Insert into a MySQL table or update if exists

mysql sql insert-update upsert
Keshan picture Keshan · Nov 17, 2010 · Viewed 893.7k times · Source

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.

Answer

Donnie picture Donnie · Nov 17, 2010

Use INSERT ... ON DUPLICATE KEY UPDATE

QUERY:

INSERT INTO table (id, name, age) VALUES(1, "A", 19) ON DUPLICATE KEY UPDATE    
name="A", age=19

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