Self Join and Aggregate Functions
Hi all,
I am trying a query in TOAD where I need to use an aggregate function MAX and a self join using a subquery. Its working fine when there is no aggregate function but when I tried to use the MAX function then its running for infi time. Is it because of the invalid joins? or because of the usage of the self join and aggregate func?
The query contains some other tables too....
Any one please help....
Thanks in advance,
G
Toad will bring back a limited set of rows and present them to you giving the impression that the work is done. Adding an aggregate function requires the entire resultset to be traversed.
Yes, post the 2 queries to verify what I am saying.
Similar Messages
-
Need complex query with joins and AGGREGATE functions.
Hello Everyone ;
Good Morning to all ;
I have 3 tables with 2 lakhs record. I need to check query performance.. How CBO rewrites my query in materialized view ?
I want to make complex join with AGGREGATE FUNCTION.
my table details
SQL> select from tab;*
TNAME TABTYPE CLUSTERID
DEPT TABLE
PAYROLL TABLE
EMP TABLE
SQL> desc emp
Name
EID
ENAME
EDOB
EGENDER
EQUAL
EGRADUATION
EDESIGNATION
ELEVEL
EDOMAIN_ID
EMOB_NO
SQL> desc dept
Name
EID
DNAME
DMANAGER
DCONTACT_NO
DPROJ_NAME
SQL> desc payroll
Name
EID
PF_NO
SAL_ACC_NO
SALARY
BONUS
I want to make complex query with joins and AGGREGATE functions.
Dept names are : IT , ITES , Accounts , Mgmt , Hr
GRADUATIONS are : Engineering , Arts , Accounts , business_applications
I want to select records who are working in IT and ITES and graduation should be "Engineering"
salary > 20000 and < = 22800 and bonus > 1000 and <= 1999 with count for males and females Separately ;
Please help me to make a such complex query with joins ..
Thanks in advance ..
Edited by: 969352 on May 25, 2013 11:34 AM969352 wrote:
why do you avoid providing requested & NEEDED details?I do NOT understand what do you expect ?
My Goal is :
1. When executing my own query i need to check expalin plan.please proceed to do so
http://docs.oracle.com/cd/E11882_01/server.112/e26088/statements_9010.htm#SQLRF01601
2. IF i enable query rewrite option .. i want to check explain plan ( how optimizer rewrites my query ) ? please proceed to do so
http://docs.oracle.com/cd/E11882_01/server.112/e16638/ex_plan.htm#PFGRF009
3. My only aim is QUERY PERFORMANCE with QUERY REWRITE clause in materialized view.It is an admirable goal.
Best Wishes on your quest for performance improvements. -
Any difference between distinct and aggregate function in sql query cost???
Hi,
I have executed many sql stmts patterns- such as:
a) using a single table
b) using two tables, using simple joins or outer joins
but i have not noticed any difference in sql stmts in cost and in execution plan....
Anyway, my colleague insists on that using aggregate function is less costly compared to
distinct....(something i have not confirmed, that's why i beleive that they are exactly the same...)
For the above reffered 1st sql pattern.. we could for example use
select distinct deptno
from emp
select count(*), deptno
from emp
group by deptno select distinct owner, object_type from all_objects
select count(*), owner, object_type from all_objects
group by owner, object_typeHave you found any difference between the two ever...????
Note: I use Ora DB 10g v2.
Thank you,
Simdistinct and aggregate function are for different uses and may give same result but if u r using aggregate function to get distinct records, it will be expensive...
ex
select distinct deptno from scott.dept;
Statistics
0 recursive calls
0 db block gets
2 consistent gets
0 physical reads
0 redo size
584 bytes sent via SQL*Net to client
488 bytes received via SQL*Net from client
2 SQL*Net roundtrips to/from client
0 sorts (memory)
0 sorts (disk)
4 rows processed
select deptno from scott.emp group by deptno;
Statistics
307 recursive calls
0 db block gets
60 consistent gets
6 physical reads
0 redo size
576 bytes sent via SQL*Net to client
488 bytes received via SQL*Net from client
2 SQL*Net roundtrips to/from client
6 sorts (memory)
0 sorts (disk)
3 rows processed
Nimish Garg
Software Developer
*(Oracle & ASP.NET)*
Indiamart Intermesh Limited, Noida
To Get Free Oracle & ASP.NET Code Snippets
Follow: http://nimishgarg.blogspot.com -
Analytic function and aggregate function
What are analytic function and aggregate function. What is difference between them?
hi,
Analytic Functions :----------
Analytic functions compute an aggregate value based on a group of rows. They differ from aggregate functions in that they return multiple rows for each group. The group of rows is called a window and is defined by the analytic_clause. For each row, a sliding window of rows is defined. The window determines the range of rows used to perform the calculations for the current row. Window sizes can be based on either a physical number of rows or a logical interval such as time.
