Maximum Number of Tables in MySQL (InnoDB) – Up to 4 Billion Tables
A recent poll revealed that MySQL with the InnoDB engine can support up to four billion tables, a limit dictated by the underlying file system rather than MySQL itself, and the official documentation confirms this massive capacity.
Yesterday a poll was launched asking how many tables can be created in a MySQL database; 38 people participated, 14 (36%) correctly chose "more than one hundred million" and learned that InnoDB allows up to 4 billion tables, although the exact number may be constrained by the operating system.
According to the official MySQL documentation: MySQL has no limit on the number of tables. The underlying file system may have a limit on the number of files that represent tables. Individual storage engines may impose engine‑specific constraints. InnoDB permits up to 4 billion tables.
The translated meaning is that MySQL imposes no intrinsic table‑count limit, but the file system and storage engine can restrict it; InnoDB specifically permits up to 4 billion tables.
Note that the unit is "billion" (10⁹), not "hundred", "thousand", or "million", which underscores the enormous scale.
Poll details and results can be viewed at the linked article MySQL can create how many tables . Thank you to everyone who participated!
Signed-in readers can open the original source through BestHub's protected redirect.
This article has been distilled and summarized from source material, then republished for learning and reference. If you believe it infringes your rights, please contactand we will review it promptly.
Full-Stack Internet Architecture
Introducing full-stack Internet architecture technologies centered on Java
How this landed with the community
Was this worth your time?
0 Comments
Thoughtful readers leave field notes, pushback, and hard-won operational detail here.