SQL & PL/SQL :: Analytic Functions And Ranking / Ordering?
Jul 17, 2008
I need to return an ordered list of documents. The documents may belong to a set id (optional) and if so, are either a "master" or a "duplicate" type. For each set there can be only one master but many duplicates. My goal is to group all the sets together such that each master is proceeded by its duplicates.
Table description:
document_master_duplicates
(
documentid,
duplicate_setid,
is_master
)
This needs to join to another table briefcase_documents which contains our set of documents. The briefcase / document relationship is many-to-many.
Table description:
briefcase_documents
(
briefcaseid,
documentid
)
There's also a documents table containing the documentid and among other things a page_count. In the following example I want to sort the documents first by page count but preserving the master/dupe grouping. Any documents which don't belong to a set or are just a duplicate without a master i want at the end of my set but also ordered by page count.
Here's an example set that I would want to order by:
DocumentId Page_Count SetId Is_Master
2002 2 1 0
2003 20 2 0
2008 20 NULL NULL
2010 20 4 0
2012 1 4 1
2001 5 1 1
2004 16 3 1
2011 17 4 0
2014 10 5 0
2009 9 NULL NULL
As you can see I have a little bit of everything here. Docs 2001 and 2002 are the typical set of 1 master and its duplicate. Docs 2010, 2011, and 2012 is the same just a set of 3. Doc 2004 is a master but without any duplicates. Docs 2003 and 2014 are duplicates without a master (these docs have a master in the table but that doc isn't in the set i need to order by). Docs 2008 and 2009 do not belong to a set and as such do not have a master/dupe type.
The result i'm looking to achieve will be ordered as follows:
DocumentId Page_Count SetId Is_Master
2012 1 4 1
2011 17 4 0
2010 20 4 0
2001 5 1 1
2002 2 1 0
2004 16 3 1
2009 9 NULL NULL
2014 10 5 0
2003 20 2 0
2008 20 NULL NULL
As I said above I first want to get the groupings of master/dupes and order ascending on the masters page count. For each duplicate of a master I then want to order the duplicates by page count. After I finished ordering all the master/dupe groups I then want to move on to the rest of the documents which will contain documents that don't belong to a set along with documents which are duplicates but have no master in my set. However, documents which are masters but without duplicates should have been ordered along with the other master/dupes groupings.
With this all in mind I have just been completely overwhelmed as to where to even start. Am I using analytic functions? Hierarchical stuff?
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Jul 25, 2006
analytic functions regarding the ORDER BY part =)
SQL> ed
Wrote file afiedt.buf
1 select *
2 from (select deptno, ename, sal
3 ,dense_rank() over (partition by deptno order by sal desc) rank
4 from emp)
[code]...
why is that i just added ename on the ORDER BY part of the DENSE_RANK and then
SQL> ed
Wrote file afiedt.buf
1 select *
2 from (select deptno, ename, sal
3 ,dense_rank() over (partition by deptno order by sal desc, ename) ran
[code]...
ADAMS and WARD we're removed from the result, why is it? did it rank it as UNIQUE per sal and ename?
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Nov 12, 2011
How can I rewrite this without the analytic functions?
SELECT employee_ID, first_name, salary,
RANK() OVER(ORDER BY salary desc) toprank_desc,
RANK() OVER(ORDER BY salary ASC) toprank_asc
FROM employees
ORDER BY first_name
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Mar 18, 2010
DATA is like this;i want to insert to same set of rows again with increasing the MAIN_SEQ with 4,5,6.
DOCUMENT_ID MAIN_SEQ
VSISLG401 1
VSISLG401 2
VSISLG401 3
DATA is like this;i want to insert to same set of rows again with increasing the MAIN_SEQ with 4,5,6.
DOCUMENT_ID MAIN_SEQ
VSISLG401 1
VSISLG401 2
VSISLG401 3
INSERT INTO TEMP_TEST
[code]...
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Oct 21, 2010
I have a table (events) with this structure: customer_id, event_id, ... For each customer_id there can be several rows in the table. I need to run a query of the format: select customer_id, expensive_function(customer_id),... from events.
The expensive_function to be applied to customer_id in the query is really expensive (a Java class calculating a check sum) and the events table has billions of rows.
Rows in events table have same customer_id for a few rows, then continue with a different customer_id ang again coming back to the first, etc.
