With Table1 (8 rows) and Table2 (2 rows) sharing column id: Assume Table1 has ids 1–8; Table2 has ids 1–2 (matching subset). Inner Join: Returns only rows where id exists in both—max 2 rows (one per Table2 match). Left Join (Table1 LEFT Table2): 8 rows—all from Table1; Table2 columns NULL where no match. Right Join (Table1 RIGHT Table2): 2 rows—all from Table2; Table1 columns NULL where Table1 has no matching id (if Table2 has ids not in Table1)....
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