Insert select on the same table: possible without side effects?

I have a very large table T1 containing millions of records. I need to treat its lines and create a few new lines based on selection.

Table T1 contains events and one of them, with the code 100, is created by the further development of other events inside the table.

My code is as follows:

insert /*+append */ into T1 (code,...) values (100, c1,c2,...)
select c1,c2... from T1 where (code=20 or code=10) and <other conditions>...

as you can see I'm extract T1 lines to insert again in T1 with a different code and I use the direct path in order to get good performance.

My fear is: choose is made from the same table I risk data loss? In general it is a good practice? Or is it better to create another table?

Hello

No I don't think that there may be loss of data. But that may depend on the behavior of the application and your where clause.

I will explain how it is treated, so you can see if it's ok:

1. the table is locked because of the insert add, (as)

2 lines are read by select and make compatible from the State that was at the beginning of the query - 1.

3 rows are inserted at the end, after the high-water line

4 columns for new lines are sorted to be merged in the index

5. high watermark is adjusted - visible new lines and lock is released

Note that 2. and 3. occur at the same time: rows are inserted all read.

Note that anyone can choose in the table during the operation - they see the changes committed only - if the State 1.

all other DML are waiting for the lock being released, and will see new ranks and then

If you have things that prevent the direct-path insert, append the hint will be ignored. So, if you must rely on close to 1. then the best lock explicitly with table lock. But I don't think that you need.

Kind regards

Franck.

Tags: Database

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    ID create_date

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

    A21849B1020792 02/01/2015

    A12349 B1020792 01/01/2015

    A12345B1234567 01/03/2015      

    A43567B1234567 01/04/2015      


    Here's the query I used:

    substr (a.id, 7) select sc, max (a.create_date) cd1

    of table a, table b

    where a.id! = b.id

    and substr (a.id, 7) = substr (b.id, 7)

    and a.id like 'A %' and b.id like 'A %' / * (I used a % because I am interested only IDs that begin with A) * /.

    and a.id ('A12349B1020792', 'A21849B1020792','A12345B1234567 ','A43567B1234567')

    Group of substr (a.id, 7);

    Result:

    ---------

    sc                    cd1

    ---                    ------

    B1020792 02/01/2015

    B1234567 04/01/2015

    There is one thing that I'm not able to do with my request, that is, be able to get real IDs list and not list of substrings. If I added a.id column in the select clause and the group by clause, the query includes both by substr (a.id, 7) and a.id and as a result, the query returns four lines as below:

    substr (a.id, 7) select sc, max (a.create_date) cd1, a.id ID

    of table a, table b

    where a.id! = b.id

    and substr (a.id, 7) = substr (b.id, 7)

    and a.id like 'A %' and b.id like 'A %' / * (I used a % because I am interested only IDs that begin with A) * /.

    and a.id ('A12349B1020792', 'A21849B1020792','A12345B1234567 ','A43567B1234567')

    Group by substr (a.id, 7), a.id.

    Result:

    ---------

    sc                    cd1                      ID

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

    01/01/2015 A12349B1020792 B1020792

    B1020792 01/02/2015 A21849B1020792

    B1234567 01/03/2015 A12345B1234567

    B1234567 01/04/2015 A43567B1234567


    My goal is to retrieve a list of all the unique identifiers that have the later dates.


    ID:

    ---

    A21849B1020792

    A43567B1234567


    Thanks for your time in advance!

    Hello

    user11951344 wrote:

    I have a table with ID (14 digit string values) starting with "A". Ex: A21849B1020792. There may be a different ID with the same substring "B1020792" in the same table, example: A12349B1020792. If this is the case, the ID of the last creation date must be returned in the result. In other words, comparison is done on the same table. "In the example provided, say A12349B1020792 updated 1 January 2015 ' and A21849B1020792 a date February 1, 2015", as A21849B1020792 has the most recent date, the result should contain only the A21849B1020792.

    ID create_date

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

    A21849B1020792 02/01/2015

    A12349B1020792 01/01/2015

    A12345B1234567 03/01/2015

    A43567B1234567 01/04/2015

    Here's the query I used:

    substr (a.id, 7) select sc, max (a.create_date) cd1

    of table a, table b

    where a.id! = b.id

    and substr (a.id, 7) = substr (b.id, 7)

    and a.id like 'A %' and b.id like 'A %' / * (I used a % because I am interested only IDs that begin with A) * /.

    and a.id ('A21849B1020792', 'A12345B1234567', 'A12349B1020792', 'A43567B1234567')

    Group of substr (a.id, 7);

    Result:

