CODEWITHSUNDEEP
pythonpython-3.xoracle-databasepython-2.7cx-oracle
querysoso
querysoso

Reputation: 33

Executing PL/SQL procedure from python with sys.odcinumberlist as parameter

Given a PL/SQL procedure:

PROCEDURE MyProc(myvar IN sys.odcinumberlist, curout OUT sys_refcursor);

How do I execute it from python using cx_Oracle? I was trying 

cursor.callproc('MyProc', (param, cursor_out))

with param being [1, 2, 3] or cursor.arrayvar(cx_Oracle.NUMBER, [1, 2, 3]) but it results in error 'wrong number or type of arguments'.

Upvotes: 3

Views: 316

Answers (1)

Kaushik Nayak
Kaushik Nayak

Reputation: 31676

Use conn.gettype to define the SYS.ODCINUMBERLIST object. Then use it to assign a list of values (numbers)

Sample procedure

create or replace procedure MyProc( myvar  IN  sys.odcinumberlist, 
                                    curout OUT sys_refcursor )
AS
BEGIN
    open curout for select * from TABLE(myvar);
END;
/

Python code

conn = cx_Oracle.connect('usr/pwd@//localhost:1521/DB')
cur = conn.cursor()

tableTypeObj  = conn.gettype("SYS.ODCINUMBERLIST")
params = tableTypeObj.newobject()

po_cursor_out = cur.var(cx_Oracle.CURSOR)

params = tableTypeObj([1,2,3])

cur.callproc('hr.myproc', [ params, po_cursor_out])
result_cur = po_cursor_out.getvalue()

for row in result_cur:
    print(row[0])

Result

1
2
3

Upvotes: 2

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