title: ORA-01747: invalid user.table.column
body: <pre><code>create table class_1(column1,column2)
  </code></pre>
  
  <p>while inserting values</p>
  
  <pre><code>INSERT INTO class_1 (column1, column2, [Section]) 
  VALUES(1, 'First')
  </code></pre>
  
  <blockquote>
    <p>Erorr: SQL Error: ORA-01747: invalid user.table.column, table.column, or column specification<br>
    01747. 00000 -  "invalid user.table.column, table.column, or column specification"</p>
  </blockquote>