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，我想获取查询结果，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？
我以前用过 execute 但它只有 returns 1 表示成功，失败时会出现其他错误。

Answer 1

tdengine github 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()

希望这些可以帮到你

如何使用 TDengine python 连接器获取结果

How to fetch the result using TDengine python connector

python

tdengine