Dbeaver dumps the database, restores the database, and executes scripts, all of which use the local client. If there is no configuration, it will automatically download from the Internet. However, in an environment without a network, you need to manually configure the local client. This article explains how to configure and what files are needed.
There are multiple configuration client entries. The three functions in the above figure go to the last step. If there is no client, the network download will be automatically triggered. An error will be reported if there is no network environment. So the last step needs to be manually configured, and then click to continue. Or select Database>Edit Connection>Local Client>Browse. 
Then "add database address"... the most important is the required file
The files are copied in the mysql installation directory.
After configuration, it may report that the dll file cannot be found. This may be caused by a pirated operating system or an old version that cannot be updated. Reference: The lack of dll files in some old operating systems makes the latest software unusable_Baoge66's Blog-CSDN博客