Doppelganger

Doppelganger is a popular concept in literature and art that refers to a person's double or replica. In the world of programming, Doppelganger refers to a unique tool designed to clone or replicate databases structures.

Overview

Doppelganger is a command-line tool that allows programmers to replicate database structures from one database system to another. For example, if you have a MySQL database that you want to replicate in PostgreSQL, Doppelganger can help you achieve just that.

Features

• Doppelganger helps to replicate database structures from one system to another.
• It supports all popular database systems such as MySQL, PostgreSQL, SQLite, and SQL Server.
• The tool is open-source, which means developers can access and modify the source code to meet their specific needs.
• It is available for all popular platforms such as Windows, MacOS, and Linux.

How Doppelganger Works

Doppelganger works by extracting the schema information from the source database system, converting it into an intermediate format, then recreating the schema in the destination database system. The tool doesn't transfer data between database systems.

Usage

To use Doppelganger, you need to have it installed on your system. Once installed, you need to specify the source and destination databases to replicate. Here is an example of how to use Doppelganger to replicate a MySQL database in PostgreSQL:

doppelganger replicate mysql://user:password@localhost/dbname postgresql://user:password@localhost/dbname

Conclusion

Doppelganger is a powerful tool that helps programmers to replicate database structures from one database system to another. With its user-friendly command line interface, the tool is easy to use and implement. If you are a developer who needs to replicate database structures, Doppelganger is a tool worth considering.