Parameterized SQL query

[purnima1]

Hi Experts,

I have one sql file(workphone.sql) which has one query written in that:

query >>


SELECT * FROM <TABLE_NAME> WHERE <COLUMN_NAME>=? AND <COLUMN_NAME2> IS NOT NULL

Now I am calling this in separate script

import cx_Oracle
from datetime import datetime


#reading query from file 

#f= open('C:/Users/pubhatia/Documents/learning/python/query/test.sql')
f = open('C:/Users/pubhatia/Documents/learning/python/query/work_phone.sql')
#print(f.read())
filer = f.read()
print(filer)

print(repr(filer))
f.close()
#filer3=filer
#source_name ='PWS'
source_name= ('PWS')
#filer=filer.replace("\'","")


	#print( repr(filer3 )		
filer2="select * from dual"

if filer==filer2:
 print('same value')
else:
 print ('no same ')

#create connection string
conn_str = u'user/pwd@db'
	#setting up connection 
conn = cx_Oracle.connect(conn_str)	
c = conn.cursor()
	#c.execute("select WORK_PHONE,source_sys_cd,source_sys_id  from mdm_people_standard where source_sys_cd ='%s' AND  WORK_PHONE IS NOT NULL"%(source_name))
c.execute(filer,'PWS')
start_time = datetime.now()
for row in c:
	print(row)
conn.close()
end_time = datetime.now()
print('Duration: {}'.format(end_time - start_time))

Now When I am using 3 formats I am getting error for all format

source_name= ('PWS',)
c.execute(filer,source_name)

source_name= ('PWS')
c.execute(filer,source_name)

source_name= ('PWS')
c.execute(filer,'PWS')

error I am getting for all scenario

Error:
Traceback (most recent call last):
  File "oracle_test.py", line 35, in <module>
    c.execute(filer,source_name)
cx_Oracle.DatabaseError: ORA-01036: illegal variable name/number

Please confirm how can we pass value in parameterised sql

---

Hi All,
I did some changes mentioned in below given link and its working fine

http://www.oracle.com/technetwork/articl...91105.html

If anyone has better resolution do let me now