Issue of inner joins

Hi all
I have a few tables with samples as:
CREATE OR REPLACE TABLE hotel
( 
     hotel_id             int  NOT NULL ,
     hotel_name           varchar2(50)  NULL ,
     hotel_address        varchar2(100)  NULL
);

CREATE OR REPLACE TABLE people_type
( 
     people_type_id       int  NOT NULL ,
     type_des             varchar2(30)  NOT NULL
);

CREATE OR REPLACE TABLE hotel_people
( 
     hotel_id                int  NOT NULL ,
     people_type_id      int  NOT NULL ,
     age_min                int  NULL ,
     age_max               int  NULL
);

CREATE OR REPLACE TABLE hotel_service
( 
     hotel_id              int  NOT NULL ,
     qty_room             int  NOT NULL ,
     qty_people           int  NOT NULL,
     qty_people_extra      int  NOT NULL
);

insert into hotel(hotel_id, hotel_name, hotel_address)
values(1,'hotel1','hotel1 address1');
insert into hotel(hotel_id, hotel_name, hotel_address)
values(2,'hotel2','hotel2 address2');
insert into hotel(hotel_id, hotel_name, hotel_address)
values(3,'hotel3','hotel3 address3');
insert into hotel(hotel_id, hotel_name, hotel_address)
values(4,'hotel4','hotel4 address4');

insert into people_type (people_type_id, type_des)
values (1,'Baby');
insert into people_type (people_type_id, type_des)
values (2,'Young');
insert into people_type (people_type_id, type_des)
values (3,'Adult');

insert into hotel_people (hotel_id, people_type_id, age_min, age_max)
values (1,1,0,2);
insert into hotel_people (hotel_id, people_type_id, age_min, age_max)
values (1,2,3,10);
insert into hotel_people (hotel_id, people_type_id, age_min, age_max)
values (1,3,11,200);

insert into hotel_people (hotel_id, people_type_id, age_min, age_max)
values (2,2,3,17);
insert into hotel_people (hotel_id, people_type_id, age_min, age_max)
values (2,3,18,200);

insert into hotel_people (hotel_id, people_type_id, age_min, age_max)
values (3,3,18,200);

insert into hotel_people (hotel_id, people_type_id, age_min, age_max)
values (4,1,0,2);
insert into hotel_people (hotel_id, people_type_id, age_min, age_max)
values (4,2,3,10);
insert into hotel_people (hotel_id, people_type_id, age_min, age_max)
values (4,3,11,200);

insert into hotel_service (hotel_id, qty_room, qty_people,qty_people_extra)
values (1,10,2,1);
insert into hotel_service (hotel_id, qty_room, qty_people,qty_people_extra)
values (1,5,4,0);
insert into hotel_service (hotel_id, qty_room, qty_people,qty_people_extra)
values (2,6,2,1);
insert into hotel_service (hotel_id, qty_room, qty_people,qty_people_extra)
values (2,12,3,1);
insert into hotel_service (hotel_id, qty_room, qty_people,qty_people_extra)
values (3,10,2,1);
insert into hotel_service (hotel_id, qty_room, qty_people,qty_people_extra)
values (3,5,4,0);
insert into hotel_service (hotel_id, qty_room, qty_people,qty_people_extra)
values (4,6,2,1);
insert into hotel_service (hotel_id, qty_room, qty_people,qty_people_extra)
values (4,12,3,1);
As you can see I have Hotels with basic information, persons of type hotel_people (1:baby, 2:young and 3:Adult), which contains the type of people that each hotel can accommodate with min max age and hotel_service that contains the info from the number of rooms and the amount of people that can be in each room.
I'm trying to get the records that match my condition as:
1. I want to get the hotels that can accommodate 4 pieces with adults of 3 for each room.
2 get hotels that can accommodate 6 rooms 2 where 2 of the bedrooms can have 1 young (3 people per room) and young people 9 years.