Analytic functions are the last set of operations performed in a query except for the final ORDER BY clause. All joins and all WHERE, GROUP BY, and HAVING clauses are completed before the analytic functions are processed. Therefore, analytic functions can appear only in the select list or ORDER BY clause.
Analytic functions are commonly used to compute cumulative, moving, centered, and reporting aggregates.
Aggregate Functions :----------
Aggregate functions return a single result row based on groups of rows, rather than on single rows. Aggregate functions can appear in select lists and in ORDER BY and HAVING clauses. They are commonly used with the GROUP BY clause in a SELECT statement, where Oracle Database divides the rows of a queried table or view into groups. In a query containing a GROUP BY clause, the elements of the select list can be aggregate functions, GROUP BY expressions, constants, or expressions involving one of these. Oracle applies the aggregate functions to each group of rows and returns a single result row for each group.
If you omit the GROUP BY clause, then Oracle applies aggregate functions in the select list to all the rows in the queried table or view. You use aggregate functions in the HAVING clause to eliminate groups from the output based on the results of the aggregate functions, rather than on the values of the individual rows of the queried table or view.
let me know if you are feeling any problem in understanding.
thanks.
Edited by: varun4dba on Jan 27, 2011 3:32 PM -
Self Joining and Inline Query. A tricky report.
I am stuck with a very tricky situation.Please help.This is PROD issue.
I have written a SQL code which has 1 inline queries,and displays the right results
with the right report output
Dont get confused.Just go thru this.
select pie.id_inst_code,
ISNULL(PN.Active, 0) 'Active',
from position_master_input_event pie,
(select insx.id_inst_xref_type,insx.id_inst_xref,count(*) 'PrimaryListing'
from instrument ins, instrument_xref insx
where ins.id_inst = insx.id_inst
and insx.flg_active = 'Y'
and ins.flg_active = 'Y'
group by insx.id_inst_xref_type,insx.id_inst_xref
)PN
where id_entity = 'AGL'
and pie.id_inst_code *= PN.id_inst_xref
and pie.id_src_inst_code_type*= PN.id_inst_xref_type
group by pie.id_inst_code,PN.Active,
Table :Instrument_xref
id_inst id_inst_xref_type id_inst_xref flg_active
0372285 SE B0DV8Y9 Y
0372285 IS GB00B03MLX29 Y
Table :Instrument
id_inst id_inst_xref_type id_inst_xref flg_active flg_primary_listing
0372285 SE B0DV8Y9 Y N
OUTPUT:
id_inst_xref Active
B0DV8Y9 1
PERFECT.Works fine
2) Now comes the tricky part.:
0372285 also has GB00B03MLX29 which has flg_active to Y and which also maps to 0372285.
Am I right?
New reportOutput
id_inst_xref Active PRIMARY ISIN
B0DV8Y9 1 1
So,now I want a SELF JOIN this way built into the code:
(hardcoded values work)
(i)
select a.id_inst_xref
from instrument_xref a,
instrument_xref b
where b.id_inst_xref ='B0DV8Y9'
and b.id_inst = a.id_inst
and b.id_inst_xref_type in ('SE','IS')
and a.id_inst_xref = 'GB00B03MLX29'
(ii)
select count(*) 'PrimaryISIN'
from instrument ins,
instrument_xref insx
where ins.id_inst = insx.id_inst
and insx.flg_active = 'Y'
and ins.flg_primary_listing = 'Y'
and ins.flg_active = 'Y'
And now LINKING ALL :
select pie.id_inst_code,
ISNULL(PN.Active, 0) 'Active',
from position_master_input_event pie,
(select insx.id_inst_xref_type,insx.id_inst_xref,count(*) 'PrimaryListing'
from instrument ins, instrument_xref insx
where ins.id_inst = insx.id_inst
and insx.flg_active = 'Y'
and ins.flg_active = 'Y'
group by insx.id_inst_xref_type,insx.id_inst_xref
)PN,
(select count(*) 'PrimaryISIN'
from instrument ins,
instrument_xref insx
where ins.id_inst = insx.id_inst
and insx.flg_active = 'Y'
and ins.flg_primary_listing = 'Y'
and ins.flg_active = 'Y'
and insx.id_inst_xref = (
select DISTINCT a.id_inst_xref
from instrument_xref a,
instrument_xref b
where b.id_inst_xref = 'B0DV8Y9'
and b.id_inst = a.id_inst
and b.id_inst_xref_type in ('SE','IS')
and a.id_inst_xref = 'GB00B03MLX29'
where id_entity = 'AGL'
and pie.id_inst_code *= PN.id_inst_xref
and pie.id_src_inst_code_type*= PN.id_inst_xref_type
group by pie.id_inst_code,PN.Active,
THE Self join works fine as long as it is hardcoded.
But assume there can br multiple such situations as the above,and I dont want to
hardcode the values,how can I build the NEW REPORT by SELF JOINING.
