Articles

How to Install MySQL 26.7 Innovation on Debian 13

Install MySQL 26.7 Innovation on Debian 13 using Oracle’s APT repository, select the mysql-innovation series, and verify the server package.

How to Upgrade MySQL 8.0 to MySQL 8.4 LTS

Plan a safe MySQL 8.0 to 8.4 LTS upgrade: verify platform support, run MySQL Shell Upgrade Checker, rehearse on a clone, and validate backups.

How to Upgrade MySQL 8.4 to MySQL 9.7 LTS

Plan a MySQL 8.4 to 9.7 LTS upgrade: confirm the supported path, run MySQL Shell Upgrade Checker, rehearse a restorable backup, and use the right package workflow.

How to Upgrade PostgreSQL 14 to PostgreSQL 18

PostgreSQL 14 support ends Nov 12, 2026. Plan an upgrade to 18 with pg_upgrade checks, checksum compatibility, a tested backup, and application validation.

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.