Articles

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

MySQL VALUES Statement: Create a Table of Rows

Use MySQL’s standalone VALUES statement as a table value constructor. Learn ROW syntax, default columns, aliases, ORDER BY, LIMIT, and how it differs from INSERT VALUES.

MySQL VALUES() Function in ON DUPLICATE KEY UPDATE

Learn what MySQL VALUES(column) returns in an upsert, why it is deprecated in 8.0.20+, and how to replace it with row and column aliases.

How to Size a MySQL Connection Pool

Calculate a safe MySQL pool ceiling across app replicas, then tune it with database and application metrics instead of guessing.

Enable the MySQL 26.7 Thread Pool on Debian 13

Enable and verify MySQL 26.7 Community Thread Pool on Debian 13, then inspect its Performance Schema tables and tune only after testing.

MySQL Error 2015: Named Pipe Connection on Windows

Troubleshoot MySQL Error 2015 on Windows by checking named-pipe support, the pipe name, and client access permissions.

Upgrade MySQL 9.7 LTS to 26.7 Innovation on Debian 13

Plan a Debian 13 upgrade from MySQL 9.7 LTS to 26.7 Innovation with Oracle’s APT repository, a verified backup, and package checks.

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.