How to safely update data in MySQL

06, 06, 2022
bullgare
Databases
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CREATE TABLE IF NOT EXISTS my_tmp_copy LIKE my;

INSERT INTO my_tmp_copy
SELECT * FROM my;

UPDATE my_tmp_copy SET order_count = 5 WHERE customer_id > 0;

RENAME TABLE my TO my_old, my_tmp_copy TO my;

CREATE TABLE IF NOT EXISTS my_tmp_copy LIKE my;

INSERT INTO my_tmp_copy

SELECT * FROM my;

UPDATE my_tmp_copy SET order_count = 5 WHERE customer_id > 0;

RENAME TABLE my TO my_old, my_tmp_copy TO my;

How to safely update data in MySQL

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