Showing posts with label updates. Show all posts
Showing posts with label updates. Show all posts

Wednesday, March 21, 2012

Measuring daily Inserts/updates on a production databse

I want to measure updates/Insertion rate of my databse in order to measure that how percent the databses is booked for insert and update.

can some one can suggest me the mechanism or other resource for doing this work...

thanxs in advance

It is not very clear what kind of data you are hoping to capture.

Perhaps looking at some of the Performance Monitor counters could help.

Perhaps some of the dynamic system views, such as: sys.dm_db_file_space_usage

|||I want to measure/calculate that how many number of Inserts and Updates operated on my database let say AAA|||

probably you want to find out the number of transaction per database. Read : http://msdn2.microsoft.com/en-us/library/ms189883.aspx.

Madhu

|||In SQL 2005 you can also look at sys.dm_db_index_operational_stats.sql

Monday, March 19, 2012

Measure change updates in Fact tables

Is there an industry standard method to populate Fact table columns with the
amount of change of a measure from one row to the next?
I have a FactSubscriptions (1 row = 1 week), and I wold like to have a
column of the price change from the previous week.
I'm wrestling with using tsql to join the Fact to itself offset by one week.
Progress is slowly being made, but I'm saying to myself "There's gotta be an
easier way!"
I at least need some keywords to do further research.
thanks,
Conrad
This type of query is usually done in the OLAP structures using MDX. Doing
it in t-sql would result in a poor performance.
If you do need to do it in t-sql please post sample of data and structures.
For example, how is date stored in your tables? As a datetime or you have a
week number or something?
MC
"Conrad" <Conrad@.discussions.microsoft.com> wrote in message
news:45C056A5-A015-4517-9CD8-F9D46D868968@.microsoft.com...
> Is there an industry standard method to populate Fact table columns with
> the
> amount of change of a measure from one row to the next?
> I have a FactSubscriptions (1 row = 1 week), and I wold like to have a
> column of the price change from the previous week.
> I'm wrestling with using tsql to join the Fact to itself offset by one
> week.
> Progress is slowly being made, but I'm saying to myself "There's gotta be
> an
> easier way!"
> I at least need some keywords to do further research.
> thanks,
> Conrad
>
|||1. Could you give me some OLAP/MDX keywords I could research further?
2. I have both WeekID and a date, but the "offset join" is done by WeekID.
I don't know OLAP or MDX yet, so I'll need to do this project in tsql. The
data is small, so
performance is not a problem.
Here's a representation of the data and tsql:
Table A
ID WeekID CustID Price PriceChange
1 1 90 100 0
2 2 90 110 10
3 3 90 110 0
4 4 90 110 0
5 1 91 100 0
6 2 91 100 0
7 3 91 120 20
8 4 91 120 0
Insert Table A Into ##TempB [sic]
Select ID, WeekID, CustID
From A
Inner Join ##TempB
On A.WeekID = ##TempB + 1
And A.CustID = ##TempB.CustID
tia,
Conrad
"MC" wrote:

> This type of query is usually done in the OLAP structures using MDX. Doing
> it in t-sql would result in a poor performance.
> If you do need to do it in t-sql please post sample of data and structures.
> For example, how is date stored in your tables? As a datetime or you have a
> week number or something?
>
> MC
>
> "Conrad" <Conrad@.discussions.microsoft.com> wrote in message
> news:45C056A5-A015-4517-9CD8-F9D46D868968@.microsoft.com...
>
>
|||You obviously need price change over the weeks for each custID (customer?).
Does this wokr for you?
select
A.price,
isnull((select A2.price from tableA A2 where A2.weekID = A.WeekID - 1
and A2.CustID = A.CustID), A.price) as PreviousPrice,
A.WeekID,
A.CustID
from
tableA A
Alternatively, you can use join as you did but using the same table.
select
A.price,
isnull(A2.Price,A.Price) as PreviousPrice,
A.WeekID,
A.CustID
from
tableA A
left join TableA A2 on A.WeekID = A2.WeekID - 1 ANDA.CustID = A2.CustID
MC
"Conrad" <Conrad@.discussions.microsoft.com> wrote in message
news:0E83399D-4B5C-40CE-988F-D58F9898F9E5@.microsoft.com...[vbcol=seagreen]
> 1. Could you give me some OLAP/MDX keywords I could research further?
> 2. I have both WeekID and a date, but the "offset join" is done by WeekID.
> I don't know OLAP or MDX yet, so I'll need to do this project in tsql. The
> data is small, so
> performance is not a problem.
> Here's a representation of the data and tsql:
> Table A
> ID WeekID CustID Price PriceChange
> 1 1 90 100 0
> 2 2 90 110 10
> 3 3 90 110 0
> 4 4 90 110 0
> 5 1 91 100 0
> 6 2 91 100 0
> 7 3 91 120 20
> 8 4 91 120 0
> Insert Table A Into ##TempB [sic]
> Select ID, WeekID, CustID
> From A
> Inner Join ##TempB
> On A.WeekID = ##TempB + 1
> And A.CustID = ##TempB.CustID
>
> tia,
> Conrad
>
> "MC" wrote:

