How to update this query and avoid performance issue?

Hi, guys:
I wonder how to update the following query to make it weekend day aware. My boss want the query to consider business days only. Below is just a portion of the query:
select count(distinct cmv.invoicekey ) total ,'3' as type, 'VALID CALL DATE' as Category
FROM cbwp_mv2 cmv
where cmv.colresponse=1
And Trunc(cmv.Invdate) Between (Trunc(Sysdate)-1)-39 And (Trunc(Sysdate)-1)-37
And Trunc(cmv.Whendate) Between cmv.Invdate+37 And cmv.Invdate+39the CBWP_MV2 is a materialized view to tune query. This query is written for a data warehouse application, the CBWP_MV2 will be updated every day evening. My boss wants the condition in the query to consider only business days, for example, if (Trunc(Sysdate)-1)-39 falls in weekend, I need to move the range begins from next coming business day, if (Trunc(Sysdate)-1)-37 falls in weekend, I need to move the range ends from next coming business day. but I should always keep the range within 3 business days. If there is overlap on weekend, always push to later business days.
Question: how to implement it and avoid performance issue? I am afraid that if I use a function, it greatly reduce the performance. This view already contains more than 100K rows.
thank you in advance!
Sam
Edited by: lxiscas on Dec 18, 2012 7:55 AM
Edited by: lxiscas on Dec 18, 2012 7:56 AM

You are already using a function, since you're using TRUNC on invdate and whendate.
If you have indexes on those columns, then they will not be used because of the TRUNC.
Consider omitting the TRUNC or testing with Function Based Indexes.
Regarding business days:
If you search this forum, you'll find lots of examples.
Here's another 'golden oldie': http://asktom.oracle.com/pls/apex/f?p=100:11:0::::P11_QUESTION_ID:185012348071
Regarding performance:
Steps to take are explained from the links you find here: {message:id=9360003}
Read them, they are more than worth it for now and future questions.

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How to rewrite this query to avoid duplicates , please

Hello Good Morning All,
Happy New Year,
Could you please help to rewrite the below two queries (so that i can avoid duplicates) i need to send email to everyone not the dupllicated ones), please?
Create table #MyPhoneList
AccountID int,
EmailWork varchar(50),
EmailHome varchar(50),
EmailOther varchar(50),
IsOffersToWorkEmail bit,
IsOffersToHomeEmail bit,
IsOffersToOtherEmail bit,
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--> In this table AccountID is uniquee
--> email values could be null or repetetive for work / home / Other (same email can be used more than one columns for accountid)
-- a new column will be created with name as Sourceflag( the value could be work, Home, Other depend on email coming from) then removes duplicates
SELECT AccountID , Email, SourceFlag, ROW_NUMBER() OVER(PARTITION BY AccountID, Email ORDER BY Sourceflag desc) AS ROW
INTO #List
from (
  SELECT AccountID
     , EmailWork      AS EMAIL
     , 'Work'       AS SourceFlag
  FROM #MyPhoneList (NoLock) eml
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UNION
  SELECT AccountID
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     , 'Home'       AS SourceFlag
  FROM #MyPhoneList (NoLock) eml
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UNION
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     , 'Other'       AS Sourceflag
  FROM #MyPhoneList (NoLock) eml
  WHERE EmailOther      = 1
  AND  EMAILOther      IS NOT NULL
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) eml --select count(*) from #email
--Email dedupe on source
SELECT * INTO #distinct FROM #List WHERE ROW = 1
Thank you in Advance
Milan

Please follow basic Netiquette and post the DDL we need to answer this. Follow industry and ANSI/ISO standards in your data. You should follow ISO-11179 rules for naming data elements. You should follow ISO-8601 rules for displaying temporal data. We need
to know the data types, keys and constraints on the table. Avoid dialect in favor of ANSI/ISO Standard SQL. And you need to read and download the PDF for:
https://www.simple-talk.com/books/sql-books/119-sql-code-smells/
>> Could you please help to rewrite the below two queries (so that I can avoid duplicates) I need to send email to everyone not the duplicated ones), please? <<
This mess is not a table because it has no keys, not way to have a key. You are using UNION like we used punch card merges in the o9ld days.
What math do you do on the account_id? That is the only reason that you use numeric values Why do you think that an email is fifty characters long? Yes, most them are, but did you bother to look at the maximum length? NO! Why did you name it “Phone_List” when
it is nothing but email addresses? emails are not phones.
Please read this article so you will know why RDBMS does not use assembly language flags like you are doing.
https://www.simple-talk.com/sql/t-sql-programming/bit-of-a-problem/
It would also help if you know what normalization was. Here is one design that is valid.
CREATE TABLE Something_emails
(account_id CHAR(15) NOT NULL,
email_address VARCHAR(256) NOT NULL,
email_type CHAR(5) NOT NULL
CHECK (email_type IN ('home', 'work', 'misc')),
PRIMARY KEY (email_address, email_type)
>> In this table account_id is unique <<
No, not without the DDL you did not post.
>> email values could be NULL or repetitive for work / home / Other (same email can be used more than one columns for account_id) <<
Not a problem. Look at the primary key. Also why would anyone store invalid data in a table? SQL programmers try to keep it out!
>> a new column will be created with name as Source_flag (the value could be work, Home, Other depend on email coming from) then removes duplicates <<
More kludges! Oh, putting the comma at the front of a line is how non-SQL mimic punch cards. An SQL progtrqammer would put related subsets of columns on one line – we think in sets! After 30+ years of SQL, this is one of the code smells I use to find bad
code.
--CELKO-- Books in Celko Series for Morgan-Kaufmann Publishing: Analytics and OLAP in SQL / Data and Databases: Concepts in Practice Data / Measurements and Standards in SQL SQL for Smarties / SQL Programming Style / SQL Puzzles and Answers / Thinking
in Sets / Trees and Hierarchies in SQL

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AND AC.TABLE_NAME='&TABLE'
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TAKE THE CASE OF SCOTT.EMP(AS INPUT TO YOUR QUERY)
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Try this query
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Hello All Good Evening,
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please help me
select planno, status1, count(*) Counts from
select a.ValetNO PlanNo ,
case
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     when JoinCode in ('20', '21', '22', '23','38', '39') then
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Whats your objective here? Sorry, am not able to understand the reason for this change.
Try the below:(Not tested)
;With cte
As
select a.ValetNO PlanNo ,
case
when JoinCode in ('00', '01', '02') then 'Actcess'
when JoinCode in ('20', '21', '22', '23','38', '39') then
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from dbo.ppt a(NOLOCK) left join dbo.acts b on a.P_ID = b.P_ID and a.ValetNO = b.ValetNO
select planno, status1, count(*) Counts from cte
a group by planno, status1
order by 2
Even below:
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case
when JoinCode in ('00', '01', '02') then 'Actcess'
when JoinCode in ('20', '21', '22', '23','38', '39') then
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from dbo.ppt a(NOLOCK) left join dbo.acts b on a.P_ID = b.P_ID and a.ValetNO = b.ValetNO
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case
when JoinCode in ('00', '01', '02') then 'Actcess'
when JoinCode in ('20', '21', '22', '23','38', '39') then
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select facility, route, operation, script_id
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select facility, route, operation, script_id
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Edited by: 965547 on Nov 5, 2012 12:55 AM

The only difference which i am seeing in your queries is the Operation ('6910', '6912','7344','8344')
Then why don't you put all values in One like this
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CHILD_ID
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