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How to map calculated properties with JPA and Hibernate
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JPA doesn't offer any support for derived property so you'll have to use a provider specific extension. As you mentioned, @Formula is perfect for this when using Hibernate. You can use an SQL fragment:
@Formula("PRICE*1.155")
private float finalPrice;
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How can I stop a running MySQL query?
...asic approach, but I think using KILL QUERY is slightly preferable to KILL for this case. That way the query is killed, but not the connection.
– Ike Walker
Sep 24 '10 at 18:12
3
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How to get distinct values for non-key column fields in Laravel?
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I have a table "messages" (used for a chat), and I want to get the latest message that the authenticated user has received from each conversation. Using groupBy I can get just one message, but I get the first, and I need the last message. Seems that orderBy...
for each loop in Objective-C for accessing NSMutable dictionary
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for (NSString* key in xyz) {
id value = xyz[key];
// do stuff
}
This works for every class that conforms to the NSFastEnumeration protocol (available on 10.5+ and iOS), though NSDictionary is one of the few collecti...
In PHP, how do you change the key of an array element?
I have an associative array in the form key => value where key is a numerical value, however it is not a sequential numerical value. The key is actually an ID number and the value is a count. This is fine for most instances, however I want a function that gets the human-readable name of the arr...
MySQL: Selecting multiple fields into multiple variables in a stored procedure
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Your syntax isn't quite right: you need to list the fields in order before the INTO, and the corresponding target variables after:
SELECT Id, dateCreated
INTO iId, dCreate
FROM products
WHERE pName = iName
share
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The preferred way of creating a new element with jQuery
...those dollar signs necessary or a typo? $div. I haven't seen that syntax before, but I'm new to Jquery.
– felwithe
Feb 22 '15 at 15:05
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Spring MVC: How to return image in @ResponseBody?
... can specify "produces" in @RequestMapping annotation. Example below works for me out of box. No need of register converter or anything else if you have web mvc enabled (@EnableWebMvc).
@ResponseBody
@RequestMapping(value = "/photo2", method = RequestMethod.GET, produces = MediaType.IMAGE_JPEG_VALU...
How to create a date and time picker in Android? [closed]
...ateSlider library referenced by Rabi all the way below seems to be perfect for this.
– Stephan Branczyk
Aug 7 '11 at 21:09
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How to send an email from JavaScript
... recomended
Send an email using only JavaScript
in short:
1. register for Mandrill to get an API key
2. load jQuery
3. use $.ajax to send an email
Like this -
function sendMail() {
$.ajax({
type: 'POST',
url: 'https://mandrillapp.com/api/1.0/messages/send.json',
data: ...