Create the query by combining data from DBSS_Data_Model and HostModel

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  What do you mean by run the trigger?
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  Can be open as a TEST and do the following and try to compile your code of the trigger again.

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  See you soon,.
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• Failed to create the query.

  Hello
  I'm new to jpa. When I create the "g game SELECTION g WHERE g.player1_id =: use ' I get the following" unknown state or association field of error [player1_id] class [entity.» Game]. "
  
  Here is the generated netbean feature classes.
  
  
  package entity;
  
  import java.io.Serializable;
  to import java.util.Collection;
  import java.util.Date;
  Javax.persistence import. *;
  Import javax.validation.constraints.NotNull;
  Import javax.validation.constraints.Size;
  Import javax.xml.bind.annotation.XmlRootElement;
  Import javax.xml.bind.annotation.XmlTransient;
  
  /**
  *
  * @author ara Yeritsian
  */
  @Entity
  @Table (name = 'game')
  @XmlRootElement
  @NamedQueries({)
  @NamedQuery (name = "Game.findAll", query = "SELECT game g g"),
  @NamedQuery (name = "Game.findById", query = "SELECT game g g WHERE g.id =: id").
  @NamedQuery (name = "Game.findByState", query = "SELECT game g g WHERE g.state =: State").
  @NamedQuery (name = "Game.findByStartRulles", query = "SELECT game g g WHERE g.startRulles =: startRulles");
  @NamedQuery (name = "Game.findByStartDate", query = "SELECT game g g WHERE g.startDate =: startDate").
  ({@NamedQuery (name = "Game.findByClock", query = "SELECT game g g WHERE g.clock =: clock")})
  / public class game implements Serializable {}
  private static final long serialVersionUID = 1 L;
  @Id
  @GeneratedValue (strategy = GenerationType.IDENTITY)
  @Basic(optional = false)
  @NotNull
  @Column (name = "id")
  whole ID private;
  @Basic(optional = false)
  @NotNull
  @Size (min = 1, max = 16)
  @Column (name = "State")
  private state String;
  @Basic(optional = false)
  @NotNull
  @Column (name = "start_rulles")
  private short startRulles;
  @Column (name = "start_date")
  @Temporal (TemporalType.TIMESTAMP)
  private Date startDate;
  @Column (name = "clock")
  clock of integers private;
  @OneToMany (waterfall = CascadeType.ALL, mappedBy = "gameId")
  Private Collection < MoveHistory > moveHistoryCollection;
  @JoinColumn (name = "player2_id", referencedColumnName = "id")
  @ManyToOne
  player2Id private user;
  @JoinColumn (name = "player1_id", referencedColumnName = "id")
  @ManyToOne(optional = false)
  player1Id private user;
  
  public Game() {}
  }
  
  {public game (Integer id)
  This.ID = id;
  }
  
  {public game (id Integer, String State, short startRulles)
  This.ID = id;
  This.State = State;
  this.startRulles = startRulles;
  }
  
  public Integer getId() {}
  return the id;
  }
  
  {} public void setId (Integer id)
  This.ID = id;
  }
  
  public String getState() {}
  return status;
  }
  
  {} public void setState (State of the chain)
  This.State = State;
  }
  
  {public getStartRulles() short
  Return startRulles;
  }
  
  {} public void setStartRulles (abbreviated startRulles)
  this.startRulles = startRulles;
  }
  
  public Date getStartDate() {}
  return startDate;
  }
  
  {} public void setStartDate (Date startDate)
  this.startDate = startDate;
  }
  
  public Integer getClock() {}
  return the clock;
  }
  
  {} public void setClock (whole clock)
  This.Clock = clock;
  }
  
  @XmlTransient
  public Collection < MoveHistory > getMoveHistoryCollection() {}
  Return moveHistoryCollection;
  }
  
  {} public void setMoveHistoryCollection (Collection < MoveHistory > moveHistoryCollection)
  this.moveHistoryCollection = moveHistoryCollection;
  }
  
  public getPlayer2Id() {} user
  Return player2Id;
  }
  
  public void setPlayer2Id (User player2Id) {}
  This.player2Id = player2Id;
  }
  
  public getPlayer1Id() {} user
  Return player1Id;
  }
  
  public void setPlayer1Id (User player1Id) {}
  This.player1Id = player1Id;
  }
  
  @Override
  public int hashCode() {}
  int hash = 0;
  hash += (id! = null? id.hashCode (): 0);
  Returns the hash;
  }
  
