Skip to main content

How to generate moving Average of Last two days

Hi friend,  

These days I become little bit Lazy. The reason was my long leave from work. I visited my Hometown in Durga Puja. It was really very cheerful moment for me to meeting with parents and cousins. Please  don’t ask about my last 7 Days I was suffered with Eye-Flue. It isolated me becouse I was not  unable to use TV/Computer/Phone/Book, social media and SQL. After 6 days  now i become OK. Session of Diwali festival also comes up. So I should wake up and write some Diwali special Query. 

I started my SQL Server, opened SSMS and New Query Editor new problem …..

How to generate Running Average of Last two days?


Date Day Cost
08-Oct Wed  [10]
09-Oct Thurs [15]
10-Oct Fri [20]
13-Oct Mon [30]
14-Oct Tue [40]

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

create table #costCenter
(
dat  date,
days varchar(20),
cost  int
)
-----------------------------------------

insert into #costCenter(dat,days,cost)

select '10/08/2014','Wed',10 union
select '10/09/2014','Thurs',15 union
select '10/10/2014','Friday',20 union
select '10/13/2014','Mon',30  union
select '10/14/2014','Tues',40 

select * from #costCenter

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




SELECT     dat,days,cost ,avg(cost) OVER (
ORDER BY dat ROWS BETWEEN 1 PRECEDING AND CURRENT ROW
) AS AvgCOST
FROM   #costCenter


Result :




Comments

Post a comment

Plz dont forget to like Facebook Page..
https://www.facebook.com/pages/Sql-DBAcoin/523110684456757

Popular posts from this blog

mongoDB error : aborting after fassert() failure

What to do when facing errors on mongoDB “aborting after fassert() failure”

I like errors, in mongoDB this is the first error I faced and luckily many times. This error i faced during restoring name-space on local and restarting db system. I am still searching the exact root cause of this issue but i am able to resolve the current problem through below steps.

Remove all relevant namespace files from data-file route path..Now repair mongo instance using mongod process.mongod --repair ////////// execute command from bin folder path Then start server using mongd process, if started server successfully then ..mongod  ////////// execute command from bin folder path Restore last backups as normal process.Now check database by connecting mongo shell. Thanks for reading, 
Please comment your experience if you faced and also share knowledge if you have better steps to resolve...


https://www.facebook.com/pages/Sql-DBAcoin/523110684456757

SQL71562: external references are not supported when creating a package from this platform

Last week I got this error from one of developer who was trying to deploy his project from Testing server to SQL Azure QA server. He was using “Deploy Database to SQL Azure” option from SSMS Tool-Task option.

After connecting to SQL Azure portal when operation started to deployment below errors occurs.

Validation of the schema model for data package failed. Error SQL71562: Error validating element xx.xxx.xx:function .dbo.xxx has an unresolved refrence to object xx.dbo.xxxx external refrences are not supported when creating a package from this platform.



Reason: The reason of the this error was; some functions of project was dependent on master database and only single database was being deploy to SQL Azure. DACFx must block Export when object definitions (views, procedures, etc.) contain external references, as Azure SQL Database does not allow cross-database external references So, this error was coming.

Solution : I suggested him to create those function to locally on local database what…

How to add an article in Transactional Replication

If we have a set-up of Transactional Replication for Data Distribution running and wanting to add new object to replication on other server we can follow below process.
To add an article In Transaction replication with PUSH Subscription