Bug #98833 Lock tables does not work from phpmyadmin.... But of from SQL Client as SQLyog
Submitted: 4 Mar 2020 14:45 Modified: 6 Mar 2020 16:32
Reporter: Axel Falck Email Updates:
Status: Unsupported Impact on me:
None 
Category:MySQL Server Severity:S1 (Critical)
Version: OS:Windows (uwamp + MySQL 5.7.11)
Assigned to: MySQL Verification Team CPU Architecture:Any (64 bits)
Tags: Lock table unlock phpmyadmin client SQL

File: Maximum allowed size is 50MB.
Description:
Privacy:

If the data you need to attach is more than 50MB, you should create a compressed archive of the data, split it to 50MB chunks, and upload each of them as a separate attachment.

To split a large file: