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When to use EntityManager.find() vs EntityManager.getReference() with JPA
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private String name;
private Integer age;
}
public class PersonServiceImpl implements PersonService {
public void changeAge(Integer personId, Integer newAge) {
Person person = em.getReference(Person.class, personId);
// person is a proxy
person.setAge(newAge...
Markdown and including multiple files
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@leas Glad to be of service... I haven't worked on it in quite a few years but I always mean to get back to it at some point. Hopefully it does well for your purposes.
– Sethen
Dec 11 '19 at 22:31
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ASP MVC in IIS 7 results in: HTTP Error 403.14 - Forbidden
...he following steps:
Navigate to the following node: Internet Information Services --> World Wide Web Services --> Common HTTP Features
Make sure that the "HTTP Error Redirection" option is selected.
-or-
Navigate to the following node: Internet Information Services --> World Wide We...
What can I do to resolve a “Row not found or changed” Exception in LINQ to SQL on a SQL Server Compa
... by an application front-end to the database. These trigger execution in a service, each on different threads. The user can hit a 'cancel' button which changes all the outstanding command's status. The service finishes each one but finds that 'Pending' was changed to 'Cancelled' and cannot change it...
Liquibase lock - reasons?
...uibase. In case it is Spring Boot 2 it is possible to extend liquibase.lockservice.StandardLockService without the need to run direct SQL statements which is much cleaner. E.g.:
/**
* This class is enforcing to release the lock from the database.
*
*/
public class ForceReleaseLockService extend...
MD5 algorithm in Objective-C
...://developer.apple.com/library/mac/documentation/Security/Conceptual/cryptoservices/GeneralPurposeCrypto/GeneralPurposeCrypto.html#//apple_ref/doc/uid/TP40011172-CH9-SW1
Search for Cryptographic Services Guide on Apple developer site.
...
Best way to check if a URL is valid
..._url = "https://www.xrepeater.com";
$posted_url = "https://xrepeater.com/services";
$posted_url = "xrepeater.dev/home/test";
$posted_url = "home/test";*/
$regularExpression = "((https?|ftp)\:\/\/)?"; // SCHEME Check
$regularExpression .= "([a-z0-9+!*(),;?&=\$_.-]+(\:[a-z0-9+!*(),;?&=\$...
nvarchar和varchar相互转换、联合查询 - ORACLE - 清泛IT论坛，有思想、有深度
...后由 zqp2013 于 2015-2-27 16:42 编辑
场景：联合查询（union all）Oracle两张表，同一组字段的数据类型不一致，分别是nvarchar和varchar。
这时联合查询报错如下：ora12704：字符集不匹配。
解决方法：需要对数据类型进行转换。
Specif...
柳青：滴滴每天面临向死而生的挑战 永远热泪盈眶 - 资讯 - 清泛网 - 专注C/...
...战 永远热泪盈眶如今的出行市场三分天下：外有UBER虎视中国市场，内有背靠乐视生态的易到用车，滴滴也从3年前的嘀嘀打车到今日的滴滴出行，从一个打车服务领域的轻量级选手到今天覆盖打出租车、快车、专车、巴士、代驾...
Why is SQL Server 2008 Management Studio Intellisense not working?
... methods, then I hope I may be of assistance.
I have Applied SQL 2008 R2 Service Pack 1 which you can download here
http://www.microsoft.com/download/en/details.aspx?id=26727
32 Bit:
SQLServer2008R2SP1-KB2528583-x86-ENU.exe
64 Bit:
SQLServer2008R2SP1-KB2528583-x64-ENU.exe
I have applied this S...