Please can someome help.This is a tricky one.
Is there a better way to thisIsn't this the same question as:
Passing values dynamically Froman 'INLINE Query' to a 'SUB QUERY'
and
Another query regarding Inline Query and Self Join and pass Column Values -
Tuning question. Self join vs Analytical function
Hi all,
I am a bit confused about this query cost.
So I have this query. Now follow the original one (after rewritten by me):
SELECT /*+ parallel (d 8) parallel(h 8) parallel(c 8) */
DISTINCT
d.customer_node_id AS root_customer_node_id,
d.customer_node_id AS customer_node_id,
nvl(h.account_id,c.account_id) AS account_id,
nvl(h.account_name,c.account_name) AS account_name,
d.service_id AS service_id,
nvl((SELECT /*+ parallel(x 8) */ max(x.service_name) FROM delta_service_history x
WHERE x.service_id=d.service_id AND v_upperbound_upd_dt BETWEEN x.effective_start_date AND x.effective_end_date GROUP BY x.service_id),d.service_name) AS service_name
FROM
delta_service_history d,
delta_account c,
stg_hierarchy h
WHERE
d.customer_node_id=c.customer_node_id(+) AND
d.customer_node_id=h.customer_node_id(+)
......the new one (I decided to use analitycal function to calculate max(service_name) for each service_id instead of self join done for "delta_service_history" )
I thought that self join was very heavy....
Anyway, my two questions are:
1. why the second one is heavier than the first. I reduce the number of join.....
2. how can be rewritten the first one query? In particular way I don't like that self join..... :)
Select Distinct
root_customer_node_id,
customer_node_id,
account_id,
account_name,
service_id,
service_name
From
SELECT /*+ parallel (d 8) parallel(h 8) parallel(c 8) */
d.customer_node_id AS root_customer_node_id,
d.customer_node_id AS customer_node_id,
nvl(h.account_id,c.account_id) AS account_id,
nvl(h.account_name,c.account_name) AS account_name,
d.service_id AS service_id,
d.service_name,
row_number() over (partition by d.service_id order by d.service_name desc) r1
FROM
delta_service_history d,
delta_account c,
stg_hierarchy_new h
WHERE
d.customer_node_id=c.customer_node_id(+) AND
d.customer_node_id=h.customer_node_id(+) AND
v_upperbound_upd_dt BETWEEN d.effective_start_date AND d.effective_end_date
)a
Where a.r1 = 1
Thank you all.I Post query plan.
First one query (the original):
Plan
MERGE STATEMENT ALL_ROWSCost: 2.691.669 Bytes: 784.141.119.324 Cardinality: 1.754.230.692
27 MERGE STGADMIN.STG_HIERARCHY
26 PX COORDINATOR
25 PX SEND QC (RANDOM) PARALLEL_TO_SERIAL SYS.:TQ10005 :Q1005Cost: 2.691.669 Bytes: 475.396.517.532 Cardinality: 1.754.230.692
24 VIEW PARALLEL_COMBINED_WITH_PARENT STGADMIN. :Q1005
23 HASH JOIN RIGHT OUTER BUFFERED PARALLEL_COMBINED_WITH_PARENT :Q1005Cost: 2.691.669 Bytes: 475.396.517.532 Cardinality: 1.754.230.692
4 BUFFER SORT PARALLEL_COMBINED_WITH_CHILD :Q1005
3 PX RECEIVE PARALLEL_COMBINED_WITH_PARENT :Q1005Cost: 20,828 Bytes: 860.278.720 Cardinality: 15.362.120
2 PX SEND HASH PARALLEL_FROM_SERIAL SYS.:TQ10000 Cost: 20,828 Bytes: 860.278.720 Cardinality: 15.362.120
1 TABLE ACCESS FULL TABLE STGADMIN.STG_HIERARCHY Cost: 20,828 Bytes: 860.278.720 Cardinality: 15.362.120
22 PX RECEIVE PARALLEL_COMBINED_WITH_PARENT :Q1005Cost: 2.669.426 Bytes: 376.698.378.630 Cardinality: 1.752.085.482
21 PX SEND HASH PARALLEL_TO_PARALLEL SYS.:TQ10004 :Q1004Cost: 2.669.426 Bytes: 376.698.378.630 Cardinality: 1.752.085.482
