My local navicate connection remote mysql, burst 2003?

as the title
it is possible for others to connect to my local mysql, but I connected to other people"s mysql (windows system) directly reported in 2003, what are the circumstances
PS. Someone else"s firewall has been turned off

Mysql navicat

Mar.03,2021

https://blog.csdn.net/gisrede.

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Run the sql file directly using navicat to report error 1064. The error message is as follows
problem description run the sql file directly using navicat. Error 1064: [ERR] 1064 - You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ; but if you copy the text ...

Mysql navicat

Jun.10,2022

MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1b3730f-2b8be.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b3730f-2b8be.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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