dialect

SQLite - No Dialect mapping for JDBC type: 0 (Hibernate)

由 让人想犯罪 __ 提交于 2019-12-04 06:11:49
问题 I have a SQLite Datatable with string value as id and a BLOB value for a picture. I want to know if some entry with a specific id exists in the table. Query query = entityManager .createNativeQuery("SELECT logo_id FROM logo WHERE logo_id = ?"); query.setParameter(1, id); int count = query.getResultList().size(); But if I execute the query I get this error. javax.persistence.PersistenceException: org.hibernate.MappingException: No Dialect mapping for JDBC type: 0 at org.hibernate.ejb

SQLite - No Dialect mapping for JDBC type: 0 (Hibernate)

由 怎甘沉沦 提交于 2019-12-02 12:41:54
I have a SQLite Datatable with string value as id and a BLOB value for a picture. I want to know if some entry with a specific id exists in the table. Query query = entityManager .createNativeQuery("SELECT logo_id FROM logo WHERE logo_id = ?"); query.setParameter(1, id); int count = query.getResultList().size(); But if I execute the query I get this error. javax.persistence.PersistenceException: org.hibernate.MappingException: No Dialect mapping for JDBC type: 0 at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1367) at org.hibernate.ejb

Add a column to all MySQL Select Queries in a single shot

由 牧云@^-^@ 提交于 2019-12-02 08:09:15
问题 Trying to add a comment to all MySQL Select Queries in my web application at runtime. For example, the original queries in the code looks like: select a,b,c from ...... select x,y from... All of these need to be modified at runtime to: select a,b,c /*Comment*/ from ... select x,y /*Comment*/ from ... The application runs on Hibernate 4.2.1. Only solution I can think of is extending the org.hibernate.dialect.MySQLDialect and add the /*Comment*/ in the new CustomMySQLDialect . A little confused

Thymeleaf layout dialect and th:replace in head causes title to be blank

由 可紊 提交于 2019-12-01 04:44:23
I'm following this tutorial: http://www.thymeleaf.org/doc/layouts.html (got to Thymeleaf Layout Dialect section). In there you can find an example: <!DOCTYPE html> <html> <head> <!--/* Each token will be replaced by their respective titles in the resulting page. */--> <title layout:title-pattern="$DECORATOR_TITLE - $CONTENT_TITLE">Task List</title> ... </head> <body> <!--/* Standard layout can be mixed with Layout Dialect */--> <div th:replace="fragments/header :: header"> ... </div> <div class="container"> <div layout:fragment="content"> ... </div> <div th:replace="fragments/footer :: footer"

Derby dialect for hibernate

由 梦想的初衷 提交于 2019-12-01 02:46:50
问题 As per this link there is no support mentioned for derby dialect for 4.2 hibernate. Is Apache Derby not supported by Hibernate? 回答1: There are more dialects if you look at the javadoc. As of the time of the latest update to this answer, they are: DerbyDialect (deprecated, see HHH-6073), DerbyTenFiveDialect , DerbyTenSixDialect , and DerbyTenSevenDialect . For versions of Derby after 10.7, the DerbyTenSevenDialect dialect would be the most appropriate, assuming no new Derby dialect classes are

Thymeleaf layout dialect and th:replace in head causes title to be blank

由 ∥☆過路亽．° 提交于 2019-12-01 01:51:53
问题 I'm following this tutorial: http://www.thymeleaf.org/doc/layouts.html (got to Thymeleaf Layout Dialect section). In there you can find an example: <!DOCTYPE html> <html> <head> <!--/* Each token will be replaced by their respective titles in the resulting page. */--> <title layout:title-pattern="$DECORATOR_TITLE - $CONTENT_TITLE">Task List</title> ... </head> <body> <!--/* Standard layout can be mixed with Layout Dialect */--> <div th:replace="fragments/header :: header"> ... </div> <div

Retrieve auto-detected hibernate dialect

由 ╄→尐↘猪︶ㄣ 提交于 2019-11-30 01:40:15
问题 Hibernate has the option to auto-detetect the hibernate.dialect . How can I retrieve that auto-detected value? I was unable to find any information on this. 回答1: You can retrieve it from the SessionFactory but you'll need to cast it to SessionFactoryImplementor first: SessionFactory sessionFactory = ...; // you should have this reference Dialect dialect = ((SessionFactoryImplementor) sessionFactory).getDialect(); The above will retrieve the dialect instance currently being used by session

Registering a SQL function with JPA and Hibernate

由 …衆ロ難τιáo~ 提交于 2019-11-28 13:52:11
I would like to know what's the best way to register a custom SQL function with JPA/Hibernate . Do I have to go through extending the MysqlInnodb dialect or is there a better way? Can anyone please provide code samples and pointers to relevant documentation? Yes extending the dialect is a good way of registering custom SQL function. Add something like this in your Dialect classes constructor. registerFunction("current_timestamp", new NoArgSQLFunction(Hibernate.TIMESTAMP) ); registerFunction("date", new StandardSQLFunction(Hibernate.DATE) ); Look at the source code of one of the existing

NHibernate: How to solve this “dialect” configuration issue

由 假如想象 提交于 2019-11-28 12:18:10
Problem Encountered At runtime, I always get the following NHibernate.MappingException : "Could not compile the mapping document: GI.InventoryManager.CYB.Mappings.Part.hbm.xml" Yes, its build action is set to Embedded Resource . The InnerException says: "Could not find the dialect in the configuration" Required Information Here is my configuration file named hibernate.cfg.xml : <?xml version="1.0" encoding="utf-8" ?> <hibernate-configuration xmlns="urn:nhibernate-configuration-2.2" > <session-factory> <property name="connection.driver_class">NHibernate.Driver.SqlClientDriver</property>

Can different GCC dialects be linked together?

由 社会主义新天地 提交于 2019-11-27 08:53:12
I know that in principle this is probably undefined behaviour, but in the interest of dealing with a large project, here's my question about GCC: Suppose I compile one transation unit with gcc -std=c++98 , and another with -std=c++11 , using the exact same compiler installation. Is there any sort of guarantee that I can link the two object files and obtain a well-defined program? As far as I can tell, the potential problems can only come from different views of the library headers due to differing macros, and those in turn would at best add new member functions, but never member objects, to
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