Question 176441 in PostgreSQL Question posted in
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Can I cancel a Postgresql transaction and do nothing?

I am using the following query to insert data to PostgreSQL tables user and password.

BEGIN; 
INSERT INTO users (user_id, user_username, user_name, user_surname) VALUES (?, ?, ?, ?); 
INSERT INTO passwords (user_id, user_password) VALUES (?, ?); 
COMMIT;

I would like to cancel the transaction in case of user_id or user_username conflict. I know ON CONFLICT (user_id, user_username) DO NOTHING may help in this case but I am afraid it won’t actually cancel the insertion to the password table.

How can I make it so in a case of conflict all of the transaction will be cancelled?

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2

Answers


  1. 0

    One way could to use ABORT instead of DO NOTHING. That would rollback the transaction. Please see https://stackoverflow.com/a/17259954/924036.

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  2. 0

    ON CONFLICT DO NOTHING means that when conflict occurs while inserting into a table, the row will not be inserted. ON CONFLICT DO UPDATE means that when conflict occurs while inserting a row into the table, the existing row that conflicts with the new row will be updated with the newer values.

    you can refer to ON CONFLICT docs

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