Article ID: 1759, created on Mar 26, 2007, last review on May 8, 2014

  • Applies to:
  • Plesk 8.1 for Windows


When attempting to switch Plesk database provider from MySQL to MSSQL you get an error:

Error converting data type nvarchar to bigint.
   at (VADOConnection::execute line 90)
   at VDatabaseSwitch::SwitchDb(VDatabaseSwitch::SwitchDb line 174)

  at (psaobsolete::PSAMySQLDatabase::SwitchPleskDatabase line 654)


This problem has been solved in Plesk version 8.1.1. Consider upgrading Plesk to the latest version.

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