select * from table a, table b?

A very junior question:
What's the real meaning of select from two tables?
Like select * from table a, table b? (not joining them together)?
heyday2004Asked:
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HuyBDConnect With a Mentor Commented:
It will return the multiplier of rows.
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HuyBDCommented:
That cross join 2 tables, each row of each table will join all row with other table
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