python 链接云端数据库/远程数据库 可以使用原始Odbc

class MySqlOdbc:
    def __init__(self):
        self.sqlhead = None     # 当前数据链接句柄
        self.mycursor = None    # 当前游标

    """
    
    关闭数据库
    
    """

    def close(self):
        if self.mycursor:
            self.mycursor.close()

    """
    
    链接云端远程数据库 ,isautocommit：自动提交,可以省去手动self.mycursor.commit()过程; PORT:端口一般随意，除非有限制
    
    """
    #p_strinfo = 'DRIVER={SQL Server};SERVER=222.222.166.222;PORT=1433;DATABASE=sqldbname;UID=username;PWD=123456'
    def linksql(self,p_strinfo, isautocommit=True, isansi=False, ntimeout=0):
        try:
            import pyodbc
            self.sqlhead = pyodbc.connect(p_strinfo, autocommit=isautocommit, ansi=isansi, timeout=ntimeout)
            self.mycursor = self.sqlhead.cursor()
            return False
        except Exception as errinfo:
            print(errinfo)
            return  True

    """

    查询远程数据库
    sqlcmd = "select * from tables where id = '123'"
    
    """

    def query(self, sqlcmd):
        if self.mycursor:
            self.mycursor.execute(sqlcmd)
            rows = self.mycursor.fetchall()     # 取得所有结果
            for irow in rows:                   # 取得1行结果
                for ir in irow:                 # 取得1行结果tuple
                    print(ir)

    def executecmd(self,sqlcmd):
        # insert into tbSnInfo(SN,Type,IsValid) values('%s','%s','%s')
        # UPDATE tbSnInfo SET IsValid='False' WHERE SN = '%s'
        return self.mycursor.execute(sqlcmd)