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SQLAlchemy VS Apache Calcite

Compare SQLAlchemy VS Apache Calcite and see what are their differences

SQLAlchemy logo SQLAlchemy

SQLAlchemy is the Python SQL toolkit and Object Relational Mapper that gives application developers the full power and flexibility of SQL.

Apache Calcite logo Apache Calcite

Relational Databases
  • SQLAlchemy Landing page
    Landing page //
    2023-08-01
  • Apache Calcite Landing page
    Landing page //
    2022-04-30

SQLAlchemy features and specs

  • Flexibility
    SQLAlchemy offers a high degree of flexibility for developers, allowing them to use raw SQL, an ORM, or a combination of both, which makes it adaptable to different use cases and preferences.
  • Database Agnosticism
    It supports a wide range of database backends (e.g., PostgreSQL, MySQL, SQLite) without needing to alter application code, facilitating easier transitions between databases.
  • Powerful ORM
    Its ORM component provides powerful object-relational mapping capabilities, making complex query construction and database interaction easier by using Pythonic objects.
  • Robust Query Construction
    SQLAlchemy offers advanced query construction capabilities, enabling developers to build complex and dynamic queries efficiently.
  • Comprehensive Documentation
    The library comes with extensive and well-maintained documentation, which helps in easing the learning curve and troubleshooting issues.

Possible disadvantages of SQLAlchemy

  • Learning Curve
    Due to its extensive features and flexibility, SQLAlchemy can have a steep learning curve for beginners, especially those new to databases or ORMs.
  • Complexity
    For simple CRUD applications, using SQLAlchemy might be overkill and adds unnecessary complexity compared to simpler ORM solutions like Django ORM.
  • Performance Overhead
    While powerful, the ORM layer may introduce some performance overhead compared to writing raw SQL, which can be a consideration for performance-critical applications.
  • Verbose Syntax
    The syntax, especially when using the ORM, can become verbose, which might be cumbersome for developers preferring succinct code.
  • Debugging Challenges
    Debugging complex object-relational mapping logic can be challenging, and pinpointing issues may require a deep understanding of both the database and SQLAlchemy's intricacies.

Apache Calcite features and specs

No features have been listed yet.

SQLAlchemy videos

SQLAlchemy ORM for Beginners

More videos:

  • Review - SQLAlchemy: Connecting to a database
  • Review - Mike Bayer: Introduction to SQLAlchemy - PyCon 2014

Apache Calcite videos

The Evolution of Apache Calcite and its Community - A Discussion with Julian Hyde

More videos:

  • Review - Building modern SQL query optimizers with Apache Calcite - Vladimir Ozerov

Category Popularity

0-100% (relative to SQLAlchemy and Apache Calcite)
Databases
63 63%
37% 37
Web Frameworks
100 100%
0% 0
Database Tools
0 0%
100% 100
Development
100 100%
0% 0

User comments

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Social recommendations and mentions

Based on our record, Apache Calcite should be more popular than SQLAlchemy. It has been mentiond 12 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

SQLAlchemy mentions (2)

  • Speak Your Queries: How Langchain Lets You Chat with Your Database
    Under the hood, LangChain works with SQLAlchemy to connect to various types of databases. This means it can work with many popular databases, like MS SQL, MySQL, MariaDB, PostgreSQL, Oracle SQL, and SQLite. To learn more about connecting LangChain to your specific database, you can check the SQLAlchemy documentation for helpful information and requirements. - Source: dev.to / about 2 years ago
  • My favorite Python packages!
    SQLModel is a library for interacting with SQL databases from Python code, using Python objects. It is designed to be intuitive, easy-to-use, highly compatible, and robust. It is powered by Pydantic and SQLAlchemy and relies on Python type annotations for maximum simplicity. The key features are: it's intuitive to write and use, highly compatible, extensible, and minimizes code duplication. The library does a lot... - Source: dev.to / over 2 years ago

Apache Calcite mentions (12)

  • Data diffs: Algorithms for explaining what changed in a dataset (2022)
    > Make diff work on more than just SQLite. Another way of doing this that I've been wanting to do for a while is to implement the DIFF operator in Apache Calcite[0]. Using Calcite, DIFF could be implemented as rewrite rules to generate the appropriate SQL to be directly executed against the database or the DIFF operator can be implemented outside of the database (which the original paper shows is more efficient).... - Source: Hacker News / almost 2 years ago
  • How to manipulate SQL string programmatically?
    Use a SQL Parser like sqlglot or Apache Calcite to compile user's query into an AST. Source: about 2 years ago
  • Parsing SQL
    One parser I think deserves a mention is the one from Apache Calcite[0]. Calcite does more than parsing, there are a number of users who pick up Calcite just for the parser. While the default parser attempts to adhere strictly to the SQL standard, of interest is also the Babel parser, which aims to be as permissive as possible in accepting different dialects of SQL. Disclaimer: I am on the PMC of Apache Calcite,... - Source: Hacker News / over 2 years ago
  • Semantic Diff for SQL
    Apache Calcite can do this, though it's not a beginner-friendly task: https://calcite.apache.org/. - Source: Hacker News / almost 3 years ago
  • OctoSQL allows you to join data from different sources using SQL
    You should look at Apache Calcite[0]. Like OctoSQL, you can join data from different data sources. It's also relatively easy to add your own data sources ("adapters" in Calcite lingo) and rules to efficiently query those sources. Calcite already has adapters that do things like read from HTML tables over HTTP, files on your file system, running processes, etc. This is in addition to connecting to a bunch of... - Source: Hacker News / almost 3 years ago
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What are some alternatives?

When comparing SQLAlchemy and Apache Calcite, you can also consider the following products

Sequelize - Provides access to a MySQL database by mapping database entries to objects and vice-versa.

Presto DB - Distributed SQL Query Engine for Big Data (by Facebook)

Hibernate - Hibernate an open source Java persistence framework project.

Apache Drill - Schema-Free SQL Query Engine for Hadoop and NoSQL

Entity Framework - See Comparison of Entity Framework vs NHibernate.

Open Data Hub - OpenDataHub