Calculate Average Growth Rate
Apr 30, 2008
I've got a statistics table that I've been writing to for about 2 years now. Every saturday night, a size (in MB) snapshot of each DB file is taken and dumped into this table. I'm then emailed a copy for that week.
Now, I'm trying to figure out what the fastest growers are. Here's the table ddl
CREATE TABLE [dbo].[DBSizeStats] (
[statid] [int] IDENTITY (1, 1) NOT NULL ,
[LogDate] [datetime] NULL ,
[Server] [varchar] (10) COLLATE SQL_Latin1_General_CP1_CI_AS NULL ,
[DBName] [varchar] (200) COLLATE SQL_Latin1_General_CP1_CI_AS NULL ,
[MDFName] [varchar] (200) COLLATE SQL_Latin1_General_CP1_CI_AS NULL ,
[MDFSize] [decimal](18, 0) NULL ,
[LDFName] [varchar] (200) COLLATE SQL_Latin1_General_CP1_CI_AS NULL ,
[LDFSize] [decimal](18, 0) NULL ,
[TotalSize] [decimal](18, 0) NULL
) ON [PRIMARY]
GO
What I'm trying to figure out is how to query the average monthly and yearly growth percentages per DB on the MDFSize column.
I'm usually pretty good at this sort of thing, but I just can't seem to wrap my head around how to solve this issue. I'm not having a very good math day.
what am I missing here?
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Apr 22, 2015
Wanted to do the forecasting of disk growth for one year. How to find the database growth rate?
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Aug 25, 2015
I am only DBA in my company and client want to know the growth rate of his SQL server DataBase which is in production. How can I get the growth rate per day?
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Oct 22, 2015
I have a table Product2 as the attachment at the bottom. Now i want to create a Column "Purchasing rate" over Product and Region like this. I tried some Code but it gave me still Error.
createtableProduct2
(
[product] [varchar](255),
[Region] [varchar](15),
[Subregion] [varchar](25),
[Code] ....
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Feb 5, 2008
I want to be able to display the percent of growth for databases on the server. My query has the file sizes and names and the dates, its done monthly . How do i create a field with the growth % from one month to the next, or from one date entry , to the next. so it appears like this
2006 2007 2008
23000 % growth 3400 %growth 20000
keep in mind, this is how it is displayed in reporting services with a matrix(crosstab)
Here's my query
Code Snippet
SELECT RC_STAT.dbo.Tbl_Database_Statistics.AutoId, RC_STAT.dbo.Tbl_Database_Statistics.Server_Description,
RC_STAT.dbo.Tbl_Database_Statistics.Database_Size_Datetime, RC_STAT.dbo.Tbl_Database_Statistics.Database_Description,
RC_STAT.dbo.Tbl_Database_Statistics.Database_Size_Mb, RC_STAT.dbo.Tbl_Database_Statistics.Database_Location,
RC_STAT.dbo.Tbl_Database_Statistics.Database_File_Name, DbSTAT.MonthlyDBTotal
FROM RC_STAT.dbo.Tbl_Database_Statistics INNER JOIN
(SELECT Database_Size_Datetime, Server_Description, Database_Description, SUM(Database_Size_Mb) AS MonthlyDBTotal
FROM RC_STAT.dbo.Tbl_Database_Statistics AS Tbl_Database_Statistics_1
GROUP BY Database_Size_Datetime, Server_Description, Database_Description) AS DbSTAT ON
DbSTAT.Server_Description = RC_STAT.dbo.Tbl_Database_Statistics.Server_Description AND
DbSTAT.Database_Description = RC_STAT.dbo.Tbl_Database_Statistics.Database_Description AND
DbSTAT.Database_Size_Datetime = RC_STAT.dbo.Tbl_Database_Statistics.Database_Size_Datetime
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Feb 7, 2008
This code displays dates, File name, and File size for four seperate dates 11/20/2007 , 11/30/2007, 12/30/2007 and 01/31/2007 . I'm trying to show the percentage growth from date to date (ie 11/20/2007 -11/30/2007 percentage growth)
is there a way i can get the previous date file size for each entry, so i can have a variable for the calculation. Or i can get the calculate it within this code (ie database_size_mb / ((database_size_md ) where database_size_datetime -1) *100
or whatever the formula is for percentage growth.
