To query a user's mobile phone and WeChat number, the following SQL statement can be used.

To intuitively understand join operations, we first build a simple example database that stores grocery items and their corresponding categories. The category information is stored in the categories ...

To ensure proper functionality and performance, we recommend placing the application folder in a location without spaces in the path, such as C:\BackupManager. This can help avoid potential issues ...

Bookings: To store information about booked tables in the restaurant including booking id, date and table number. Orders: To store information about each order such as order date, quantity and total ...