    ---------

    sc                    cd1

    ---                    ------

    B1020792 02/01/2015

    B1234567 01/04/2015

    There is one thing that I am not able to do with my request, that is, the ability to retrieve the list of IDs real and not a list of substrings. If I added a.id column in the select clause and the group by clause, the query groups according to the two substr (a.id, 7) and a.id and as a result, the query returns four lines as below:

    substr (a.id, 7) select sc, max (a.create_date) cd1, a.id ID

    of table a, table b

    where a.id! = b.id

    and substr (a.id, 7) = substr (b.id, 7)

    and a.id like 'A %' and b.id like 'A %' / * (I used a % because I am interested only IDs that begin with A) * /.

    and a.id ('A21849B1020792', 'A12345B1234567', 'A12349B1020792', 'A43567B1234567')

    Group by substr (a.id, 7), a.id.

    Result:

    ---------

    sc                    cd1                      ID

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

    B1020792 01/01/2015 A12349B1020792

    B1020792 02/01/2015 A21849B1020792

    B1234567 03/01/2015 A12345B1234567

    B1234567 01/04/2015 A43567B1234567

    My goal is to retrieve a list of all the unique identifiers that have the later dates.

    ID:

    ---

    A21849B1020792

    A43567B1234567

    Thanks for your time in advance!

    If it makes sense to treat the first 6 characters of the ID separately from the rest of the id in this problem, maybe it makes sense to store those two parts of the id in two different columns.  Relational databases work best when each column of each row contains 1 single piece of data (at most).  It is so fundamental to the design of table that he called the first normal form.

    Given that the two parts are stored in column 1, so you can something like this Request Top - N:

    WITH got_r_num AS

    (

    SELECT r.id

    r.create_date AS cd1

    , RANK () OVER (PARTITION OF SUBSTR (r.id, 7))

    ORDER BY r.create_date DESC

    ) AS r_num

    FROM table_x g - g for data values

    JOIN table_x r - r for related values

    ON SUBSTR (r.id, 7) = SUBSTR (g.id, 7)

    WHERE g.id IN ('A12349B1020792'

    , "A21849B1020792".

    , "A12345B1234567".

    , "A43567B1234567".

    )

    - AND g.id LIKE 'A %' - if necessary.   The above condition ensures already g.id start with "A".

    AND r.id LIKE 'a % '.

    )

    SELECT id, create_date

    OF got_r_num

    WHERE r_num = 1

    ;

    If you would care to post CREATE TABLE and INSERT instructions for the sample data, and then I could test this.

  • Update of several rows of the same table using trigger

    Hello

    I have the following table

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

    CREATE TABLE ATT_PERMISSIONS
    (
    DATE OF PRMONTHYR,
    EMPIDNUMBER (10)DEFAULT VALUE 0,
    FROMDATETIMEDATE,
    TODMTFDATETIMEDATE,
    NUMBER OF PERMMINS (3),

    SSLINASTRETCH NUMBER (3).

    PERMATTINELIGIBLENUMBER (1)DEFAULT VALUE 0
    );

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

    I want to update the column PERMATTINELIGIBLE in the same table when each line is inserted.

    I created following trigger for that

    CREATE OR REPLACE TRIGGER SSL_AFTER_UPDATE AFTER UPDATE ON ATT_PERMISSIONS

    FOR EACH LINE

    BEGIN

    Update ATT_PERMISSIONS set PERMATTINELIGIBLE =

    (

    SELECT THE CHECK BOX

    WHEN PERMMINS < = 60

    or

    (

    PERMMINS < = SSLINASTRETCH

    AND

    COUNT (CASE WHEN PERMMINS = 0 THEN NULL OTHERWISE 1 END)

    COURSES (PARTITION BY empid, prmonthyr) < = 1

    )

    THEN 1

    0 OTHERWISE

    END

    FROM ATT_PERMISSIONS where prmonthyr =:new.prmonthyr, empid =:new.empid

    ) where prmonthyr =:new.prmonthyr, empid =:new.empid;

    END;

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

    That is to say.

    When a row is inserted the PERMATTINELIGIBLE of all records for this employee for the month is recalculated.

    There would be only two or three records for an employee for a month.

    PERMMINS is the number of minutes to use as short leave.

    If it is less than 60 is eligible for the bonus to attendance for this employee.

    If this isn't normally the date is not eligible for the attendance for this employee premium.

    but an exception is that if a short leaves of DISP employee allowed a month (IE. ( SSLINASTRETCH ) in a straight line, IE. one day, that day is eligible for the bonus of presence.