Code Snippet
SELECT
Database_Size_Datetime,
Database_file_name,
Database_Size_Mb
FROM RC_STAT.dbo.Tbl_Database_Statistics AS Tbl_Database_Statistics_1
GROUP BY Database_Size_Datetime, Database_file_name, Database_Size_Mb
this is what it displays now:
2007-11-20 00:00:00.000 ACTReplication_Data 442.5000
2007-11-30 00:00:00.000 ACTReplication_Data 442.5000
2007-12-31 00:00:00.000 ACTReplication_Data 442.5000
2008-01-31 00:00:00.000 ACTReplication_Data 442.5000
2007-11-20 00:00:00.000 ACTReplication_Log 14.8125
2007-11-30 00:00:00.000 ACTReplication_Log 109.7500
2007-12-31 00:00:00.000 ACTReplication_Log 112.9375
2008-01-31 00:00:00.000 ACTReplication_Log 115.5625
2007-11-20 00:00:00.000 BAMArchive 0.6875
2007-11-30 00:00:00.000 BAMArchive 0.6875
2007-12-31 00:00:00.000 BAMArchive 0.6875
2008-01-31 00:00:00.000 BAMArchive 0.6875
2007-11-20 00:00:00.000 BAMArchive_log 0.4922
2007-11-30 00:00:00.000 BAMArchive_log 0.4922
2007-12-31 00:00:00.000 BAMArchive_log 0.4922
2008-01-31 00:00:00.000 BAMArchive_log 0.4922
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Nov 29, 2013
I am trying to calculate an average within a query:
coalesce(field1, 0) + coalesce(field2], 0) + coalesce(field3, 0)/Count [AVG]
It seems to be subtracting the value of field3 from the total of 3 fields at some points instead of giving me the average.Some of the results are here:
Count Field1 Field2 Field3 Total Average
===== ====== ====== ====== ===== =======
2NULL6NULL66
11NULL28134129
10NULL33NULL3333
3NULL12NULL1212
[code]....
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May 27, 2015
I have a few columns: Week1, Week2, Week3, Week4, Week5
i.e.
Week1 = 5
Week2 = 0
Week3 = 10
Week4 = 7
Week5 = 0
How do I calculate the average based on the fields that are not zero?
Incorrect:
(5+0+10+7+0)/5 = 4.4
Correct:
(5+0+10+7+0)/3 = 7.3
How to let create a custom column to let the SQL know that I only want to divide by 3 instead of 5?
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Apr 22, 2008
I want to calculate average row size of a record. By based on this i want to add some more columns into an existing table. Here is my table structureCREATE TABLE patient_procedure( proc_id int IDENTITY(1,1) CONSTRAINT proc_id_pri_key PRIMARY KEY, patient_id int NULL, surgeon_name varchar(40) NOT NULL, proc_name varchar(20) , part_name varchar(30), wth_contrast int , wthout_contrast int , wth_wthout_contrast int, xray_part varchar(60), arth_area varchar(30), others varchar(30) , cpt varchar(20) , procedure_date smalldatetime NOT NULL, mraloperrun varchar(20),CONSTRAINT patientid_foreign_key FOREIGN KEY(patient_id) REFERENCES dbo.patient_information (Patient_id)) Now i got a requirement that i have to add two more procedures with different columns.The columns overall size is 195 bytes.I can place those two procedures as seperate tables. I dont want to do that becuase of front end requirements.Here the problem is when the user enters these two procedures information remaining fields will store the null value. I know that when we store the null values into corresponding columns min of 1 byte will be occupied. Please suggest me that shall i include these columns into the above table. If i add these columns is performance will be decreased or not. Waiting for valuable suggestions.
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Jun 11, 2007
ok so i have this table:
Code:
Products_Sold
priceSold - money
itemsSold - int
An example of 4 rows on my table would be like this
$1400 80
$1500 85
$1560 82
$1700 81
to calculate the average of the price sold related to the number of sold items just have to do
Select avg(priceSold*itemsSold)
But sometimes i just want the average price of the first 100 sold items, so how can i make my query to just use the first 100 sold items?
in math it would be like this
average= ( (1400*80) + (1500*20) ) / 100
but if i wanted the first 200 it would be like this
average= ( (1400*80) + (1500*85) + (1560*35)) / 200
and if i wanted the first 300 would be like this
average= ( (1400*80) + (1500*85) + (1560*82) + (1700*53)) / 300
but of course the number i want will always be a variable which is less than the total of the products sold. So, how the heck do i program this query where the number of the items sold is variable and it will take the rows of the database depending on how many items were sold.
I hope i didnt wrote my explanation too confusing and that i can get any help from you guys. thank you a lot for the help and byye
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Sep 2, 2007
Hi,
How do I Calculate Average Leadtime...
