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MySQL -- the secret of lock -- how to lock data
2022-04-23 07:59:00 【Dream river dream】
First look at the structure of the watch

Here's the data

The experiment begins
Business 1

Business 2

Get lock occupancy information of current database

It can be seen that the transaction 1 and 2 Surface operation staffid Index and staffno Indexes , The primary key corresponding to the locked record
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