    That is to say. Why the number of short leaves in a month is taken. If it's one and done minutes use is lower to SSLINASTRETCH, then the day is eligible for the attendance bonus.

    But when I try to create the trigger I get error, PL/SQL: ORA-00907: missing a right parenthesis.

    Help, please

    I use oracle 10g

    I want to update the column PERMATTINELIGIBLE in the same table, when each row is inserted.

    No - you do NOT want to do in a trigger.

    You cannot query the same table that the trigger is activated on. -C' is a MUTANT and you will get an exception.

    When a row is inserted is recalculated to the PERMATTINELIGIBLE of all the records for that employee for that month.

    There would be only two or three records for an employee for a month.

    PERMMINS is the number of minutes to use as short leave.

    If it is less than 60 is eligible for the bonus to attendance for this employee.

    If is not normally the day is not eligible for the premium of attendance for this employee.

    but an exception is that if a short leaves of DISP employee allowed a month (IE. SSLINASTRETCH) in a straight line, IE. one day, that day is eligible for the bonus of presence.

    That is to say. Why the number of short leaves in a month is taken. If it's one and done minutes use is less than SSLINASTRETCH, then the day is eligible for the bonus of presence.

    But when I try to create the trigger I get error, PL/SQL: ORA-00907: missing a right parenthesis.

    You can not do in a trigger. Even if correct you this error of syntax, you will get the exception that I mentioned above.

    Oracle is a multi-user system. Other users can modify the same table that you use.

    So even if you could try to interview "all the records for this employee" some of them may be locked if other users access them. Also, an insert statement could try to insert two rows for an employee and the trigger could not have seen the other lines still.

    If you want to work with data SETS (all records for an employee), you must write the PL/SQL code that LOCKS all lines updated to prevent others to interfere.

    Then you make your operations but NOT in a trigger. Perform inserts and then use an UPDATE query to set this value.

    Then VALIDATE to unlock the lines.

  • Help with career within the same table and find the relevant rank.

    HI all the gurus

    Pls help me out here... I need to implement some which is dependent on SUPERIOR record following found regarding one earlier. Some examples of data.

    create table SOR_OFF (OFF_ID, OFFS_ID number, REPORT number, CON_DATE number date, STATE varchar2 (20));

