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Asked: 2026-06-11T14:12:24+00:00

I couldn’t find any suitable explanation on this so here goes: I have tableA

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I couldn’t find any suitable explanation on this so here goes:

I have tableA and tableB.
tableA has the fields column1, column2, column3.
tableB has the fields columnA, column1, columnC, columnD, columnE.

column1 in tableA is a primary key. column1 in tableB is a foreign key that references column1 in tableA. column1 in tableB has a ON UPDATE CASCADE constraint.

My question then is.. If I change the values of every field in tableA, will tableB also obtain those same values in its fields?

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1 Answer

  1. Editorial Team

    No way, it’ll update just the foreign key in TableB. The constraints in MySQL only updates the related column.

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