Named Query with like in where clause

问题

Is it possible to have a like in a where clause in a named query? I am trying to do the following but am getting exceptions

@NamedQuery(name = "Place.getPlaceForCityAndCountryName",
query = "SELECT p FROM Place p WHERE " +
        "lower(p.city) like :city and " +
        "lower(p.countryName) like :countryName");

I tried adding % as you would do in normal SQL but get exceptions compiling.

Any pointers greatly appreciated!

Thanks

回答1:

You can't have the % in the NamedQuery, but you can have it in the value you assign the parameter.

As in:

String city = "needle";
query.setParamter("city", "%" + city + "%");

回答2:

You can also use CONCAT function

@NamedQuery(name = "Place.getPlaceForCityAndCountryName",
     query = "SELECT p FROM Place p WHERE " +
        "lower(p.city) like CONCAT(:city,'%')");

回答3:

@Query("select c from Curso c where c.descripcion like CONCAT(:descripcion,'%')")

List<Curso> findByDescripcionIgnoreCase(@Param("descripcion") String descripcion);

来源：https://stackoverflow.com/questions/10912320/named-query-with-like-in-where-clause