Basic knowledge points of mysql worm replication

Worms replicate, as the name implies, by themselves, and their numbers multiply, or increase exponentially. The key to MySQL worm replication is replication.

How to understand the concept of MySQL worm replication?

To put it simply, we query the data content in an existing data table and then copy and add it to another specified data table. This operation is called worm replication.

The steps of worm replication are to find the data first and then add the found data again.

The principle of MySQL worm replication is to use its own original data as the source and insert it continuously.

Under what circumstances would mysql worm replication be used?

For example, when we need to replace a data table, we can use worm replication to query the data in the data table through a select statement, and then copy it to the new data table. Of course, the method of changing the data table can usually be done directly by importing and exporting.

So in most cases, mysql worm replication is used for mysql testing and test data!

We can understand it this way, because the replication of the MySQL worm will cause the data to increase exponentially.

Therefore, we can use worm replication to make the data table generate a large amount of data, that is, expand to a certain order of magnitude to test the pressure and efficiency of this table.

The basic syntax of worm replication is:

insert into + data table name + field list/* + from data table name;

Below we can make some simple summary:

mysql worm replication:

1. Copy data from the existing data table to the new data table;

2. It can quickly expand the data in the table to a certain order of magnitude, which is mostly used to test the pressure and efficiency of the table.

This article is about the concept of worm replication in MySQL data tables. In later articles, we will continue to introduce the specific usage of worm replication in MySQL with examples. Thank you for your support of 123WORDPRESS.COM.