創建數據庫

            
              import sqlite3

# 連接數據庫(如果不存在則創建)
conn = sqlite3.connect('test.db')
print("Opened database successfully")

# 創建游標
c = conn.cursor()

# SQL語句
sql = """
        CREATE TABLE STUDENTS(
            ID INT PRIMARY KEY NOT NULL,
            NAME TEXT NOT NULL,
            AGE INT NOT NULL,
            ADDRESS CHAR(50)
        );
    """
# 創建表
c.execute(sql)

print("Table created successfully")

# 關閉游標
c.close()

# 提交事物
conn.commit()

# 關閉連接
conn.close()
            
          

插入數據

            
              import sqlite3

# 連接數據庫(如果不存在則創建)
conn = sqlite3.connect('test.db')
print("Opened database successfully")

# 創建游標
c = conn.cursor()

# 插入數據
c.execute("INSERT INTO STUDENTS (ID,NAME,AGE,ADDRESS) VALUES (0, 'Paul', 32, 'California')")
c.execute("INSERT INTO STUDENTS (ID,NAME,AGE,ADDRESS) VALUES (0, 'Allen', 25, 'Texas')")
c.execute("INSERT INTO STUDENTS (ID,NAME,AGE,ADDRESS) VALUES (0, 'Teddy', 23, 'Norway')")
c.execute("INSERT INTO STUDENTS (ID,NAME,AGE,ADDRESS) VALUES (0, 'Mark', 25, 'Rich-Mond')")

print("Records created successfully")

# 關閉游標
c.close()

# 提交事物
conn.commit()

# 關閉連接
conn.close()
            
          

刪除數據

            
              import sqlite3

# 連接數據庫(如果不存在則創建)
conn = sqlite3.connect('test.db')
print("Opened database successfully")

# 創建游標
c = conn.cursor()

# 刪除數據
c.execute("DELETE FROM STUDENTS WHERE ID=2;")

# 關閉游標
c.close()

# 提交事物
conn.commit()

print("Total number of rows deleted :", conn.total_changes)

print("Operation done successfully")

# 關閉連接
conn.close()
            
          

修改數據

            
              import sqlite3

# 連接數據庫(如果不存在則創建)
conn = sqlite3.connect('test.db')
print("Opened database successfully")

# 創建游標
c = conn.cursor()

# 修改數據
c.execute("UPDATE STUDENTS SET age = 25 WHERE ID=1")

# 關閉游標
c.close()

# 提交事物
conn.commit()

print("Total number of rows updated :", conn.total_changes)

print("Operation done successfully")

# 關閉連接
conn.close()
            
          

查找數據

            
              import sqlite3

# 連接數據庫(如果不存在則創建)
conn = sqlite3.connect('test.db')
print("Opened database successfully")

# 創建游標
c = conn.cursor()

# 查找數據
cursor = c.execute("SELECT id, name, age, address FROM STUDENTS")
for i in cursor:
    print('id:', i[0])
    print('name:', i[1])
    print('age:', i[2])

# 關閉游標
c.close()

print("Operation done successfully")

# 關閉連接
conn.close()