濯君

BackgroundSQL, 'Structured Query Language', is a programminglanguage designed to manage data stored in relational databases. SQL operatesthrough simple, declarative statements. This keeps data accur

1.  创建表格CREATE TABLE table_name (column_1 data_type, column_2Data_type, column_3 data_type);例子：CREATE TABLE celbs (id INTEGER,name TXT,age INTEGER); 2.  添加一行INSERT INTO celebs (id, name,

USE CREATE TABLE doughnut_list(doughtnut_name VARCHAR(10),doughtnut_type VARCHAR(6));CREATE TABLE my_contacts(last_name VARCHAR(30),first_name VARCHAR(20),email VARCHAR(50),gender CHAR(1),b...