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If I add a UNIQUE index on the email,password columns, will the index check if:
email unique AND is password unique, oremail,password is unique, as in, it would allow u1@mail.com, 123 and u2@mail.com, 123Apologies if my thoughts seem abrupt here, I’m having difficulty in expressing them today for some reason. Thanks in advance!
Your second answer is the correct one. The combination of the two fields must be unique.
For #1 you would need a separate unique index on each column.