How much data can a single MySQL table store at most?

        Recently, we are working on the database and tables , A problem was found during the operation , Use mycat table , It is found that a single table can only be saved 500 All the data , So there is a question ？

mycat Can only do 500 The data table of 10000 ？

So I simulated it locally , Create a new data table to perform data insertion , It is found that a single table can only be used 500 Ten thousand storage .

Asked Du Niang , Du Niang's explanation is , When the amount of data is large 500 When all , We should consider the sub base and sub table , The saying in the industry is that single table recommended storage 500 Ten thousand data . But it doesn't seem so tall . What we need to do is to optimize data at tens or even hundreds of millions of levels . In this way , We still have to divide many watches . Can't achieve the expected effect .

I can see that there are more than 100 million pieces of data in a single table of brother's database ！ Why is this different . Look down carefully . There is a new saying .

In fact we mysql There is no such statement about the upper limit of the data table , because mysql Storage capacity and mysql It doesn't matter much in itself . What does that depend on . I have summarized the following points

1. The limitation of data volume is related to your operating system , As mentioned above , Develop locally , With the help of some development tools , such as Navicat such ,Navicat The single table limit of is 500 ten thousand . If you use an online cloud server . According to the size of your server memory , You will have to limit the amount of data . For example 2GB Of memory , The amount of data is generally 2000 All around

2. According to the primary key of your table , The primary key is set to id int Usually , here int The number of digits can be limited , If your int by 32 position , When your server memory is large enough , At this time, your data volume may be able to store 2^32-1 Data . If the primary key is set to tyint, At this time, only a few hundred pieces of data can be stored

If you have different opinions , Can stay in the comment area