Regular expression for recognizing all tables in a sql statement

Hi all
I need a regular expression for recognizing all the tables bane in a geberic statement.
Unlikely i need a regular expression that manage also inner join .I 'm sorry but this matter is new for me and i cannot find any usefull help in the web.
Regards

If you insist it should be something like:
"SELECT ([A-Z0-9_]+)[.][A-Z0-9_]+(,([A-Z0-9_]+)[.][A-Z0-9_]+)* FROM (([A-Z0-9_]+)[.][A-Z0-9_]+) INNER JOIN (([A-Z0-9_]+)[.][A-Z0-9_]+) ON .+" plus spaces etc... Yes it's for this kind of statements only.
But SQL parser is better because anyway you'll need to at least remove duplicates from founded names...

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