I have a Table named "iCalls_Calls" which has 2 Columns (start_Date and Closed_Date).I need to calculate average leadtime based on the columns from this table . I have a query and i need to add this ( calculate average leadtime) to this query.
Code:
SELECT B.USER_DIVISION,B.USER_DEPARTMENT,COUNT(*) FROM iCalls_Calls A INNER JOIN iCalls_Users B on A.REQUESTOR = B.USER_ID
GROUP BY USER_DIVISION,USER_DEPARTMENT
Can anyone send me the correct query to calculate the average time ?
Thanks..
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Aug 6, 2004
Hi this might be pretty simple to you guys out there but i am having issues doing it.
Please help!!!!!!!!!!
Calculate Average of a measure called DIST irrespective of any dimension the page field.
Ie. to say it should calculate the average for any doension i bring on the rwo field.
Looking forward to your help.
you can mail me at hem_k01@yahoo.com
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Jan 16, 2014
How to calculate the overall average number of days taken to complete something.
The two fields are enquiry_date (date enquiry is recorded) and complete_date (date enquiry completed/closed).
Each enquiry has a enquiry_number
Sample data typically looks like:
Enquiry number - enquiry_time - complete date
1 - 01/01/2014 - 12/01/2014
2 - 01/01/2014 - 11/01/2014
3 - 01/01/2014 - 10/01/2014
4 - 01/01/2014 - 07/01/2014
5 - 01/01/2014 - 12/01/2014
6 - 01/01/2014 - 04/01/2014
etc.
What is the piece of SQL which looks at the average date difference for each enquiry and then sums it all up to give an overall average number of days it takes?
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Feb 26, 2008
im trying to learn how to calculate table size.
i understand some of it, but im stuck at calculating the varchars
Ex. i have 2 varchar columns
- varchar(50)
- varchar(100)
i'm suppose to find the average length for them?
i'm suppose to use that to add up to my ROW SIZE
and also after i got the average, do i add 2 for variable columns overhead and another 2 for Row pointer in row offset array
please help me asap before 2morrow night.
Thanks!
i have a test
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Sep 11, 2013
I need calculating a rolling 3 month average cost from the two dataset below. Which is the 3 month Average of Dataset1 / Dataset 2.
Dataset 1:
SELECT(factAdmissions.ContractCode + '-' +factAdmissions.BenefitPlanCode) AS [Contract Code],
factAdmissions.AdmitCCYYMM,
ISNULL(sum(AmountPaid),0)As [Amount Paid]
FROM factAdmissions
[Code] ....
Dataset2:
Select
(factMembership.ContractCode+'-'+ factMembership.BenefitPlanCode) As Product,
EffectiveCCYYMM,
ISNULL(count(Distinct MemberId),0) As MemberCount
From factMembership
Where EffectiveCCYYMM >= '200701'
[Code] ....
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Oct 8, 2013
I have one table with columns patientName , Nurse,ArrivalDate, DepartDate . It has all the patient information for all the Nurses.
I need to calculate Number of patients per Nurse and Average number of patients per day per nurse.
We need to calculate Average Number of patients per day per nurse = Total Patients per nurse/No.of unique days they worked
I need my report as like this.
DistinctNurse No.ofPatients AvgNo.ofpatients PerDay
Tina 100 25
Sony 50 16.6
How to get the result as above.
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Oct 30, 2015
Col1 Col2 Col3 Col4
54763.00 21 0 0
--Row1
59574.00 23 0 0
--Row2
64085.00 20 0 0
--Row3
0.0 0.00 0 0 0
--Row4
I'm trying to calculate Average of Col1 of above table based on below scenario:
CASE WHEN all the columns in the above table are “0” (as highlighted) THEN I want AVERAGE of Col1 as (Row1+Row2+Row3)/3
ELSE if at least one of the column of highlighted row has value other than “0”, THEN I want the AVERAGE of Col1 to be (Row1+Row2+Row3+Row4)/4
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Jun 21, 2015
Calculation of an average using DAX' AVERAGE and AVERAGEX.This is the manual calculation in DW, using SQL.In the tabular project (we're i've noticed that these 4 %'s are in itself strange), in a 1st moment i've noticed that i would have to divide by 100 to get the same values as in the DW, so i've used AVERAGEX:
Avg_AMP:=AVERAGEX('Fct Sales';'Fct Sales'[_AMP]/100)
Avg_AMPdollar:=AVERAGEX('Fct Sales';'Fct Sales'[_AMPdollar]/100)
Avg_FMP:=AVERAGEX('Fct Sales';'Fct Sales'[_FMP]/100)
Avg_FMPdollar:=AVERAGEX('Fct Sales';'Fct Sales'[_FMPdollar]/100)
The results were, respectively: 701,68; 2120,60...; -669,441; and finally **-694,74** for Avg_FMPdollar.i can't understand the difference to SQL calculation, since calculations are similar to the other ones. After that i've tried:
test:=SUM([_FMPdollar])/countrows('Fct Sales') AND the value was EQUAL to SQL: -672,17
test2:=AVERAGE('Fct Sales'[_Frontend Margin Percent ACY]), and here, without dividing by 100 in the end, -696,74...
