I have a Fact Table with a ID column as Primary key and clustered index is created. And also I have 4 dimensions FK's of data type INTEGER. And finally, I have one aggregation measure in the Fact Table.
Now, my situation is How can I improve the speed of querying the fact table by creating any of the below indexes?
1. XML
2. Spatial
3. Clustered
4. Non-Clustered
How do I correctly populate a fact table with the surrogate key from the dimension table?
View 4 Replies View RelatedSay you have a fact table with a few columns that all reference the same key column in a dimension table, you want to write a view to return the information for those keys?
USE MyTestDB;
GO
SET NOCOUNT ON;
IF OBJECT_ID ('dbo.FactTemp' ,'U') IS NOT NULL
DROP TABLE dbo.FactTemp;
[Code] ....
I'm using very small data at the moment, and the query plan and statistics don't really say which way.
How to use temporary table in SSIS ?
View 2 Replies View RelatedI have a large fact table spread across tens of partitions (appx. 1TB each). I found that the business does not need much of the columns in the table. So, as an optimization action, I decided to get rid of these un-needed columns.What is the efficient way to achieve this? Can I simply drop these columns from the table, or use a new table with the reduced structure?
View 2 Replies View RelatedI have a SQL VIEW with col1, col2, col3. I need to add a new column to the view col4 coming from a TABLE in SQL Server.
View 4 Replies View RelatedI am putting together an invoice for my company. I have a text box describing each section of the invoice, followed by a table to list out the charges. I am using multiple tables based on what type of charge the client is receiving.Â
I would like to hide each section if there are no items purchased of that type. I can do this with the table using the expression "=CountRows() < 1", but I do not know how to refer to that table (call it Tablix1 for the sake of discussion) for the text box. I've tried using a ReportItems function as my basis, without success.Â
I am trying to create a sample table in the Azure SQL  Data warehouse but its giving me a syntax error Incorrect syntax near the keyword 'CLUSTERED'.
CREATE TABLE [dbo].[FactInternetSales]
( [ProductKey] int NOT NULL
, [OrderDateKey] int NOT NULL
, [CustomerKey] int NOT NULL
, [PromotionKey] int NOT NULL
[Code] ....
what's the correct syntax
I have table having around 100 million rows.Everyday we have an ETL process in which table will be trucnated and relaoded. Will creating a partition on the table increase the inserting speed?
View 4 Replies View RelatedI have a transaction table having about 40 crore rows in source. It don't have timestamp and unique key columns. It have only Bill_month and Bill_Year columns. Actually for loading this table into staging I have added a new datetime column by adding default bill_date as 01. Then
* First we delete last 3 month data from staging tables.
* Get last 3 months data from source table.
* Load that 3 months data from source to staging table.Â
We do this because we only get update for last three months data. Now I have to include this transaction table as Fact table in DW. What will be the best practice for loading the fact table by picking data form staging table. Also we have to look up with dimensions for Foreign Keys.Â
* Should I implement the same method of deleting last 3 months records and loading them again.Â
I have heard from my client that they are facing duplicate data issue on one of the fact table.
Basically there is a view built on fact table and client access the data through the views.
There warehouse is loaded daily through SSIS packages. The duplicate records issue is only when the views are queried during the data loading process. The duplicates are gone when the data load is completed.
Hi,
Please help me out in loading the fact tables
I had used lookup on DIM table to get my SUK and if I use union transformation to get the out put from each lookup and then loading the data with some condition the data in my fact is not loading in a proper format.
The union transformation is splitting the out put in to different records
Please do inform me about which transformation should be used to get the data from lookup tables.
Or please do inform me the approach to load the fact table in SSIS.
I€™m basically INFORMATICA resource and I€™m implementing in terms of INFORMATICA
I am using a WriteBack Partition to receive data from various inputs and appends any new data that I add to the WB partition.Â
I am able to read the data immediately in the WB partition through a Fact partition query. This is working at this point as desired.
Eventually I want to move the data from the WB partition into Fact Partition. How can I do this, manually and through automation.Â
I am stuck in the following scenario.
Tbl_Loan
Trans_ID
Emp_ID
Guarantor_1_ID
Guarantor_1_ID
TRN_01
EMP_01
[code]....
Hello,
I have developed some packages to load data into "Fact" tables in the data warehouse.
Some packages are OK, other ones not. What is the problem?: some packages load fact tables with lots of "Lookup - Data Flow Transformation" into the "data flow task" (lookup against dimension tables) but they are very very slow, too much slow to be choosen as a solution.
Do you have any other solutions to avoid using "Lookup - Data Flow Transformation"? Any other solution (SSIS, TSQL and so on....) is welcome to speed up the Fact table loading process.
Thank in advance
Hi,
I use lookups to map surrogate of level 1 dimensions to my fact tables in SSIS.
But how to handle a level 2 dimension with a ValidFrom and a ValidUntil date field?
I do not use an IsCurrent column, because this could problem with late arriving facts.
