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.

Tags: Database

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    and a.effective_end_date > sysdate

    and (trunc (sysdate) BETWEEN women's wear. EFFECTIVE_START_DATE AND women's wear. EFFECTIVE_END_DATE)

    and a.effective_start_date = (select MAX (effective_start_date) from PER_ASSIGNMENTS_f where assignment_id = a.assignment_id)

    and a.assignment_id = 42643

    and a.assignment_status_type_id = '1')

    GROUP BY ssn, employee_number, employee_full_name, date_of_hire, effective_start_date, NOM_ELEMENT

    order by element_name;

  • 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

  • Please help improve the query with the analytic function

    The mentioned below query takes about 10 hours to complete (10.2.0.4).

    There are 3 tables (table t has a relationship 1: n with table e and k table also has a relationship 1: n with table e).
    Table a contains 200,000 lines. (this table is truncated and inserted several times a week)
    E table contains rows of 1Mio.
    K table contains rows of 170Mio.

    drop table t;
create table t
(
   t_id number,
   constraint t_pk primary key (t_id)
);

drop table e;
create table e
(
   e_id number,
   e_doc nvarchar2(16),
   e_date date,
   constraint e_pk primary key (e_id)
);

drop table k;
create table k (
   t_id number,
   e_id number
);

create unique index k_i1 on k(t_id, e_id);

exec dbms_stats.gather_table_stats(user, 'T');
exec dbms_stats.gather_table_stats(user, 'K');
exec dbms_stats.gather_table_stats(user, 'E');



-- Sample data:

insert into t(t_id) values (100);
insert into t(t_id) values (101);
insert into t(t_id) values (102);
insert into t(t_id) values (103);


insert into e(e_id, e_doc, e_date) values (200, 'doc 200', to_date('01.01.2010', 'DD.MM.YYYY'));
insert into e(e_id, e_doc, e_date) values (201, 'doc 201', to_date('02.01.2010', 'DD.MM.YYYY'));
insert into e(e_id, e_doc, e_date) values (202, 'doc 202', to_date('03.01.2010', 'DD.MM.YYYY'));
insert into e(e_id, e_doc, e_date) values (203, 'doc 203', to_date('04.01.2010', 'DD.MM.YYYY'));
insert into e(e_id, e_doc, e_date) values (204, 'doc 204', to_date('05.01.2010', 'DD.MM.YYYY'));
insert into e(e_id, e_doc, e_date) values (205, 'doc 205', to_date('06.01.2010', 'DD.MM.YYYY'));
insert into e(e_id, e_doc, e_date) values (206, 'doc 206', to_date('07.01.2010', 'DD.MM.YYYY'));
insert into e(e_id, e_doc, e_date) values (207, 'doc 207', to_date('08.01.2010', 'DD.MM.YYYY'));

insert into k(t_id, e_id) values (100, 200);
insert into k(t_id, e_id) values (100, 201);
insert into k(t_id, e_id) values (100, 202);
insert into k(t_id, e_id) values (100, 203);

insert into k(t_id, e_id) values (101, 203);
insert into k(t_id, e_id) values (101, 204);





select k.t_id, e.e_date,  e.e_id, e.e_doc
from   e, k, t
where  k.e_id = e.e_id
and    k.t_id = t.t_id
order by k.t_id, e.e_date desc;


      T_ID E_DATE         E_ID E_DOC
---------- -------- ---------- ----------------
       100 04.01.10        203 doc 203
       100 03.01.10        202 doc 202
       100 02.01.10        201 doc 201
       100 01.01.10        200 doc 200
       101 05.01.10        204 doc 204
       101 04.01.10        203 doc 203
    I need a query that takes the latest 3 posts for a given t_id:
          T_ID E_DOC_LIST
---------- -----------------------
       100 doc 200/doc 201/doc 202
       101 doc 203/doc 204


Sample query:

select t_id, e_doc_list
   from (
   select  k.t_id,
        row_number() over(partition by k.t_id order by k.t_id, e.e_date desc) r_num, 
        rtrim(       lag(e.e_doc, 0) over(partition by k.t_id order by k.t_id, e.e_date) || 
              '/' || lag(e.e_doc, 1) over(partition by k.t_id order by k.t_id, e.e_date) || 
              '/' || lag(e.e_doc, 2) over(partition by k.t_id order by k.t_id, e.e_date), 
              '/') e_doc_list
     from  e,
           k,
           t
     where  k.e_id = e.e_id
     and    k.t_id = t.t_id
     order by k.t_id, e.e_date desc
) where  r_num = 1   ;


      T_ID E_DOC_LIST
---------- --------------------------------------------------
       100 doc 203/doc 202/doc 201
       101 doc 204/doc 203
    The example query takes several hours in production.
    The r_num = 1 filter is applied quite late. Is there another way to generate the query or even review the tables.
    For the sample query:

