WITH the ORDER BY clause and bug SDO_GEOMETRY?
I'm having a problem using SDO_GEOMETRY in a WITH clause. Specifically with ORDER BY. I'll show a shortened version of SQL here. I'm doing something wrong or is this a bug?It works:
SELECT
loc.location_id,
SDO_GEOM.SDO_DISTANCE(cent.lat_long,
MDSYS.SDO_GEOMETRY
(
2001, -- SDO_GTYPE attribute: 2 in 2001 specifies dimensionality is 2.
'4326',
SDO_POINT_TYPE(-78.6386145, 35.772096, NULL),
NULL,
NULL
),
0.01, -- tolerance
'unit=mile') result_center_distance
FROM location loc
JOIN centroid cent ON loc.centroid_id = cent.centroid_id
ORDER BY result_center_distanceWITH location_distance AS
(
SELECT
loc.location_id,
SDO_GEOM.SDO_DISTANCE(cent.lat_long,
MDSYS.SDO_GEOMETRY
(
2001, -- SDO_GTYPE attribute: 2 in 2001 specifies dimensionality is 2.
'4326',
SDO_POINT_TYPE(-78.6386145, 35.772096, NULL),
NULL,
NULL
),
0.01, -- tolerance
'unit=mile') result_center_distance
FROM location loc
JOIN centroid cent ON loc.centroid_id = cent.centroid_id
ORDER BY result_center_distance
) SELECT * from location_distanceWITH location_distance AS
(
SELECT
loc.location_id,
SDO_GEOM.SDO_DISTANCE(cent.lat_long,
MDSYS.SDO_GEOMETRY
(
2001, -- SDO_GTYPE attribute: 2 in 2001 specifies dimensionality is 2.
'4326',
SDO_POINT_TYPE(-78.6386145, 35.772096, NULL),
NULL,
NULL
),
0.01, -- tolerance
'unit=mile') result_center_distance
FROM location loc
JOIN centroid cent ON loc.centroid_id = cent.centroid_id
ORDER BY SDO_GEOM.SDO_DISTANCE(cent.lat_long,
MDSYS.SDO_GEOMETRY
(
2001, -- SDO_GTYPE attribute: 2 in 2001 specifies dimensionality is 2.
'4326',
SDO_POINT_TYPE(-78.6386145, 35.772096, NULL),
NULL,
NULL
),
0.01, -- tolerance
'unit=mile')
) SELECT * from location_distanceThis is a bug. But it is set to 11g R2. Note that this is not a space bug, but a bug in generic compilation.
Tags: Database
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I was always using analytical functions like Min Max without ORDER BY clause. But today I used with the ORDER BY clause. The results are very different. I would like to know the purpose of the ORDER BY clause in Min, Max and analogues of analytical functions.user10566312 wrote:
I was always using analytical functions like Min Max without ORDER BY clause. But today I used with the ORDER BY clause. The results are very different. I would like to know the purpose of the ORDER BY clause in Min, Max and analogues of analytical functions.It is a good point that many developers are not so aware. As far as I understand it the way it works.
Some analytical functions do not need an order by or windowing clause (SUM, COUNT, MIN, etc.). If there is no specified window, then the full score is the window.
As soon as you add a command also add you a windowing clause. This window has the default value of 'rank ofrowsbetween unbounded preceding and current_row. So as soon as you add an order by clause, you get a sliding window.Documentation: http://docs.oracle.com/cd/B19306_01/server.102/b14200/functions001.htm
windowing_clause
...
You cannot specify this clause unless you specified the order_by_clause. Window limits defined by the clause RANGE you can not specify only a single expression to the > order_by_clause. Please refer to 'Restrictions on the ORDER BY Clause'.example of
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Hi all
I have tried under request.
SELECT e.employee_id, e.department_id
E EMPLOYEES
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Implementation plan...
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SELECT e.employee_id, e.department_id
E EMPLOYEES
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But it could also be used to decide between choosing a full index scan (to honor an order by clause and without having to sort after the scan) in the course of a full table scan that requires an extra sort (in honor of the order by clause) operation.There are many articles talking about this:
http://www.oaktable.NET/category/tags/clustering-factor
http://Oracle-Randolf.blogspot.com/2010/01/clusteringfactor-what-if-analysis.html
http://mehrajdba.WordPress.com/2009/02/09/index-clustering-factor/
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Hi friends,
I am facing a strange problem
I have a cursor with an order by clause.
OPEN FOR Cursor_nomrpt
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p_orderby is the parameter that is passed. But the result is not sorted. But when I run the cursor to hardcode the value of parameter, that it works fine...
Need your help on thisHello
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If you know all the possible values for p_orderby, you can do something like this:
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By the way
TRIM (x)Returns the same results as
LTRIM ( RTRIM (x)) -
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I was expecting this:
Instead, I got this:
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MOUNT s_5 (NULL AS DOUBLE),
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"Registration - College". «Dimensions of the inscription '.» "' Exercise ' s_2,.
'All the colleges' s_3,.
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HI mbengue,.
Check the report you are running any column presentation sorted in the user interface (in which case the order by clause will creep into generated sqls Physics). Also, I think that its worth it to check the settings of the hierarchy you have configured and if the installation program for the calculation of the measured column (number of students in this case), has been done correctly.
Kind regards
Arko
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