- In dts I used an SQL statement like this:
update SA
SET SA.DimProdRef = Dim.RecordID
FROM SAWarenEingang SA, DimProd Dim
where SA.ProduktNumber = Dim.ProduktNumber
and SA.ArtikelkontoBewegungsdatum between Dim.ValidFrom and Dim.ValidUntil
Now in SSIS I want to handle the whole thing in the data flow without using a staging table:
- Using Lookups: I would have to pass the date column for each inside the fact table into the lookup. That does not work.
- Using Execute SQL in the data flow: would be very slow, because the statement will be executed for any line in the dataflow
Any ideas?
Best regards,
Stefoon
I have  a column in which Email data is available likeÂ
clicuanan@aspenms.com(M)
jteply@mac.com(M)
How to extract in the below format
clicuanan@aspenms.com
jteply@mac.com
tjones@jpmc.com
I am preparing for the exam anybody know of any braindump sites that have data
warehousing braindumps?
Hello,
I am new to SQL Server. I want to know about DATA WAREHOUSING AND OLAP. Please help me.
Can anyone suggest a good resource that outlines data warehouse solutions using SQL 7.0 or higher?
View 1 Replies View RelatedHi,
I need to implement/set up the Data warehouse/Data mart in one of the department in my company by using SQL server 2005. Do any body knows the steps what I need to follow?
It will be more appreciate that, if any body gives some of the links which will help me to do the implementation/development of the same.
I do have the basic idea however I may face some of the difficulties when I start such as, does the SQL server reporting service allow the end user to customize the report based on their needs etc.?, so any of them having experience in this field please reply me.
Thanks
Ajith Nair
I am working on to create a data warehouse. I have made a database which will be the data warehouse and will consist of dimension and fact tables. I know that other than dimension and fact table a data warehouse should also consist of a meta data, now my question is what should be the structure of metadata and all the information it should have?
View 2 Replies View RelatedHi:
I am planning to give the microsoft 70-019 data warehousing exam. I am not able to find any good resources to prepare for the exam. Please help!
Thanks in advance
Hi
We are starting with designing a datawarehouse for my company. I have done some reading on the concepts and steps involved, but what I am seriously lacking is some examples. I'd like to read through some real examples of data warehouses that worked including the full design diagrams.
Can anyone direct me to some good sites for this?
Thanks,
TeaaZA
Hello, everone:
Anybody can offer technical information about DTS appied in data warehousing? Website, tutorial, forum and books will be great. Thanks.
ZYT
How do you run a stored procedure on PDW via SSIS? I've tried Execute SQL Task and Execute T-SQL Task but in both cases the task will run and complete almost immediately. Task shows success, no errors, but nothing happens in PDW.  PDW admin console does not even register the query. Procedures run fine manually from SQL Server Object Explorer connection.
View 3 Replies View RelatedHow to use Stored Procedures in SSIS?
View 2 Replies View RelatedIs it possible to write a SP (Automate) to generate STATISTICS on any database and then use the output to create the stats on that database.
I ran the tuning adviser and it suggested indexes with lot of STATISTICS on the dev environment. This dev environment is replicated in several other environment with data size in these environment varying. I would  like to know if I can create a SP which generates STATISTICS information pertaining to specific database environment for the query in question for tuning.Â
SSRS : I want to add parameter to my Cube from report is generating ...
View 5 Replies View RelatedI have a table that is increasing quite largely each day. By now, I have average 300 million of records over 2.5 years. Before we received our new interface, the data we received was aggregated and thus not that big.The problem is that the table is so huge that I cannot use the Slowly Changing Component. I was thinking about making a temp table where I load the incremental data before I load it into the final data mart table.Based on this temporary table I use a script to compare the temp data with the already existing data in the data mart. However, this requires a compare of each records (300 mil records).
View 3 Replies View RelatedQuestion: Is it feasible to use a star schema dimensional model for an OLTP system that incurs few (750 per day)Sales Orders transactions?
Background: My customer wants to replace an existing OLTP system database because it runs on Oracle and their in-house expertise is in SQL Server. Â The original database developers that designed the Oracle DB have apparently retired. Â The Oracle database has been over-normalized, to say the least. Â The number of sales orders being entered daily is small: about 500-750 per day. Â These entries are done at the five clerks' convenience, from a paper form, and are very unlikely to ever be entered in quick succession. Â Nothing else gets regularly entered into this database except for the occasional change to a customer, but new customers are very few and far between. Â
I've designed a star schema for the replacement database with the Sales Order Header and Sales Order detail table combined into a single 'fact' table, and I've introduced some duplication into dimension tables (like customer) in order to eliminate some of the joins (and confusion) that were built into the original database.
I've never tried this before. Â Is there any reason this would not or should not work?
How to find the CDC enabled date and time in database.
View 3 Replies View RelatedETL Packages are getting failed sometimes(Package Execution Error). Eventhough executing ETL Package again from start, getting the same Error. But after Restarting Sql Service in BI Server, it is working fine. Whether it is the issue from Developer Code side or from server side.
View 7 Replies View Related