python - 从python调用存储过程时获取列名和数据

Question

我正在使用 cx_Oracle 包从 python 调用 PL/SQL 存储过程。 PL/SQL 存储过程返回一个 SYS_REFCURSOR 作为 OUT 参数。我能够获取 REF_CURSOR 的值，但无法获取列的名称和值。

PFB 我的代码

result_set = self.__cursor__.callproc(call_procedure, parameters)    
result_set[index].fetchall()

fetchall() 只返回数组中的值，如

[
  "John",
  "B",
  "Doe",
  "111223333",
  "Fri, 09 May 1997 00:00:00 GMT",
  "212 Main St, Orlando, FL",
  "M",
  25000,
  "333445555"
]

但是我想要这样的东西

{
  "FirstName": "John",
  "MInit": "B",
  "LastName": "Doe",
  "SSN": "111223333",
  "DOE": "Fri, 09 May 1997 00:00:00 GMT",
  "Addr": "212 Main St, Orlando, FL",
  "Sex": "M",
  "Sal": 25000,
  "DNO": "333445555"
}

Answer 1

您可以从 cursor.description 中获取所有列名并使用 zip() 函数构造字典列表:

# prepare cursor and execute procedure
conn = ...
cursor = conn.cursor()
cursor.callproc(...)

# get only column names from cursor description
column_names_list = [x[0] for x in cursor.description]

# construct a list of dict objects (<one table row>=<one dict>) 
result_dicts = [dict(zip(column_names_list, row)) for row in cursor.fetchall()]

也应该对 SELECT 语句有效。