Python cx_Oracle bind variables

Question

I am a Python newbie, I am having troubles in the use of bind variables. If I execute the code below everything works fine.

bind= {\"var\" : \"ciao\"}
sql =          


        

Answer 1

@ffarquest says that using a dictionary isn't supported by cx_Oracle but it is in fact, @giovanni-de-ciantis was just using it incorrectly.

---

named_params = {'dept_id':50, 'sal':1000}
query1 = cursor.execute(
    'SELECT * FROM employees WHERE department_id=:dept_id AND salary>:sal',
    named_params
)

OR

query2 = cursor.execute(
    'SELECT * FROM employees WHERE department_id=:dept_id AND salary>:sal',
    dept_id=50,
    sal=1000
)

---

In the given example, I believe the second reference to :bind would need to be replaced with something different because it isn't being done in sequential order. Also, renamed the variable bind to get rid of confusion.

bind_dict = {bind:"var" : diff:"ciao"}
sql = "select * from sometable where somefield=:bind and otherfield=:diff"
cur.prepare(sql)
cur.execute(sql, bind_dict )

---

This article is from 2007 showing that you can use a dictionary: http://www.oracle.com/technetwork/articles/dsl/prez-python-queries-101587.html