I was thinking that it should be a way to trigger calculation of expensive_function only when customer_id changes, in order to reduce the number of calls. Only my knowledge about SQL is not going that far and I cannot use PL/SQL or any other procedural language, need to stick to standard SQL (or Oracle version of it).
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Jan 26, 2011
I am building a reporting table using the count analytic function in order to count up several different attributes in one statement.What I find is that this method quickly eats up my TEMP space. This is 10gR2. I have attempted to use MANUAL workarea policy with as large ofsort_area_size as possible (2G) but that does not seem to have any effect on performance or TEMP usage. The RAW table is about 12G with 75 million rows. I am not that concerned about execution time, but rather TEMP usage.
--INSERT into <object>...
select distinct
file_sid,filename,control_numb,processing_date,file_class,
vendor_id,vendor_desc,
c_status_id,c_status_desc,
[code]...
I am not seeing any increase in onepass or multipass executions on the PGA during execution of this statement using...
SELECT CASE WHEN low_optimal_size < 1024*1024
THEN to_char(low_optimal_size/1024,'999999') ||
'kb <= PGA < ' ||
(high_optimal_size+1)/1024|| 'kb'
ELSE to_char(low_optimal_size/1024/1024,'999999') ||
[code]...
I'd like to get a better explaination of how analytics use the instance resources and TEMP space. For example if I add
a count with a different window (such as the last two columns commented in the above query) I blow out my temp space (70G).
Is the critcal factor the use of distinct? or multiple windows? or something else?
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Feb 24, 2012
I have a question regarding analytic functions. I've been working with some functions, but I can't achieve the one which gives me the pretend result. I know to resolve this without using a function, with a internal select, but I think the analytical function is faster and proper.
I've got the following data:
Brand Qt
A 150
B 200
C 50
D 100
I wanna be following output;
Brand Overall %
A 30
B 40
C 10
D 20
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Aug 18, 2013
What's the meaning of "partition by null" in analytic functions like
select emp_no, dept_nm, count(*) over(partition by null) cnt
from some_table
is it right there is no partition?
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Aug 25, 2011
How to re-write sql with NOT EXISTS using analytic functions?I have the following sql:
SELECT f1, f2
FROM t1 A2
WHERE NOT EXISTS (SELECT 1 FROM t1 A3 WHERE A3.f1=A2f1 AND A3.f2=A2.f2
AND A3.f3=A2.f3 AND A3.f4 = 0
)
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Sep 7, 2012
I'm trying to Rank Username based on the Total Sum of amount waived but I want to avoid Ranking the Overall Total at the bottom, plus I dont want them in Ranking order, I want the order to stay the same as it currently is.
SELECT DECODE(GROUPING(USERNAME),1,'TOTAL',0,UPPER(USERNAME)) as "USERNAME",
SUM(CASE WHEN TO_CHAR(DATE_PROCESSED,'MON') = 'JAN' THEN AMOUNT_WAIVED ELSE 0 END) AS JAN,
SUM(CASE WHEN TO_CHAR(DATE_PROCESSED,'MON') = 'FEB' THEN AMOUNT_WAIVED ELSE 0 END) AS FEB,
[code]....
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Aug 23, 2012
I have a table T with columns
Col1 Col2
1 A
2 B
3 C
4 D
[code]..
I want to do group ranking in desired col3 in such a way that it checks for different values across consecutive rows under col2 and assigns a number to each group. Just when two consecutive rows in col2 have same value then the group ends and the next group starts.
So my desired output is:
Col1 Col2 Col3
1 A 1
2 B 1
3 C 1
4 D 1
5 D 2
6 A 2
[code]...
Here you can see that the first four rows under col2 are unique i.e A,B,C,D so col3 assigns this as group number 1. It ends at row 4 becuase row 5 also has value D under column 2. So in other words, each group must have all unique values and there should not be any repetition. For example, see group 3 (under col3) in above desired output; it starts from row 9 and ends at row 11 because row 12 also has value 'C' and the value 'C' has already occurred in group 3 in row 9.
I want to achieve this SQL. I tried using Dense rank but couldn't go through. I want the shortest possible query to acheive this.
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Jul 25, 2013
I have a query find window that allows you to search on various attributes.Also i have a radio button within the query find that allows you to filter the results either as a single record or mulitiple records For example consider the data below.....
