I need to make a comparison of several million titles, to see the intersection and difference.

The data looks something like this:

```
Title        Platform
Terminator    1
Terminator    2
Abyss         1

```

I want to find out things such as "Show me all titles that are on Platform 1, but not 2 ("The Abyss")", "Show me all titles that are on both platforms ("Terminator"), Show me all titles that are on Platform 2 but not Platform 1 (NULL).

I only have two platforms to compare, 1 and 2. Should I store all the data in one table, or store it in two separate tables with the same structure? Which would provide better performance?