What is meant by a Named SQL Query in hibernate and how it’s used?

Ref:- http://career.guru99.com/hibernate-interview-questions/

Named SQL queries are those queries which are defined in mapping file and are called as required anywhere.
For example, we can write a SQL query in our XML mapping file as follows:

[xml]

<sql-query name = “studentdetails”>
<return alias=”std”/>
SELECT std.STUDENT_ID AS {std.STUDENT_ID},
std.STUDENT_DISCIPLINE AS {std.discipline},

FROM Student std WHERE std.NAME LIKE :name
</sql-query>

[/xml]

Then this query can be called as follows:

[java]

List students = session.getNamedQuery(&amp;quot;studentdetails&amp;quot;)
.setString(&amp;quot;TomBrady&amp;quot;, name)
.setMaxResults(50)
.list();

[/java]