python的mysql数据库创建表及插入数据

#创建表

#导入pymysql
import pymysql
#创建链接
con = pymysql.connect(host='localhost',user='root',password='123456',database='zhy',port=3306)

#创建游标对象
cur = con.cursor()
#编写创建表的sql
sql = """
    create table t_student(
    sno int primary key auto_increment,
    sname varchar(30) not null,
    age int(20),
    score float(3,1)
    ) 
    """
#执行sql
try:
    cur.execute(sql)
    print("创建表成功")
except Exception as e:
    print(e)
    print("创建失败")
finally:
    cur.close()
    con.close()

#插入表

#导入模块
import pymysql
#窗帘连接
con = pymysql.connect(host='localhost',user='root',password='123456',port=3306,database='zhy')
#创建游标对象
cur = con.cursor()
#编写sql语句
sql = 'insert into t_student (sname,age,score) value(%s,%s,%s)'
try:
    #执行sql
    #cur.execute(sql, ('王五', 20, 85))#插入一条数据
    cur.executemany(sql,[('王五',20,85),('张三',18,20),('王五',19,23)]) #插入多条数据
    #提交事务
    con.commit()
    print("插入成功")
except Exception as e:
    print(e)
    con.rollback()
    print("执行插入数据失败")
finally:
    #关闭连接
    con.close()
    cur.close()