title: Want to pass String to Query Spring data with @query
body: <p>I just want to pass two string to my query with Spring data, 
  my query looks like :</p>
  
  <pre><code>@Query("select ts.talent from T_LinkTalentSkill ts , where ts.skill || '_'||ts.lnLevel in (a,b) group by 1 having count(*)=2 ")
  public List&lt;T_Talent&gt; searchBySkillTalent(@Param("a") String a,@Param("b") String b);
  </code></pre>
  
  <p>i tried to pass a and b but i got : Validation failed for query</p>