Cons. 1  Cannot span multiple databases... at least not easily. 2  All entities (tables, views, etc) need a primary key. 3  If you want to update a single column in a 100+ required columns table (not my table design), you have to pull down all 100 columns to make the update. Or use a Stored Procedure. I've had issues with some default values defined on SQL server not getting pulled into the entity model after a new record gets added. Usually this is with computed values, or values that get added in an INSERT Trigger On occasion, the SQL queries get badly written and are slow to execute.
Buying in advance is cheaper than buying at the station on the day and you could save an average of 43% on your train ticket. Advance tickets usually go on sale 12 weeks in advance, so the earlier you book the more likely you are to save.Ticket Alert.uying in advance is cheaper than buying at the station on the day and you could save an average of 43% on your train ticket. Advance tickets usually go on sale 12 weeks in advance, so the earlier you book the more likely you are to save. Ticket Alert.
Most train travelers in Italy spend each rail-travel day taking relatively short rides on the MilanâVeniceâFlorenceâRome circuit. For these trips (most of which cost less than $60 for a second-class ticket), it's cheaper to buy point-to-point train tickets than a rail pass (since most cost more than $60 per day).ince it's affordable to buy train tickets locally in both Italy and Greece, and since Greece has just a few rail lines operating, this pass is not a wise move for most travelers (those traveling by ferry between Greece and Italy and taking several Greek ferries may do better with the Attica Eurail Pass).