  @Override
  public boolean equals (Object, object) {}
  TODO: WARNING - This method will not work in the case of identification fields are not defined
  If (!) object instanceof game))) {}
  Returns false;
  }
  Game another object = (game);
  If ((this.id == null & & other.id! = null) |) ((this.id! = null & &! this.id.equals (other.id))) {
  Returns false;
  }
  Returns true;
  }
  
  @Override
  public String toString() {}
  return "entity. Game [id ="+ id +" "] ';
  }
  
  }
  
  /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
  
  /*
  * To change this template, choose Tools | Templates
  * and open the template in the editor.
  */
  package entity;
  
  import java.io.Serializable;
  to import java.util.Collection;
  Javax.persistence import. *;
  Import javax.validation.constraints.NotNull;
  Import javax.validation.constraints.Size;
  Import javax.xml.bind.annotation.XmlRootElement;
  Import javax.xml.bind.annotation.XmlTransient;
  
  /**
  *
  * @author ara Yeritsian
  */
  @Entity
  @Table (name = "user")
  @XmlRootElement
  @NamedQueries({)
  @NamedQuery (name = "User.findAll", query = "SELECT u OF u user"),
  @NamedQuery (name = "User.findById", query = "SELECT u FROM user u WHERE u.id =: id").
  @NamedQuery (name = "User.findByEmail", query = "SELECT u OF u WHERE u.email = user: e-mail").
  @NamedQuery (name = "User.findByPassword", query = "SELECT u OF u WHERE u.password = user: password").
  @NamedQuery (name = "User.findByRating", query = "SELECT u OF u WHERE u.rating = user: side").
  @NamedQuery (name = "User.findByNickname", query = "SELECT u OF u WHERE u.nickname = user: username").
  ({@NamedQuery (name = "User.findBySecurityQuestionAnswer", query = "SELECT u OF u WHERE u.securityQuestionAnswer = user: securityQuestionAnswer")})
  User/public class implements Serializable {}
  private static final long serialVersionUID = 1 L;
  @Id
  @GeneratedValue (strategy = GenerationType.IDENTITY)
  @Basic(optional = false)
  @NotNull
  @Column (name = "id")
  whole ID private;
  @Pattern (regexp = "[a-z0-9! #$% &'* + / = ? ^ _'{|} ~-]+(?:\ \. (([a-z0-9! #$% &'* + / =? ^ _'{|} ~-] +) * @(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\\.) + [a-z0-9](?:[a-z0-9-]*[a-z0-9])? ", message =" invalid email address") //if the field contains E-mail address use this annotation to apply field validation"
  @Basic(optional = false)
  @NotNull
  @Size (min = 1, max = 45)
  @Column (name = "email")
  private String email;
  @Basic(optional = false)
  @NotNull
  @Size (min = 1, max = 45)
  @Column (name = "password")
  private String password;
  @Basic(optional = false)
  @NotNull
  @Column (name = "rating")
  private int rating;
  @Basic(optional = false)
  @NotNull
  @Size (min = 1, max = 45)
  @Column (name = "nickname")
  private; channel nickname
  @Basic(optional = false)
  @NotNull
  @Size (min = 1, max = 45)
  @Column (name = "security_question_answer")
  private String securityQuestionAnswer;
  @OneToMany (waterfall = CascadeType.ALL, mappedBy = "playerId")
  Private Collection < MoveHistory > moveHistoryCollection;
  @OneToMany (mappedBy = "player2Id")
  Private Collection < Game > gameCollection;
  @OneToMany (waterfall = CascadeType.ALL, mappedBy = "player1Id")
  Private Collection < Game > gameCollection1;
  @JoinColumn (name = "security_question_id", referencedColumnName = "id")
  @ManyToOne(optional = false)
  Private SecurityQuestion securityQuestionId;
  
