL/Schemata, or Information and Definition Schemas, part of the SQL standard is defined by ISO/IEC 9075-11:2008.SQL/Schemata defines the information schema and definition schema, providing a common set of tools to make SQL databases and objects self-describing.
Included Python script codegen.py 'export filter' to Python, C++, JavaScript, Pascal, Java, PHP; external tools add Ada, C, PHP5, Ruby, shapefile, C#, SQL (Sybase, Postgres, Oracle, DB/2, MS-SQL, MySQL, ...) No No Uses Python as scripting language Diagrams.net: Yes Unknown Unknown Unknown Unknown Unknown Atlassian Confluence, JIRA ...
That is the domain of the physical schema. Now logical schemas describe data in terms of relational tables and columns, object-oriented classes, and XML tags. A single set of tables, for example, can be implemented in numerous ways, up to and including an architecture where table rows are maintained on computers in different countries.