-----------------------------------------------------------------------------------------
| Id  | Operation                        | Name | Rows  | Bytes | Cost (%CPU)| Time     |
-----------------------------------------------------------------------------------------
|   0 | SELECT STATEMENT                 |      |     6 |   468 |     6  (50)| 00:00:01 |
|*  1 |  VIEW                            |      |     6 |   468 |     6  (50)| 00:00:01 |
|*  2 |   WINDOW SORT PUSHED RANK        |      |     6 |   216 |     6  (50)| 00:00:01 |
|   3 |    WINDOW SORT                   |      |     6 |   216 |     6  (50)| 00:00:01 |
|   4 |     NESTED LOOPS                 |      |     6 |   216 |     4  (25)| 00:00:01 |
|   5 |      MERGE JOIN                  |      |     6 |   198 |     4  (25)| 00:00:01 |
|   6 |       TABLE ACCESS BY INDEX ROWID| E    |     8 |   208 |     2   (0)| 00:00:01 |
|   7 |        INDEX FULL SCAN           | E_PK |     8 |       |     1   (0)| 00:00:01 |
|*  8 |       SORT JOIN                  |      |     6 |    42 |     2  (50)| 00:00:01 |
|   9 |        INDEX FULL SCAN           | K_I1 |     6 |    42 |     1   (0)| 00:00:01 |
|* 10 |      INDEX UNIQUE SCAN           | T_PK |     1 |     3 |     0   (0)| 00:00:01 |
-----------------------------------------------------------------------------------------

Predicate Information (identified by operation id):
---------------------------------------------------

   1 - filter("R_NUM"=1)
   2 - filter(ROW_NUMBER() OVER ( PARTITION BY "K"."T_ID" ORDER BY
              "K"."T_ID",INTERNAL_FUNCTION("E"."E_DATE") DESC )<=1)
   8 - access("K"."E_ID"="E"."E_ID")
       filter("K"."E_ID"="E"."E_ID")
  10 - access("K"."T_ID"="T"."T_ID")


and for query in production

---------------------------------------------------------------------------------------
| Id  | Operation                 | Name         | Rows  | Bytes |TempSpc| Cost (%CPU)|
---------------------------------------------------------------------------------------
|   0 | SELECT STATEMENT          |              |  3118K|   425M|       |   160K  (1)|
|   1 |  VIEW                     |              |  3118K|   425M|       |   160K  (1)|
|   2 |   SORT ORDER BY           |              |  3118K|   163M|   383M|   160K  (1)|
|   3 |    WINDOW SORT PUSHED RANK|              |  3118K|   163M|   383M|   160K  (1)|
|   4 |     WINDOW SORT           |              |  3118K|   163M|   383M|   160K  (1)|
|   5 |      HASH JOIN            |              |  3118K|   163M|    40M| 33991   (1)|
|   6 |       TABLE ACCESS FULL   | E            |  1053K|    28M|       |  4244   (1)|
|   7 |       NESTED LOOPS        |              |  3118K|    80M|       | 21918   (1)|
|   8 |        TABLE ACCESS FULL  | T            |   144K|  1829K|       |   282   (2)|
|   9 |        INDEX RANGE SCAN   | K_I1         |    22 |   308 |       |     1   (0)|
---------------------------------------------------------------------------------------

    TimWong765 wrote:
    ...
    Table a contains 200,000 lines. (* this table is truncated and inserted several times a week *)

    You could be in one of the rare cases where the index should be rebuild, take a look in the following thread:
    http://asktom.Oracle.com/pls/asktom/f?p=100:11:0:P11_QUESTION_ID:6601312252730 #69571308712887 (search for 'index of Sweeper')
    Make sure that you have checked if you are in this case before going for an expensive index rebuild.

    Nicolas.

  • Need help with the query string manipulation

    Hello

    With the help of 10.1.0.4.2

    Given a table called PREFIX_CODES that contains a column called PREFIX_CODE
    with the following data:

    PREFIX_CODE - VARCHAR2 (20)
    -------------------
    AAA
    BENAMER
    CARTER

    and another table called SUBSCRIBERS with a column called SUBSCRIBER_ID
    with the following data:

    SUBSCRIBER_ID - VARCHAR2 (30)
    ---------------------
    BBBB-123456
    AAA-444444
    DD-2222222
    EEEE-888888

    Is there a query that will pull all the SUBSCRIBER_ID that begin with
    each of the PREFIX_CODES? The following query is not valid, but it
    This will give you an idea of what I'm trying to do:

    SELECT SUBSCRIBER_ID
    SUBSCRIBERS
    WHERE AS SUBSCRIBER_ID (SELECT PREFIX_CODE |) » %'
    OF PREFIX_CODES)

    Using the data from above, I would like that the query to return:

    BBBB-123456
    AAA-444444

    Thanks for your help!

    Hello

    Welcome to the forum!

