Ralf Schönian schrieb:
> t_rectenwald schrieb:
>> Hello,
>>
>> I attempting to execute an Oracle query, and write the results to a
>> file in CSV format. To do so, I've done the following:
>>
>> import cx_Oracle
>> db = cx_Oracle.connect('user/[EMAIL PROTECTED]')
>> cursor = db.cursor()
>> cursor.arraysize = 500
>> cursor.execute(sql)
>> result = cursor.fetchall()
>>
>> The above works great. I'm able to connect to the database and print
>> out the results as a list of tuples. Here is where I get lost. How
>> do I work with a "list of tuples?" My understanding is that a "list"
>> is basically an array (I don't come from a Python background). Tuples
>> are a "collection of objects." So, if I do...
>>
>> print result[0]
>>
>> I get the first row of the query, which would make sense. The problem
>> is that I cannot seem to write tuples to a file. I then do this...
>>
>> csvFile = open("output.csv", "w")
>> csvFile = write(result[0])
>> csvFile.close
>>
>> This generates an exception:
>>
>> TypeError: argument 1 must be string or read-only character buffer,
>> not tuple
>>
>> So, I'm a bit confused as to the best way to do this. I guess I could
>> try to convert the tuples into strings, but am not sure if that is the
>> proper way to go. Any help would be appreciated. I've also seen a
>> csv module out there, but am not sure if that is needed in this
>> situation.
>>
>> Best Regards,
>> Tom
>
> Hi,
>
> have a look at the csv Module: http://docs.python.org/lib/csv-examples.html
>
> Just iterate over your result.
>
> # Untested
> import csv
> writer = csv.writer(open("some.csv", "wb"))
>
> for row in result:
> row = map(str,row)
# should be
myRow = list(row)
row = map(str,myRow)
> writer.writerows(row)
> writer.close()
>
>
> Ralf Schoenian
>
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