Articles

For side-by-side syntax and behavior across database engines, browse the cross-database SQL comparison guides.

How to Upgrade PostgreSQL 17 to PostgreSQL 18

Plan a PostgreSQL 17 to 18 major-version upgrade with pg_upgrade: check extensions and checksums, test backups, use check mode, and verify the new cluster.

MySQL Error 1524: Plugin 'mysql_native_password' Is Not Loaded

Fix MySQL Error 1524 on MySQL 8.4 by switching accounts to caching_sha2_password, or temporarily enable the deprecated plugin while migrating.

MySQL Error 2059: Authentication Plugin Cannot Be Loaded

Troubleshoot client-side MySQL Error 2059 by checking connector support, loaded client libraries, plugin directories, and authentication compatibility.

MySQL Error 6125: Missing Unique Parent Key

Fix MySQL Error 6125 by referencing a complete PRIMARY or UNIQUE key, or adding a justified unique index to the parent table.

How to Install MySQL 9.7 LTS on Ubuntu 22.04

Install MySQL 9.7 LTS on Ubuntu 22.04 from Oracle’s APT repository, verify the Jammy candidate, and create a database-scoped application account.

How to Install MySQL 9.7 LTS on Ubuntu 24.04

Install MySQL 9.7 LTS on Ubuntu 24.04 with Oracle’s APT repository, verify the selected package, and create a database-scoped application account.

SQLite JSONB: When and How to Use It

Learn how SQLite JSONB stores JSON in an internal BLOB, how to convert between JSON text and JSONB, and what performance and compatibility limits matter.

How to Install MySQL 9.7 on macOS with Homebrew

Install MySQL 9.7 LTS with Homebrew on Apple Silicon, run it as a local service, secure the root account, and create a restricted application user.

How to Install MySQL 9.7 on Windows

Install MySQL 9.7 LTS on supported Windows systems using the MSI and MySQL Configurator, keep network access local, and create a restricted application account.

Install MariaDB Server on Windows with the MSI Installer

Install MariaDB on 64-bit Windows using the official MSI, configure a local service and root password, then create a restricted application account.