Python-Oracle传入光标输出参数

Question

我试图在python和oracle db之间调用存储过程.我遇到的问题是将光标传递给参数.

Oracle存储过程基本上是:

create or replace procedure sp_procedure(
    cid int, 
    rep_date date,
    ret out sys_refcursor
) is
begin

  open ret for 
  select  
 ...
  end;

调用数据库的python代码是:

import cx_Oracle
from datetime import date

connstr='user/pass@127.0.0.1:2521/XE'
conn = cx_Oracle.connect(connstr)
curs = conn.cursor()

cid = 1
rep_date = date(2011,06,30)

curs.callproc('sp_procedure', (cid, rep_date, curs))

错误是:

curs.callproc('sp_procedure', (cid, rep_date, curs))
cx_Oracle.DatabaseError: ORA-01036: illegal variable name/number

我也试过传递一个字典作为keywordsParameters:

cid = 1
rep_date = date(2011,06,30)

call_params = {'cid': cid, 'rep_date': rep_date, 'ret': curs}
curs.callproc('sp_procedure', (cid, rep_date, curs), call_params)

返回相同的错误.

谢谢.

Answer 1

经过几个小时的谷歌搜索和追踪/错误,这是解决方案:

cid = 1
rep_date = date(2011,06,30)

l_cur = curs.var(cx_Oracle.CURSOR)
l_query = curs.callproc('sp_procedure', (cid,rep_date,l_cur))

l_results = l_query[2]

for row in l_results:
    print row

# Column Specs
for row in l_results.description:
    print row

Answer 2

尝试这个：

curs = con.cursor() 
out_curs = con.cursor() 

curs.execute("""
BEGIN 
    sp_procedure(:cid, :rep_date, :cur); 
END;""", cid=cid, rep_date=rep_date, ret=outcurs)