title: CX ORACLE - Python :: Update Statement not working
body: <p>I am facing starange issue I am not able to update the ORACLE DB Table from Python using UPDATE statement. The DB connection is good and I can fetch the records.</p>
  
  <p>Whenever I am updating the characters / alphanumeric string values I am getting following error.</p>
  
  <p>Continuously I am getting error ::
   cx_Oracle.DatabaseError: ORA-00904:  : invalid identifier</p>
  
  <p>Surprisingly, for the Numeric Field value updates it's not an issue.</p>
  
  <p>Python Version - 3.7
  CX_Oracle - 7.1
  Windows 10 (Personal Machine)
  Oracle 11.2 R2</p>
  
  <pre><code>#python Code
  
  import cx_Oracle
  
  conn = cx_Oracle.connect('SYSTEM/Aditya201$@//localhost:1521/JTORCL')
  c = conn.cursor()
  
  # Update Rows
  #statement = 'UPDATE TEST_JT SET EMP_NAME = "JSXX YA" WHERE EMP_ID = 1'
  c.execute(statement)
  
  conn.commit()
  c.close()
  conn.close()
  </code></pre>
  
  <p>Update Statement not working with non numeric update values as shown above</p>