Connect to the database without specifying a data table? I have three tables in it. How does it know which one to use?
Is it because of this reason that the effect cannot come out?
Data database, you only need to set up specific data tables when querying. Multiple tables can be seen through the table names...
If you can't see the table name, there must be a default table. The operation cannot be performed without specifying the data table
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
Data database, you only need to set up specific data tables when querying. Multiple tables can be seen through the table names...
If you can't see the table name, there must be a default table. The operation cannot be performed without specifying the data table