What is Data Diff?
It is an open-source command-line tool and Python library to efficiently diff rows across two different databases. It splits the table into smaller segments, then checksums each segment in both databases. When the checksums for a segment aren't equal, it will further divide that segment into yet smaller segments, checksumming those until it gets to the differing row(s).
Data Diff is a tool in the Database Tools category of a tech stack.
Data Diff is an open source tool with 2.9K GitHub stars and 272 GitHub forks. Here’s a link to Data Diff's open source repository on GitHub
Data Diff Integrations
MySQL, PostgreSQL, Oracle, Google BigQuery, and Amazon Redshift are some of the popular tools that integrate with Data Diff. Here's a list of all 7 tools that integrate with Data Diff.
Data Diff's Features
- Verifies across many different databases (e.g. PostgreSQL -> Snowflake)
- Outputs diff of rows in detail
- Simple CLI/API to create monitoring and alerts
Data Diff Alternatives & Comparisons
What are some alternatives to Data Diff?
MySQL
The MySQL software delivers a very fast, multi-threaded, multi-user, and robust SQL (Structured Query Language) database server. MySQL Server is intended for mission-critical, heavy-load production systems as well as for embedding into mass-deployed software.
PostgreSQL
PostgreSQL is an advanced object-relational database management system
that supports an extended subset of the SQL standard, including
transactions, foreign keys, subqueries, triggers, user-defined types
and functions.
MongoDB
MongoDB stores data in JSON-like documents that can vary in structure, offering a dynamic, flexible schema. MongoDB was also designed for high availability and scalability, with built-in replication and auto-sharding.
Redis
Redis is an open source (BSD licensed), in-memory data structure store, used as a database, cache, and message broker. Redis provides data structures such as strings, hashes, lists, sets, sorted sets with range queries, bitmaps, hyperloglogs, geospatial indexes, and streams.
Amazon S3
Amazon Simple Storage Service provides a fully redundant data storage infrastructure for storing and retrieving any amount of data, at any time, from anywhere on the web
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