Simple to judge the MSSQL database version (2000 or _mssql)

One of the most interesting things you've found in the recent migration of MSSQL databases is that you can use a single statement to determine the version of the MSSQL database (the accuracy is not high):

SELECT * FROM Sys.servers

If you return the following information, you should be a 2000 database:

Message 208, Level 16, State 1, line 1th
Object name ' Sys.servers ' is invalid.

Conversely, if you return a message similar to the following, you might have a 2005 database

1 www-host SQL Server SQLNCLI www-host null NULL NULL 0

Reason: Sys.servers This object is not in 2000, in 2005.