So, AVERAGE and AVERAGEX have a diferent behaviour from the SUM divided by COUNTROWS, and even more strange, test2 doesn't need the division by 100 to be similar to AVERAGEX result.
I even calculated the number of blanks and number of zeros on each column, could it be a difference on the denominator (so, a division by a diferente number of rows), but they are equal on each row.
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Feb 15, 2008
I have a temp_max column and a temp_min column with data for every day for 60 years. I want the average temp for jan of yr1 through yr60, averaged...
I.E. the avg temp for Jan of yr1 is 20 and the avg temp for Jan of yr2 is 30, then the overall average is 25.
The complexity lies within calculating a daily average by month, THEN a yearly average by month, in one statement.
?confused?
Here's the original query.
accept platformId CHAR format a6 prompt 'Enter Platform Id (capital letters in ''): '
SELECT name, country_cd from weather_station where platformId=&&platformId;
SELECT to_char(datetime,'MM') as MO, max(temp_max) as max_T, round(avg((temp_max+temp_min)/2),2) as avg_T, min(temp_min) as min_temTp, count(unique(to_char(datetime, 'yyyy'))) as TOTAL_YEARS
FROM daily
WHERE platformId=&&platformId and platformId = platformId and platformId = platformId and datetime=datetime and datetime=datetime
GROUP BY to_char(datetime,'MM')
ORDER BY to_char(datetime,'MM');
with a result of:
NAME_________________CO
-------------------- --
OFFUTT AFB___________US
MO______MAX_T _____AVG_T__MIN_TEMTP_TOTAL_YEARS
-- ---------- ---------- ---------- -----------
01_________21______-5.31________-30__________60
02_________26______-2.19______-28.3__________61
03_______31.1_______3.61______-26.1__________60
04_______35.6______11.07______-12.2__________60
05_______37.2_______17.2_______-3.3__________60
06_______41.1______22.44__________5__________60
07_______43.3______24.92________7.2__________60
08_______40.6______23.71________5.6__________60
09_________40______18.84_______-2.2__________59
10_______34.4_______12.5_______-8.9__________59
11_________29_______4.13______-23.9__________60
12_________21______-2.52______-28.3__________60
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Oct 13, 2004
If you are familiar with Crystal reports or Visual basic, you may be familiar with the Rate and Pmt functions.
I need to duplicate them in SQL sever 7.
Anybody have code for this already? I hate re-inventing the wheel.
More (Unnecesary) details:
I have a client who has handed me the formula that I need to use for calculating Interest rates. Unfortunatly, the formula was written in Crystal reports, so now I need to pick it apart and do the work that CR does automaticly. Any help?
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Oct 27, 1999
Hello,
Does 7.0 store db Growth rate information?
I am looking for information that tells me how fast a db is growing in MB and or percentages over a given period of time, ie weekly, monthly, yearly etc. Either in real numbers or estimates. Does 7.0 already store something like this or do I need to create some code for this?
Or does someone have something like this already coded that they would be willing to share?
Thank you in advance.
Troy
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Jul 15, 2004
Hi,
I want to store tax rate in my tables. I set the data type to float, I wan't 4 decimal places and the data in the table has 4 decimals, but when I run a query in query analyzer it returns: 4.4999999999999998E-2 instead of 0.045.
How can I fix this?
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May 8, 2008
I am working with a company that needs some SQL Reporting developed. What is the going rate for SQL Reporting work?
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May 29, 2014
I have a Table as below
Month Year Rate
1 2013 100
2 2013 101
8 2014 105
The rate is the value for the Month(1)January and year 2013.
I wana have a query which need to get rate value between 3rd month 2013 and 5the month 2014.
The Output has to be
3 2013 101
4 2013 101
5 2013 101
to
4 2014 105
5 2014 105
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Jan 25, 2003
anyone wrote a function to calcuate internal rate of return?
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Feb 9, 2007
I have installed a SQL Server diagnose tool for evaluation. It prompts and warns me that "Procedure Cache hit rate is for example 15%. Its help indicates:
The Procedure Cache Hit Rate alarm is raised when the ratio between the number of times SQL Server looks for a plan in the procedure cache and the number of times it does not find a required plan in the procedure cache falls below a threshold.
