Named queries are a useful way to create reusable queries in the Repository Query API, so you do not have to build a new query object each time. Also, named queries let you specify precisely the SQL statements to be used by a query, rather than using the generalized SQL generated by the SQL repository. A named query is a Repository Query or SQL statement that can be defined by the developer and be invoked by some String name.
The basic Query API requires you to create a Query by calling several methods to create QueryExpressions, and combine those QueryExpressions into Query objects. When you use named queries, after you have defined the query, you need to call only one method to execute the desired Query. This can reduce object creation and simplify custom code.
Currently, named queries are supported in the SQL repository and the Integration Repository.
