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Why does mysql lock the watch? Many novices are not very clear about this. In order to help you solve this problem, the following editor will explain it in detail. People with this need can come and learn. I hope you can gain something.

Why does mysql lock the table?

1. Ensure the correctness of the data and prevent the problems caused by database concurrency control.

two。 Ensure the atomicity, integrity and consistency of the data

Such as:

Input

SHOW PROCESSLIST

Only the first 100 pieces of data can be displayed

You need to view all the data, you need to enter

SHOW FULL PROCESSLIST

So you can see all the data.

MySQL is a relational database management system developed by the Swedish company MySQL AB and belongs to the products of Oracle. MySQL is one of the most popular relational database management systems. In the aspect of WEB application, MySQL is one of the best RDBMS (Relational Database Management System) application software. MySQL is a relational database management system in which relational databases store data in different tables instead of all data in one large warehouse, which increases speed and flexibility.

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