20 VIEW PARALLEL_COMBINED_WITH_PARENT STGADMIN. :Q1004Cost: 2.669.426 Bytes: 376.698.378.630 Cardinality: 1.752.085.482
19 SORT UNIQUE PARALLEL_COMBINED_WITH_PARENT :Q1004Cost: 2.669.426 Bytes: 127.902.240.186 Cardinality: 1.752.085.482
18 HASH JOIN OUTER PARALLEL_COMBINED_WITH_PARENT :Q1004Cost: 35,386 Bytes: 127.902.240.186 Cardinality: 1.752.085.482
13 HASH JOIN OUTER PARALLEL_COMBINED_WITH_PARENT :Q1004Cost: 4,86 Bytes: 647.395.154 Cardinality: 13.212.146
8 PX RECEIVE PARALLEL_COMBINED_WITH_PARENT :Q1004Cost: 1,961 Bytes: 158.611.600 Cardinality: 6.344.464
7 PX SEND HASH PARALLEL_TO_PARALLEL SYS.:TQ10001 :Q1001Cost: 1,961 Bytes: 158.611.600 Cardinality: 6.344.464
6 PX BLOCK ITERATOR PARALLEL_COMBINED_WITH_CHILD :Q1001Cost: 1,961 Bytes: 158.611.600 Cardinality: 6.344.464
5 TABLE ACCESS FULL TABLE PARALLEL_COMBINED_WITH_PARENT STGADMIN.DELTA_SERVICE_HISTORY :Q1001Cost: 1,961 Bytes: 158.611.600 Cardinality: 6.344.464
12 PX RECEIVE PARALLEL_COMBINED_WITH_PARENT :Q1004Cost: 2,879 Bytes: 368.690.880 Cardinality: 15.362.120
11 PX SEND HASH PARALLEL_TO_PARALLEL SYS.:TQ10002 :Q1002Cost: 2,879 Bytes: 368.690.880 Cardinality: 15.362.120
10 PX BLOCK ITERATOR PARALLEL_COMBINED_WITH_CHILD :Q1002Cost: 2,879 Bytes: 368.690.880 Cardinality: 15.362.120
9 TABLE ACCESS FULL TABLE PARALLEL_COMBINED_WITH_PARENT STGADMIN.STG_HIERARCHY :Q1002Cost: 2,879 Bytes: 368.690.880 Cardinality: 15.362.120
17 PX RECEIVE PARALLEL_COMBINED_WITH_PARENT :Q1004Cost: 28,982 Bytes: 5.838.854.928 Cardinality: 243.285.622
16 PX SEND HASH PARALLEL_TO_PARALLEL SYS.:TQ10003 :Q1003Cost: 28,982 Bytes: 5.838.854.928 Cardinality: 243.285.622
15 PX BLOCK ITERATOR PARALLEL_COMBINED_WITH_CHILD :Q1003Cost: 28,982 Bytes: 5.838.854.928 Cardinality: 243.285.622
14 TABLE ACCESS FULL TABLE PARALLEL_COMBINED_WITH_PARENT STGADMIN.DELTA_ACCOUNT :Q1003Cost: 28,982 Bytes: 5.838.854.928 Cardinality: 243.285.622
...second query
Plan
MERGE STATEMENT ALL_ROWSCost: 3.521.711 Bytes: 291.687.979.305 Cardinality: 652.545.815
32 MERGE STGADMIN.STG_HIERARCHY
31 PX COORDINATOR
30 PX SEND QC (RANDOM) PARALLEL_TO_SERIAL SYS.:TQ10006 :Q1006Cost: 3.521.711 Bytes: 176.839.915.865 Cardinality: 652.545.815
29 VIEW PARALLEL_COMBINED_WITH_PARENT STGADMIN. :Q1006
28 HASH JOIN RIGHT OUTER BUFFERED PARALLEL_COMBINED_WITH_PARENT :Q1006Cost: 3.521.711 Bytes: 176.839.915.865 Cardinality: 652.545.815
4 BUFFER SORT PARALLEL_COMBINED_WITH_CHILD :Q1006
3 PX RECEIVE PARALLEL_COMBINED_WITH_PARENT :Q1006Cost: 20,828 Bytes: 860.278.720 Cardinality: 15.362.120
2 PX SEND HASH PARALLEL_FROM_SERIAL SYS.:TQ10000 Cost: 20,828 Bytes: 860.278.720 Cardinality: 15.362.120
1 TABLE ACCESS FULL TABLE STGADMIN.STG_HIERARCHY Cost: 20,828 Bytes: 860.278.720 Cardinality: 15.362.120
27 PX RECEIVE PARALLEL_COMBINED_WITH_PARENT :Q1006Cost: 3.500.345 Bytes: 140.125.783.665 Cardinality: 651.747.831
26 PX SEND HASH PARALLEL_TO_PARALLEL SYS.:TQ10005 :Q1005Cost: 3.500.345 Bytes: 140.125.783.665 Cardinality: 651.747.831
25 VIEW PARALLEL_COMBINED_WITH_PARENT STGADMIN. :Q1005Cost: 3.500.345 Bytes: 140.125.783.665 Cardinality: 651.747.831
24 SORT UNIQUE PARALLEL_COMBINED_WITH_PARENT :Q1005Cost: 3.500.345 Bytes: 121.225.096.566 Cardinality: 651.747.831
23 VIEW PARALLEL_COMBINED_WITH_PARENT STGADMIN. :Q1005Cost: 1.195.554 Bytes: 121.225.096.566 Cardinality: 651.747.831
22 WINDOW SORT PUSHED RANK PARALLEL_COMBINED_WITH_PARENT :Q1005Cost: 1.195.554 Bytes: 58.005.556.959 Cardinality: 651.747.831
