Insert into a MySQL table or update if exists
Asked 07 September, 2021
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I want to add a row to a database table, but if a row exists with the same unique key I want to update the row.

For example:

INSERT INTO table_name (ID, NAME, AGE) VALUES(1, "A", 19);

Let’s say the unique key is ID, and in my Database, there is a row with ID = 1. In that case, I want to update that row with these values. Normally this gives an error.
If I use INSERT IGNORE it will ignore the error, but it still won’t update.

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