[Zope-DB] DCOracle2 with a Stored Procedure that Returns REFCURSOR / ORA TIMESTAMP DataType Issue

[Maan M. Hamze]

To give an update:
To run a stored procedure which returns a ref cursor, I tried:
c1 = db.cursor()
c2 = db.cursor()
sql = "storedProcedureName(:inparam1, :inparam2, etccc, :outparam)"
options = (inparam1, inparam2, etcccc, c2)
c1.execute(sql, options)
As recommended below.
This did not work.

However, this worked:
c1 = db.cursor()
c2 = db.cursor()
c2 = c1.procedures.storedProcedureName(INparam1, INparam2, etc..)
Only the INparams are given as arguments.  c2 is returned as a cursor
OUTparam.
Then,
r = c2.fetchall(), or
r = c2.fetchone()
Etc.....

This was causing a segmentation fault on a Sun Solaris box.
On Windows, I got an actual error message.  While fetching, the cursor
has a field of ora datatype TimeStamp.  This was crashing DCOracle2.  a
to_char solved the issue.
I am using DCOracle2 and Oracle 10 on Solaris (and Windows XP).
Did anyone run into issues of handling TimeStamp oracle data type with
DCOracle2?
Maan


-----Original Message-----
From: Maan M. Hamze [mailto:mmhamze at pleiades.net] 
Sent: Saturday, March 17, 2007 5:32 PM
To: zope-db at zope.org
Subject: Re: [Zope-DB] DCOracle2 with a Stored Procedure that Returns
REFCURSOR

"m.banaouas" banaouas.medialog at wanadoo.fr:
options = "(2714, " + "'" + "99999999" + "'," + "36, 1, c2)"

it's wrong!
you must give a sequence as second parameter of execute method.

So you do like this:
options = (2714, '99999999',36, 1, c2)
c1.execute(sql, options)
------------------
I tried it both ways.
With what you suggest:
Import DCOracle2
db = DCOracle2.connect(connectionString)
c1 = db.cursor()
c2 = db.cursor()
options = (2714, '99999999', 36, 1, c2)
sql = "storedProcedureName(:INparam1, :INparam2, :INparam3, :INparam4,
:OUTparam)
c1.execute(sql, options)

I am getting now:
Traceback (most recent call last):
  File "<stdin>", line 1, in ?
  File "/opt/python/lib/python2.4/site-packages/DCOracle2/DCOracle2.py",
line 98
7, in execute
    self._cursor.bindbypos(i, p)
ValueError: invalid data type bound

Printing options yield:
>> print options
(5920, '99999999', 36, 1, <DCOracle2.DCOracle2.cursor instance at
0x19eee0>)
Would this be causing the invalid data type bound error above?

Also, should not the following work:
c2 = c1.storedProcedureName(2714, '99999999', 36, 1)  ??
Maan


Maan M. Hamze a écrit :
 > Hello -
 > Thanks for your help.  I am still getting errors -
 > You wrote:
 > sql = "sp1(INparam1, :INparam2, :INparam3, :INparam4, :ref_cur)"
 >
 > Did you mean:
 > sql = "sp1(:INparam1, :INparam2, :INparam3, :INparam4, :ref_cur)"
 > (notice :INparam1 instead of INparam1)
 >
 > Assume sp1 is hrpofficial, INparam1 = 2714, INparam2 = '99999999',
 > INparam3 = 36, and INparam4 = 1
 >
 > db = DCOracle2.connection(connectionString)
 > c1 = db.cursor()
 > c2 = db.cursor()
 > sql = "hrpofficial(:INparam1, :INparam2, :INparam3, :INparam4,
 > :ref_cur)"
 > options = "(2714, " + "'" + "99999999" + "'," + "36, 1, c2)"
 > c1.execute(sql, options)
 >
 > I am getting an error:
 > DatabaseError: (900, 'ORA-00900: invalid SQL statement')
 >
 > Any hints?
 > Thanks again,
 > Maan
 >
 > for row in C2:
 >   ...
 >
 > Maan M. Hamze a écrit :
 >> I am using DCOCralce2 with Python 2.41, and Oracle 9.
 >> I have a stored procedure (sp1) that takes 4 IN parameters, with one
 > OUT
 >> parameter.  The OUT parameter is a **ref_cursor** that holds a data
 > set.
 >> I am doing the following:
 >> db = DCOracle2.connection(connectionString)
 >> C1 = db.cursor()
 >> C2 = db.cursor()
 >> #I run the following holding the result into the cursor C2
 >> #since the OUT param is a ref_cur
 >> C2 = C1.sp1(INparam1, INparam2,INparam3,INparam4, ref_cur)
 >>
 >> I expect to get a data set
 >> I know there is data when sp1 is run
 >> But I am getting an empty data set when I fetch data via C2 cursor.
 >> Do you have any idea how to make this work when a stored procedure
has
 > a
 >> ref_cur OUT parameter?
 >> Thanks,
 >> Maan
 >>
 >>
 >> _______________________________________________
 >> Zope-DB mailing list
 >> Zope-DB at zope.org
 >> http://mail.zope.org/mailman/listinfo/zope-db
 >>





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