I am trying to get the latest booked courses (unique). I have tried the following with the Doctrine querybuilder: Without the orderby it works but it will traverse the bookings ascending. I need the latest booked courses. With this query I am getting this error: SQLSTATE[42000]: Syntax error or access violation: 1055 Expression #1 of ORDER BY clause is not
Tag: orm
SQLQuery.list() returns the same entries
In my java code I have written like this. This query returning same records again and again. But in database I have only single record. String queryString = “select e.business_event_id, e.event_name …
Why does not Hibernate set @DynamicInsert by default
Could anyone explain to me why Hibernate does not set the @DynamicInsert annotation by default and allow entities to generate an INSERT based on the currently set properties? What’s the reason for not using @DynamicInsert and, therefore, including all entity properties by default? Answer What @jb-nizet said. Also, dynamic-insert=”true” is a bad idea in my book. Skipping null fields from
How to use money data type in Java, SQL, ORM
What are best practises in using money data type in Java application? Money should be in double variable? What about rounding, currencies and so on. Are special libraries for this? And what about ORM and SQL in most popular databases. As I know not in all SQL engines is Money data type. In that case NUMERIC(15,2), DECIMAL(15,2) or REAL data