Querying from multiple tables in Android SQLite?

Question

I was wondering if it's possible (it should be) to query multiple tables simultaneously (several at once) in SQLite. Basically I have several tables that have the exact same columns, but the data in them is just organized by the table it's in. I need to be able to use SELECT to get data from the tables (I heard UNION could help), which matches a condition, then group the data by the table it's in.

In other words, would something like this be possible?

SELECT * FROM table1,table2,table3,table4,table5,table6 WHERE day=15 GROUP BY {table}

I'd rather not resort to having to query the tables individually as then I would have a bunch of Cursors that I'd have to manually go through and that would be difficult when I only have one SimpleCursorAdapter? Unless a SimpleCursorAdapter can have several Cursors?

Thanks.

EDIT: The structure of my tables:

Main Table - contains references to subtables in a column "tbls"
             and meta-information about the data stored in the subtables

    Subtable - contains reference to subsubtables in a column "tbls"
               and meta-information about the data stored in the
               subsubtables

        Subsubtable - contains the actual entries

Basically these tables just make it easier to organize the hierarchical data structure. I suppose instead of having the subsubtables, I could keep the actual entries in the subtable but add a prefix, and have a separate table for the meta-information. It just seems it would be harder to delete/update the structure if I need to remove a level in this data set.

Answer 1

In the end, I decided to forgo having many subsubtables, and instead adding another column like Tim and Samuel suggested. It will probably be more efficient as well then chaining SELECTs with UNION.