A low procedure cache hit rate indicates that SQL Server is finding fewer of the query execution plans it needs already in memory and therefore has to perform more compiles. These extra compilations will degrade SQL Server performance by causing extra CPU load.
What can I do to increase the rate?
Canada DBA
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Mar 26, 2004
Have the following rate schedule - amount and discount rate
$0-10 = 1% discount
$10-100 = 2%
$100-over = 3%
I created the following rate table with min range and no max range so last entry will handle everything over 100$
$0 1%
$10 2%
$100 3%
I then create a view to translate it as min and max range
$0 10 1%
$10 100 2%
$100 max 3%
Select* from view where $10 between minrange and maxrange
give 2 rows
1%
2%
Question: Is there a way to structure the rate table so I can use SELECT BETWEEN and
what is the most common way to setup a rate table
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Aug 29, 2005
I need to pickup a tax rate, that is stored on a 1 record file. I would like to avoid using the CROSS JOIN. Is there a way to SELECT the record and set a Variable = to the tax rate so I can pickup the rate in another SELECT statement on each record?
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Oct 16, 2007
Hi
We are having problems with our SQL server 2000.
The problem is that on a daily basis we run out of disk space and I always have to run shrinkdatabase on tempdb.
Today we started with 160GB of free space and by the end of the day it was gone!
Yes we do have many jobs running on our SQL server pulling data in from many sources. But I dont know how to find out which job is causing this problem. I have a suspicion that it could be a job that runs hourly that pulls data from Oracle (approximately 10000 rows each time), but that job has been active since the 28th August 2007. We only started running out of space in the past 5 days. Any suggestions would be appreciated as to what is causing this or how to diagnose the problem.
Thanks
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Mar 18, 2008
I have a 32 bit SQL 2005 EE clustered installation with 10GB of physical memory and AWE enabled. Our monitoring tool, Spotlight, is reporting the Procedure Cache to be 384MB and a Hit Rate of 75% on a fairly regular basis. Sometimes the Procedure Cache increases to 495MB and a Hit Rate of 82%.
(1) With 2005 can the Procedure Cache be increased?
(2) What is the max size of Procedure Cache?
(3) How do I increase the Hit Rate to a higher percentage?
I do not encounter the issue on any other SQL Server installation, however this is our only cluster.
DBCC PROCCACHE
num proc buffs = 64889
num proc buffs used = 1135
num proc buffs = 1135
active proc cache size = 2896
proc cache used = 364
proc cache active = 364
Thanks, Dave
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Apr 21, 2006
Hi, all here, I found that in my case when I trained the data mining models, the model cover rate is very low (in my case, the train data set has 82 rows but the case occuring in the models I trained is only 25). How can I improve the cover rate to improve the quality of the models? (if it is possible in SQL Server 2005) I am using SQL Server 2005.
Cheers.
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Jun 12, 2007
Hi,
We have Asynchronous Database Mirroring on SQL Server 2005 SP2 Entprise Edition/Windows 2000 Advanced Server. We noticed that log sent rate is quite low (average 1.3 MB/sec) in most of the cases whereas "Log bytes flushed/sec" is high (1.4 MB/sec) as a result Log send queue keeps on increasing and finally taking all the transaction log space. Our disk queue length is always in range of 0.01. And prinicipal and mirror servers are on local LAN.
I tried on low end server and high end server and in both cases Log sent rate is approx 1.3 MB/sec (Maximum 4 MB/sec).
Is there any limitation on Log sent rate?
How can we improve on log sent rate? Since both servers are on local LAN, network bandwith does not seems to be an issue.
Any help is greatly appreciated.
Thanks,
Ramesh
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Oct 16, 2005
I have a procedure that requires picking up the Rate based on Effective Date. This is what I have so far:
SELECT
SHPD.ProductID,
SHPD.ReceivedDate,
SHPD.Shipper,
SHIP.UnitRate
FROM tblShipmentDet SHPD
LEFT OUTER JOIN tblShippers ON SHIP.ProductID = SHPD.ProductID AND SHIP.Shipper = SHPD.Shipper AND Max???(SHIP.Effectivedate) <= SHPD.ReceivedDate
Because there can be more than 1 Shipper record, I would somehow need to pickup the Maximum EffectiveDate in each case. I realize I cannot use the Max aggregate in the JOIN. Not sure where to go from here. On the Mainframe I used a LOOKUP function that would return the correct EffectiveDate. Help would be appreciated.
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