MySQL - Leonid Mamchenkov - Page 2

Metabase – Open Source business intelligence and analytics

Metabase is an Open Source business intelligence and analytics tool.  It supports a variety of databases and services as sources for data, and provides a number of data querying and processing tools.  Have a look at the GitHub repository as well.

And if you want a few alternatives or complimenting tools, I found this list quite useful.

Why Uber Engineering Switched from Postgres to MySQL

Why Uber Engineering Switched from Postgres to MySQL” is an interesting study with plenty of technical detail of how MySQL was a better choice than PostgreSQL for the very demanding growth of Uber.  These kinds of issues are probably way out of scope for any “regular Joe” application, but the insight into the differences of MySQL and PostgreSQL architectures is still useful.

Main PostgreSQL limitations covered by the study are:

  • Inefficient architecture for writes
  • Inefficient data replication
  • Issues with table corruption
  • Poor replica MVCC support
  • Difficulty upgrading to newer releases

Database Flow – modern, self-hosted web interface for SQL and GraphQL

Database Flow is a modern, Open Source, self-hosted, web-based tool for working with SQL databases and GraphQL APIs.  It supports a variety of the database engines: IBM DB2, Oracle, H2, PostgreSQL, MySQL, SQLite, Informix, and Microsoft SQL Server.  It features an advanced SQL editor, query plan analyzer, GraphQL client, schema explorer, charting, query history, and more.

The only visible downside so far is that it’s written in Java.

MySQL 8.0 release

MySQL 8.0 has been released and it brings the following new features, enhancements, and more:

  1. SQL Window functions, Common Table Expressions, NOWAIT and SKIP LOCKED, Descending Indexes, Grouping, Regular Expressions, Character Sets, Cost Model, and Histograms.
  2. JSON Extended syntax, new functions, improved sorting, and partial updates. With JSON table functions you can use the SQL machinery for JSON data.
  3. GIS Geography support. Spatial Reference Systems (SRS), as well as SRS aware spatial datatypes,  spatial indexes,  and spatial functions.
  4. Reliability DDL statements have become atomic and crash safe, meta-data is stored in a single, transactional data dictionary. Powered by InnoDB! 
  5. Observability Significant enhancements to Performance Schema, Information Schema, Configuration Variables, and Error Logging.
  6. Manageability Remote management, Undo tablespace management, and new instant DDL.
  7. Security OpenSSL improvements, new default authentication, SQL Roles, breaking up the super privilege, password strength, and more.
  8. Performance InnoDB is significantly better at Read/Write workloads, IO bound workloads, and high contention “hot spot” workloads. Added Resource Group feature to give users an option optimize for specific workloads on specific hardware by mapping user threads to CPUs.

TOP 10 MySQL 8.0 features for DBAs & OPS

Here’s a list of the TOP 10 MySQL 8.0 features for DBAs and OPS, with some detailed explanations of what they are and links to more information.  The features covered are:

  1. Temporary Tables Improvements
  2. Persistent global variables
  3. No more InnoDB System Tables
  4. Reclaim UNDO space from large transactions
  5. UTF8 performance
  6. Removing Query Cache
  7. Atomic DDLs
  8. Faster & More Complete Performance Schema (Histograms, Indexes, …) and Information Schema
  9. ROLES
  10. REDO & UNDO logs encrypted if tablespace is encrypted