title: Unique Constraint Violated in SQL
body: <p>I'm trying to add data into my SQL Database, and when I enter the following code:</p>
  
  <pre><code>INSERT INTO EMPLOYEES 
  VALUES('100','STEVEN','King','sking@yahoo.com','PSEUDO',
  to_date('17-JAN-87','dd-mm-yy'),'AD_VP',24000,0.45,90);
  </code></pre>
  
  <p>I get the following error:</p>
  
  <pre><code>ERROR at line 1:
  ORA-00001: unique constraint (ODEHat01.SYS_C00292486) Violated
  </code></pre>
  
  <p>I am not sure what I am doing wrong, because when I describe my table(<code>desc employees;</code>), it shows that I have 10 fields, and I am trying to enter data into ten fields. Any help would be very much appreciated so I can enter the data into my employees table. Thank you.</p>