Header Table
Record_Id = 1, Record_No = 'Rec1'
Lines Table
Record_Id = 1, Line_desc = 'Line1'
Record_Id = 1, Line_desc = 'Line2'
Record_Id = 1, Line_desc = 'Line3'
I have a View that joins the 2 tables together so for Record_Id = 1 the view returns 3 rows
I would like to have a query find window that allows you to search using:
Record_No
Line_Desc
and has a radio button to allow you to either show the records as a single line or as all detail lines Therefore i would like the following selections:
1) Enter no search criteria but select Single radio option will return 1 record with default line description of Line1
2) Enter no search criteria but select Multiple radio option will return all 3 records
3) Enter Line_Desc = Line1 with Single radio option brings back one record with Line_Desc = Line1
4) Enter Line_Desc = Line2 with Single radio option brings back one record with Line_Desc = Line2
5) Enter Line_Desc = Line3 with Single radio option brings back one record with Line_Desc = Line3
6) Enter Line_Desc = Line1 with Multi radio option brings back one record with Line_Desc = Line1
7) Enter Line_Desc = Line2 with Multi radio option brings back one record with Line_Desc = Line2
7) Enter Line_Desc = Line3 with Multi radio option brings back one record with Line_Desc = Line3
I need the form to select from the view but then perform a rank after it has selected the relavant data. Then the radio button would use the ranking to select either one record or multi records.
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Jun 29, 2011
I have a table t
CREATE TABLE T
(ID NUMBER(4),
NAME VARCHAR2(40))
INSERT INTO T VALUES (1,'JAMES');
INSERT INTO T VALUES (1,'DOLLY');
INSERT INTO T VALUES (2,'MICHEAL');
INSERT INTO T VALUES (2,'FLASH');
INSERT INTO T VALUES (3,'JAMES');
INSERT INTO T VALUES (3,'MARY');
INSERT INTO T VALUES (4,'JAMES');
INSERT INTO T VALUES (4,'DOLLY');
INSERT INTO T VALUES (5,'JAMES');
INSERT INTO T VALUES (5,'DOLLY');
INSERT INTO T VALUES (6,'JAMES');
INSERT INTO T VALUES (6,'MARY');
SELECT * FROM T ORDER BY 1
ID NAME
1 JAMES
1 DOLLY
2 MICHEAL
2 FLASH
3 JAMES
3 MARY
4 JAMES
4 DOLLY
5 JAMES
5 DOLLY
6 JAMES
6 MARY
each 'ID' has two values always. I want to rank the data based on same pair 'name' in an 'ID'
for example, my desired output is:
ID NAME RANK
1 JAMES 1
1 DOLLY 1
2 MICHEAL 1
2 FLASH 1
3 JAMES 1
3 MARY 1
4 JAMES 2 ---> THAT IS RANK 2 BECAUSE THIS IS THE 2ND TIME JAMES AND DOLLY ARE IN THE SAME 'ID'
4 DOLLY 2 -----> SAME AS ABOVE
5 JAMES 3 ---> THAT IS RANK 2 BECAUSE THIS IS THE 3RD TIME JAMES AND DOLLY ARE IN THE SAME 'ID'
5 DOLLY 3 -----> SAME AS ABOVE
6 JAMES 2 ---> THAT IS RANK 2 BECAUSE THIS IS THE 2ND TIME JAMES AND MARY ARE IN THE SAME 'ID'
6 MARY 2 -----> SAME AS ABOVE
I want the output in exactly above format.
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Jul 4, 2012
Lets say I have a table like the following -
ID--------DATE_TIME-----------------VALUE
101----- 01/01/2012 14:00:00 ---12
101----- 11/01/2012 23:00:00 ---17
101----- 13/01/2012 10:00:00 ---22
101----- 19/03/2012 08:00:00 ---7
101----- 19/03/2012 19:00:00 ---7
101----- 19/03/2012 20:00:00 ---7
101----- 20/03/2012 02:00:00 ---3
101----- 20/03/2012 03:00:00 ---3
101----- 21/03/2012 13:00:00 ---14
101----- 21/03/2012 14:00:00 ---14
101----- 21/03/2012 21:00:00 ---13
101----- 21/03/2012 22:00:00 ---13
101----- 21/03/2012 23:00:00 ---13
101----- 22/03/2012 00:00:00 ---13
I'm looking for a script to partition the data into sections where the VALUE is the same over a constant period of time with no breaks. I'd like to give each partition a value to identify it by.
