SQL Server automatically backs up all databases

Copy codeThe Code is as follows:
Use master
Declare @ DbName varchar (60)
Declare @ BackSql varchar (1000)
Declare myCursor cursor
SELECT [name] FROM SYSDATABASES
Where [name] not in ('master', 'model', 'msdb', 'tempdb ')
Order by [name]
Open myCursor
Fetch next from myCursor into @ DbName
While (@ FETCH_STATUS = 0)
Begin
If datename (weekday, getdate () = 'weday' -- overwrites
Begin
Select @ BackSql = 'backup DATABASE ['+ @ DbName +'] to disk = ''e: \ DbBackUp \ '+ @ DbName + 'wednesday. Bak'' with format'
End
Else-covers
Begin
Select @ BackSql = 'backup DATABASE ['+ @ DbName +'] to disk = ''e: \ DbBackUp \ '+ @ DbName + 'autoback. Bak' with format'
End
Exec (@ BackSql)
Fetch next from myCursor into @ DbName
End
Close myCursor
DEALLOCATE myCursor