title: CodeIgniter and Oracle database - ActiveRecord insert() is adding double quotes in query
body: <p>I am using CodeIgniter framework version 2.2 with Oracle 11g database.</p>
  
  <p>In database.php my config looks like this:</p>
  
  <p><img src="https://i.stack.imgur.com/QAGrT.png" alt="enter image description here"></p>
  
  <p>The database connectivity with the CodeIgniter is fine. The problem occurs when I try to insert a simple record to database using ActiveRecord of CodeIgniter. Double quotes are getting added to the tablename and column names in the query. Hence I get this error:</p>
  
  <p><img src="https://i.stack.imgur.com/iJe8n.png" alt="enter image description here"></p>
  
  <p><strong>My controller:</strong></p>
  
  <p><img src="https://i.stack.imgur.com/72V4L.png" alt="enter image description here"></p>
  
  <p><strong>and the Model:</strong> </p>
  
  <p><img src="https://i.stack.imgur.com/WHX10.png" alt="enter image description here"></p>
  
  <p>When I try to insert data directly without insert() function, the data gets added to the database:</p>
  
  <p><img src="https://i.stack.imgur.com/kdpoZ.png" alt="enter image description here"></p>
  
  <p>But I need to use the ActiveRecord's insert method.</p>
  
  <p>How to get rid of the double quotes?</p>