logo
down
shadow

How exactly work this simple JPQL query?


How exactly work this simple JPQL query?

By : Amit
Date : November 19 2020, 12:41 AM
around this issue In JPQL, we make use of classes and variable to generate query, instead of table name and column name. You will get detailed information about this from Google.
code :
select status from KM_ProjectInfoStatus status order by status.idProjectInfoStatus


Share : facebook icon twitter icon
How to Assign a JPQL query to a simple Java object?

How to Assign a JPQL query to a simple Java object?


By : Dhrubajyoti Das
Date : March 29 2020, 07:55 AM
like below fixes the issue I need to assign the result of a jpql result to a simple class java object , The question is extremely unclear. So here is a vague answer:
code :
EntityManagerFactory emf = Persistence.createEntityManagerFactory("MyPu");
EntityManager em = emf.createEntityManager();    
Query q = em.createQuery("select f.id, f.name from Foo f");
List<Object[]> foos = (List<Object([]>)q.getResultList();

MyObject o = new MyObject();
o.setFoos(foos);
Simple many-to-many select query in JPQL and embeddable key

Simple many-to-many select query in JPQL and embeddable key


By : BoggleMan
Date : March 29 2020, 07:55 AM
To fix this issue You appear to be mapping these as single standalone entities. If you map the relationships between entities then you should be able to do most of your queries by simply calling a get method (no jpql required)
code :
@Entity
@Table(name = "PERSON")
public class Person {

    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    @Column(name = "person_id")
    private Long id;

    @Column(name = "name", unique = true)
    private String name;

    @ManyToMany(mappedBy = "persons", cascade=CascadeType.ALL) 
    private Collection<Function> functions;

    // .. getters and setters

@Entity
@Table(name = "FUNC")
public class Function {

    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    @Column(name = "function_id")
    private Long id;

    @Column(name = "name")
    private String name;

    @ManyToMany(cascade=CascadeType.ALL)
    @JoinTable(name = "PERSON_FUNC",
    joinColumns = {@JoinColumn(name = "function_id", referencedColumnName = "id")}, 
    inverseJoinColumns = {@JoinColumn(name = "person_id", referencedColumnName = "id")}) 
    private Collection<Person> persons;

    // .. getters and setter
select distinct f from Function f inner join f.persons p where p.name = "Stefan"
Simple JPQL query not working in OpenJPA

Simple JPQL query not working in OpenJPA


By : Amimul Ehsan Emon
Date : March 29 2020, 07:55 AM
like below fixes the issue The following query that is working perfectly fine when I am using hibernate as the JPA provider is not working with OpenJPA: , I believe you want to change:"where symbol = :symbol" to :
code :
 "where ord.symbol = :symbol"
"where ord.symbol = ?1"

  .setParameter(1, symbol)
Spring-boot: JPA query (JPQL) do not work but works when change to native query

Spring-boot: JPA query (JPQL) do not work but works when change to native query


By : Austin
Date : March 29 2020, 07:55 AM
I hope this helps you . I finally find the answer. It is an unwritten convention that exist and when you use camel-case properties you had to use under lined fields in schema.sql file.
so with my entity file like this:
code :
@Entity
public class Stock {

    @Id
    private int stockId;

    private String companyName;

    private double price;

... with all setter and getters

}
drop TABLE  if EXISTS  stock;
CREATE TABLE stock(stock_id INT ,company_name VARCHAR(20),price DECIMAL (10,2)
);

INSERT INTO stock VALUES (1,'apple',345.01);
INSERT INTO stock VALUES (2,'google',8999.00);
INSERT INTO stock VALUES (3,'kashky',56.60);
JPQL query with CURRENT_DATE - 1 does not work