21 PX RECEIVE PARALLEL_COMBINED_WITH_PARENT :Q1005Cost: 1.195.554 Bytes: 58.005.556.959 Cardinality: 651.747.831
20 PX SEND HASH PARALLEL_TO_PARALLEL SYS.:TQ10004 :Q1004Cost: 1.195.554 Bytes: 58.005.556.959 Cardinality: 651.747.831
19 WINDOW CHILD PUSHED RANK PARALLEL_COMBINED_WITH_PARENT :Q1004Cost: 1.195.554 Bytes: 58.005.556.959 Cardinality: 651.747.831
18 HASH JOIN OUTER PARALLEL_COMBINED_WITH_PARENT :Q1004Cost: 34,402 Bytes: 58.005.556.959 Cardinality: 651.747.831
13 HASH JOIN OUTER PARALLEL_COMBINED_WITH_PARENT :Q1004Cost: 4,859 Bytes: 319.455.955 Cardinality: 4.914.707
8 PX RECEIVE PARALLEL_COMBINED_WITH_PARENT :Q1004Cost: 1,963 Bytes: 152.576.580 Cardinality: 3.721.380
7 PX SEND HASH PARALLEL_TO_PARALLEL SYS.:TQ10001 :Q1001Cost: 1,963 Bytes: 152.576.580 Cardinality: 3.721.380
6 PX BLOCK ITERATOR PARALLEL_COMBINED_WITH_CHILD :Q1001Cost: 1,963 Bytes: 152.576.580 Cardinality: 3.721.380
5 TABLE ACCESS FULL TABLE PARALLEL_COMBINED_WITH_PARENT STGADMIN.DELTA_SERVICE_HISTORY :Q1001Cost: 1,963 Bytes: 152.576.580 Cardinality: 3.721.380
12 PX RECEIVE PARALLEL_COMBINED_WITH_PARENT :Q1004Cost: 2,879 Bytes: 368.690.880 Cardinality: 15.362.120
11 PX SEND HASH PARALLEL_TO_PARALLEL SYS.:TQ10002 :Q1002Cost: 2,879 Bytes: 368.690.880 Cardinality: 15.362.120
10 PX BLOCK ITERATOR PARALLEL_COMBINED_WITH_CHILD :Q1002Cost: 2,879 Bytes: 368.690.880 Cardinality: 15.362.120
9 TABLE ACCESS FULL TABLE PARALLEL_COMBINED_WITH_PARENT STGADMIN.STG_HIERARCHY :Q1002Cost: 2,879 Bytes: 368.690.880 Cardinality: 15.362.120
17 PX RECEIVE PARALLEL_COMBINED_WITH_PARENT :Q1004Cost: 28,982 Bytes: 5.838.854.928 Cardinality: 243.285.622
16 PX SEND HASH PARALLEL_TO_PARALLEL SYS.:TQ10003 :Q1003Cost: 28,982 Bytes: 5.838.854.928 Cardinality: 243.285.622
15 PX BLOCK ITERATOR PARALLEL_COMBINED_WITH_CHILD :Q1003Cost: 28,982 Bytes: 5.838.854.928 Cardinality: 243.285.622
14 TABLE ACCESS FULL TABLE PARALLEL_COMBINED_WITH_PARENT STGADMIN.DELTA_ACCOUNT :Q1003Cost: 28,982 Bytes: 5.838.854.928 Cardinality: 243.285.622 -
FetchXML and Aggregate Functions (multiple datasets if necessary)
In fetch xml,
How do I do conduct aggregate functions (most recent, sum, average) on retrieved columns, based on matches with another column.
let's say column a has a value of "Timothy."
How do I then find the total number of column b that also have a value of 'Timothy?'
But then the next value of column a is 'John.'
I would then want to display the total number of column b that have a value of 'John?'
If this is totally impossible, could introducing another dataset help?
Sql is not available here and fetchxml can only do so much. So this is going to have to be done with variables in the actual report.Looks like you're using Dynamics CRM. If that being the case, you may be better off posting in MS Dynamics forums. This forum is specifically for Reporting Services and Power view
Please Mark This As Answer if it solved your issue
Please Vote This As Helpful if it helps to solve your issue
Visakh
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SQL query using Group by and Aggregate function
Hi All,
I need your help in writing an SQL query to achieve the following.
Scenario:
I have table with 3 Columns. There are 3 possible values for col3 - Success, Failure & Error.
Now I need a query which can give me the summary counts for distinct values of col3 for each GROUP BY of col1 and col2 values. When there are no values for col3 then it should return ZERO count.