  {public User()
  }
  
  public user (id Integer) {}
  This.ID = id;
  }
  
  public user (id Integer, String email, String password, int side, String username, String securityQuestionAnswer) {}
  This.ID = id;
  This.email = email;
  This.password = password;
  This.Rating = notes;
  This.Nickname = username;
  this.securityQuestionAnswer = securityQuestionAnswer;
  }
  
  public Integer getId() {}
  return the id;
  }
  
  {} public void setId (Integer id)
  This.ID = id;
  }
  
  public String getEmail() {}
  return of electronic mail;
  }
  
  {} public void setEmail (String email)
  This.email = email;
  }
  
  public String getPassword() {}
  return the password;
  }
  
  public void setPassword (String password) {}
  This.password = password;
  }
  
  public int getRating() {}
  return of qualification;
  }
  
  public void setRating (int side) {}
  This.Rating = notes;
  }
  
  public String getNickname() {}
  return the nickname;
  }
  
  {} public void setNickname (string name)
  This.Nickname = username;
  }
  
  public String getSecurityQuestionAnswer() {}
  Return securityQuestionAnswer;
  }
  
  {} public void setSecurityQuestionAnswer (String securityQuestionAnswer)
  this.securityQuestionAnswer = securityQuestionAnswer;
  }
  
  @XmlTransient
  public Collection < MoveHistory > getMoveHistoryCollection() {}
  Return moveHistoryCollection;
  }
  
  {} public void setMoveHistoryCollection (Collection < MoveHistory > moveHistoryCollection)
  this.moveHistoryCollection = moveHistoryCollection;
  }
  
  @XmlTransient
  public Collection < Game > getGameCollection() {}
  Return gameCollection;
  }
  
  {} public void setGameCollection (Collection < Game > gameCollection)
  this.gameCollection = gameCollection;
  }
  
  @XmlTransient
  public Collection < Game > getGameCollection1() {}
  Return gameCollection1;
  }
  
  public void setGameCollection1 (Collection < Game > gameCollection1) {}
  this.gameCollection1 = gameCollection1;
  }
  
  public SecurityQuestion getSecurityQuestionId() {}
  Return securityQuestionId;
  }
  
  {} public void setSecurityQuestionId (SecurityQuestion securityQuestionId)
  this.securityQuestionId = securityQuestionId;
  }
  
  @Override
  public int hashCode() {}
  int hash = 0;
  hash += (id! = null? id.hashCode (): 0);
  Returns the hash;
  }
  
  @Override
  public boolean equals (Object, object) {}
  TODO: WARNING - This method will not work in the case of identification fields are not defined
  If (!) object instanceof user))) {}
  Returns false;
  }
  The user = (user) another object;
  If ((this.id == null & & other.id! = null) |) ((this.id! = null & &! this.id.equals (other.id))) {
  Returns false;
  }
  Returns true;
  }
  
  @Override
  public String toString() {}
  return "entity. The user [id ="+ id +" "] ';
  }
  
  }
  
  Published by: 927714 on April 15, 2012 01:04

  JPQL use attributes and properties of entity in queries, not the SQL field names, you cannot use "player1_id" because it does not exist in the game entity. I don't know what you pass in the: the user parameter, but if it is a principal user Id, you should try using ' g.player1Id.id =: user. If you pass in the user entity, you can use "g.player1Id =: user" instead.

  Best regards
  Chris

• Failed to create the query? (Interesting Scenerio)

  Hi all, I am unable to create a query for results with the following data below. Any help will be appreciated?
  
  
  Expected results
  
  ID1 NAME1 NAME2 ID2
  1 test1 test2 2
  3 4 test4 test3
  5 of test5 test6 6
  
  
  
  Thanks in advance

  Select o.id id1, o.name name1, e.id id2, e.name name2
    from emp o, emp e
   where o.id+1=e.id(+)
      and mod(o.id,2)=1;
  

  ID odd on Column1 and following the same id on Column2.

  Max

• Help create the query

  Hi all
  
  I have the below requirement.

  Master table:
  Product ID      Product Name
  1               TV
  2               Cellphone
  3               Laptop
  4               DVD Player
  
  Details table:
  Product ID     Spec type     Spec Detail
  1               Color          Blue
  1               Weight          20
  2               Color          Blue
  2               Weight          20
  3               Color          Blue
  3                Weight          25
  4               Color          Blue
  4               Weight          20
  4               Height          10

  I'm looking for a way to identify products with the exact same specifications.
  
  That is to say, in the example TV and cell phone above has exact specifications.
  So the result of the query must be TV and phone cell phone here.
  
  Is it possible to do in a query, or we need a sql block to perform this action.
  
  Any help would be greatly appreciated.
  