    REM INSERTING into  SOR_OFF
SET DEFINE OFF;
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,CON_DATE,STATUS) values (987,349,30658,to_date('12-SEP-04','DD-MON-RR'),'Active');
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,CON_DATE,STATUS) values (988,349,30658,to_date('29-DEC-98','DD-MON-RR'),'Active');
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,CON_DATE,STATUS) values (990,349,30658,to_date('29-JUL-96','DD-MON-RR'),'Active');
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,CON_DATE,STATUS) values (991,350,30658,to_date('27-NOV-90','DD-MON-RR'),'Active');
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,CON_DATE,STATUS) values (992,352,30658,to_date('04-OCT-91','DD-MON-RR'),'Active');
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,CON_DATE,STATUS) values (993,353,30658,to_date('12-JUN-95','DD-MON-RR'),'Active');
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,CON_DATE,STATUS) values (994,353,30658,to_date('21-NOV-83','DD-MON-RR'),'Active');
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,CON_DATE,STATUS) values (995,355,30658,to_date('21-APR-94','DD-MON-RR'),'Active');
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,CON_DATE,STATUS) values (996,356,27250,to_date('23-SEP-94','DD-MON-RR'),'Active');
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,CON_DATE,STATUS) values (997,357,30658,to_date('15-MAY-95','DD-MON-RR'),'Active');
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,CON_DATE,STATUS) values (998,358,30658,to_date('13-JAN-93','DD-MON-RR'),'Active');
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,CON_DATE,STATUS) values (999,358,30658,to_date('13-MAR-93','DD-MON-RR'),'Active');
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,CON_DATE,STATUS) values (1000,359,30658,to_date('17-DEC-96','DD-MON-RR'),'Active');
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,CON_DATE,STATUS) values (1003,360,30658,to_date('22-JUN-92','DD-MON-RR'),'Active');
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,CON_DATE,STATUS) values (1004,361,30658,to_date('15-FEB-94','DD-MON-RR'),'Active');
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,CON_DATE,STATUS) values (1006,362,30658,to_date('26-JUL-94','DD-MON-RR'),'Active');
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,CON_DATE,STATUS) values (1007,364,30658,to_date('01-JUL-92','DD-MON-RR'),'Active');
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,CON_DATE,STATUS) values (1009,365,30658,to_date('20-MAY-99','DD-MON-RR'),'Active');
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,CON_DATE,STATUS) values (1010,365,30658,to_date('01-JUL-99','DD-MON-RR'),'Active');
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,CON_DATE,STATUS) values (1011,366,30658,to_date('18-JUN-84','DD-MON-RR'),'Deleted');
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,CON_DATE,STATUS) values (1012,366,30658,to_date('15-JUL-94','DD-MON-RR'),'Active');
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,CON_DATE,STATUS) values (1013,366,30658,to_date('15-JUL-94','DD-MON-RR'),'Active');
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,CON_DATE,STATUS) values (1014,367,30658,to_date('07-NOV-94','DD-MON-RR'),'Active');
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,CON_DATE,STATUS) values (1015,368,30658,to_date('29-MAY-90','DD-MON-RR'),'Active');
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,CON_DATE,STATUS) values (1016,369,30658,to_date('10-SEP-92','DD-MON-RR'),'Active');
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,CON_DATE,STATUS) values (1020,370,30658,to_date('07-JUL-92','DD-MON-RR'),'Active');
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,CON_DATE,STATUS) values (1026,372,30658,to_date('23-JUL-93','DD-MON-RR'),'Active');
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,CON_DATE,STATUS) values (1027,373,30658,to_date('30-OCT-96','DD-MON-RR'),'Active');
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,CON_DATE,STATUS) values (1030,375,30658,to_date('03-OCT-91','DD-MON-RR'),'Active');
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,CON_DATE,STATUS) values (1034,376,30658,to_date('20-APR-95','DD-MON-RR'),'Active');
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,CON_DATE,STATUS) values (1037,378,30658,to_date('07-APR-92','DD-MON-RR'),'Active');
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,CON_DATE,STATUS) values (1039,379,30658,to_date('26-JAN-94','DD-MON-RR'),'Active');
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,CON_DATE,STATUS) values (1040,380,30658,to_date('12-MAY-93','DD-MON-RR'),'Active');
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,CON_DATE,STATUS) values (1041,381,30658,to_date('08-JAN-93','DD-MON-RR'),'Active');
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,CON_DATE,STATUS) values (1042,382,13428,to_date('27-JAN-92','DD-MON-RR'),'Active');
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,CON_DATE,STATUS) values (1043,383,30658,to_date('19-APR-91','DD-MON-RR'),'Active');
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,CON_DATE,STATUS) values (1044,384,30658,to_date('17-DEC-54','DD-MON-RR'),'Active');
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,CON_DATE,STATUS) values (1045,385,27884,to_date('03-APR-90','DD-MON-RR'),'Active');
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,CON_DATE,STATUS) values (1046,386,28480,to_date('01-DEC-92','DD-MON-RR'),'Active');
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,CON_DATE,STATUS) values (1048,388,30658,to_date('18-AUG-92','DD-MON-RR'),'Active');
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,CON_DATE,STATUS) values (1050,389,3894,to_date('26-AUG-88','DD-MON-RR'),'Active');
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,CON_DATE,STATUS) values (1051,389,30658,to_date('09-APR-96','DD-MON-RR'),'Active');
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,CON_DATE,STATUS) values (1053,391,30658,to_date('30-NOV-90','DD-MON-RR'),'Active');
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,CON_DATE,STATUS) values (1054,392,30658,to_date('27-MAY-93','DD-MON-RR'),'Active');
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,CON_DATE,STATUS) values (1055,393,3894,to_date('05-JUN-91','DD-MON-RR'),'Active');
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,CON_DATE,STATUS) values (1056,394,30658,to_date('29-MAY-96','DD-MON-RR'),'Active');
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,CON_DATE,STATUS) values (1057,395,3894,to_date('15-JUL-94','DD-MON-RR'),'Active');
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,CON_DATE,STATUS) values (1058,396,30658,to_date('22-FEB-91','DD-MON-RR'),'Active');
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,CON_DATE,STATUS) values (1061,398,30658,to_date('14-MAR-90','DD-MON-RR'),'Active');