Example Data:
Col1 Col2 Col3
abc 01 success
abc 02 success
abc 01 success
abc 01 Failure
abc 01 Error
abc 02 Failure
abc 03 Error
xyz 07 Failure
Required Output:
c1 c2 s_cnt F_cnt E_cnt (Heading)
abc 01 2 1 1
abc 02 1 1 0
abc 03 0 0 1
xyz 07 0 1 0
s_cnt = Success count; F_cnt = Failure count; E_cnt = Error count
Please note that the output should have 5 columns with col1, col2, group by (col1,col2)count(success), group by (col1,col2)count(failure), group by (col1,col2)count(error)
and where ever there are NO ROWS then it should return ZERO.
Thanks in advance.
Regards,
ShivaHi,
user13015050 wrote:
Thanks TTT. Unfortunately I cannot use this solution because I have huge data for this.T's solution is basically the same as mine. The first 23 lines just simulates your table. Since you actually have a table, you would start with T's line 24:
SELECT col1 c1, col2 c2, SUM(decode(col3, 'success', 1, 0)) s_cnt, ...
user13015050 wrote:Thanks a lot Frank. It helped me out. I just did some changes to this as below and have no issues.
SELECT col1
, col2
, COUNT ( CASE
WHEN col3 = 'SUCCESS'
THEN 1
END
) AS s_cnt
, COUNT ( CASE
WHEN col3 = 'FAILED'
THEN 1
END
) AS f_cnt
, COUNT ( CASE
WHEN col3 = 'ERROR'
THEN 1
END
) AS e_cnt
FROM t1
WHERE c2 in ('PURCHASE','REFUND')
and c4 between to_date('20091031000000','YYYYMMDDHH24MISS') AND to_date('20100131235959','YYYYMMDDHH24MISS')
GROUP BY c1, c2
ORDER BY c1, c2;
Please let me know if you see any issues in this query.It's very hard to read.
This site normally compresses spaces. Whenever you post formatted text (such as queries or results) on this site, type these 6 characters:
\(small letters only, inside curly brackets) before and after each section of formatted text, to preserve spacing.
Also, post exactly what you're using. The code above is SELECTing col1 and col2, but there's no mention of either in the GROUP BY clause, so I don't believe it's really what you're using.
Other than that, I don't see anything wrong or suspicious in the query. -
Can Window and aggregate functions be used in Pro*C?
Are Window functions like dense_rank() over (partition by ... order by ..) available in Pro*C embedded SQL?
Thanks
Rawender GuronPlease refer to this thread: "Is this forum also used for Pro*'C Questions? "
Is this forum also used for Pro*'C Questions? -
Self join or analytical function ..?
Hi
I have a table data like this:
select * from s_table;
ID ADDRESS ADDRESS1 CODE
a1 Dallas Tx 10
b1 DFW Tx 20
c1 Houston Tx 30
d1 Elpaso Tx 40
e1 Austin Tx 50
e1 Austin Tx 51
6 rows selected
Business rule:
I want to concatenate code with a space in between when ID matches previous Id's
so here my output should look like:
ID ADDRESS ADDRESS1 CODE
a1 Dallas Tx 10
b1 DFW Tx 20
c1 Houston Tx 30
d1 Elpaso Tx 40
e1 Austin Tx 50 51
any help is appreciated:
Thanks
JPwith t as (
select 'a1' ID,'Dallas' ADDRESS,'Tx' ADDRESS1,10 CODE from dual union all
select 'b1','DFW','Tx',20 from dual union all
select 'c1','Houston','Tx',30 from dual union all
select 'd1','Elpaso','Tx',40 from dual union all
select 'e1','Austin','Tx',50 from dual union all
select 'e1','Austin','Tx',51 from dual
select id,
address,
address1,
ltrim(sys_connect_by_path(code,' ')) code_list
from (
select id,
address,
address1,
code,
row_number() over(partition by id,address,address1 order by code) rn,
count(*) over(partition by id,address,address1) cnt
from t
where rn = cnt
start with rn = 1
connect by id = prior id
and address = prior address
and address1 = prior address1
and rn = prior rn + 1
ID ADDRESS AD CODE_LIST
a1 Dallas Tx 10
b1 DFW Tx 20
c1 Houston Tx 30
d1 Elpaso Tx 40
e1 Austin Tx 50 51
SQL> SY. -
Oracle doc inconsistent on materialize view with union all and self joins
First of all, I can't seem to create a materialized view containing self-joins AND union all. Is it possible?
I checked Oracle 9i (my version: PL/SQL Release 9.2.0.4.0 - Production) documentation and I get different answers (or so it seems to me).
First I saw this: "The COMPATIBILITY parameter must be set to 9.0 if the materialized aggregate view has inline views, outer joins, self joins or grouping sets and FAST REFRESH is specified during creation..."
Did you see the part about 'self joins' in there? I did and I was pumped because that seems to say that you CAN have 'self joins' (and my compatibility is 9.2...)
