mysql insert on duplicate key

Posted 2020-10-10 Go_Forward

mysql 插入数据，如果存在，更新

INSERT INTO subs
  (subs_name, subs_email, subs_birthday)
VALUES
  (?, ?, ?)
ON DUPLICATE KEY UPDATE
  subs_name     = VALUES(subs_name),
  subs_birthday = VALUES(subs_birthday)

如果批量操作，使用python:

sql = "insert into elec_workshop_15min_2017(start_time, "               "name " \"values(%(start_time)s, %(name)s) ""on DUPLICATE KEY UPDATE stat_time = values(start_time), "               "name = values(name)"

mysql_conn.executemany(sql, data)  # data is a list of dict, for method to insert batch of tuple, google it.

ref: https://stackoverflow.com/questions/15383852/sql-if-exists-update-else-insert-into