For 1:
select h.hotel_id, h.hotel_name, ss.qty_room, t.type_des, ss.qty_people, p.age_min, p.age_max
from hotel h
inner join hotel_service ss on h.hotel_id = ss.hotel_id
inner join hotel_people p on h.hotel_id = p.hotel_id
inner join people_type t on p.people_type_id = t.people_type_id
where ss.qty_room >= 4
and t.people_type_id = 3
and ss.qty_people >= 3
For 2:
select h.hotel_id, h.hotel_name, ss.qty_room, t.type_des, ss.qty_people, p.age_min, p.age_max
from hotel h
inner join hotel_service ss on h.hotel_id = ss.hotel_id
inner join hotel_people p on h.hotel_id = p.hotel_id
inner join people_type t on p.people_type_id = t.people_type_id
where ss.qty_room >= 6
and ss.qty_people >= 3
and t.people_type_id in (2,3)
and 9 between p.age_min and p.age_max
This does not work, the start of the query becomes more complex if I try to search for multiple rooms with a different number of people and children of different ages.
Can anyone help with this?
Thank you

Published by: user9542267 on April 3, 2012 22:26

Hello

user9542267 wrote:
... Yes, what I need is a hotel that can accommodate TWO adults and youth. What do you mean by two copies?

Right now I read something on the Grand Duke by Gilbert. I also have a book with the complete works of Gilbert, so I can leave it open, and when I see a reference in the commentary, I see exactly what the author is talking about in the book. However, when the comment compares some parts of this game to the other plays of Gilbert, The Yeomen of the Guard , it gets hard, because I have to keep changing the pages in the complete works, and I can't see both at the same time. It would be much easier if I could get a full second copy of the work; then I could leave a copy of the Grand Duke and leave the other copy open to The Yeomen of the Guard . This is similar to what you should do with the table of hotel_people, and what I do with the table scott.emp below.

Imagine (using tables in the scott schema) you have to find the departments where both an analyst and a clerk to work.
This:

SELECT DISTINCT
          d.*
FROM       scott.dept     d
JOIN       scott.emp     e  ON     d.deptno     = e.deptno
WHERE       job          IN ('ANALYST', 'CLERK')
ORDER BY  d.deptno
;

product

DEPTNO DNAME          LOC
------ -------------- -------------
    10 ACCOUNTING     NEW YORK
    20 RESEARCH       DALLAS
    30 SALES          CHICAGO

because all these departments have either an analyst or a clerk. However, only deptno = 20 a time .
If, instead of a single table of big job, you have a separate table for each Olympic Games, then you might do something like this:

SELECT DISTINCT
          d.*
FROM       scott.dept     d
JOIN       analyst     a  ON     d.deptno     = a.deptno
JOIN       clerk          c  ON     d.deptno     = c.deptno
ORDER BY  d.deptno
;

Of course, you don't have tables separated like that, but you could generate result sets who behaved as separte tables, for example:

WITH     analyst          AS
(
     SELECT  *
     FROM     scott.emp
     WHERE     job     = 'ANALYST'
)
,     clerk          AS
(
     SELECT  *
     FROM     scott.emp
     WHERE     job     = 'CLERK'
)
SELECT DISTINCT
          d.*
FROM       scott.dept     d
JOIN       analyst     a  ON     d.deptno     = a.deptno
JOIN       clerk          c  ON     d.deptno     = c.deptno
ORDER BY  d.deptno
;

Note that the main request is exactly what I posted earlier.
What produces the right output:

DEPTNO DNAME          LOC
------ -------------- -------------
    20 RESEARCH       DALLAS

There is no need to actually generate separate result sets, however. You can use two copies of the table scott.emp in the same query, as follows:

SELECT DISTINCT
          d.*
FROM       scott.dept     d
JOIN       scott.emp     a  ON     d.deptno     = a.deptno
JOIN       scott.emp     c  ON     d.deptno     = c.deptno
WHERE       a.job          = 'ANALYST'
AND       c.job          = 'CLERK'
ORDER BY  d.deptno
;

