title: I have running json_object in oracle 12.1.0.2 and it is saying error . why?
body: <p>I have run this query .I am new to oracle.</p>
  
  <pre><code>&gt; CREATE TABLE sample_emp (   empno     NUMBER(4)    NOT NULL PRIMARY
  &gt; KEY,   ename     VARCHAR2(10),   hiredate  DATE,   sal      
  &gt; NUMBER(7,2) ); 
  &gt;  INSERT INTO sample_emp VALUES (7369, 'Smith',
  &gt; '17-DEC-1980',  800);
  &gt;  INSERT INTO sample_emp VALUES (7782, 'Clark',
  &gt; '09-JUN-1981', 2450);
  &gt;  INSERT INTO sample_emp VALUES (7839, 'King', 
  &gt; '17-NOV-1981', 5000); COMMIT;
  &gt; 
  &gt; SELECT * from sample_emp SELECT json_object ('ename' VALUE
  &gt; d.ename,'hiredate' VALUE d.hiredate) FROM sample_emp d
  </code></pre>
  
  <p>oracle version </p>
  
  <p><a href="https://i.stack.imgur.com/7nLJ3.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/7nLJ3.png" alt="enter image description here"></a></p>
  
  <p>error coming <a href="https://i.stack.imgur.com/Pumls.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Pumls.png" alt="enter image description here"></a></p>
  
  <p>Can we check that particular keyword exist in oracle so that i can check about </p>
  
  <blockquote>
    <p>json_object</p>
  </blockquote>
  
  <p>is present in oracle . and why this error is coming?</p>