BUT
In the very same document I also found "Oracle does not allow self-joins in materialized join views." (rage)
You can see the document I am speaking of here: http://download-west.oracle.com/docs/cd/B10501_01/server.920/a96520/mv.htm#574889
Whenever I try to create the mview I get the following error. (
In any caseORA-01446 cannot select ROWID from view with DISTINCT, GROUP BY, etc.First of all, I can't seem to create a materialized view containing self-joins AND union all. Is it possible?
I checked Oracle 9i (my version: PL/SQL Release 9.2.0.4.0 - Production) documentation and I get different answers (or so it seems to me).
First I saw this: "The COMPATIBILITY parameter must be set to 9.0 if the materialized aggregate view has inline views, outer joins, self joins or grouping sets and FAST REFRESH is specified during creation..."
Did you see the part about 'self joins' in there? I did and I was pumped because that seems to say that you CAN have 'self joins' (and my compatibility is 9.2...)
BUT
In the very same document I also found "Oracle does not allow self-joins in materialized join views." (rage)
You can see the document I am speaking of here: http://download-west.oracle.com/docs/cd/B10501_01/server.920/a96520/mv.htm#574889
Whenever I try to create the mview I get the following error. (
In any caseORA-01446 cannot select ROWID from view with DISTINCT, GROUP BY, etc. -
Our teacher isnt very clear on self joins, and searching brings up too complicated of info for someone like myself just learning, so i was hoping you guys could help out. Table below:
SQL> select * from grade;
STD_CODE GR_LNAME GR_FNAME GR_T1 GR_T2 GR_HW GR_PR
S1 Jordan Michael 95 80 98 90
S2 Barkley Charles 60 100 100 60
S3 Johnson Magic 88 98 96 98
S4 Williams Serena 92 92 92 92
S5 Duncan Tim 94 90 94 96
S6 Graff Steffi 85 84 83 72
S7 Navratilova Martina 91 88 94 95
Need to solve this question:
Create a view that will display names of students that have identical average grade (average of gr_t1, t2, hw, and pr)
I learned that we needed to create a self join to sniff out the averages that were the same.
I am pretty clueless on the logic of self join, but I made an attempt:
CREATE VIEW SAME_GRADES2 AS SELECT S.STD_FNAME, S.STD_LNAME, (GR_T1+GR_T2+GR_HW+GR_PR)/4 AVG_GR
FROM GRADE S, GRADE G
WHERE S.AVG_GR=G.AVG_GR;
i get an error on this: ORA-00904: "G"."AVG_GR": invalid identifier
No idea. Any help for a newbie?sorry that last one was a syntax error... here is the result (obviously not what i need)
GR_FNAME GR_LNAME AVG_GR
Michael________Jordan____________90.75
Charles________Barkley____________80
Magic________Johnson____________95
Martina________Navratilova_________92
Serena________Williams____________92
Tim________Duncan______________93.5
Steffi________Graff _______________81
Martina________Navratilova _________92
Serena________Williams____________92
9 rows selected.
code:
CREATE VIEW SAME_GRADES2 AS SELECT S.GR_FNAME, S.GR_LNAME, (S.GR_T1+S.GR_T2+S.GR_HW+S.GR_PR)/4 AVG_GR
FROM GRADE S, GRADE G GROUP BY S.GR_FNAME
WHERE (S.GR_T1+S.GR_T2+S.GR_HW+S.GR_PR)/4 = (G.GR_T1+G.GR_T2+G.GR_HW+G.GR_PR)/4;
Edited by: user10188205 on Oct 22, 2008 4:42 PM -
Below expression works fine with text box but gives error in dataset expression.