So the outcome of the script would be the following -
ID--------DATE_TIME-----------------VALUE-----IDENTIFIER
101----- 01/01/2012 14:00:00 ---12----------1
101----- 11/01/2012 23:00:00 ---17----------2
101----- 13/01/2012 10:00:00 ---22----------3
101----- 19/03/2012 08:00:00 ---7------------4
101----- 19/03/2012 19:00:00 ---7------------5
101----- 19/03/2012 20:00:00 ---7------------5
101----- 20/03/2012 02:00:00 ---3------------6
101----- 20/03/2012 03:00:00 ---3------------6
101----- 21/03/2012 13:00:00 ---14----------7
101----- 21/03/2012 14:00:00 ---14----------7
101----- 21/03/2012 21:00:00 ---13----------8
101----- 21/03/2012 22:00:00 ---13----------8
101----- 21/03/2012 23:00:00 ---13----------8
101----- 22/03/2012 00:00:00 ---13----------8
I was trying to do something with trunc(date_time) but that didnt work out right as the blocks of data can carry over several days as seen in the rows with IDENTIFIER = 8.
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Jan 13, 2012
Been cruising all sorts of ways to order by. My last ditch effort my be to use the WITH clause, but I don't want to go there just yet...
Using Oracle 10G against a database that uses a COTS CHAR datatype schema against an in-house varchar2 datatype schema (hence all the trims you will see in there so I can get proper joins)
Here is my query in question. Beware it's somewhat eye-bleeding!
select * from (
SELECT
int.part "Part",
int.lot_nbr "Lot",
int.stkrm "Stkrm",
int.location "Location",
[Code]...
Now obviously no one would be able to run this... But here is an example of how this is spitting out the ordered by date:
31-Mar-2011 12:00:00 AM
31-Mar-2011 12:00:00 AM
31-Mar-2011 12:00:00 AM
28-Sep-2011 12:00:00 AM
[Code]...
It's like it's ordering it by the day only...
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Aug 30, 2012
I have the following table :
CREATE TABLE A_TEST (A INTEGER, B INTEGER, C INTEGER, D INTEGER, FLAG CHAR(11));
INSERT INTO A_TEST (A,B,C,D) VALUES(1,2,3,4);
INSERT INTO A_TEST (A,B,C,D) VALUES(2,4,5,8);
INSERT INTO A_TEST (A,B,C,D) VALUES(1,2,3,4);
INSERT INTO A_TEST (A,B,C,D) VALUES(2,4,5,8);
INSERT INTO A_TEST (A,B,C,D) VALUES(7,2,3,4);
INSERT INTO A_TEST (A,B,C,D) VALUES(9,2,3,4);
[code]....
I would like to perform an update on the FLAG column by setting to "D" if it is a duplicate record.1,2,3,4);I would like to use the rank function.
Desired update:
A B C D FLAG
1 2 3 4
2 4 5 8
1 2 3 4 D
2 4 5 8 D
7 2 3 4
9 2 3 4
7 2 3 4 D
1 2 3 4 D
5 4 5 8
2 2 3 9
2 4 5 8
6 2 3 4
1 3 3 4
8 2 8 4
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May 26, 2009
I have an Oracle query that I have built based on user input... user enters a description (multiple words) and I search for existing descriptions like it. For instance I may have a record like "My name is matt". Right now the query looks like
select * from table where
(field1 like '%My%' or
field1 like '%name%' or
field1 like '%is%' or
field1 like '%matt%');
There may be tons of records that have at least ONE of these, but I want to order by relevance, so a description "my name is bob" (3 words in common) will appear before "his name is not mine" (just 2 words in common).I have seen the SCORE() and CONTAINS() functions but not sure about multiple search criteria.