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,CON_DATE,STATUS) values (1062,398,30658,to_date('14-MAR-90','DD-MON-RR'),'Active');
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (52810,37334,27250,'ACTIVE',to_date('25-JUL-01','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (52811,37334,27250,'ACTIVE',to_date('23-NOV-08','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (21648,17315,27250,'Deleted',to_date('02-JAN-05','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (24740,17315,27250,'ACTIVE',to_date('05-JAN-05','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (8622,6410,27250,'Active',to_date('26-JUN-98','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (44079,6410,27250,'ACTIVE',to_date('27-OCT-08','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (54828,38266,13428,'ACTIVE',to_date('31-JUL-96','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (55278,38266,13428,'ACTIVE',to_date('10-SEP-98','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (55279,38266,13428,'ACTIVE',to_date('13-NOV-01','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (48172,34748,17442,'ACTIVE',to_date('03-SEP-02','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (48173,34748,17442,'ACTIVE',to_date('01-APR-05','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (45319,33194,9950,'ACTIVE',to_date('03-APR-98','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (45320,33194,9950,'ACTIVE',to_date('21-FEB-06','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (46803,34029,30862,'ACTIVE',to_date('05-MAY-06','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (46804,34029,30862,'ACTIVE',to_date('26-OCT-06','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (53886,34029,30658,'ACTIVE',to_date('18-NOV-09','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (13479,11608,14966,'Active',to_date('16-NOV-99','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (13480,11608,14966,'Active',to_date('01-JAN-01','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (60251,40687,27250,'ACTIVE',to_date('23-JAN-09','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (60252,40687,27250,'ACTIVE',to_date('14-JUL-09','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (17454,14278,604,'Active',to_date('10-AUG-99','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (17455,14278,1232,'Active',to_date('27-OCT-03','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (52438,37084,27250,'ACTIVE',to_date('23-JUL-03','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (52648,37084,27250,'ACTIVE',to_date('17-FEB-04','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (20653,16456,27250,'Deleted',to_date('02-JUN-04','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (31000,16456,0,'Deleted',null);
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (38241,16456,27250,'ACTIVE',to_date('28-APR-05','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (54130,37980,1232,'ACTIVE',to_date('08-MAR-00','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (56129,37980,1232,'ACTIVE',to_date('07-AUG-08','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (55025,38388,30622,'ACTIVE',to_date('06-DEC-98','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (55032,38388,30622,'ACTIVE',to_date('01-DEC-10','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (55517,38657,27884,'ACTIVE',to_date('04-FEB-10','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (55518,38657,27884,'ACTIVE',to_date('17-AUG-09','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (55519,38657,27884,'ACTIVE',to_date('21-JUL-09','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (44764,32871,12408,'ACTIVE',to_date('18-JUN-04','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (44765,32871,12408,'ACTIVE',to_date('16-JUN-04','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (44766,32871,12408,'ACTIVE',to_date('16-JUN-04','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (19076,15174,27250,'ACTIVE',to_date('02-NOV-02','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (50173,15174,1232,'ACTIVE',to_date('16-SEP-08','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (45046,33005,27250,'ACTIVE',to_date('03-SEP-92','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (45160,33005,27250,'ACTIVE',to_date('08-FEB-01','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (45161,33005,27250,'ACTIVE',to_date('06-NOV-06','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (44118,32387,27250,'ACTIVE',to_date('22-MAR-96','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (44119,32387,9950,'ACTIVE',to_date('30-DEC-04','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (44120,32387,9950,'ACTIVE',to_date('28-SEP-05','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (48418,34888,19586,'ACTIVE',to_date('02-MAR-90','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (48419,34888,28480,'ACTIVE',to_date('18-DEC-07','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (48420,34888,28480,'ACTIVE',to_date('24-AUG-04','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (43307,31893,29598,'ACTIVE',to_date('26-APR-04','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (43437,31893,9950,'ACTIVE',to_date('20-SEP-07','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (53612,37738,13428,'ACTIVE',to_date('28-JUN-04','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (53613,37738,15208,'ACTIVE',to_date('15-DEC-08','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (21555,17241,13428,'ACTIVE',to_date('11-JUN-99','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (21556,17241,13428,'ACTIVE',to_date('02-JAN-02','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (41336,30685,14966,'ACTIVE',to_date('07-OCT-03','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (42363,30685,9950,'ACTIVE',to_date('20-NOV-06','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (50926,36355,30862,'ACTIVE',to_date('13-DEC-07','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (50928,36355,30862,'ACTIVE',to_date('13-SEP-07','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (25520,20471,27250,'ACTIVE',to_date('06-JUN-98','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (25521,20471,0,'ACTIVE',to_date('31-AUG-04','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (2035,1069,30658,'Active',to_date('29-JAN-92','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (36762,1069,9950,'ACTIVE',to_date('16-MAY-05','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (36763,1069,9950,'ACTIVE',to_date('17-AUG-05','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (29807,23548,18458,'ACTIVE',to_date('18-AUG-00','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (29826,23548,17868,'ACTIVE',to_date('13-AUG-02','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (12818,10852,1232,'Active',to_date('01-JUN-98','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (12988,10852,1232,'Active',to_date('01-JUL-00','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (44287,32502,27884,'ACTIVE',to_date('10-JAN-08','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (44917,32502,9950,'ACTIVE',to_date('09-JUL-08','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (14430,12464,15070,'Active',to_date('03-APR-02','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (14431,12464,30658,'Active',to_date('08-NOV-89','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (42691,12464,30622,'ACTIVE',to_date('18-JAN-06','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (21608,17278,14966,'ACTIVE',to_date('03-AUG-00','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (25145,17278,14966,'ACTIVE',to_date('01-NOV-00','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (54918,38323,17868,'ACTIVE',to_date('21-MAR-02','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (55607,38323,17868,'ACTIVE',to_date('22-APR-10','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (28304,22497,1232,'ACTIVE',to_date('29-NOV-01','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (40755,22497,1232,'ACTIVE',to_date('13-DEC-06','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (13239,11318,19002,'Deleted',to_date('01-APR-99','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (13240,11318,19002,'Active',to_date('01-JAN-00','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (54317,38064,14966,'ACTIVE',to_date('01-DEC-99','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (54318,38064,30862,'ACTIVE',to_date('14-OCT-05','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (60404,38064,30658,'ACTIVE',to_date('31-AUG-11','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (60405,38064,30658,'ACTIVE',to_date('31-AUG-11','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (52800,37327,27250,'ACTIVE',to_date('27-JUN-02','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (52801,37327,27250,'ACTIVE',to_date('27-JUN-02','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (52802,37327,27250,'ACTIVE',to_date('19-DEC-99','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (41154,30599,27250,'ACTIVE',to_date('02-APR-02','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (46115,30599,27250,'ACTIVE',to_date('15-SEP-04','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (48532,34983,1232,'ACTIVE',to_date('16-SEP-05','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (48533,34983,1232,'ACTIVE',to_date('16-SEP-06','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (26868,21438,1232,'ACTIVE',to_date('13-JAN-05','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (26909,21438,1232,'ACTIVE',to_date('13-DEC-05','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (54646,38177,28480,'ACTIVE',to_date('02-DEC-99','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (54647,38177,28480,'Deleted',null);
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (54648,38177,28480,'ACTIVE',to_date('01-NOV-04','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (26924,21471,10672,'ACTIVE',to_date('16-JAN-97','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (27385,21471,10672,'ACTIVE',to_date('12-NOV-97','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (27404,21471,3894,'ACTIVE',to_date('02-MAR-01','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (40329,30063,28480,'ACTIVE',to_date('07-OCT-02','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (40407,30063,28480,'ACTIVE',to_date('27-OCT-05','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (27949,22235,27250,'ACTIVE',to_date('07-JUL-98','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (27950,22235,27250,'ACTIVE',to_date('07-JUL-03','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (32387,25414,19032,'ACTIVE',to_date('18-APR-00','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (46214,25414,19032,'ACTIVE',to_date('18-APR-06','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (32226,25340,30658,'ACTIVE',to_date('25-MAY-05','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (33363,25340,27884,'ACTIVE',to_date('11-SEP-99','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (33364,25340,27884,'ACTIVE',to_date('08-FEB-01','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (55789,38840,1830,'ACTIVE',to_date('22-MAR-98','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (55790,38840,1830,'ACTIVE',to_date('22-MAR-98','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (55792,38840,1830,'ACTIVE',to_date('20-MAR-06','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (1976,1026,30658,'Active',to_date('21-JUN-94','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (47881,1026,1232,'ACTIVE',to_date('25-SEP-09','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (47882,1026,1232,'ACTIVE',to_date('21-JUN-04','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (13820,11900,27250,'Active',to_date('15-MAY-98','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (35519,11900,27250,'ACTIVE',to_date('18-JAN-99','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (35520,11900,27250,'ACTIVE',to_date('14-AUG-00','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (35521,11900,30658,'ACTIVE',to_date('03-DEC-02','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (35524,11900,30658,'ACTIVE',to_date('21-MAR-06','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (35525,11900,27250,'ACTIVE',to_date('29-AUG-01','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (26168,20977,27250,'ACTIVE',to_date('24-OCT-05','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (27644,20977,27250,'Deleted',to_date('29-OCT-05','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (27764,20977,27250,'Deleted',to_date('28-OCT-05','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (50681,20977,27250,'ACTIVE',to_date('28-OCT-05','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (49856,35737,27250,'ACTIVE',to_date('03-DEC-97','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (49858,35737,27250,'ACTIVE',to_date('19-JUL-07','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (41260,30649,27250,'ACTIVE',to_date('01-JUL-98','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (41261,30649,27250,'ACTIVE',to_date('01-JUN-98','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (8290,6012,14966,'Active',to_date('16-OCT-98','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (8291,6012,14966,'Active',to_date('24-FEB-99','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (49978,35835,9950,'ACTIVE',to_date('10-SEP-01','DD-MON-RR'));
Insert into  SOR_OFF (OFF_ID,OFFS_ID,STATE,STATUS,CON_DATE) values (49979,35835,9950,'ACTIVE',to_date('31-MAY-06','DD-MON-RR'));