Tags: Database

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    inner join TT_DATU_EXP_OPER_CODE_INFO b on b.EXP_ID = a.EXP_ID AND b.OPER_CODE_TIME = a.LAST_ALARM_DATE
    inner join TT_DATU_EXP_OPER_CODE_TYPES c on b.OPER_CODE_TYPE = c.OPER_CODE_TYPE) LAST_OPER on EXP.. EXP_ID = LAST_OPER. EXP_ID
    inner join TT_DATU_LRN_MAP on exp. EXP_ID = NAB NAB. EXP_ID AND TRIM (NAB. LRN) AS p_LRN
    inner join TT_RTU_TYPES on exp. RTU_TYPE_ID = RTU RTU. RTU_TYPE_ID
    WHERE THERE IS NOT (SOME SATELLITE_EXP_ID OF TT_HOST_SATELLITE WHERE EXP. EXP_ID = SATELLITE_EXP_ID)
    AND EXP.IS_PRIMARY_ADDRESS LIKE p_isPrimary;
    ON THE OTHER
    OPEN FOR V_cursor
    SELECT EXP. EXP_ID,
    EXP. DATU_EXP_WIRE_CENTER_CLLI,
    EXP. DATU_EXP_IP,
    EXP. DATU_EXP_CLLI,
    EXP. DATU_EXP_PORT,
    EXP. DATU_EXP_NAME,
    EXP. DATU_EXP_CITY,
    EXP. DATU_EXP_STATE,
    EXP. DATU_EXP_SW_VERSION,
    DECODE (LAST_ALARM. LAST_ALARM_DATE, NULL, TO_CHAR (SYSDATE, ' YYYY/MM/DD HH24:MI:SS'), TO_CHAR (LAST_ALARM. LAST_ALARM_DATE, "YYYY/MM/DD HH24:MI:SS")) AS STATUS_DATE,
    DECODE (LAST_ALARM. ALARM_NAME, NULL, "disconnected", LAST_ALARM. ALARM_NAME) AS DATU_STATUS,
    DECODE (LAST_ALARM. ALARM_CLASS, NULL, 'OTHER', LAST_ALARM. ALARM_CLASS) AS IS_ERROR_STATUS,

    DECODE (LAST_RESOURCE. LAST_ALARM_DATE, NULL, ", TO_CHAR (LAST_RESOURCE. LAST_ALARM_DATE, "YYYY/MM/DD HH24:MI:SS")) AS RESOURCE_STATUS_DATE,
    DECODE (LAST_RESOURCE. RESOURCE_CODE_NAME, NULL, ", LAST_RESOURCE. RESOURCE_CODE_NAME) AS RESOURCE_STATUS,
    DECODE (LAST_RESOURCE. RESOURCE_CODE_CLASS, NULL, ", LAST_RESOURCE. RESOURCE_CODE_CLASS) AS IS_RESOURCE_ERROR_STATUS,
    DECODE (LAST_OPER. LAST_ALARM_DATE, NULL, ", TO_CHAR (LAST_OPER. LAST_ALARM_DATE, "YYYY/MM/DD HH24:MI:SS")) AS OPER_STATUS_DATE,
    DECODE (LAST_OPER. OPER_CODE_NAME, NULL, ", LAST_OPER. OPER_CODE_NAME) AS OPER_STATUS,
    DECODE (LAST_OPER. OPER_CODE_CLASS, NULL, ", LAST_OPER. OPER_CODE_CLASS) AS IS_OPER_ERROR_STATUS,

