Pro-Server EX does not support the DB feature (Data View) of Pro-Server with Pro-Studio.
If you have used the DB feature with Pro-Server with Pro-Studio, the information of the virtual DB will not be imported with Pro-Server EX Ver. 1.0.

Pro-Server EX Ver. 1.20 and higher support "MES Action" as a new data base storage feature.
* To use the "MES Action" feature, it is necessary to purchase the license separately.

See →MES Action Reference Manual
Pro-Server EX Manual Download