标签:ip add multi add spec 执行sql exe fetchone socket 查询
1、connect(参数)
Connection = Connect(*args, **kwargs)
Establish a connection to the MySQL database. Accepts several
arguments:
host: Host where the database server is located
user: Username to log in as
password: Password to use.
database: Database to use, None to not use a particular one.
port: MySQL port to use, default is usually OK. (default: 3306)
bind_address: When the client has multiple network interfaces, specify
the interface from which to connect to the host. Argument can be
a hostname or an IP address.
unix_socket: Optionally, you can use a unix socket rather than TCP/IP.
charset: Charset you want to use.
sql_mode: Default SQL_MODE to use.
read_default_file:
Specifies my.cnf file to read these parameters from under the [client] section.
2、db(数据库连接对象)的方法
1、db.close():断开连接
2、db.commit():提交到数据库执行
3、db.cursor():创建游标
4、db.rollback():回滚
3、cursor游标对象的方法
1、execute(SQL命令):执行SQL命令
2、close():关闭游标对象
3、fetchone():获取查询结果的第1条数据
4、fetchmany(n):获取n条数据
5、fetchall():获取所有的数据
##fetchmany(n)和fetchall()得到的结果一定是一个大元组套着小元组((),(),()...)
标签:ip add multi add spec 执行sql exe fetchone socket 查询
原文地址:https://www.cnblogs.com/zengsf/p/9589015.html