    EXP BEGIN_MAINT_WINDOW, RTU. RTU_NAME
    OF TT_DATU_EXP_UNIT_INFO EXP
    (in left outer join
    SELECT distinct alarmed_datus. EXP_ID, c.ALARM_NAME, c.ALARM_TYPE, c.ALARM_CLASS and alarmed_datus. LAST_ALARM_DATE
    Of alarmed_datus (SELECT EXP_ID, MAX (ALARM_TIME) AS LAST_ALARM_DATE FROM TT_DATU_EXP_ALARM_INFO GROUP BY EXP_ID)
    inner join TT_DATU_EXP_ALARM_INFO b on b.EXP_ID = alarmed_datus. EXP_ID AND b.ALARM_TIME = alarmed_datus. LAST_ALARM_DATE
    inner join TT_DATU_EXP_ALARM_TYPES c on b.ALARM_TYPE = c.ALARM_TYPE)
    LAST_ALARM on EXP.. EXP_ID = LAST_ALARM. EXP_ID
    left outer join
    (SELECT distinct a.EXP_ID, c.RESOURCE_CODE_NAME, c.RESOURCE_CODE_TYPE, c.RESOURCE_CODE_CLASS, a.LAST_ALARM_DATE
    FROM (SELECT EXP_ID, MAX (RESOURCE_CODE_TIME) AS LAST_ALARM_DATE
    OF TT_DATU_EXP_RESOURCE_CODE_INFO GROUP BY EXP_ID) a
    inner join TT_DATU_EXP_RESOURCE_CODE_INFO b on b.EXP_ID = a.EXP_ID AND b.RESOURCE_CODE_TIME = a.LAST_ALARM_DATE
    inner join TT_DATU_EXP_RESOURCECODE_TYPES c on b.RESOURCE_CODE_TYPE = c.RESOURCE_CODE_TYPE) LAST_RESOURCE on EXP.. EXP_ID = LAST_RESOURCE. EXP_ID
    left outer join
    (SELECT distinct a.EXP_ID, c.OPER_CODE_NAME, c.OPER_CODE_TYPE, c.OPER_CODE_CLASS, a.LAST_ALARM_DATE
    FROM (SELECT EXP_ID, MAX (OPER_CODE_TIME) AS LAST_ALARM_DATE
    OF TT_DATU_EXP_OPER_CODE_INFO GROUP BY EXP_ID) a
    inner join TT_DATU_EXP_OPER_CODE_INFO b on b.EXP_ID = a.EXP_ID AND b.OPER_CODE_TIME = a.LAST_ALARM_DATE
    inner join TT_DATU_EXP_OPER_CODE_TYPES c on b.OPER_CODE_TYPE = c.OPER_CODE_TYPE
    ) LAST_OPER on EXP.. EXP_ID = LAST_OPER. EXP_ID ORDER BY EXP. DATU_EXP_CLLI
    inner join TT_RTU_TYPES on exp. RTU_TYPE_ID = RTU RTU. RTU_TYPE_ID
    WHERE THERE is NOT (SOME SATELLITE_EXP_ID OF TT_HOST_SATELLITE WHERE EXP.. EXP_ID = SATELLITE_EXP_ID) AND EXP.IS_PRIMARY_ADDRESS love
    p_isPrimary;


    However this one:

    SELECT EXP. EXP_ID,
    EXP. DATU_EXP_WIRE_CENTER_CLLI,
    EXP. DATU_EXP_IP,
    EXP. DATU_EXP_CLLI,
    EXP. DATU_EXP_PORT,
    EXP. DATU_EXP_NAME,
    EXP. DATU_EXP_CITY,
    EXP. DATU_EXP_STATE,
    EXP. DATU_EXP_SW_VERSION,
    DECODE (LAST_ALARM. LAST_ALARM_DATE, NULL, TO_CHAR (SYSDATE, ' YYYY/MM/DD HH24:MI:SS'),
    TO_CHAR (LAST_ALARM. LAST_ALARM_DATE, "YYYY/MM/DD HH24:MI:SS")) AS STATUS_DATE,
    DECODE (LAST_ALARM. ALARM_NAME, NULL, "disconnected", LAST_ALARM. ALARM_NAME) AS DATU_STATUS,
    DECODE (LAST_ALARM. ALARM_CLASS, NULL, 'OTHER', LAST_ALARM. ALARM_CLASS) AS IS_ERROR_STATUS,