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May 23, 2011
I am working on ORACLE 9I. I am ordering(ASC/DES) the data one column whose values are
SALES-1
SALES-14
SALES-15
SALES-2
SALES-3
SALES-11
SALES-12
SALES-13
SALES-4
SALES-5
When i do the ascending order dat looks like
SALES -1
SALES-11
SALES-12
SALES-13
SALES-14
SALES-15
SALES-2
SALES-3
SALES-4
SALES-5
but it should display as
SALES-1
SALES-2
SALES-3
SALES-4
SALES-5
SALES-11
SALES-12
SALES-13
SALES-14
SALES-15
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Apr 14, 2012
I have a table with numbers like this in a column
sr no. value
1 17
2 0
3 0
4 38
5 32
6 24
7 12
8 51
9 42
10 1
11 1
12 0
13 0
14 1
15 1
.
.
.
so on....
I want to find out consecutive non-increasing sequences of value (2nd column) order by sr. no (first column) in ascending order.
For example, in the 2nd column, 17 is followed by 0 and 0 and then 38 so it means 3 consecutive values (i.e starting from 17 are 0 and 0) are non-increasing and they are ranked by '1' in my desired in third column as shown below. similarly, the 2nd non-increasing sequence starts with 38,32,24 and 12 and this is ranked as '2' in the third column. same is the case with rank '3' for the third non increasing sequence. so bascially i want the third column with "ranks" starting and ending as per above logic. i tried using LEAD function but doesn't get what I want. I need the shortest possible query to get that third column since i have other columns in the original table in a multiple group by query.
my desired output is:
sr no. value Rank
1 17 1
2 0 1
3 0 1
4 38 2
5 32 2
6 24 2
7 12 2
8 51 3
9 42 3
10 1 3
11 1 3
12 0 3
13 0 3
14 1 4
15 1 4
.
.
.
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May 25, 2010
i create a form for ordering>>>that the person can enter his/her information and isbn book to make the order,but the order id i make it sequentially! well first of all i create a data-block and i insert only the oid in trigger when-new-item-instance..i had create the sequence:
declare
create sequence seq1
start with 90
increment by 10;
end;
and i make a view form such of fields that user can enter a details o what he/she want to order!!
1- is that enough?
2- it seems there is an error in creating the sequence?? wrong way to create the sequence!!
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Aug 2, 2013
I need to order the result set with different data types based on the input parameter.
select * from scott.emp sc order by decode('&input_parameter',1,sc.empno,2, sc.ename);
If the input_parameter is equals to 1 then,ordering should be based on EMPNO which is Number data type.
If the input_parameter is equals to 2 then,ordering should be based on ENAME which is Character Data type.
Above query was failed for input_parameter 2,as we know that decode should return same data type.
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Jun 20, 2012
I am having a matrix report, which has its column cells from table A and row cells from table B when I run the report the columns and rows are not ordered I wrote the order by statement in the report query but there was no defference.
I also wrot a subquery like
select column1, column2, (select column3 from table1 order by code)
from .... but it seems I can not order in a subquery
Is there any way to do that
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Jul 21, 2010
I have two Oracle instances that are setup identically.When I run a query on one of them, it takes around 3 seconds, on the other it takes around 200 seconds.
I have looked at the explain plans, and it has shown me what I think is the problem. On one instance, it does a join on two tables, then runs the other filter/access predicates. On the other instance it runs the filter/access predicated first, then does the expensice join. The one that does the join first is the one that takes around 200 seconds. How to tell Oracle to make this join after runnning the other predicates?
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Oct 23, 2012
I have oracle table has records like this clnt pno beg_dt end_dt load_ts
502852 02 01-NOV-93 31-OCT-94 01-AUG-12
502852 01 01-OCT-93 31-AUG-94 01-SEP-12
502866 01 01-JUN-90 31-DEC-90 01-AUG-12
256974 01 01-JAN-90 31-MAY-90 01-SEP-12
280441 01 01-JUN-96 31-MAY-97 01-AUG-12
[Code]....
I am writing an oracle query using analytic funtion to list that has max(load_ts)
But my query returns bad results and retrieve all the records for some reason.
select a.*
from
(
select
CLNT,
[Code]....
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Nov 4, 2011
Is it possible to make query with analytic function or somehow to represent output data for next example (sql: ???):
Table: Order
sql: select * from order
Sql output>
Item Barcode Qty
---- ------- ---
1 100100 2
2 100200 1
3 100300 3
Table: Order
sql: ???