Measure change updates in Fact tables

Is there an industry standard method to populate Fact table columns with the
amount of change of a measure from one row to the next?
I have a FactSubscriptions (1 row = 1 week), and I wold like to have a
column of the price change from the previous week.
I'm wrestling with using tsql to join the Fact to itself offset by one week.
Progress is slowly being made, but I'm saying to myself "There's gotta be an
easier way!"
I at least need some keywords to do further research.
thanks,
ConradThis type of query is usually done in the OLAP structures using MDX. Doing
it in t-sql would result in a poor performance.
If you do need to do it in t-sql please post sample of data and structures.
For example, how is date stored in your tables? As a datetime or you have a
week number or something?
MC
"Conrad" <Conrad@.discussions.microsoft.com> wrote in message
news:45C056A5-A015-4517-9CD8-F9D46D868968@.microsoft.com...
> Is there an industry standard method to populate Fact table columns with
> the
> amount of change of a measure from one row to the next?
> I have a FactSubscriptions (1 row = 1 week), and I wold like to have a
> column of the price change from the previous week.
> I'm wrestling with using tsql to join the Fact to itself offset by one
> week.
> Progress is slowly being made, but I'm saying to myself "There's gotta be
> an
> easier way!"
> I at least need some keywords to do further research.
> thanks,
> Conrad
>|||1. Could you give me some OLAP/MDX keywords I could research further?
2. I have both WeekID and a date, but the "offset join" is done by WeekID.
I don't know OLAP or MDX yet, so I'll need to do this project in tsql. The
data is small, so
performance is not a problem.
Here's a representation of the data and tsql:
Table A
ID WeekID CustID Price PriceChange
1 1 90 100 0
2 2 90 110 10
3 3 90 110 0
4 4 90 110 0
5 1 91 100 0
6 2 91 100 0
7 3 91 120 20
8 4 91 120 0
Insert Table A Into ##TempB [sic]
Select ID, WeekID, CustID
From A
Inner Join ##TempB
On A.WeekID = ##TempB + 1
And A.CustID = ##TempB.CustID
tia,
Conrad
"MC" wrote:

> This type of query is usually done in the OLAP structures using MDX. Doing
> it in t-sql would result in a poor performance.
> If you do need to do it in t-sql please post sample of data and structures
.
> For example, how is date stored in your tables? As a datetime or you have
a
> week number or something?
>
> MC
>
> "Conrad" <Conrad@.discussions.microsoft.com> wrote in message
> news:45C056A5-A015-4517-9CD8-F9D46D868968@.microsoft.com...
>
>|||You obviously need price change over the weeks for each custID (customer?).
Does this wokr for you?
select
A.price,
isnull((select A2.price from tableA A2 where A2.weekID = A.WeekID - 1
and A2.CustID = A.CustID), A.price) as PreviousPrice,
A.WeekID,
A.CustID
from
tableA A
Alternatively, you can use join as you did but using the same table.
select
A.price,
isnull(A2.Price,A.Price) as PreviousPrice,
A.WeekID,
A.CustID
from
tableA A
left join TableA A2 on A.WeekID = A2.WeekID - 1 ANDA.CustID = A2.CustID
MC
"Conrad" <Conrad@.discussions.microsoft.com> wrote in message
news:0E83399D-4B5C-40CE-988F-D58F9898F9E5@.microsoft.com...[vbcol=seagreen]
> 1. Could you give me some OLAP/MDX keywords I could research further?
> 2. I have both WeekID and a date, but the "offset join" is done by WeekID.
> I don't know OLAP or MDX yet, so I'll need to do this project in tsql. The
> data is small, so
> performance is not a problem.
> Here's a representation of the data and tsql:
> Table A
> ID WeekID CustID Price PriceChange
> 1 1 90 100 0
> 2 2 90 110 10
> 3 3 90 110 0
> 4 4 90 110 0
> 5 1 91 100 0
> 6 2 91 100 0
> 7 3 91 120 20
> 8 4 91 120 0
> Insert Table A Into ##TempB [sic]
> Select ID, WeekID, CustID
> From A
> Inner Join ##TempB
> On A.WeekID = ##TempB + 1
> And A.CustID = ##TempB.CustID
>
> tia,
> Conrad
>
> "MC" wrote:
>