如何使用 TDengine python 连接器获取结果

Question

对于TDengine数据库的python连接器，我想得到查询结果而不是知道是否执行成功。我只想获取结果，我应该使用哪个 api？
我之前用过execute，但它只返回1表示成功，失败时返回其他错误。

Answer 1

tdengine的githup repos中有一些例子，链接是https://github.com/taosdata/TDengine/tree/develop/tests/examples/python

   # query data and return data in the form of list
    try:
        c1.execute('select * from db.t')
    except Exception as err:
        conn.close()
        raise(err)

    # Column names are in c1.description list
    cols = c1.description
    # Use fetchall to fetch data in a list
    data = c1.fetchall()

    for col in data:
        print(col)

    print('Another query method ')

    try:
        c1.execute('select * from db.t')
    except Exception as err:
        conn.close()
        raise(err)

    # Use iterator to go through the retreived data
    for col in c1:
        print(col)

    conn.close() 

希望这些对你有帮助。