cx_ORACLE传递参数ORA-01008错误

Question

我正在尝试执行这个Python脚本：

import pandas as pd
import numpy as np
import os
import cx_Oracle
import csv

con = cx_Oracle.connect('CIRCU3/CIRCU3@localhost:1521/korcl')

params = {'year': str(2016)}
df = pd.read_sql_query(script_SQL, con, params)

其中script_SQL是：

SELECT
kwhIT AS kwhIT,
kwhCLT AS kwhCLT,
TEMPEXT AS T
FROM T_MEASURES_TE
WHERE 
ID_SITE = 21
AND TO_CHAR(TIMESTAMP, 'YYYY') = :year

并返回错误ORA-01008：并非所有变量都绑定。

我无法弄清楚问题出在哪里。谢谢你的帮助。

Answer 1

参数未正确传递给pandas.read_sql_query（）。您需要以下代码：

df = pd.read_sql_query(script_SQL, con, params=params)