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org.hibernate.MappingException: Could not determine type for: java.util.List, at table: College, for
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You are using field access strategy (determined by @Id annotation). Put any JPA related annotation right above each field instead of getter property
@OneToMany(targetEntity=Student.class, mappedBy="college", fetch=FetchType.EAGER)
private List<Student> students;
...
SQL Server insert if not exists best practice
...ts table with your existing competitors Table and find the new competitors by filtering the distinct records that don´t match int the join:
INSERT Competitors (cName)
SELECT DISTINCT cr.Name
FROM CompResults cr left join
Competitors c on cr.Name = c.cName
where c.cName is null
New ...
Linq to SQL how to do “where [column] in (list of values)”
...t would be, I can't remember whether LINQ to SQL enforces case-sensitivity by default or lets the db settings govern it.
– Jon Skeet
May 31 '17 at 20:36
1
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How to properly create composite primary keys - MYSQL
...xing purposes then correct? As in I wouldn't be able to reference a record by using this composite, I would still have to so do an UPDATE info ... WHERE t1ID=11209 AND t2ID=437 ?
– filip
Apr 29 '11 at 20:28
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Multiple HttpPost method in Web API controller
...oblem would be to use Route which lets you specify the route on the method by annotation:
[RoutePrefix("api/VTRouting")]
public class VTRoutingController : ApiController
{
[HttpPost]
[Route("Route")]
public MyResult Route(MyRequestTemplate routingRequestTemplate)
{
return nu...
How can I add the new “Floating Action Button” between two widgets/layouts
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This layout did the trick for me! I'm using FAB by futuresimple - it's pretty simple to add & use, enjoy!
– Roman
Jan 12 '15 at 19:34
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How do I stop Entity Framework from trying to save/insert child objects?
...t with database object? Why should we need to take care of the association by ourselves? Taking care of the navigation property during adding new object is something like moving the database operations from SQL to C#, cumbersome to the developers.
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Use JSTL forEach loop's varStatus as an ID
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The variable set by varStatus is a LoopTagStatus object, not an int. Use:
<div id="divIDNo${theCount.index}">
To clarify:
${theCount.index} starts counting at 0 unless you've set the begin attribute
${theCount.count} starts countin...
Hibernate: “Field 'id' doesn't have a default value”
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In many cases this problem can also be resolved by just dropping the offending table (or tables), assuming that Hibernate is set up to automatically create/manage the DB schema. To drop tables from a managed schema, SET foreign_key_checks = 0; is your friend. Just be sur...
How can I make a JPA OneToOne relation lazy
...ly slow. I profiled the view and noticed that there was one query executed by hibernate which took 10 seconds even if there only were two object in the database to fetch. All OneToMany and ManyToMany relations were lazy so that wasn't the problem. When inspecting the actual SQL being executed, I...