JPQL query with CURRENT_DATE - 1 does not work


By : daro
Date : March 29 2020, 07:55 AM
wish help you to fix your issue JPA define CURRENT_DATE / CURRENT_TIME / CURRENT_TIMESTAMP to be portable way to reference current date / time.
Also, some implementation (not all!) support function like year / month / day / hour / minute / second.
code :
@Query("SELECT e FROM CustMstr e WHERE e.crteDt between CURRENT_DATE-1 AND  CURRENT_DATE AND e.accActive ='Y'")
List<CustMstr> findByEmailAndAcc();
@Query("SELECT e FROM CustMstr e WHERE e.crteDt between :start and :end AND e.accActive ='Y'")
List<CustMstr> findByEmailAndAcc(Date start, Date end);
List<CustMstr> findByEmailAndAcc(){
    Date start=new Date();
    Date end=new Date(date.getTime()-(24*3600));
    return repository.findByEmailAndAcc(start, end);
}
Related Posts Related Posts :
  • Passing HttpServletResponse in Spring Boot controller method
  • Failed to load libraries: [netty_tcnative_linux_arm_32, netty_tcnative_linux_arm_32_fedora, netty_tcnative_arm_32, netty
  • How to build a small documents storage?
  • Getting pixel position of a text in an image
  • How do I get a list of Methods called from a Class in Eclipse IDE?
  • Convert string to day of week (not exact date)
  • Unable to understand how rounding is working for decimal digits (Java)
  • How to avoid java.lang.NoSuchMethodError: org.apache.poi.util.IOUtils.copy(Ljava/io/InputStream;Ljava/io/OutputStream;)
  • JTable Renderer not working with RowSorter?
  • From java.util.concurrent.Future<T> to play.libs.F.Promise<T>: How to do that in Java?
  • jUnit tests work in Eclipse, but fail in ant - java.lang.RuntimeException: Stub
  • How do i add a tooltip to existing gwt Textbox?
  • actor replying to non-actor
  • Google Cloud Messaging - server connection
  • Which classes are unmodifiable and cannot be intrumented and is there a way to bypass it?
  • Java & Jersey 1.17: Custom default response headers
  • Java rounding error
  • Setting custom RejectedExecutionHandler for ThreadPoolExecutor after executing some tasks?
  • Arquillian test class variables lose value
  • java.util.ConcurrentModificationException while inserting in ArrayList
  • How to write generic Java API without method Overloading
  • Java Serialization / Deserialization of an ArrayList works only on first program execution
  • Conway's Game of Life's rules dont apply properly
  • call a java method when Click on a html button without using javascript
  • Why does SSLSocketFactory.createSocket returns a Socket instead of SSLSocket?
  • How to schedule a task in Tomcat
  • compare two pdf files (approach) using java
  • What is the use of allowCoreThreadTimeout( ) in ThreadPoolExecutor?
  • Describe the Strategy Design Pattern in Java?
  • MongoDB too many open connections
  • Issue with generate JAXB classes with value constructors
  • Moving from one frame to another in java swing
  • Get a thread by Id
  • how to open front camera and back camera at same time?
  • Messed up with Java Declaration
  • Extracting chart in EXcel as image using java
  • How to get latitude and longitude in Android phone?
  • Do GC pauses and kill -STOP produce the same behavior?
  • Android HTML.ImageGetter Images resized
  • The way to instantiate map<String, List<String>> in Java
  • Java Making objects move while buttons held
  • Androidx Navigation View - `setNavigationItemSelectedListener` Doesn't Work
  • after compiling code JFrame does not appear
  • Netbeans project, JFrames ran from the main JFrame close all JFrames in project
  • Square Retrofit Client: How to enable/disable followRedirects? How to intercept redirect URL?
  • Java Circular Reference - Can’t Compile
  • Mouse click on specific time JAVA
  • android 4 onCreateDialog return type incompatible when overriding
  • Java Implementation of Oracle's DBMS_UTILITY.GET_HASH_VALUE Function
  • javac cannot be run, and furthermore does not seem installed
  • Function to obtain a thread given its ID
  • Java File path to Executable has spaces
  • Minimum Oracle Java VM heap memory setting?
  • Elegant way to create one of a large number of classes
  • Java fx binding styles
  • Summing weights based on string in large file
  • Android ListView setOnItemClickListener not working
  • How is the Java Bootstrap Classloader loaded?
  • Check object is blank
  • Add image between text in JEditorPane
  • shadow
    Privacy Policy - Terms - Contact Us © ourworld-yourmove.org