    What I want is less than

    -Search for a line more low which is CON_DATE > = to_date ('01-NOV-1998', ' MON-DD-YYYY "") AND STATE = 30658 and get the second row whose state = 30658 but having separate con_date

                               or CON_DATE = > = to_date (November 1, 1997 ',' MON-DD-YYYY "") AND STATE <>30658 & get the second row including State = 30658 but having separate con_date

    and lower (status) = 'active '.


    and get another line that extends beyond the found line, but having separate con_date (no operation of the same day.)

    I tried to do it with and then attach it again with the same table, but I don't get different results...

    Please advise.

    Hello

    n_shah18 wrote:

    NO Frank

    Thanks for trying.

    First find a line that corresponds

    ((CON_DATE > = to_date (1er novembre 1998 ', ' MON-DD-YYYY ") AND STATE = 30658))

    or (CON_DATE > = to_date (November 1, 1997 ',' MON-DD-YYYY "") AND STATE <> 30658))


    8 second get/check the following line immediately for offs_id even that has different con_date, that is superior to prev con_date but State should be 3065


    If offs_id found then return else throw line...


       


    Thus, in addition to the conditions that I listed previously, there must be a line with the same offs_id, which has a con_date later and the State concerned; is this fair?

    You can use a self-join to see if there is such an extra line:

    WITH params AS

    (

    SELECT TO_DATE (November 1, 1998 ', 'DD-Mon-YYYY') AS later_threshold_date

    AS target_state 30658

    11900 AS target_offs_id

    OF the double

    )

    SELECT s.offs_id

    OF s sor_off

    JOIN params p ON s.offs_id = p.target_offs_id

    AND ((s.con_date > = p.later_threshold_date))

    AND s.state = p.target_state

    )

    OR (s.con_date > = ADD_MONTHS (p.later_threshold_date, 12))

    AND s.state <> p.target_state

    )

    )

    JOIN sor_off ON s2.offs_id = s.offs_id s2

    AND s2.con_date > s.con_date

    AND s2.state = p.target_state

    GROUP BY s.offs_id

    ;

    The only difference between this and the previous solution is the last join, in other words, the 3 lines of code just before the GROUP BY clause.

  • First occurrence but not in the same table

    As we know, to search for the first occurrence of a particular record, we go with the MIN function. It is however, if all of your records are in the same table.

    My scenario is a little different. I have 4 tables (maybe more), but keeping this is simple for the exercise. I need to find the first occurrence of a student who appear in a table and this registration Date. The trick is to NOT include this student in the following tables. To do this, I can use SQL or PL/SQL.

    Thanks in advance.

    Scripts for Tables (CREATE TABLE and INSERT scripts)

    create table time_period(id varchar2(1), start_date date, end_date date);
insert into time_period values('0', to_date('01-DEC-2005', 'DD-MON-YYYY'), to_date('31-MAY-2006','DD-MON-YYYY'));
insert into time_period values('1', to_date('01-JUN-2006', 'DD-MON-YYYY'), to_date('30-NOV-2006','DD-MON-YYYY'));
insert into time_period values('2', to_date('01-DEC-2006', 'DD-MON-YYYY'), to_date('31-MAY-2007','DD-MON-YYYY'));
insert into time_period values('3', to_date('01-JUN-2007', 'DD-MON-YYYY'), to_date('30-NOV-2007','DD-MON-YYYY'));
insert into time_period values('4', to_date('01-DEC-2007', 'DD-MON-YYYY'), to_date('31-MAY-2008','DD-MON-YYYY'));

create table student_test1(student_id varchar2(4), exam_date date);
create table student_test2(student_id varchar2(4), exam_date date);
create table student_test3(student_id varchar2(4), exam_date date);
create table student_test4(student_id varchar2(4), exam_date date);

insert into student_test1 values('1001',to_date('01-DEC-2005','DD-MON-YYYY');
insert into student_test1 values('1002',to_date('01-DEC-2005','DD-MON-YYYY');
insert into student_test2 values('1003',to_date('01-JUN-2006','DD-MON-YYYY');
insert into student_test3 values('1001',to_date('01-NOV-2007','DD-MON-YYYY');
insert into student_test3 values('1004',to_date('01-NOV-2007','DD-MON-YYYY');
insert into student_test4 values('1001',to_date('01-MAY-2008','DD-MON-YYYY');
insert into student_test4 values('1002',to_date('01-MAY-2008','DD-MON-YYYY');
insert into student_test4 values('1003',to_date('01-MAY-2008','DD-MON-YYYY');
insert into student_test4 values('1004',to_date('01-MAY-2008','DD-MON-YYYY');