  Thank you
  Agathya

  Hi agathya,

  We do not know how you want to handle the situation where more than two products have the same specifications, so I extended your sample data slightly to take account of this situation as well:

  SQL> create table products (id,name)
    2  as
    3  select 1, 'TV' from dual union all
    4  select 2, 'Cellphone' from dual union all
    5  select 3, 'Laptop' from dual union all
    6  select 4, 'DVD Player' from dual union all
    7  select 5, 'Radio' from dual union all
    8  select 6, 'VCR' from dual
    9  /
  
  Tabel is aangemaakt.
  
  SQL> create table product_specifications (product_id,spec_type,spec_detail)
    2  as
    3  select 1, 'Color' , 'Blue' from dual union all
    4  select 1, 'Weight', '20'   from dual union all
    5  select 2, 'Color' , 'Blue' from dual union all
    6  select 2, 'Weight', '20'   from dual union all
    7  select 3, 'Color' , 'Blue' from dual union all
    8  select 3, 'Weight', '25'   from dual union all
    9  select 4, 'Color' , 'Blue' from dual union all
   10  select 4, 'Weight', '20'   from dual union all
   11  select 4, 'Height', '10'   from dual union all
   12  select 5, 'Color' , 'Blue' from dual union all
   13  select 5, 'Weight', '20'   from dual union all
   14  select 6, 'Color' , 'Blue' from dual union all
   15  select 6, 'Weight', '20'   from dual union all
   16  select 6, 'Height', '10'   from dual
   17  /
  
  Tabel is aangemaakt.
  
  SQL> select p1.name
    2       , p2.name
    3    from products p1
    4       , products p2
    5       , product_specifications ps1
    6       , product_specifications ps2
    7   where p1.id = ps1.product_id
    8     and p2.id = ps2.product_id
    9     and p1.id < p2.id
   10   group by p1.id
   11       , p1.name
   12       , p2.id
   13       , p2.name
   14  having sqrt(count(*)) =
   15         count(case when ps1.spec_type = ps2.spec_type and ps1.spec_detail = ps2.spec_detail then 1 end)
   16  /
  
  NAME       NAME
  ---------- ----------
  TV         Cellphone
  TV         Radio
  Cellphone  Radio
  DVD Player VCR
  
  4 rijen zijn geselecteerd.
  

  But why devil you or your specifications product model predecessor like that? You are much more complicated that it should be. And the data type of size and weight should be not the same as those of color. But now they are. And how do limit you the allowed values for the colors? Color, weight and size are characteristic of your products so that they should have been modeled like this.

  See how easily your questions becomes after remodeling it:

  SQL> drop table product_specifications purge
    2  /
  
  Tabel is verwijderd.
  
  SQL> drop table products purge
    2  /
  
  Tabel is verwijderd.
  
  SQL> create table products (id,name,color,weight,height)
    2  as
    3  select 1, 'TV', 'Blue', 20, null from dual union all
    4  select 2, 'Cellphone', 'Blue', 20, null from dual union all
    5  select 3, 'Laptop', 'Blue', 25, null from dual union all
    6  select 4, 'DVD Player', 'Blue', 20, 10 from dual union all
    7  select 5, 'Radio', 'Blue', 20, null from dual union all
    8  select 6, 'VCR', 'Blue', 20, 10 from dual
    9  /
  
  Tabel is aangemaakt.
  
  SQL> select * from products
    2  /
  
          ID NAME       COLO     WEIGHT     HEIGHT
  ---------- ---------- ---- ---------- ----------
           1 TV         Blue         20
           2 Cellphone  Blue         20
           3 Laptop     Blue         25
           4 DVD Player Blue         20         10
           5 Radio      Blue         20
           6 VCR        Blue         20         10
  
  6 rijen zijn geselecteerd.
  
  SQL> select p1.name
    2       , p2.name
    3    from products p1
    4       , products p2
    5   where p1.id < p2.id
    6     and ( p1.color = p2.color or (p1.color is null and p2.color is null))
    7     and ( p1.weight = p2.weight or (p1.weight is null and p2.weight is null))
    8     and ( p1.height = p2.height or (p1.height is null and p2.height is null))
    9  /
  
  NAME       NAME
  ---------- ----------
  TV         Cellphone
  TV         Radio
  Cellphone  Radio
  DVD Player VCR
  
  4 rijen zijn geselecteerd.
  

  I hope this helps.

  Kind regards
  Rob.