mysql Worm Replication Basics

Worms replicate themselves, as the name implies, and the number multiplies, that is, increases exponentially. The focus of mysql worm replication is replication.

How to understand the concept of mysql worm replication?

To put it simply, we query the data contents in a data table that we already have, and then copy and add it to another specified data table. This operation is called worm replication.

Then the worm replication step is to find out the data first, and then add the found data once.

The principle of mysql worm replication is to use its original data as a source and insert it continuously.

Under what circumstances will mysql worm replication be used?

For example, when we need to replace the data table, we can use worm replication to query the data in the data table through select statement, and then copy it to the new data table. Of course, the method of replacing data tables can usually be directly imported and exported.

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

We can understand it this way, because mysql worm replication causes data to multiply or exponentially increase.

Therefore, we can test the pressure and efficiency of this table by replicating worms and making the data table produce a large amount of data, that is, expanding to the order of magnitude of 1.

Basic syntax of worm replication:

insert into +  Data table name  + Field list /* + from  Data table name ;

Here we can make a 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 the order of magnitude of 1, 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 table. In the later articles, we will continue to introduce the specific use of worm replication in mysql with examples. Thank you for your support for this site.