    You were on the right track. To find if a given subscriber corresponds to any prefix_code, you can do an EXISTS subquery:

    SELECT     subscriber_id
FROM     subsribers     s
WHERE     EXISTS ( SELECT  NULL
                  FROM      prefix_codes
           WHERE      s.subscriber_id     LIKE prefix_code || '%'
            )
;

    This will tell you if at least a prefix code. It won't tell you exactly how many, or what they were.
    Your message, I'm guessing that there may be more than one, and you can deduct the subscriber_id itself, then the above query should work for you.

  • Help create the report

    I put it in my table:

    SQ_NOCUST_IDYEAR1YEAR2
    101002835419962002

    SELECT 10 SQ_NO, 10028354 CUST_ID, 1996 BY AN1 AN2 2002

    FROM DUAL;

    On a line I need to generate the number of lines between an1 and an2 and I need to generate only even numbers in the column of the year2. The result should be like this:

    10 10028354 1996 1996

    10 10028354 1996 1998

    10 10028354 1996 2000

    10 10028354 1996 2002

    I tried a lot of things, but nothing has worked for me. I'd appreciate the support.

    Kind regards

    skas

    Hello

    skas wrote:

    My bad I find it hard to understand this function correctly at the moment.

    There is no function affected by the query you posted.

    May be I pressure to quickly generate this report this is why I am not able to focus on learning patiently rather more interested in the realization of the goal.

    When you're ready to learn how works the CONNECT BY clause, see

    http://www.adp-GmbH.ch/ora/SQL/connect_by.html and/or

    http://www.oradev.com/connect_by.jsp

    I used Oracle for years before I learned how to CONNECT BY works.  I'm glad that I finally took the time to learn; It is very useful.

    I added a line in addition in the request, but now I'm getting duplicates.  I tried to use the group by clause, but both options still holding separate, when I run the query against the current table that has rows of 50 K.

    If the table has more than 1 line, then you need a condition in addition to LEVEL<= x   ="" in="" the="" connect="" by="" clause;="" some="" condition(s)="" using="" the="" prior="">

    Depending on your version of Oracle, he gets the results you posted:

    SELECT sq_no

    cust_id

    , by an1

    by an1 + ((LEVEL - 1)

    * 2

    ) AS yearx

    A

    CONNECT BY LEVEL<= (="" (year2="" -="">

    / 2

    ) + 1

    AND sq_no = PRIOR sq_no

    AND PRIOR SYS_GUID () IS NOT NULL

    ORDER BY 2, 3, 4

    ;

    This assumes that a.sq_no is unique.

    Beware of any solution that requires SELECT DISTINCT.  Very often, it's just a very expensive way to deal with a problem rather than solve it.

  • Need help with the query to get the County

    Hello

    Oracle 10 g 2 10.2.0.3 - 64 bit

    I want back the number of accounts with two different types of funds (say A and B). Some accounts hold only one of the two funds, and some support both. I want to get the counts like this:

    • account held funds - has only
    • accounts holding funds-B only
    • accounts holding the Fund-A and B funds

    Here is what I started with but need assistance to meet the requirement above:

    select 
count(distinct acct.bkoff_acct_no ) accounts_holding_fund_A
from xe_account acct,
        xec_tal_investment_mandate iman,
        xec_tal_asset_allocation alloc,
        xe_benchmark bmark,
        xe_benchmark_usage bu,
        xe_object_description xod,
        xec_asset_class cls
where iman.mandate_status_cd='A'
and cls.asset_class_cd = alloc.asset_class_cd
and iman.mandate_id = alloc.mandate_id
and acct.account_id = iman.object_id
and iman.object_type_cd = 'ACCT'
and iman.mandate_id = xod.object_id
and xod.field_nm='XEC_TAL_INVESTMENT_MANDATE.COMMENT_TXT'
and xod.language_cd = 'E'
and acct.acct_status_cd = 'O'
and bu.object_type_cd(+) = 'TMAA'
and bu.object_id(+) = alloc.asset_allocation_id
and bmark.benchmark_id(+) = bu.benchmark_id
and alloc.resp_txt like '%fund-A%'

    And suppose that the Fund-B has resp_txt like ' % of Fund-B»

    Please suggest.

    Concerning

    Hello

    Here is another way, it is easier to adapt to different jobs and different numbers of jobs:

    WITH got_distinct_jobs AS

    (

    SELECT DISTINCT deptno, job

    FROM scott.emp

    WHERE job IN ("ANALYST", "CLERKS") - or what

    )

    got_job_list AS

    (

    SELECT LISTAGG (job, ",") THE Group (ORDER BY work) AS job_list

    OF got_distinct_jobs

    GROUP BY deptno

    )

    SELECT job_list

    COUNT (*) AS num_departments

    OF got_job_list

    GROUP BY job_list

    ;

    This shows all the combinations of the jobs listed in the WHERE clause of got_distinct_jobs.  You don't need to change anything else in the query.  There may be any number of jobs.

    Output:

    JOB_LIST NUM_DEPARTMENTS

    ------------------------------ ---------------

    CLERK                                        2

    ANALYST, CLERK 1

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