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Hibernate interview questions

!!! Hibernate interview questions !!!

SQL Queries In Hibernate..




You may express a query in SQL, using createSQLQuery() and let Hibernate take care of the mapping from
result sets to objects. Note that you may at any time call session.connection() and use the JDBC Connection
directly. If you chose to use the Hibernate API, you must enclose SQL aliases in braces:
List cats = session.createSQLQuery(
"SELECT {cat.*} FROM CAT {cat} WHERE ROWNUM<10",
"cat",
Cat.class
).list();
List cats = session.createSQLQuery(
"SELECT {cat}.ID AS {cat.id}, {cat}.SEX AS {cat.sex}, " +
"{cat}.MATE AS {cat.mate}, {cat}.SUBCLASS AS {cat.class}, ... " +
"FROM CAT {cat} WHERE ROWNUM<10",
"cat",
Cat.class
).list()
SQL queries may contain named and positional parameters, just like Hibernate queries.

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