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  • torndb在python3中运用

    #连接数据库:
    db = torndb.Connect()

    #查询一条的数据
    get()

    #查询多行的数据
    query()

    #创建数据表,数据库
    execute()

    #插入一条数据:
    sql = "insert into user(username,password) values(%s,%s)"
    db.insert(sql,"张三","kkk")

    #一次插入多条数据
    sql = "insert into user(username,password) VALUES (%s,%s)"
    db.insertmany(sql,[
    ("user10","kkkkkkkkk"),
    ("user11","kkkkkkkkk"),
    ("user12","kkkkkkkkk"),
    ("user13","kkkkkkkkk"),
    ("user14","kkkkkkkkk"),
    ("user15","kkkkkkkkk"),
    ("user16","kkkkkkkkk"),
    ("user17","kkkkkkkkk"),
    ("user18","kkkkkkkkk"),
    ])

    #更新数据
    sql = "update user set username= %s"
    db.update(sql,"大雷哥")

    #删除数据
    sql ="delete from user where id =1"
    db.execute(sql)

    #插入并返回插入行的id
    sql ="insert into user(username,password) VALUES(%s,%s)"
    result_id = db.execute_lastrowid(sql,"bruce","kkk")

    #批量插入,但是返回插入的第一行的id
    sql ="insert into user(username,password) VALUES(%s,%s)"
    result_id = db.executemany_lastrowid(sql,[
    ["王星辰宇","123"],
    ["tom","123"],
    ["jack","123"],
    ["alex","123"],
    ])

    #返回影响的行数
    sql ="delete from user where id>20"
    result_id = db.execute_rowcount(sql)


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  • 原文地址:https://www.cnblogs.com/leigepython/p/9055917.html
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