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Editorial Team
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Asked: 2026-06-16T00:27:24+00:00

#1452 – Cannot add or update a child row: a foreign key constraint fails

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#1452 – Cannot add or update a child row: a foreign key constraint
fails (schoolzone., CONSTRAINT #sql-10e0_7f2_ibfk_1 FOREIGN KEY
(teacherid) REFERENCES teacher (teacherid))

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1 Answer

  1. Editorial Team

    The reason why you are getting the error is because you are inserting a record on table schoolZone with value of the column teacherid that doesn’t exist on table teacher. Remember that the table you are inserting the record is dependent on table teacher.

    Below is an example that shows how you get the error.

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