Sql output>
Item Barcode Qty ElementarQty
---- ------- --- ---
1 100100 2 1
1 100100 2 1
2 100200 1 1
3 100300 3 1
3 100300 3 1
3 100300 3 1
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Mar 8, 2012
Do we have analytic function equivalent of following?
select object_type,owner from dba_objects group by object_type,owner ;
I am trying to get a unique srno for a combination of a 2 fields - here object_type and owner
OWNEROBJECT_TYPESRNO
SYSVIEW1
SYSTABLE2
SYSPROCEDURE3
SYSTEMVIEW4
SYSTEMTABLE5
SYSTEMFUNCTION6
SYSTEMPROCEDURE7
SCOTTTABLE8
SCOTTVIEW9
.......................
also how can I get the SRNO?
I can' use sequence in the group by function and if I get equivalent analytic for above group by even then I can't write row_number as the order by gives detail record
I don't want to wrap this select inside other select
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Sep 30, 2013
ihave query quite like this: with--
This query selects one
"representant" acct_id per group (about 300 rows total)acct_repres as( select distinct acct_id, origin_id, acct_parm_id from ( select a.* , source_id , dense_rank() over (partition by source_id origin_id order by acct_nbr nulls first, acct_id) as odr from account a join account_parm ap on (a.parm_id = ap.acct_parm_id) ) where odr = 1)select col1 , col2 , ( select accct_id from acct_repres ar where ar.acct_parm_id = t2.acct_parm_id) col3 , ( select count(1) from acct_repres) col4from some_table t1join other_table t2 on (....)
And here it comes.
The "acct_repres" subquery returns more than 300 rows when executed separately. But when used in CTE sometimes (depending on execution plan) it seems to have only one row - the value in the column col4 is "1",while value for col3 is NULL for most of the cases. It looks like the the dense_rank function and the condition "where odr =1" are evaluated at the very end.
When I use MATERIALIZE hint the result was the same. But when I put the result of account_repres into dedicated table and use that table instead of CTE the output is correct.
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Feb 23, 2012
How can I refer the result of inner query - max(t.col3) in the outer query. I tried the 'group by' but it is not performing well
select
t1.col5, t1.col6
from t1,
(select t.col1
t.col2
[code].......
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Nov 20, 2012
I am creating a "time aware" (DAY, WEEK, MONTH, QUARTER, and YEAR) dimension using Analytic Workspace Manager.
Let me give you some background. I'm coming from a traditional "Oracle Express" OLAP background where all our data is stored in cubes and these are defined, populated and operated on using OLAP DML, there is no SQL or traditional relational tables involved.
I now want to pull data from relational tables into some OLAP cubes and am using Analytic Workspace Manager to do this (maybe this is not the best way?)
Let me explain what I'm trying to achieve. In OLAP worksheet I can type the following DML commands:
DEFINE MY_DAY DIMENSION DAY
MAINTAIN MY_DAY ADD TODAY '01JAN2011'
What this will do is create a "day dimension" and will populate it with values for each and every day between 1st Jan 2011 and today. It will be fully "time aware" and thus you can use date functions such as DAYOF to limit the MY_DAY dimension to all the Fridays etc. Similarly if I define a "month dimension" there will be an automatic implicit relationship between these two dimensions, this relationship and time aware cleverness is built into Oracle.
However, a dimension defined using DML commands (and indeed all objects created using DML language) is not visible in Analytic Workspace Manager (as there is no metadata for them?) and for the life of me I cannot work out how to create such a dimension using AWM. If I create a "Time Dimension" then, as far as I can tell, this is not a proper time dimension but merely a text dimension and I, presume, I have to teach it time awareness.
I have no issues creating, and populating cubes from relational tables using Analytic Workspace Manager, the only issue I have is creating a "proper" time aware dimension.
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Apr 27, 2010
I have a requirement to calculate the maximum number of concurrent calls from the following data:
Create_date connect_date_time disconnect_date_time duration ...
12/01/10 13:20:26 1263253551 1263254153 602
...
I have attempted to use the analytic function to keep a running total of the count of active calls based on the connect and disconnect times given for each record row.
e.g.
SELECT
count(*) calls,
avg(duration)/60 average_duration_mins,
max(duration)/60 max_duration_mins,
sum(duration)/60 total_mins,
(SUM(DURATION)/60)*0.04 total_cost_4c_per_min
[code]....
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