="SET FMTONLY OFF select "+ join(Parameters!Column.Value,",") +" FROM pamcustom.dbo.vw_HFL_HFD_HotfileData INNER JOIN pamcustom.dbo.HFL_HFB_HotFileBatch on BatchID = HFB_intBatchID where BatchID ="+Parameters!BatchId.Value+"
and "+Parameters!cmbTranType.Value+" "+ iif(CountRows("DS_Aml_Mnr_Iss_Desc")=Parameters!Mnr_Iss_Desc.count," "," and aml_mnr_iss_desc in "+"('" & join(Parameters!Mnr_Iss_Desc.Value,"','")
& "')")+iif(CountRows("ds_ReportingCategory")=Parameters!ReportingCategory.count," "," and ReportingCategory in "+"('" & join(Parameters!ReportingCategory.Value,"','") & "')")+iif(CountRows("ds_NAICSubGroup")=Parameters!NAICSubGroup.count,"
"," and naicsubgroup in "+"('" & join(Parameters!NAICSubGroup.Value,"','") & "')")+iif(CountRows("ds_PortTrading")=Parameters!PortTrading.count," "," and porttrading in "+"('"
& join(Parameters!PortTrading.Value,"','") & "')")+iif(CountRows("ds_GL_LE")=Parameters!GL_LE.count," "," and gl_le in "+"('" & join(Parameters!GL_LE.Value,"','") &
"')")+iif(CountRows("ds_coagroup")=Parameters!cmbCoaGrp.count," "," and coagroup in "+"('" & join(Parameters!cmbCoaGrp.Value,"','") & "')")+iif(CountRows("Portfolio")=Parameters!cmbPort.count,"
"," and portfolio in "+"('" & join(Parameters!cmbPort.Value,"','") & "')")+IIf(IsNothing(Parameters!txtSecID.Value)," "," and secid in ('"+Replace(Parameters!txtSecID.Value,",","','")+"')")+iif(IsNothing(Parameters!minPortFilter.Value)
and IsNothing(Parameters!MinPort.Value)," "," and portfolio "+Parameters!minPortFilter.Value+Parameters!MinPort.Value)+iif(IsNothing(Parameters!maxPortFilter.Value) and IsNothing(Parameters!MaxPort.Value)," ","
and portfolio "+Parameters!maxPortFilter.Value+Parameters!MaxPort.Value)+iif(IsNothing(Parameters!minCoaFilter.Value) and IsNothing(Parameters!txtMinCoa.Value)," "," and portfolio "+Parameters!minCoaFilter.Value+Parameters!txtMinCoa.Value)+iif(IsNothing(Parameters!maxCoaFilter.Value)
and IsNothing(Parameters!txtMaxCoa.Value)," "," and portfolio "+Parameters!maxCoaFilter.Value+Parameters!txtMaxCoa.Value)
I guess the error " Aggregate and lookup functions cannot be used in query parameter expressions." is because I am using CountRow to ensure that if all values of multi select all selected i will not use that filter in where clause.
Pls. guide...Hi, Include your parameter total count in the dataset for parameter and instead of using countrows() function use the count from dataset in the expression.
Hope this helps.........
Ione -
Using aggregate function pulls an additional table in join
Hello,
We're facing a wierd scenario whereby using an aggregate function in a report brings an additional table in the query, which should not be included. Please throw some light on this if you have any idea why this would happen. Here are the details
OBIEE version: 10.1.3.4
I pull 2 columns in my report - Col1 (numeric column from Dim A), Col2 (date column from Dim B)
I have already set an implicit fact column in that subject area (Col3 from Fact X)
Now when I run this report, the FROM clause of the sql correctly shows Dim A, Dim B, Fact X
Later, I apply a MAX function on Col2 (date column from Dim B). Ideally, the FROM clause of my sql should still be the same. But here is what happens...
FROM Dim A, Dim B, Fact X, Fact Y (Bridge table).
Fact Y is a bridge table that we are using in this subject area. But there is no reason why this table should get pulled in this query just by using an aggregate function in it.
Your thoughts and insights will be highly appreciated.
Thanks,
VahibDid you apply MAX in the aggregate function section? If that is the case, OBIEE is forced to consider logical table for Dim B as a fact and brings in Y as a way to resolve the join between two facts.
Try setting up a new fact and create MAX column there. See if it resolves that problem or not. You may also want to bring Dim B in the LTS of the main fact and create a column with MAX aggregation. That should work too. -
Join tables with aggregate function
Hello
I have 4 views that I need to perform aggregate function, count, on and then join them for query output.
Basically each view has a column with a score and a subcontractor name. One subcontractor may have more than one score in each view.
Here is the sql that I'm working with thus far:
select e.sub_name, (count(e.score) - 1), (count(v.score) - 1), (count(s.score) - 1), (count(u.score) - 1)
from speed.v_ratings_ex e, speed.v_ratings_vg v, speed.v_ratings_sat s, speed.v_ratings_uns u
where v.sub_name = e.sub_name
and s.sub_name = e.sub_name
and u.sub_name = e.sub_name
group by e.sub_name
order by e.sub_name asc;
This results in each column returning the same value b/c the join is performed before the aggregate function.
Can anyone offer some help so that I may get the desired results?You need to use in-line views to perform the aggregates, then join the in-line views.
Something like:
SELECT e.sub_name, e.score - 1 escore, v.score - 1 vscore,
s.score - 1 sscore, u.score - 1 uscore
FROM (SELECT sub_name,count(*) score
FROM v_ratings_ex
GROUP BY sub_name) e,
(SELECT sub_name,count(*) score
FROM v_ratings_vg
GROUP BY sub_name) v,
(SELECT sub_name,count(*) score
FROM v_ratings_sat
GROUP BY sub_name) s,
(SELECT sub_name,count(*) score
FROM v_ratings_uns
GROUP BY sub_name) u
WHERE v.sub_name = e.sub_name and
s.sub_name = e.sub_name and
u.sub_name = e.sub_name
ORDER BY e.sub_name asc;TTFn
John
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