How to use SQL database

First open the folder where sqlite3.exe is located, as shown in Figure 1

figure 1

Change the path to cmd in the folder path, as shown in Figure 2

figure 2

Input the information in the pop-up cmd window as shown in Figure 3.

image 3

sqlite3 tichiceliang.db

Where tichiceliang is the database name. Then press enter and enter .table in cmd. You can see that a new file is created in the folder directory, as shown in Figure 4. The last file in the picture is the database file created.

Figure 4

Create a table in the database. The table name is celiang. The fields in the table include a-k, as shown in Figure 5 (note that ";" is added at the end during runtime).

Figure 5

Enter the .tables query, as shown in Figure 6, celiang appears, indicating that the table is successfully created (.tables indicates that all tables in the current database are displayed)

Figure 6

Enter select * from celiang; query the contents of the table. Input insert into celiang(a,b,c,d,e,f,g,h,i,j,k) values(1,2,3,4,5,6,7,8,9,10,11 );Write content into the table, as shown in Figure 7

Figure 7

Then use select * from celiang to query the table contents. The results are shown in Figure 8.

Figure 8

Reference video:Video