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production-checklist-mysql

MySQL production checklist

Last reviewed May 28, 2026 Content v20260528
Track mode
sql_sandbox
Means
SQL sandbox
Reading
~1 min
Level
beginner

This lesson

This lesson teaches MySQL production checklist: the SQL patterns, schema habits, and query reasoning you need before advancing in MySQL.

Teams query MySQL production checklist on every MySQL codebase—skipping it leaves gaps in debugging and data reviews.

You will apply MySQL production checklist in contexts like: Web apps on shared hosting, ecommerce, and many startups’ first production DB.

Copy MySQL SQL into the mysql client, local MySQL/MariaDB, or DB Fiddle (MySQL dialect)—use DESCRIBE and EXPLAIN where lessons show them. The in-browser lab ships later; mysql client is the practice path now.

When earlier lessons and MCQs feel comfortable, or when you deploy PHP/Laravel/WordPress on MySQL in production.

Backups tested, utf8mb4 everywhere, InnoDB only, monitoring slow queries, least-privilege users, and migration discipline before launch.

Checklist

  • InnoDB + utf8mb4 on all tables; SQL mode strict in staging/prod
  • Indexes on hot WHERE/JOIN columns; slow query log reviewed
  • Replication lag monitored; failover runbook documented
  • mysqldump or managed backups with successful restore drill
  • Separate DB users per env; no SUPER in app role
  • Connection limits sized for FPM/workers × pool

Next steps

Compare PostgreSQL for greenfield choices. Revisit SQL fundamentals when mentoring. Deepen PHP PDO patterns.

Important interview questions and answers

  1. Q: Backup without restore test?
    A: Unknown recovery—treat as incomplete.
  2. Q: Shared hosting MySQL?
    A: Limited SUPER—design within provider constraints.

Self-check

  1. List three pre-launch checks.
  2. Why restore drill?

Tip: Restore drill quarterly—backups without restore are hope.

Interview prep

utf8mb4 prod?

Server, database, table, and connection must align.

Untested backup?

Unknown recovery time—not real DR.

Interview tip Lesson completion confidence

Can you explain this lesson in 30 seconds without reading notes?

Not saved yet.

Check yourself

Multiple choice — immediate feedback.

Discussion

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Starter discussion topics

  • utf8mb4 everywhere?
  • Restore tested?

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