    Desired output should be as follows:

    ID Start Date End Date County

    0 1 December 05 31 May 06 2 - student ID 1001 and 1002

    1 1 June 06 30 November 06 1 - Student ID 1003

    2 1 December 06 31 May 07 0 - no

    3 1st June 07 1st November 07 1 - Student ID 1004 (1001 should not be taken to the top)

    4 1st December 07 to 31 May 08 0 - no. They have all been included in the previous periods

    could be done with a UNION ALL operation student_test-tables (and a join with the time table):

    with

    BaseData as)

    Select * from student_test1

    Union of all the

    Select * from student_test2

    Union of all the

    Select * from student_test3

    Union of all the

    Select * from student_test4

    )

    ,

    min_values like)

    Select student_id, min (exam_date) exam_date

    of basedata

    Student_id group

    )

    Select tp.id

    tp.start_date

    tp.end_date

    count (mv.student_id) student_id

    of time_period tp

    left outer join

    min_values mv

    on (mv.exam_date between tp.start_date and tp.end_date)

    Tp.id group

    tp.start_date

    tp.end_date

    order of tp.id

    ;

    I HAVE START_DA STUDENT_ID END_DATE

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

    01.12.05 0 31.05.06 2

    1 01.06.06 30.11.06 1

    2 01.12.06 31.05.07 0

    3 01.06.07 30.11.07 1

    4 01.12.07 31.05.08 0

    Concerning

    Martin

  • parents and children of the same table records

    I want to create a query that is a union such that 2nd resultset is based on the game of results 1. I have a table that has parent and child records in the same table.

    Table: EVENTS
    EVENT_ID
    PARENT_EVENT_ID
    CREATED_DATE
    (other columns)

    If PARENT_EVENT_ID is null, then this is a parent record, otherwise it is a book of the child. I want to select all parent records then union them with all the related child records... something like this:

    Select * from EVENTS where CREATED_DATE < sysdate - 90 and PARENT_EVENT_ID is null - all parents
    Union
    Select * event where PARENT_EVENT_ID in (select EVENT_ID of EVENTS where CREATED_DATE < sysdate - 90 and PARENT_EVENT_ID is null)-include all children selected from the top parent

    It works but it of kind of ugly, I want to avoid using the subselect in the 2nd because it is a repeat of the 1st statement, is there a way to alias the first statement and only refer to him in the 2nd query?

    Hello

    CONNECTION is very similar to a UNION on the same table. How is this:

    SELECT     *
FROM     events
WHERE     created_date     < SYSDATE - 90
START WITH     parent_event_id     IS NULL
CONNECT BY     parent_event_id     = PRIOR event_id
     AND     LEVEL          <= 2    -- Maybe
;

    ?

    To answer your question: Yes, you can still keep the result set of a query and the Treaty as if it were a table or vew, like this:

    WITH     roots     AS
(
     SELECT     *
     FROM     events
     WHERE     created_date     < SYSDATE - 90
     AND     parent_event_id     IS NULL
)
SELECT     *
FROM     roots
     --
UNION ALL
        --
SELECT     *
FROM     events
WHERE     created_date     < SYSDATE - 90
AND     parent_event_id     IN (
                      SELECT  event_id
                      FROM    roots
                  )
;

    It's always a bit ugly, however. I would use CONNECT BY or from Oracle 11.2, a recursive WITH clause (which is explicitly a UNION), or, in any version, a self-join, like this:

    SELECT     c.*
FROM          events  c
LEFT OUTER JOIN     events     p  ON   p.event_id  = c.parent_event_id
WHERE   p.parent_event_id  IS NULL
;

    I hope that answers your question.
    If not, post a small example of data (CREATE TABLE and only relevant columns, INSERT statements) for all of the tables involved and the results desired from these data.
    Report where the queriy above (the one you decide to use) is producingthe bad results and explain, using specific examples, how you get the right results from these data in these places.
    Always say what version of Oracle you are using (for example, 11.2.0.2.0).
    See the FAQ forum {message identifier: = 9360002}

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