    DECODE (LAST_RESOURCE. LAST_ALARM_DATE, NULL, ", TO_CHAR (LAST_RESOURCE. LAST_ALARM_DATE, "YYYY/MM/DD HH24:MI:SS")) AS RESOURCE_STATUS_DATE,
    DECODE (LAST_RESOURCE. RESOURCE_CODE_NAME, NULL, ", LAST_RESOURCE. RESOURCE_CODE_NAME) AS RESOURCE_STATUS,
    DECODE (LAST_RESOURCE. RESOURCE_CODE_CLASS, NULL, ", LAST_RESOURCE. RESOURCE_CODE_CLASS) AS IS_RESOURCE_ERROR_STATUS,
    DECODE (LAST_OPER. LAST_ALARM_DATE, NULL, ", TO_CHAR (LAST_OPER. LAST_ALARM_DATE, "YYYY/MM/DD HH24:MI:SS")) AS OPER_STATUS_DATE,
    DECODE (LAST_OPER. OPER_CODE_NAME, NULL, ", LAST_OPER. OPER_CODE_NAME) AS OPER_STATUS,
    DECODE (LAST_OPER. OPER_CODE_CLASS, NULL, ", LAST_OPER. OPER_CODE_CLASS) AS IS_OPER_ERROR_STATUS,


    EXP BEGIN_MAINT_WINDOW, RTU. RTU_NAME
    OF TT_DATU_EXP_UNIT_INFO EXP
    left outer join
    (
    SELECT distinct alarmed_datus. EXP_ID, c.ALARM_NAME, c.ALARM_TYPE, c.ALARM_CLASS and alarmed_datus. LAST_ALARM_DATE
    Of alarmed_datus (SELECT EXP_ID, MAX (ALARM_TIME) AS LAST_ALARM_DATE FROM TT_DATU_EXP_ALARM_INFO GROUP BY EXP_ID)
    inner join TT_DATU_EXP_ALARM_INFO b on b.EXP_ID = alarmed_datus. EXP_ID AND b.ALARM_TIME = alarmed_datus. LAST_ALARM_DATE
    inner join TT_DATU_EXP_ALARM_TYPES c on b.ALARM_TYPE = c.ALARM_TYPE) LAST_ALARM on EXP.. EXP_ID = LAST_ALARM. EXP_ID

    left outer join
    (SELECT distinct a.EXP_ID, c.RESOURCE_CODE_NAME, c.RESOURCE_CODE_TYPE, c.RESOURCE_CODE_CLASS, a.LAST_ALARM_DATE
    FROM (SELECT EXP_ID, MAX (RESOURCE_CODE_TIME) AS LAST_ALARM_DATE
    OF TT_DATU_EXP_RESOURCE_CODE_INFO GROUP BY EXP_ID) a
    inner join TT_DATU_EXP_RESOURCE_CODE_INFO b on b.EXP_ID = a.EXP_ID AND b.RESOURCE_CODE_TIME = a.LAST_ALARM_DATE
    inner join TT_DATU_EXP_RESOURCECODE_TYPES c on b.RESOURCE_CODE_TYPE = c.RESOURCE_CODE_TYPE) LAST_RESOURCE on EXP.. EXP_ID = LAST_RESOURCE. EXP_ID
    left outer join
    (SELECT distinct a.EXP_ID, c.OPER_CODE_NAME, c.OPER_CODE_TYPE, c.OPER_CODE_CLASS, a.LAST_ALARM_DATE
    FROM (SELECT EXP_ID, MAX (OPER_CODE_TIME) AS LAST_ALARM_DATE
    OF TT_DATU_EXP_OPER_CODE_INFO GROUP BY EXP_ID) a
    inner join TT_DATU_EXP_OPER_CODE_INFO b on b.EXP_ID = a.EXP_ID AND b.OPER_CODE_TIME = a.LAST_ALARM_DATE
    inner join TT_DATU_EXP_OPER_CODE_TYPES c on b.OPER_CODE_TYPE = c.OPER_CODE_TYPE
    ) LAST_OPER on EXP.. EXP_ID = LAST_OPER. EXP_ID ORDER BY EXP. DATU_EXP_CLLI
    inner join TT_RTU_TYPES on exp. RTU_TYPE_ID = RTU RTU. RTU_TYPE_ID
    WHERE the EXP.IS_PRIMARY_ADDRESS as p_isPrimary;

    It does not work kept send me errors:
    [ORA-00933: SQL not correctly completed command]


    Any guru can help? I need to have this resolved effect today.
    Thanks in advance.

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