Can I have multiple primary keys in a single table?

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Can I have multiple primary keys in a single table?

Oct 25, 2018 in Database by Neha
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1 answer to this question.

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A Table can have a Composite Primary Key which is a primary key made from two or more columns. For example:

CREATE TABLE userdata (
  userid INT,
  userdataid INT,
  info char(200),
  primary key (userid, userdataid)
);
answered Oct 25, 2018 by Frankie
• 9,810 points

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