When I try to rename the Alias of a DocumentType in Umbraco 4.7.1.1 using SQL CE 4, it throws an error about the SQL query:

Error running NonQuery:
SQL Statement:
truncate table cmsContentXml

Exception:
System.Data.SqlServerCe.SqlCeException: There was an error parsing the query. [ Token line number = 1,Token line offset = 1,Token in error = truncate ]
  at System.Data.SqlServerCe.SqlCeCommand.ProcessResults(Int32 hr)
  at System.Data.SqlServerCe.SqlCeCommand.CompileQueryPlan()
  at System.Data.SqlServerCe.SqlCeCommand.ExecuteCommand(CommandBehavior behavior, String method, ResultSetOptions options)
  at System.Data.SqlServerCe.SqlCeCommand.ExecuteNonQuery()
  at SqlCE4Umbraco.SqlCeApplicationBlock.ExecuteNonQuery(String connectionString, CommandType commandType, String commandText, SqlCeParameter[] commandParameters)